2024 lines
71 KiB
C
2024 lines
71 KiB
C
/* ====================================================================
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* Copyright (c) 2001-2011 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* openssl-core@openssl.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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*/
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#include <openssl/opensslconf.h>
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#ifndef OPENSSL_NO_AES
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#include <openssl/crypto.h>
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# include <openssl/evp.h>
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# include <openssl/err.h>
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# include <string.h>
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# include <assert.h>
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# include <openssl/aes.h>
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# include "evp_locl.h"
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# include "modes_lcl.h"
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# include <openssl/rand.h>
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# undef EVP_CIPH_FLAG_FIPS
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# define EVP_CIPH_FLAG_FIPS 0
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typedef struct {
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union {
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double align;
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AES_KEY ks;
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} ks;
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block128_f block;
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union {
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cbc128_f cbc;
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ctr128_f ctr;
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} stream;
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} EVP_AES_KEY;
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typedef struct {
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union {
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double align;
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AES_KEY ks;
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} ks; /* AES key schedule to use */
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int key_set; /* Set if key initialised */
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int iv_set; /* Set if an iv is set */
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GCM128_CONTEXT gcm;
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unsigned char *iv; /* Temporary IV store */
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int ivlen; /* IV length */
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int taglen;
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int iv_gen; /* It is OK to generate IVs */
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int tls_aad_len; /* TLS AAD length */
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ctr128_f ctr;
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} EVP_AES_GCM_CTX;
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typedef struct {
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union {
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double align;
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AES_KEY ks;
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} ks1, ks2; /* AES key schedules to use */
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XTS128_CONTEXT xts;
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void (*stream) (const unsigned char *in,
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unsigned char *out, size_t length,
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const AES_KEY *key1, const AES_KEY *key2,
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const unsigned char iv[16]);
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} EVP_AES_XTS_CTX;
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typedef struct {
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union {
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double align;
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AES_KEY ks;
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} ks; /* AES key schedule to use */
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int key_set; /* Set if key initialised */
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int iv_set; /* Set if an iv is set */
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int tag_set; /* Set if tag is valid */
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int len_set; /* Set if message length set */
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int L, M; /* L and M parameters from RFC3610 */
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CCM128_CONTEXT ccm;
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ccm128_f str;
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} EVP_AES_CCM_CTX;
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# define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4))
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# ifdef VPAES_ASM
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int vpaes_set_encrypt_key(const unsigned char *userKey, int bits,
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AES_KEY *key);
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int vpaes_set_decrypt_key(const unsigned char *userKey, int bits,
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AES_KEY *key);
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void vpaes_encrypt(const unsigned char *in, unsigned char *out,
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const AES_KEY *key);
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void vpaes_decrypt(const unsigned char *in, unsigned char *out,
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const AES_KEY *key);
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void vpaes_cbc_encrypt(const unsigned char *in,
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unsigned char *out,
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size_t length,
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const AES_KEY *key, unsigned char *ivec, int enc);
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# endif
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# ifdef BSAES_ASM
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void bsaes_cbc_encrypt(const unsigned char *in, unsigned char *out,
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size_t length, const AES_KEY *key,
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unsigned char ivec[16], int enc);
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void bsaes_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
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size_t len, const AES_KEY *key,
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const unsigned char ivec[16]);
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void bsaes_xts_encrypt(const unsigned char *inp, unsigned char *out,
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size_t len, const AES_KEY *key1,
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const AES_KEY *key2, const unsigned char iv[16]);
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void bsaes_xts_decrypt(const unsigned char *inp, unsigned char *out,
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size_t len, const AES_KEY *key1,
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const AES_KEY *key2, const unsigned char iv[16]);
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# endif
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# ifdef AES_CTR_ASM
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void AES_ctr32_encrypt(const unsigned char *in, unsigned char *out,
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size_t blocks, const AES_KEY *key,
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const unsigned char ivec[AES_BLOCK_SIZE]);
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# endif
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# ifdef AES_XTS_ASM
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void AES_xts_encrypt(const char *inp, char *out, size_t len,
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const AES_KEY *key1, const AES_KEY *key2,
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const unsigned char iv[16]);
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void AES_xts_decrypt(const char *inp, char *out, size_t len,
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const AES_KEY *key1, const AES_KEY *key2,
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const unsigned char iv[16]);
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# endif
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# if defined(OPENSSL_CPUID_OBJ) && (defined(__powerpc__) || defined(__ppc__) || defined(_ARCH_PPC))
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# include "ppc_arch.h"
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# ifdef VPAES_ASM
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# define VPAES_CAPABLE (OPENSSL_ppccap_P & PPC_ALTIVEC)
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# endif
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# define HWAES_CAPABLE (OPENSSL_ppccap_P & PPC_CRYPTO207)
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# define HWAES_set_encrypt_key aes_p8_set_encrypt_key
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# define HWAES_set_decrypt_key aes_p8_set_decrypt_key
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# define HWAES_encrypt aes_p8_encrypt
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# define HWAES_decrypt aes_p8_decrypt
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# define HWAES_cbc_encrypt aes_p8_cbc_encrypt
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# define HWAES_ctr32_encrypt_blocks aes_p8_ctr32_encrypt_blocks
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# endif
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# if defined(AES_ASM) && !defined(I386_ONLY) && ( \
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((defined(__i386) || defined(__i386__) || \
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defined(_M_IX86)) && defined(OPENSSL_IA32_SSE2))|| \
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defined(__x86_64) || defined(__x86_64__) || \
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defined(_M_AMD64) || defined(_M_X64) || \
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defined(__INTEL__) )
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extern unsigned int OPENSSL_ia32cap_P[];
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# ifdef VPAES_ASM
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# define VPAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
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# endif
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# ifdef BSAES_ASM
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# define BSAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
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# endif
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/*
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* AES-NI section
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*/
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# define AESNI_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(57-32)))
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int aesni_set_encrypt_key(const unsigned char *userKey, int bits,
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AES_KEY *key);
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int aesni_set_decrypt_key(const unsigned char *userKey, int bits,
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AES_KEY *key);
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void aesni_encrypt(const unsigned char *in, unsigned char *out,
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const AES_KEY *key);
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void aesni_decrypt(const unsigned char *in, unsigned char *out,
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const AES_KEY *key);
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void aesni_ecb_encrypt(const unsigned char *in,
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unsigned char *out,
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size_t length, const AES_KEY *key, int enc);
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void aesni_cbc_encrypt(const unsigned char *in,
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unsigned char *out,
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size_t length,
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const AES_KEY *key, unsigned char *ivec, int enc);
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void aesni_ctr32_encrypt_blocks(const unsigned char *in,
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unsigned char *out,
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size_t blocks,
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const void *key, const unsigned char *ivec);
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void aesni_xts_encrypt(const unsigned char *in,
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unsigned char *out,
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size_t length,
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const AES_KEY *key1, const AES_KEY *key2,
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const unsigned char iv[16]);
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void aesni_xts_decrypt(const unsigned char *in,
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unsigned char *out,
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size_t length,
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const AES_KEY *key1, const AES_KEY *key2,
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const unsigned char iv[16]);
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void aesni_ccm64_encrypt_blocks(const unsigned char *in,
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unsigned char *out,
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size_t blocks,
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const void *key,
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const unsigned char ivec[16],
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unsigned char cmac[16]);
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void aesni_ccm64_decrypt_blocks(const unsigned char *in,
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unsigned char *out,
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size_t blocks,
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const void *key,
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const unsigned char ivec[16],
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unsigned char cmac[16]);
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# if defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
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size_t aesni_gcm_encrypt(const unsigned char *in,
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unsigned char *out,
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size_t len,
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const void *key, unsigned char ivec[16], u64 *Xi);
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# define AES_gcm_encrypt aesni_gcm_encrypt
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size_t aesni_gcm_decrypt(const unsigned char *in,
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unsigned char *out,
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size_t len,
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const void *key, unsigned char ivec[16], u64 *Xi);
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# define AES_gcm_decrypt aesni_gcm_decrypt
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void gcm_ghash_avx(u64 Xi[2], const u128 Htable[16], const u8 *in,
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size_t len);
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# define AES_GCM_ASM(gctx) (gctx->ctr==aesni_ctr32_encrypt_blocks && \
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gctx->gcm.ghash==gcm_ghash_avx)
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# define AES_GCM_ASM2(gctx) (gctx->gcm.block==(block128_f)aesni_encrypt && \
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gctx->gcm.ghash==gcm_ghash_avx)
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# undef AES_GCM_ASM2 /* minor size optimization */
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# endif
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static int aesni_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
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const unsigned char *iv, int enc)
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{
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int ret, mode;
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EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
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mode = ctx->cipher->flags & EVP_CIPH_MODE;
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if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
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&& !enc) {
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ret = aesni_set_decrypt_key(key, ctx->key_len * 8, ctx->cipher_data);
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dat->block = (block128_f) aesni_decrypt;
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dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
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(cbc128_f) aesni_cbc_encrypt : NULL;
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} else {
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ret = aesni_set_encrypt_key(key, ctx->key_len * 8, ctx->cipher_data);
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dat->block = (block128_f) aesni_encrypt;
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if (mode == EVP_CIPH_CBC_MODE)
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dat->stream.cbc = (cbc128_f) aesni_cbc_encrypt;
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else if (mode == EVP_CIPH_CTR_MODE)
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dat->stream.ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
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else
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dat->stream.cbc = NULL;
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}
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if (ret < 0) {
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EVPerr(EVP_F_AESNI_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
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return 0;
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}
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return 1;
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}
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static int aesni_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
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const unsigned char *in, size_t len)
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{
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aesni_cbc_encrypt(in, out, len, ctx->cipher_data, ctx->iv, ctx->encrypt);
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return 1;
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}
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static int aesni_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
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const unsigned char *in, size_t len)
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{
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size_t bl = ctx->cipher->block_size;
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if (len < bl)
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return 1;
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aesni_ecb_encrypt(in, out, len, ctx->cipher_data, ctx->encrypt);
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return 1;
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}
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# define aesni_ofb_cipher aes_ofb_cipher
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static int aesni_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
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const unsigned char *in, size_t len);
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# define aesni_cfb_cipher aes_cfb_cipher
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static int aesni_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
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const unsigned char *in, size_t len);
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# define aesni_cfb8_cipher aes_cfb8_cipher
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static int aesni_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
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const unsigned char *in, size_t len);
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# define aesni_cfb1_cipher aes_cfb1_cipher
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static int aesni_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
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const unsigned char *in, size_t len);
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# define aesni_ctr_cipher aes_ctr_cipher
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static int aesni_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
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const unsigned char *in, size_t len);
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static int aesni_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
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const unsigned char *iv, int enc)
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{
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EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
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if (!iv && !key)
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return 1;
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if (key) {
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aesni_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
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CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f) aesni_encrypt);
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gctx->ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
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/*
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* If we have an iv can set it directly, otherwise use saved IV.
