diff --git a/core/math/crypto_core.cpp b/core/math/crypto_core.cpp
index d7ba54e469e..51c2e3c9e5e 100644
--- a/core/math/crypto_core.cpp
+++ b/core/math/crypto_core.cpp
@@ -52,7 +52,7 @@ Error CryptoCore::MD5Context::start() {
 	return ret ? FAILED : OK;
 }
 
-Error CryptoCore::MD5Context::update(uint8_t *p_src, size_t p_len) {
+Error CryptoCore::MD5Context::update(const uint8_t *p_src, size_t p_len) {
 	int ret = mbedtls_md5_update_ret((mbedtls_md5_context *)ctx, p_src, p_len);
 	return ret ? FAILED : OK;
 }
@@ -62,6