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*/
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if (iv == NULL && gctx->iv_set)
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iv = gctx->iv;
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if (iv) {
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CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
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gctx->iv_set = 1;
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}
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gctx->key_set = 1;
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} else {
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/* If key set use IV, otherwise copy */
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if (gctx->key_set)
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CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
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else
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memcpy(gctx->iv, iv, gctx->ivlen);
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gctx->iv_set = 1;
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gctx->iv_gen = 0;
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}
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return 1;
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}
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# define aesni_gcm_cipher aes_gcm_cipher
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static int aesni_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
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const unsigned char *in, size_t len);
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static int aesni_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
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const unsigned char *iv, int enc)
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{
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EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
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if (!iv && !key)
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return 1;
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if (key) {
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/* key_len is two AES keys */
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if (enc) {
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aesni_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
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xctx->xts.block1 = (block128_f) aesni_encrypt;
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xctx->stream = aesni_xts_encrypt;
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} else {
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aesni_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
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xctx->xts.block1 = (block128_f) aesni_decrypt;
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xctx->stream = aesni_xts_decrypt;
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}
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aesni_set_encrypt_key(key + ctx->key_len / 2,
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ctx->key_len * 4, &xctx->ks2.ks);
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xctx->xts.block2 = (block128_f) aesni_encrypt;
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xctx->xts.key1 = &xctx->ks1;
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}
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if (iv) {
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xctx->xts.key2 = &xctx->ks2;
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memcpy(ctx->iv, iv, 16);
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}
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return 1;
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}
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# define aesni_xts_cipher aes_xts_cipher
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static int aesni_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
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const unsigned char *in, size_t len);
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static int aesni_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
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const unsigned char *iv, int enc)
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{
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EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
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if (!iv && !key)
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return 1;
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if (key) {
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aesni_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
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CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
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&cctx->ks, (block128_f) aesni_encrypt);
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cctx->str = enc ? (ccm128_f) aesni_ccm64_encrypt_blocks :
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(ccm128_f) aesni_ccm64_decrypt_blocks;
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cctx->key_set = 1;
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}
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if (iv) {
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memcpy(ctx->iv, iv, 15 - cctx->L);
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cctx->iv_set = 1;
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}
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return 1;
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}
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# define aesni_ccm_cipher aes_ccm_cipher
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static int aesni_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
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const unsigned char *in, size_t len);
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# define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
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static const EVP_CIPHER aesni_##keylen##_##mode = { \
|
|
nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
|
|
flags|EVP_CIPH_##MODE##_MODE, \
|
|
aesni_init_key, \
|
|
aesni_##mode##_cipher, \
|
|
NULL, \
|
|
sizeof(EVP_AES_KEY), \
|
|
NULL,NULL,NULL,NULL }; \
|
|
static const EVP_CIPHER aes_##keylen##_##mode = { \
|
|
nid##_##keylen##_##nmode,blocksize, \
|
|
keylen/8,ivlen, \
|
|
flags|EVP_CIPH_##MODE##_MODE, \
|
|
aes_init_key, \
|
|
aes_##mode##_cipher, \
|
|
NULL, \
|
|
sizeof(EVP_AES_KEY), \
|
|
NULL,NULL,NULL,NULL }; \
|
|
const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
|
|
{ return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
|
|
|
|
# define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
|
|
static const EVP_CIPHER aesni_##keylen##_##mode = { \
|
|
nid##_##keylen##_##mode,blocksize, \
|
|
(EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
|
|
flags|EVP_CIPH_##MODE##_MODE, \
|
|
aesni_##mode##_init_key, \
|
|
aesni_##mode##_cipher, \
|
|
aes_##mode##_cleanup, \
|
|
sizeof(EVP_AES_##MODE##_CTX), \
|
|
NULL,NULL,aes_##mode##_ctrl,NULL }; \
|
|
static const EVP_CIPHER aes_##keylen##_##mode = { \
|
|
nid##_##keylen##_##mode,blocksize, \
|
|
(EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
|
|
flags|EVP_CIPH_##MODE##_MODE, \
|
|
aes_##mode##_init_key, \
|
|
aes_##mode##_cipher, \
|
|
aes_##mode##_cleanup, \
|
|
sizeof(EVP_AES_##MODE##_CTX), \
|
|
NULL,NULL,aes_##mode##_ctrl,NULL }; \
|
|
const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
|
|
{ return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
|
|
|
|
# elif defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
|
|
|
|
# include "sparc_arch.h"
|
|
|
|
extern unsigned int OPENSSL_sparcv9cap_P[];
|
|
|
|
# define SPARC_AES_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_AES)
|
|
|
|
void aes_t4_set_encrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
|
|
void aes_t4_set_decrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
|
|
void aes_t4_encrypt(const unsigned char *in, unsigned char *out,
|
|
const AES_KEY *key);
|
|
void aes_t4_decrypt(const unsigned char *in, unsigned char *out,
|
|
const AES_KEY *key);
|
|
/*
|
|
* Key-length specific subroutines were chosen for following reason.
|
|
* Each SPARC T4 core can execute up to 8 threads which share core's
|
|
* resources. Loading as much key material to registers allows to
|
|
* minimize references to shared memory interface, as well as amount
|
|
* of instructions in inner loops [much needed on T4]. But then having
|
|
* non-key-length specific routines would require conditional branches
|
|
* either in inner loops or on subroutines' entries. Former is hardly
|
|
* acceptable, while latter means code size increase to size occupied
|
|
* by multiple key-length specfic subroutines, so why fight?
|
|
*/
|
|
void aes128_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
|
|
size_t len, const AES_KEY *key,
|
|
unsigned char *ivec);
|
|
void aes128_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
|
|
size_t len, const AES_KEY *key,
|
|
unsigned char *ivec);
|
|
void aes192_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
|
|
size_t len, const AES_KEY *key,
|
|
unsigned char *ivec);
|
|
void aes192_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
|
|
size_t len, const AES_KEY *key,
|
|
unsigned char *ivec);
|
|
void aes256_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
|
|
size_t len, const AES_KEY *key,
|
|
unsigned char *ivec);
|
|
void aes256_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
|
|
size_t len, const AES_KEY *key,
|
|
unsigned char *ivec);
|
|
void aes128_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
|
|
size_t blocks, const AES_KEY *key,
|
|
unsigned char *ivec);
|
|
void aes192_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
|
|
size_t blocks, const AES_KEY *key,
|
|
unsigned char *ivec);
|
|
void aes256_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
|
|
size_t blocks, const AES_KEY *key,
|
|
unsigned char *ivec);
|
|
void aes128_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
|
|
size_t blocks, const AES_KEY *key1,
|
|
const AES_KEY *key2, const unsigned char *ivec);
|
|
void aes128_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
|
|
size_t blocks, const AES_KEY *key1,
|
|
const AES_KEY *key2, const unsigned char *ivec);
|
|
void aes256_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
|
|
size_t blocks, const AES_KEY *key1,
|
|
const AES_KEY *key2, const unsigned char *ivec);
|
|
void aes256_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
|
|
size_t blocks, const AES_KEY *key1,
|
|
const AES_KEY *key2, const unsigned char *ivec);
|
|
|
|
static int aes_t4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
|
|
const unsigned char *iv, int enc)
|
|
{
|
|
int ret, mode, bits;
|
|
EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
|
|
|
|
mode = ctx->cipher->flags & EVP_CIPH_MODE;
|
|
bits = ctx->key_len * 8;
|
|
if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
|
|
&& !enc) {
|
|
ret = 0;
|
|
aes_t4_set_decrypt_key(key, bits, ctx->cipher_data);
|
|
dat->block = (block128_f) aes_t4_decrypt;
|
|
switch (bits) {
|
|
case 128:
|
|
dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
|
|
(cbc128_f) aes128_t4_cbc_decrypt : NULL;
|
|
break;
|
|
case 192:
|
|
dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
|
|
(cbc128_f) aes192_t4_cbc_decrypt : NULL;
|
|
break;
|
|
case 256:
|
|
dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
|
|
(cbc128_f) aes256_t4_cbc_decrypt : NULL;
|
|
break;
|
|
default:
|
|
ret = -1;
|
|
}
|
|
} else {
|
|
ret = 0;
|
|
aes_t4_set_encrypt_key(key, bits, ctx->cipher_data);
|
|
dat->block = (block128_f) aes_t4_encrypt;
|
|
switch (bits) {
|
|
case 128:
|
|
if (mode == EVP_CIPH_CBC_MODE)
|
|
dat->stream.cbc = (cbc128_f) aes128_t4_cbc_encrypt;
|
|
else if (mode == EVP_CIPH_CTR_MODE)
|
|
dat->stream.ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
|
|
else
|
|
dat->stream.cbc = NULL;
|
|
break;
|
|
case 192:
|
|
if (mode == EVP_CIPH_CBC_MODE)
|
|
dat->stream.cbc = (cbc128_f) aes192_t4_cbc_encrypt;
|
|
else if (mode == EVP_CIPH_CTR_MODE)
|
|
dat->stream.ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
|
|
else
|
|
dat->stream.cbc = NULL;
|
|
break;
|
|
case 256:
|
|
if (mode == EVP_CIPH_CBC_MODE)
|
|
dat->stream.cbc = (cbc128_f) aes256_t4_cbc_encrypt;
|
|
else if (mode == EVP_CIPH_CTR_MODE)
|
|
dat->stream.ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
|
|
else
|
|
dat->stream.cbc = NULL;
|
|
break;
|
|
default:
|
|
ret = -1;
|
|
}
|
|
}
|
|
|
|
if (ret < 0) {
|
|
EVPerr(EVP_F_AES_T4_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
# define aes_t4_cbc_cipher aes_cbc_cipher
|
|
static int aes_t4_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
|
|
const unsigned char *in, size_t len);
|
|
|
|
# define aes_t4_ecb_cipher aes_ecb_cipher
|
|
static int aes_t4_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
|
|
const unsigned char *in, size_t len);
|
|
|
|
# define aes_t4_ofb_cipher aes_ofb_cipher
|
|
static int aes_t4_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
|
|
const unsigned char *in, size_t len);
|
|
|
|
# define aes_t4_cfb_cipher aes_cfb_cipher
|
|
static int aes_t4_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
|
|
const unsigned char *in, size_t len);
|
|
|
|
# define aes_t4_cfb8_cipher aes_cfb8_cipher
|
|
static int aes_t4_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
|
|
const unsigned char *in, size_t len);
|
|
|
|
# define aes_t4_cfb1_cipher aes_cfb1_cipher
|
|
static int aes_t4_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
|
|
const unsigned char *in, size_t len);
|
|
|
|
# define aes_t4_ctr_cipher aes_ctr_cipher
|
|
static int aes_t4_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
|
|
const unsigned char *in, size_t len);
|
|
|
|
static int aes_t4_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
|
|
const unsigned char *iv, int enc)
|
|
{
|
|
EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
|
|
if (!iv && !key)
|
|
return 1;
|
|
if (key) {
|
|
int bits = ctx->key_len * 8;
|
|
aes_t4_set_encrypt_key(key, bits, &gctx->ks.ks);
|
|
CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
|
|
(block128_f) aes_t4_encrypt);
|
|
switch (bits) {
|
|
case 128:
|
|
gctx->ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
|
|
break;
|
|
case 192:
|
|
gctx->ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
|
|
break;
|
|
case 256:
|
|
gctx->ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
|
|
break;
|
|
default:
|
|
return 0;
|
|
}
|
|
/*
|
|
* If we have an iv can set it directly, otherwise use saved IV.
|
|
*/
|
|
if (iv == NULL && gctx->iv_set)
|
|
iv = gctx->iv;
|
|
if (iv) {
|
|
CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
|
|
gctx->iv_set = 1;
|
|
}
|
|
gctx->key_set = 1;
|
|
} else {
|
|
/* If key set use IV, otherwise copy */
|
|
if (gctx->key_set)
|
|
CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
|
|
else
|
|
memcpy(gctx->iv, iv, gctx->ivlen);
|
|
gctx->iv_set = 1;
|
|
gctx->iv_gen = 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
# define aes_t4_gcm_cipher aes_gcm_cipher
|
|
static int aes_t4_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
|
|
const unsigned char *in, size_t len);
|
|
|
|
static int aes_t4_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
|
|
const unsigned char *iv, int enc)
|
|
{
|
|
EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
|
|
if (!iv && !key)
|
|
return 1;
|
|
|
|
if (key) {
|
|
int bits = ctx->key_len * 4;
|
|
xctx->stream = NULL;
|
|
/* key_len is two AES keys */
|
|
if (enc) {
|
|
aes_t4_set_encrypt_key(key, bits, &xctx->ks1.ks);
|
|
xctx->xts.block1 = (block128_f) aes_t4_encrypt;
|
|
switch (bits) {
|
|
case 128:
|
|
xctx->stream = aes128_t4_xts_encrypt;
|
|
break;
|
|
# if 0 /* not yet */
|
|
case 192:
|
|
xctx->stream = aes192_t4_xts_encrypt;
|
|
break;
|
|
# endif
|
|
case 256:
|
|
xctx->stream = aes256_t4_xts_encrypt;
|
|
break;
|
|
default:
|
|
return 0;
|
|
}
|
|
} else {
|
|
aes_t4_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
|
|
xctx->xts.block1 = (block128_f) aes_t4_decrypt;
|
|
switch (bits) {
|
|
case 128:
|
|
xctx->stream = aes128_t4_xts_decrypt;
|
|
break;
|
|
# if 0 /* not yet */
|
|
case 192:
|
|
xctx->stream = aes192_t4_xts_decrypt;
|
|
break;
|
|
# endif
|
|
case 256:
|
|
xctx->stream = aes256_t4_xts_decrypt;
|
|
break;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
aes_t4_set_encrypt_key(key + ctx->key_len / 2,
|
|
ctx->key_len * 4, &xctx->ks2.ks);
|
|
xctx->xts.block2 = (block128_f) aes_t4_encrypt;
|
|
|
|
xctx->xts.key1 = &xctx->ks1;
|
|
}
|
|
|
|
if (iv) {
|
|
xctx->xts.key2 = &xctx->ks2;
|
|
memcpy(ctx->iv, iv, 16);
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
# define aes_t4_xts_cipher aes_xts_cipher
|
|
static int aes_t4_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
|
|
const unsigned char *in, size_t len);
|
|
|
|
static int aes_t4_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
|
|
const unsigned char *iv, int enc)
|
|
{
|
|
EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
|
|
if (!iv && !key)
|
|
return 1;
|
|
if (key) {
|
|
int bits = ctx->key_len * 8;
|
|
aes_t4_set_encrypt_key(key, bits, &cctx->ks.ks);
|
|
CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
|
|
&cctx->ks, (block128_f) aes_t4_encrypt);
|
|
# if 0 /* not yet */
|
|
switch (bits) {
|
|
case 128:
|
|
cctx->str = enc ? (ccm128_f) aes128_t4_ccm64_encrypt :
|
|
(ccm128_f) ae128_t4_ccm64_decrypt;
|
|
break;
|
|
case 192:
|
|
cctx->str = enc ? (ccm128_f) aes192_t4_ccm64_encrypt :
|
|
(ccm128_f) ae192_t4_ccm64_decrypt;
|
|
break;
|
|
case 256:
|
|
cctx->str = enc ? (ccm128_f) aes256_t4_ccm64_encrypt :
|
|
(ccm128_f) ae256_t4_ccm64_decrypt;
|
|
break;
|
|
default:
|
|
return 0;
|
|
}
|
|
# else
|
|
cctx->str = NULL;
|
|
# endif
|
|
cctx->key_set = 1;
|
|
}
|
|
if (iv) {
|
|
memcpy(ctx->iv, iv, 15 - cctx->L);
|
|
cctx->iv_set = 1;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
# define aes_t4_ccm_cipher aes_ccm_cipher
|
|
static int aes_t4_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
|
|
const unsigned char *in, size_t len);
|
|
|
|
# define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
|
|
static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
|
|
nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
|
|
flags|EVP_CIPH_##MODE##_MODE, \
|
|
aes_t4_init_key, \
|
|
aes_t4_##mode##_cipher, \
|
|
NULL, \
|
|
sizeof(EVP_AES_KEY), \
|
|
NULL,NULL,NULL,NULL }; \
|
|
static const EVP_CIPHER aes_##keylen##_##mode = { \
|
|
nid##_##keylen##_##nmode,blocksize, \
|
|
keylen/8,ivlen, \
|
|
flags|EVP_CIPH_##MODE##_MODE, \
|
|
aes_init_key, \
|
|
aes_##mode##_cipher, \
|
|
NULL, \
|
|
sizeof(EVP_AES_KEY), \
|
|
NULL,NULL,NULL,NULL }; \
|
|
const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
|
|
{ return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
|
|
|
|
# define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
|
|
static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
|
|
nid##_##keylen##_##mode,blocksize, \
|
|
(EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
|
|
flags|EVP_CIPH_##MODE##_MODE, \
|
|
aes_t4_##mode##_init_key, \
|
|
aes_t4_##mode##_cipher, \
|
|
aes_##mode##_cleanup, \
|
|
sizeof(EVP_AES_##MODE##_CTX), \
|
|
NULL,NULL,aes_##mode##_ctrl,NULL }; \
|
|
static const EVP_CIPHER aes_##keylen##_##mode = { \
|
|
nid##_##keylen##_##mode,blocksize, \
|
|
(EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
|
|
flags|EVP_CIPH_##MODE##_MODE, \
|
|
aes_##mode##_init_key, \
|
|
aes_##mode##_cipher, \
|
|
aes_##mode##_cleanup, \
|
|
sizeof(EVP_AES_##MODE##_CTX), \
|
|
NULL,NULL,aes_##mode##_ctrl,NULL }; \
|
|
const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
|
|
{ return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
|
|
|
|
# else
|
|
|
|
# define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
|
|
static const EVP_CIPHER aes_##keylen##_##mode = { \
|
|
nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
|
|
flags|EVP_CIPH_##MODE##_MODE, \
|
|
aes_init_key, \
|
|
aes_##mode##_cipher, \
|
|
NULL, \
|
|
sizeof(EVP_AES_KEY), \
|
|
NULL,NULL,NULL,NULL }; \
|
|
const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
|
|
{ return &aes_##keylen##_##mode; }
|
|
|
|
# define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
|
|
static const EVP_CIPHER aes_##keylen##_##mode = { \
|
|
nid##_##keylen##_##mode,blocksize, \
|
|
(EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
|
|
flags|EVP_CIPH_##MODE##_MODE, \
|
|
aes_##mode##_init_key, \
|
|
aes_##mode##_cipher, \
|
|
aes_##mode##_cleanup, \
|
|
sizeof(EVP_AES_##MODE##_CTX), \
|
|
NULL,NULL,aes_##mode##_ctrl,NULL }; \
|
|
const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
|
|
{ return &aes_##keylen##_##mode; }
|
|
# endif
|
|
|
|
# if defined(OPENSSL_CPUID_OBJ) && (defined(__arm__) || defined(__arm) || defined(__aarch64__))
|
|
# include "arm_arch.h"
|
|
# if __ARM_MAX_ARCH__>=7
|
|
# if defined(BSAES_ASM)
|
|
# define BSAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
|
|
# endif
|
|
# define HWAES_CAPABLE (OPENSSL_armcap_P & ARMV8_AES)
|
|
# define HWAES_set_encrypt_key aes_v8_set_encrypt_key
|
|
# define HWAES_set_decrypt_key aes_v8_set_decrypt_key
|
|
# define HWAES_encrypt aes_v8_encrypt
|
|
# define HWAES_decrypt aes_v8_decrypt
|
|
# define HWAES_cbc_encrypt aes_v8_cbc_encrypt
|
|
# define HWAES_ctr32_encrypt_blocks aes_v8_ctr32_encrypt_blocks
|
|
# endif
|
|
# endif
|
|
|
|
# if defined(HWAES_CAPABLE)
|
|
int HWAES_set_encrypt_key(const unsigned char *userKey, const int bits,
|
|
AES_KEY *key);
|
|
int HWAES_set_decrypt_key(const unsigned char *userKey, const int bits,
|
|
AES_KEY *key);
|
|
void HWAES_encrypt(const unsigned char *in, unsigned char *out,
|
|
const AES_KEY *key);
|
|
void HWAES_decrypt(const unsigned char *in, unsigned char *out,
|
|
const AES_KEY *key);
|
|
void HWAES_cbc_encrypt(const unsigned char *in, unsigned char *out,
|
|
size_t length, const AES_KEY *key,
|
|
unsigned char *ivec, const int enc);
|
|
void HWAES_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
|
|
size_t len, const AES_KEY *key,
|
|
const unsigned char ivec[16]);
|
|
# endif
|
|
|
|
# define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
|
|
BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
|
|
BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
|
|
BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
|
|
BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
|
|
BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
|
|
BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
|
|
BLOCK_CIPHER_generic(nid,keylen,1,16,ctr,ctr,CTR,flags)
|
|
|
|
static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
|
|
const unsigned char *iv, int enc)
|
|
{
|
|
int ret, mode;
|
|
EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
|
|
|
|
mode = ctx->cipher->flags & EVP_CIPH_MODE;
|
|
if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
|
|
&& !enc)
|
|
# ifdef HWAES_CAPABLE
|
|
if (HWAES_CAPABLE) {
|
|
ret = HWAES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
|
|
dat->block = (block128_f) HWAES_decrypt;
|
|
dat->stream.cbc = NULL;
|
|
# ifdef HWAES_cbc_encrypt
|
|
if (mode == EVP_CIPH_CBC_MODE)
|
|
dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
|
|
# endif
|
|
} else
|
|
# endif
|
|
# ifdef BSAES_CAPABLE
|
|
if (BSAES_CAPABLE && mode == EVP_CIPH_CBC_MODE) {
|
|
ret = AES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
|
|
dat->block = (block128_f) AES_decrypt;
|
|
dat->stream.cbc = (cbc128_f) bsaes_cbc_encrypt;
|
|
} else
|
|
# endif
|
|
# ifdef VPAES_CAPABLE
|
|
if (VPAES_CAPABLE) {
|
|
ret = vpaes_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
|
|
dat->block = (block128_f) vpaes_decrypt;
|
|
dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
|
|
(cbc128_f) vpaes_cbc_encrypt : NULL;
|
|
} else
|
|
# endif
|
|
{
|
|
ret = AES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
|
|
dat->block = (block128_f) AES_decrypt;
|
|
dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
|
|
(cbc128_f) AES_cbc_encrypt : NULL;
|
|
} else
|
|
# ifdef HWAES_CAPABLE
|
|
if (HWAES_CAPABLE) {
|
|
ret = HWAES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
|
|
dat->block = (block128_f) HWAES_encrypt;
|
|
dat->stream.cbc = NULL;
|
|
# ifdef HWAES_cbc_encrypt
|
|
if (mode == EVP_CIPH_CBC_MODE)
|
|
dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
|
|
else
|
|
# endif
|
|
# ifdef HWAES_ctr32_encrypt_blocks
|
|
if (mode == EVP_CIPH_CTR_MODE)
|
|
dat->stream.ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
|
|
else
|
|
# endif
|
|
(void)0; /* terminate potentially open 'else' */
|
|
} else
|
|
# endif
|
|
# ifdef BSAES_CAPABLE
|
|
if (BSAES_CAPABLE && mode == EVP_CIPH_CTR_MODE) {
|
|
ret = AES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
|
|
dat->block = (block128_f) AES_encrypt;
|
|
dat->stream.ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
|
|
} else
|
|
# endif
|
|
# ifdef VPAES_CAPABLE
|
|
if (VPAES_CAPABLE) {
|
|
ret = vpaes_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
|
|
dat->block = (block128_f) vpaes_encrypt;
|
|
dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
|
|
(cbc128_f) vpaes_cbc_encrypt : NULL;
|
|
} else
|
|
# endif
|
|
{
|
|
ret = AES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
|
|
dat->block = (block128_f) AES_encrypt;
|
|
dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
|
|
(cbc128_f) AES_cbc_encrypt : NULL;
|
|
# ifdef AES_CTR_ASM
|
|
if (mode == EVP_CIPH_CTR_MODE)
|
|
dat->stream.ctr = (ctr128_f) AES_ctr32_encrypt;
|
|
# endif
|
|
}
|
|
|
|
if (ret < 0) {
|
|
EVPerr(EVP_F_AES_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int aes_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
|
|
const unsigned char *in, size_t len)
|
|
{
|
|
EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
|
|
|
|
if (dat->stream.cbc)
|
|
(*dat->stream.cbc) (in, out, len, &dat->ks, ctx->iv, ctx->encrypt);
|
|
else if (ctx->encrypt)
|
|
CRYPTO_cbc128_encrypt(in, out, len, &dat->ks, ctx->iv, dat->block);
|
|
else
|
|
CRYPTO_cbc128_decrypt(in, out, len, &dat->ks, ctx->iv, dat->block);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int aes_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
|
|
const unsigned char *in, size_t len)
|
|
{
|
|
size_t bl = ctx->cipher->block_size;
|
|
size_t i;
|
|
EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
|
|
|
|
if (len < bl)
|
|
return 1;
|
|
|
|
for (i = 0, len -= bl; i <= len; i += bl)
|
|
(*dat->block) (in + i, out + i, &dat->ks);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int aes_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
|
|
const unsigned char *in, size_t len)
|
|
{
|
|
EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
|
|
|
|
CRYPTO_ofb128_encrypt(in, out, len, &dat->ks,
|
|
ctx->iv, &ctx->num, dat->block);
|
|
return 1;
|
|
}
|
|
|
|
static int aes_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
|
|
const unsigned char *in, size_t len)
|
|
{
|
|
EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
|
|
|
|
CRYPTO_cfb128_encrypt(in, out, len, &dat->ks,
|
|
ctx->iv, &ctx->num, ctx->encrypt, dat->block);
|
|
return 1;
|
|
}
|
|
|
|
static int aes_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
|
|
const unsigned char *in, size_t len)
|
|
{
|
|
EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
|
|
|
|
CRYPTO_cfb128_8_encrypt(in, out, len, &dat->ks,
|
|
ctx->iv, &ctx->num, ctx->encrypt, dat->block);
|
|
return 1;
|
|
}
|
|
|
|
static int aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
|
|
const unsigned char *in, size_t len)
|
|
{
|
|
EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
|
|
|
|
if (ctx->flags & EVP_CIPH_FLAG_LENGTH_BITS) {
|
|
CRYPTO_cfb128_1_encrypt(in, out, len, &dat->ks,
|
|
ctx->iv, &ctx->num, ctx->encrypt, dat->block);
|
|
return 1;
|
|
}
|
|
|
|
while (len >= MAXBITCHUNK) {
|
|
CRYPTO_cfb128_1_encrypt(in, out, MAXBITCHUNK * 8, &dat->ks,
|
|
ctx->iv, &ctx->num, ctx->encrypt, dat->block);
|
|
len -= MAXBITCHUNK;
|
|
}
|
|
if (len)
|
|
CRYPTO_cfb128_1_encrypt(in, out, len * 8, &dat->ks,
|
|
ctx->iv, &ctx->num, ctx->encrypt, dat->block);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int aes_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
|
|
const unsigned char *in, size_t len)
|
|
{
|
|
unsigned int num = ctx->num;
|
|
EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
|
|
|
|
if (dat->stream.ctr)
|
|
CRYPTO_ctr128_encrypt_ctr32(in, out, len, &dat->ks,
|
|
ctx->iv, ctx->buf, &num, dat->stream.ctr);
|
|
else
|
|
CRYPTO_ctr128_encrypt(in, out, len, &dat->ks,
|
|
ctx->iv, ctx->buf, &num, dat->block);
|
|
ctx->num = (size_t)num;
|
|
return 1;
|
|
}
|
|
|
|
BLOCK_CIPHER_generic_pack(NID_aes, 128, EVP_CIPH_FLAG_FIPS)
|
|
BLOCK_CIPHER_generic_pack(NID_aes, 192, EVP_CIPH_FLAG_FIPS)
|
|
BLOCK_CIPHER_generic_pack(NID_aes, 256, EVP_CIPH_FLAG_FIPS)
|
|
|
|
static int aes_gcm_cleanup(EVP_CIPHER_CTX *c)
|
|
{
|
|
EVP_AES_GCM_CTX *gctx = c->cipher_data;
|
|
OPENSSL_cleanse(&gctx->gcm, sizeof(gctx->gcm));
|
|
if (gctx->iv != c->iv)
|
|
OPENSSL_free(gctx->iv);
|
|
return 1;
|
|
}
|
|
|
|
/* increment counter (64-bit int) by 1 */
|
|
static void ctr64_inc(unsigned char *counter)
|
|
{
|
|
int n = 8;
|
|
unsigned char c;
|
|
|
|
do {
|
|
--n;
|
|
c = counter[n];
|
|
++c;
|
|
counter[n] = c;
|
|
if (c)
|
|
return;
|
|
} while (n);
|
|
}
|
|
|
|
static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
|
|
{
|
|
EVP_AES_GCM_CTX *gctx = c->cipher_data;
|
|
switch (type) {
|
|
case EVP_CTRL_INIT:
|
|
gctx->key_set = 0;
|
|
gctx->iv_set = 0;
|
|
gctx->ivlen = c->cipher->iv_len;
|
|
gctx->iv = c->iv;
|
|
gctx->taglen = -1;
|
|
gctx->iv_gen = 0;
|
|
gctx->tls_aad_len = -1;
|
|
return 1;
|
|
|
|
case EVP_CTRL_GCM_SET_IVLEN:
|
|
if (arg <= 0)
|
|
return 0;
|
|
/* Allocate memory for IV if needed */
|
|
if ((arg > EVP_MAX_IV_LENGTH) && (arg > gctx->ivlen)) {
|
|
if (gctx->iv != c->iv)
|
|
OPENSSL_free(gctx->iv);
|
|
gctx->iv = OPENSSL_malloc(arg);
|
|
if (!gctx->iv)
|
|
return 0;
|
|
}
|
|
gctx->ivlen = arg;
|
|
return 1;
|
|
|
|
case EVP_CTRL_GCM_SET_TAG:
|
|
if (arg <= 0 || arg > 16 || c->encrypt)
|
|
return 0;
|
|
memcpy(c->buf, ptr, arg);
|
|
gctx->taglen = arg;
|
|
return 1;
|
|
|
|
case EVP_CTRL_GCM_GET_TAG:
|
|
if (arg <= 0 || arg > 16 || !c->encrypt || gctx->taglen < 0)
|
|
return 0;
|
|
memcpy(ptr, c->buf, arg);
|
|
return 1;
|
|
|
|
case EVP_CTRL_GCM_SET_IV_FIXED:
|
|
/* Special case: -1 length restores whole IV */
|
|
if (arg == -1) {
|
|
memcpy(gctx->iv, ptr, gctx->ivlen);
|
|
gctx->iv_gen = 1;
|
|
return 1;
|
|
}
|
|
/*
|
|
* Fixed field must be at least 4 bytes and invocation field at least
|
|
* 8.
|
|
*/
|
|
if ((arg < 4) || (gctx->ivlen - arg) < 8)
|
|
return 0;
|
|
if (arg)
|
|
memcpy(gctx->iv, ptr, arg);
|
|
if (c->encrypt && RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
|
|
return 0;
|
|
gctx->iv_gen = 1;
|
|
return 1;
|
|
|
|
case EVP_CTRL_GCM_IV_GEN:
|
|
if (gctx->iv_gen == 0 || gctx->key_set == 0)
|
|
return 0;
|
|
CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
|
|
if (arg <= 0 || arg > gctx->ivlen)
|
|
arg = gctx->ivlen;
|
|
memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
|
|
/*
|
|
* Invocation field will be at least 8 bytes in size and so no need
|
|
* to check wrap around or increment more than last 8 bytes.
|
|
*/
|
|
ctr64_inc(gctx->iv + gctx->ivlen - 8);
|
|
gctx->iv_set = 1;
|
|
return 1;
|
|
|
|
case EVP_CTRL_GCM_SET_IV_INV:
|
|
if (gctx->iv_gen == 0 || gctx->key_set == 0 || c->encrypt)
|
|
return 0;
|
|
memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
|
|
CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
|
|
gctx->iv_set = 1;
|
|
return 1;
|
|
|
|
case EVP_CTRL_AEAD_TLS1_AAD:
|
|
/* Save the AAD for later use */
|
|
if (arg != EVP_AEAD_TLS1_AAD_LEN)
|
|
return 0;
|
|
memcpy(c->buf, ptr, arg);
|
|
gctx->tls_aad_len = arg;
|
|
{
|
|
unsigned int len = c->buf[arg - 2] << 8 | c->buf[arg - 1];
|
|
/* Correct length for explicit IV */
|
|
len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
|
|
/* If decrypting correct for tag too */
|
|
if (!c->encrypt)
|
|
len -= EVP_GCM_TLS_TAG_LEN;
|
|
c->buf[arg - 2] = len >> 8;
|
|
c->buf[arg - 1] = len & 0xff;
|
|
}
|
|
/* Extra padding: tag appended to record */
|
|
return EVP_GCM_TLS_TAG_LEN;
|
|
|
|
case EVP_CTRL_COPY:
|
|
{
|
|
EVP_CIPHER_CTX *out = ptr;
|
|
EVP_AES_GCM_CTX *gctx_out = out->cipher_data;
|
|
if (gctx->gcm.key) {
|
|
if (gctx->gcm.key != &gctx->ks)
|
|
return 0;
|
|
gctx_out->gcm.key = &gctx_out->ks;
|
|
}
|
|
if (gctx->iv == c->iv)
|
|
gctx_out->iv = out->iv;
|
|
else {
|
|
gctx_out->iv = OPENSSL_malloc(gctx->ivlen);
|
|
if (!gctx_out->iv)
|
|
return 0;
|
|
memcpy(gctx_out->iv, gctx->iv, gctx->ivlen);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
default:
|
|
return -1;
|
|
|
|
}
|
|
}
|
|
|
|
static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
|
|
const unsigned char *iv, int enc)
|
|
{
|
|
EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
|
|
if (!iv && !key)
|
|
return 1;
|
|
if (key) {
|
|
do {
|
|
# ifdef HWAES_CAPABLE
|
|
if (HWAES_CAPABLE) {
|
|
HWAES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
|
|
CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
|
|
(block128_f) HWAES_encrypt);
|
|
# ifdef HWAES_ctr32_encrypt_blocks
|
|
gctx->ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
|
|
# else
|
|
gctx->ctr = NULL;
|
|
# endif
|
|
break;
|
|
} else
|
|
# endif
|
|
# ifdef BSAES_CAPABLE
|
|
if (BSAES_CAPABLE) {
|
|
AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
|
|
CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
|
|
(block128_f) AES_encrypt);
|
|
gctx->ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
|
|
break;
|
|
} else
|
|
# endif
|
|
# ifdef VPAES_CAPABLE
|
|
if (VPAES_CAPABLE) {
|
|
vpaes_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
|
|
CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
|
|
(block128_f) vpaes_encrypt);
|
|
gctx->ctr = NULL;
|
|
break;
|
|
} else
|
|
# endif
|
|
(void)0; /* terminate potentially open 'else' */
|
|
|
|
AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
|
|
CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
|
|
(block128_f) AES_encrypt);
|
|
# ifdef AES_CTR_ASM
|
|
gctx->ctr = (ctr128_f) AES_ctr32_encrypt;
|
|
# else
|
|
gctx->ctr = NULL;
|
|
# endif
|
|
} while (0);
|
|
|
|
/*
|
|
* If we have an iv can set it directly, otherwise use saved IV.
|
|
*/
|
|
if (iv == NULL && gctx->iv_set)
|
|
iv = gctx->iv;
|
|
if (iv) {
|
|
CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
|
|
gctx->iv_set = 1;
|
|
}
|
|
gctx->key_set = 1;
|
|
} else {
|
|
/* If key set use IV, otherwise copy */
|
|
if (gctx->key_set)
|
|
CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
|
|
else
|
|
memcpy(gctx->iv, iv, gctx->ivlen);
|
|
gctx->iv_set = 1;
|
|
gctx->iv_gen = 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* Handle TLS GCM packet format. This consists of the last portion of the IV
|
|
* followed by the payload and finally the tag. On encrypt generate IV,
|
|
* encrypt payload and write the tag. On verify retrieve IV, decrypt payload
|
|
* and verify tag.
|
|
*/
|
|
|
|
static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
|
|
const unsigned char *in, size_t len)
|
|
{
|
|
EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
|
|
int rv = -1;
|
|
/* Encrypt/decrypt must be performed in place */
|
|
if (out != in
|
|
|| len < (EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN))
|
|
return -1;
|
|
/*
|
|
* Set IV from start of buffer or generate IV and write to start of
|
|
* buffer.
|
|
*/
|
|
if (EVP_CIPHER_CTX_ctrl(ctx, ctx->encrypt ?
|
|
EVP_CTRL_GCM_IV_GEN : EVP_CTRL_GCM_SET_IV_INV,
|
|
EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
|
|
goto err;
|
|
/* Use saved AAD */
|
|
if (CRYPTO_gcm128_aad(&gctx->gcm, ctx->buf, gctx->tls_aad_len))
|
|
goto err;
|
|
/* Fix buffer and length to point to payload */
|
|
in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
|
|
out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
|
|
len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
|
|
if (ctx->encrypt) {
|
|
/* Encrypt payload */
|
|
if (gctx->ctr) {
|
|
size_t bulk = 0;
|
|
# if defined(AES_GCM_ASM)
|
|
if (len >= 32 && AES_GCM_ASM(gctx)) {
|
|
if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
|
|
return -1;
|
|
|
|
bulk = AES_gcm_encrypt(in, out, len,
|
|
gctx->gcm.key,
|
|
gctx->gcm.Yi.c, gctx->gcm.Xi.u);
|
|
gctx->gcm.len.u[1] += bulk;
|
|
}
|
|
# endif
|
|
if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
|
|
in + bulk,
|
|
out + bulk,
|
|
len - bulk, gctx->ctr))
|
|
goto err;
|
|
} else {
|
|
size_t bulk = 0;
|
|
# if defined(AES_GCM_ASM2)
|
|
if (len >= 32 && AES_GCM_ASM2(gctx)) {
|
|
if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
|
|
return -1;
|
|
|
|
bulk = AES_gcm_encrypt(in, out, len,
|
|
gctx->gcm.key,
|
|
gctx->gcm.Yi.c, gctx->gcm.Xi.u);
|
|
gctx->gcm.len.u[1] += bulk;
|
|
}
|
|
# endif
|
|
if (CRYPTO_gcm128_encrypt(&gctx->gcm,
|
|
in + bulk, out + bulk, len - bulk))
|
|
goto err;
|
|
}
|
|
out += len;
|
|
/* Finally write tag */
|
|
CRYPTO_gcm128_tag(&gctx->gcm, out, EVP_GCM_TLS_TAG_LEN);
|
|
rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
|
|
} else {
|
|
/* Decrypt */
|
|
if (gctx->ctr) {
|
|
size_t bulk = 0;
|
|
# if defined(AES_GCM_ASM)
|
|
if (len >= 16 && AES_GCM_ASM(gctx)) {
|
|
if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
|
|
return -1;
|
|
|
|
bulk = AES_gcm_decrypt(in, out, len,
|
|
gctx->gcm.key,
|
|
gctx->gcm.Yi.c, gctx->gcm.Xi.u);
|
|
gctx->gcm.len.u[1] += bulk;
|
|
}
|
|
# endif
|
|
if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
|
|
in + bulk,
|
|
out + bulk,
|
|
len - bulk, gctx->ctr))
|
|
goto err;
|
|
} else {
|
|
size_t bulk = 0;
|
|
# if defined(AES_GCM_ASM2)
|
|
if (len >= 16 && AES_GCM_ASM2(gctx)) {
|
|
if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
|
|
return -1;
|
|
|
|
bulk = AES_gcm_decrypt(in, out, len,
|
|
gctx->gcm.key,
|
|
gctx->gcm.Yi.c, gctx->gcm.Xi.u);
|
|
gctx->gcm.len.u[1] += bulk;
|
|
}
|
|
# endif
|
|
if (CRYPTO_gcm128_decrypt(&gctx->gcm,
|
|
in + bulk, out + bulk, len - bulk))
|
|
goto err;
|
|
}
|
|
/* Retrieve tag */
|
|
CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, EVP_GCM_TLS_TAG_LEN);
|
|
/* If tag mismatch wipe buffer */
|
|
if (CRYPTO_memcmp(ctx->buf, in + len, EVP_GCM_TLS_TAG_LEN)) {
|
|
OPENSSL_cleanse(out, len);
|
|
goto err;
|
|
}
|
|
rv = len;
|
|
}
|
|
|
|
err:
|
|
gctx->iv_set = 0;
|
|
gctx->tls_aad_len = -1;
|
|
return rv;
|
|
}
|
|
|
|
static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
|
|
const unsigned char *in, size_t len)
|
|
{
|
|
EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
|
|
/* If not set up, return error */
|
|
if (!gctx->key_set)
|
|
return -1;
|
|
|
|
if (gctx->tls_aad_len >= 0)
|
|
return aes_gcm_tls_cipher(ctx, out, in, len);
|
|
|
|
if (!gctx->iv_set)
|
|
return -1;
|
|
if (in) {
|
|
if (out == NULL) {
|
|
if (CRYPTO_gcm128_aad(&gctx->gcm, in, len))
|
|
return -1;
|
|
} else if (ctx->encrypt) {
|
|
if (gctx->ctr) {
|
|
size_t bulk = 0;
|
|
# if defined(AES_GCM_ASM)
|
|
if (len >= 32 && AES_GCM_ASM(gctx)) {
|
|
size_t res = (16 - gctx->gcm.mres) % 16;
|
|
|
|
if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
|
|
return -1;
|
|
|
|
bulk = AES_gcm_encrypt(in + res,
|
|
out + res, len - res,
|
|
gctx->gcm.key, gctx->gcm.Yi.c,
|
|
gctx->gcm.Xi.u);
|
|
gctx->gcm.len.u[1] += bulk;
|
|
bulk += res;
|
|
}
|
|
# endif
|
|
if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
|
|
in + bulk,
|
|
out + bulk,
|
|
len - bulk, gctx->ctr))
|
|
return -1;
|
|
} else {
|
|
size_t bulk = 0;
|
|
# if defined(AES_GCM_ASM2)
|
|
if (len >= 32 && AES_GCM_ASM2(gctx)) {
|
|
size_t res = (16 - gctx->gcm.mres) % 16;
|
|
|
|
if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
|
|
return -1;
|
|
|
|
bulk = AES_gcm_encrypt(in + res,
|
|
out + res, len - res,
|
|
gctx->gcm.key, gctx->gcm.Yi.c,
|
|
gctx->gcm.Xi.u);
|
|
gctx->gcm.len.u[1] += bulk;
|
|
bulk += res;
|
|
}
|
|
# endif
|
|
if (CRYPTO_gcm128_encrypt(&gctx->gcm,
|
|
in + bulk, out + bulk, len - bulk))
|
|
return -1;
|
|
}
|
|
} else {
|
|
if (gctx->ctr) {
|
|
size_t bulk = 0;
|
|
# if defined(AES_GCM_ASM)
|
|
if (len >= 16 && AES_GCM_ASM(gctx)) {
|
|
size_t res = (16 - gctx->gcm.mres) % 16;
|
|
|
|
if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
|
|
return -1;
|
|
|
|
bulk = AES_gcm_decrypt(in + res,
|
|
out + res, len - res,
|
|
gctx->gcm.key,
|
|
gctx->gcm.Yi.c, gctx->gcm.Xi.u);
|
|
gctx->gcm.len.u[1] += bulk;
|
|
bulk += res;
|
|
}
|
|
# endif
|
|
if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
|
|
in + bulk,
|
|
out + bulk,
|
|
len - bulk, gctx->ctr))
|
|
return -1;
|
|
} else {
|
|
size_t bulk = 0;
|
|
# if defined(AES_GCM_ASM2)
|
|
if (len >= 16 && AES_GCM_ASM2(gctx)) {
|
|
size_t res = (16 - gctx->gcm.mres) % 16;
|
|
|
|
if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
|
|
return -1;
|
|
|
|
bulk = AES_gcm_decrypt(in + res,
|
|
out + res, len - res,
|
|
gctx->gcm.key,
|
|
gctx->gcm.Yi.c, gctx->gcm.Xi.u);
|
|
gctx->gcm.len.u[1] += bulk;
|
|
bulk += res;
|
|
}
|
|
# endif
|
|
if (CRYPTO_gcm128_decrypt(&gctx->gcm,
|
|
in + bulk, out + bulk, len - bulk))
|
|
return -1;
|
|
}
|
|
}
|
|
return len;
|
|
} else {
|
|
if (!ctx->encrypt) {
|
|
if (gctx->taglen < 0)
|
|
return -1;
|
|
if (CRYPTO_gcm128_finish(&gctx->gcm, ctx->buf, gctx->taglen) != 0)
|
|
return -1;
|
|
gctx->iv_set = 0;
|
|
return 0;
|
|
}
|
|
CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, 16);
|
|
gctx->taglen = 16;
|
|
/* Don't reuse the IV */
|
|
gctx->iv_set = 0;
|
|
return 0;
|
|
}
|
|
|
|
}
|
|
|
|
# define CUSTOM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
|
|
| EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
|
|
| EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
|
|
| EVP_CIPH_CUSTOM_COPY)
|
|
|
|
BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, gcm, GCM,
|
|
EVP_CIPH_FLAG_FIPS | EVP_CIPH_FLAG_AEAD_CIPHER |
|
|
CUSTOM_FLAGS)
|
|
BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, gcm, GCM,
|
|
EVP_CIPH_FLAG_FIPS | EVP_CIPH_FLAG_AEAD_CIPHER |
|
|
CUSTOM_FLAGS)
|
|
BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, gcm, GCM,
|
|
EVP_CIPH_FLAG_FIPS | EVP_CIPH_FLAG_AEAD_CIPHER |
|
|
CUSTOM_FLAGS)
|
|
|
|
static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
|
|
{
|
|
EVP_AES_XTS_CTX *xctx = c->cipher_data;
|
|
if (type == EVP_CTRL_COPY) {
|
|
EVP_CIPHER_CTX *out = ptr;
|
|
EVP_AES_XTS_CTX *xctx_out = out->cipher_data;
|
|
if (xctx->xts.key1) {
|
|
if (xctx->xts.key1 != &xctx->ks1)
|
|
return 0;
|
|
xctx_out->xts.key1 = &xctx_out->ks1;
|
|
}
|
|
if (xctx->xts.key2) {
|
|
if (xctx->xts.key2 != &xctx->ks2)
|
|
return 0;
|
|
xctx_out->xts.key2 = &xctx_out->ks2;
|
|
}
|
|
return 1;
|
|
} else if (type != EVP_CTRL_INIT)
|
|
return -1;
|
|
/* key1 and key2 are used as an indicator both key and IV are set */
|
|
xctx->xts.key1 = NULL;
|
|
xctx->xts.key2 = NULL;
|
|
return 1;
|
|
}
|
|
|
|
static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
|
|
const unsigned char *iv, int enc)
|
|
{
|
|
EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
|
|
if (!iv && !key)
|
|
return 1;
|
|
|
|
if (key)
|
|
do {
|
|
# ifdef AES_XTS_ASM
|
|
xctx->stream = enc ? AES_xts_encrypt : AES_xts_decrypt;
|
|
# else
|
|
xctx->stream = NULL;
|
|
# endif
|
|
/* key_len is two AES keys */
|
|
# ifdef HWAES_CAPABLE
|
|
if (HWAES_CAPABLE) {
|
|
if (enc) {
|
|
HWAES_set_encrypt_key(key, ctx->key_len * 4,
|
|
&xctx->ks1.ks);
|
|
xctx->xts.block1 = (block128_f) HWAES_encrypt;
|
|
} else {
|
|
HWAES_set_decrypt_key(key, ctx->key_len * 4,
|
|
&xctx->ks1.ks);
|
|
xctx->xts.block1 = (block128_f) HWAES_decrypt;
|
|
}
|
|
|
|
HWAES_set_encrypt_key(key + ctx->key_len / 2,
|
|
ctx->key_len * 4, &xctx->ks2.ks);
|
|
xctx->xts.block2 = (block128_f) HWAES_encrypt;
|
|
|
|
xctx->xts.key1 = &xctx->ks1;
|
|
break;
|
|
} else
|
|
# endif
|
|
# ifdef BSAES_CAPABLE
|
|
if (BSAES_CAPABLE)
|
|
xctx->stream = enc ? bsaes_xts_encrypt : bsaes_xts_decrypt;
|
|
else
|
|
# endif
|
|
# ifdef VPAES_CAPABLE
|
|
if (VPAES_CAPABLE) {
|
|
if (enc) {
|
|
vpaes_set_encrypt_key(key, ctx->key_len * 4,
|
|
&xctx->ks1.ks);
|
|
xctx->xts.block1 = (block128_f) vpaes_encrypt;
|
|
} else {
|
|
vpaes_set_decrypt_key(key, ctx->key_len * 4,
|
|
&xctx->ks1.ks);
|
|
xctx->xts.block1 = (block128_f) vpaes_decrypt;
|
|
}
|
|
|
|
vpaes_set_encrypt_key(key + ctx->key_len / 2,
|
|
ctx->key_len * 4, &xctx->ks2.ks);
|
|
xctx->xts.block2 = (block128_f) vpaes_encrypt;
|
|
|
|
xctx->xts.key1 = &xctx->ks1;
|
|
break;
|
|
} else
|
|
# endif
|
|
(void)0; /* terminate potentially open 'else' */
|
|
|
|
if (enc) {
|
|
AES_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
|
|
xctx->xts.block1 = (block128_f) AES_encrypt;
|
|
} else {
|
|
AES_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
|
|
xctx->xts.block1 = (block128_f) AES_decrypt;
|
|
}
|
|
|
|
AES_set_encrypt_key(key + ctx->key_len / 2,
|
|
ctx->key_len * 4, &xctx->ks2.ks);
|
|
xctx->xts.block2 = (block128_f) AES_encrypt;
|
|
|
|
xctx->xts.key1 = &xctx->ks1;
|
|
} while (0);
|
|
|
|
if (iv) {
|
|
xctx->xts.key2 = &xctx->ks2;
|
|
memcpy(ctx->iv, iv, 16);
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
|
|
const unsigned char *in, size_t len)
|
|
{
|
|
EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
|
|
if (!xctx->xts.key1 || !xctx->xts.key2)
|
|
return 0;
|
|
if (!out || !in || len < AES_BLOCK_SIZE)
|
|
return 0;
|
|
if (xctx->stream)
|
|
(*xctx->stream) (in, out, len,
|
|
xctx->xts.key1, xctx->xts.key2, ctx->iv);
|
|
else if (CRYPTO_xts128_encrypt(&xctx->xts, ctx->iv, in, out, len,
|
|
ctx->encrypt))
|
|
return 0;
|
|
return 1;
|
|
}
|
|
|
|
# define aes_xts_cleanup NULL
|
|
|
|
# define XTS_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CUSTOM_IV \
|
|
| EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
|
|
| EVP_CIPH_CUSTOM_COPY)
|
|
|
|
BLOCK_CIPHER_custom(NID_aes, 128, 1, 16, xts, XTS,
|
|
EVP_CIPH_FLAG_FIPS | XTS_FLAGS)
|
|
BLOCK_CIPHER_custom(NID_aes, 256, 1, 16, xts, XTS,
|
|
EVP_CIPH_FLAG_FIPS | XTS_FLAGS)
|
|
|
|
static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
|
|
{
|
|
EVP_AES_CCM_CTX *cctx = c->cipher_data;
|
|
switch (type) {
|
|
case EVP_CTRL_INIT:
|
|
cctx->key_set = 0;
|
|
cctx->iv_set = 0;
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|
cctx->L = 8;
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|
cctx->M = 12;
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|
cctx->tag_set = 0;
|
|
cctx->len_set = 0;
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|
return 1;
|
|
|
|
case EVP_CTRL_CCM_SET_IVLEN:
|
|
arg = 15 - arg;
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|
case EVP_CTRL_CCM_SET_L:
|
|
if (arg < 2 || arg > 8)
|
|
return 0;
|
|
cctx->L = arg;
|
|
return 1;
|
|
|
|
case EVP_CTRL_CCM_SET_TAG:
|
|
if ((arg & 1) || arg < 4 || arg > 16)
|
|
return 0;
|
|
if (c->encrypt && ptr)
|
|
return 0;
|
|
if (ptr) {
|
|
cctx->tag_set = 1;
|
|
memcpy(c->buf, ptr, arg);
|
|
}
|
|
cctx->M = arg;
|
|
return 1;
|
|
|
|
case EVP_CTRL_CCM_GET_TAG:
|
|
if (!c->encrypt || !cctx->tag_set)
|
|
return 0;
|
|
if (!CRYPTO_ccm128_tag(&cctx->ccm, ptr, (size_t)arg))
|
|
return 0;
|
|
cctx->tag_set = 0;
|
|
cctx->iv_set = 0;
|
|
cctx->len_set = 0;
|
|
return 1;
|
|
|
|
case EVP_CTRL_COPY:
|
|
{
|
|
EVP_CIPHER_CTX *out = ptr;
|
|
EVP_AES_CCM_CTX *cctx_out = out->cipher_data;
|
|
if (cctx->ccm.key) {
|
|
if (cctx->ccm.key != &cctx->ks)
|
|
return 0;
|
|
cctx_out->ccm.key = &cctx_out->ks;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
default:
|
|
return -1;
|
|
|
|
}
|
|
}
|
|
|
|
static int aes_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
|
|
const unsigned char *iv, int enc)
|
|
{
|
|
EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
|
|
if (!iv && !key)
|
|
return 1;
|
|
if (key)
|
|
do {
|
|
# ifdef HWAES_CAPABLE
|
|
if (HWAES_CAPABLE) {
|
|
HWAES_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
|
|
|
|
CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
|
|
&cctx->ks, (block128_f) HWAES_encrypt);
|
|
cctx->str = NULL;
|
|
cctx->key_set = 1;
|
|
break;
|
|
} else
|
|
# endif
|
|
# ifdef VPAES_CAPABLE
|
|
if (VPAES_CAPABLE) {
|
|
vpaes_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
|
|
CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
|
|
&cctx->ks, (block128_f) vpaes_encrypt);
|
|
cctx->str = NULL;
|
|
cctx->key_set = 1;
|
|
break;
|
|
}
|
|
# endif
|
|
AES_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
|
|
CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
|
|
&cctx->ks, (block128_f) AES_encrypt);
|
|
cctx->str = NULL;
|
|
cctx->key_set = 1;
|
|
} while (0);
|
|
if (iv) {
|
|
memcpy(ctx->iv, iv, 15 - cctx->L);
|
|
cctx->iv_set = 1;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
|
|
const unsigned char *in, size_t len)
|
|
{
|
|
EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
|
|
CCM128_CONTEXT *ccm = &cctx->ccm;
|
|
/* If not set up, return error */
|
|
if (!cctx->iv_set && !cctx->key_set)
|
|
return -1;
|
|
if (!ctx->encrypt && !cctx->tag_set)
|
|
return -1;
|
|
if (!out) {
|
|
if (!in) {
|
|
if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len))
|
|
return -1;
|
|
cctx->len_set = 1;
|
|
return len;
|
|
}
|
|
/* If have AAD need message length */
|
|
if (!cctx->len_set && len)
|
|
return -1;
|
|
CRYPTO_ccm128_aad(ccm, in, len);
|
|
return len;
|
|
}
|
|
/* EVP_*Final() doesn't return any data */
|
|
if (!in)
|
|
return 0;
|
|
/* If not set length yet do it */
|
|
if (!cctx->len_set) {
|
|
if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len))
|
|
return -1;
|
|
cctx->len_set = 1;
|
|
}
|
|
if (ctx->encrypt) {
|
|
if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
|
|
cctx->str) :
|
|
CRYPTO_ccm128_encrypt(ccm, in, out, len))
|
|
return -1;
|
|
cctx->tag_set = 1;
|
|
return len;
|
|
} else {
|
|
int rv = -1;
|
|
if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
|
|
cctx->str) :
|
|
!CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
|
|
unsigned char tag[16];
|
|
if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
|
|
if (!CRYPTO_memcmp(tag, ctx->buf, cctx->M))
|
|
rv = len;
|
|
}
|
|
}
|
|
if (rv == -1)
|
|
OPENSSL_cleanse(out, len);
|
|
cctx->iv_set = 0;
|
|
cctx->tag_set = 0;
|
|
cctx->len_set = 0;
|
|
return rv;
|
|
}
|
|
|
|
}
|
|
|
|
# define aes_ccm_cleanup NULL
|
|
|
|
BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, ccm, CCM,
|
|
EVP_CIPH_FLAG_FIPS | CUSTOM_FLAGS)
|
|
BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, ccm, CCM,
|
|
EVP_CIPH_FLAG_FIPS | CUSTOM_FLAGS)
|
|
BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, ccm, CCM,
|
|
EVP_CIPH_FLAG_FIPS | CUSTOM_FLAGS)
|
|
#endif
|
|
typedef struct {
|
|
union {
|
|
double align;
|
|
AES_KEY ks;
|
|
} ks;
|
|
/* Indicates if IV has been set */
|
|
unsigned char *iv;
|
|
} EVP_AES_WRAP_CTX;
|
|
|
|
static int aes_wrap_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
|
|
const unsigned char *iv, int enc)
|
|
{
|
|
EVP_AES_WRAP_CTX *wctx = ctx->cipher_data;
|
|
if (!iv && !key)
|
|
return 1;
|
|
if (key) {
|
|
if (ctx->encrypt)
|
|
AES_set_encrypt_key(key, ctx->key_len * 8, &wctx->ks.ks);
|
|
else
|
|
AES_set_decrypt_key(key, ctx->key_len * 8, &wctx->ks.ks);
|
|
if (!iv)
|
|
wctx->iv = NULL;
|
|
}
|
|
if (iv) {
|
|
memcpy(ctx->iv, iv, 8);
|
|
wctx->iv = ctx->iv;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int aes_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
|
|
const unsigned char *in, size_t inlen)
|
|
{
|
|
EVP_AES_WRAP_CTX *wctx = ctx->cipher_data;
|
|
size_t rv;
|
|
if (!in)
|
|
return 0;
|
|
if (inlen % 8)
|
|
return -1;
|
|
if (ctx->encrypt && inlen < 8)
|
|
return -1;
|
|
if (!ctx->encrypt && inlen < 16)
|
|
return -1;
|
|
if (!out) {
|
|
if (ctx->encrypt)
|
|
return inlen + 8;
|
|
else
|
|
return inlen - 8;
|
|
}
|
|
if (ctx->encrypt)
|
|
rv = CRYPTO_128_wrap(&wctx->ks.ks, wctx->iv, out, in, inlen,
|
|
(block128_f) AES_encrypt);
|
|
else
|
|
rv = CRYPTO_128_unwrap(&wctx->ks.ks, wctx->iv, out, in, inlen,
|
|
(block128_f) AES_decrypt);
|
|
return rv ? (int)rv : -1;
|
|
}
|
|
|
|
#define WRAP_FLAGS (EVP_CIPH_WRAP_MODE \
|
|
| EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
|
|
| EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_FLAG_DEFAULT_ASN1)
|
|
|
|
static const EVP_CIPHER aes_128_wrap = {
|
|
NID_id_aes128_wrap,
|
|
8, 16, 8, WRAP_FLAGS,
|
|
aes_wrap_init_key, aes_wrap_cipher,
|
|
NULL,
|
|
sizeof(EVP_AES_WRAP_CTX),
|
|
NULL, NULL, NULL, NULL
|
|
};
|
|
|
|
const EVP_CIPHER *EVP_aes_128_wrap(void)
|
|
{
|
|
return &aes_128_wrap;
|
|
}
|
|
|
|
static const EVP_CIPHER aes_192_wrap = {
|
|
NID_id_aes192_wrap,
|
|
8, 24, 8, WRAP_FLAGS,
|
|
aes_wrap_init_key, aes_wrap_cipher,
|
|
NULL,
|
|
sizeof(EVP_AES_WRAP_CTX),
|
|
NULL, NULL, NULL, NULL
|
|
};
|
|
|
|
const EVP_CIPHER *EVP_aes_192_wrap(void)
|
|
{
|
|
return &aes_192_wrap;
|
|
}
|
|
|
|
static const EVP_CIPHER aes_256_wrap = {
|
|
NID_id_aes256_wrap,
|
|
8, 32, 8, WRAP_FLAGS,
|
|
aes_wrap_init_key, aes_wrap_cipher,
|
|
NULL,
|
|
sizeof(EVP_AES_WRAP_CTX),
|
|
NULL, NULL, NULL, NULL
|
|
};
|
|
|
|
const EVP_CIPHER *EVP_aes_256_wrap(void)
|
|
{
|
|
return &aes_256_wrap;
|
|
}
|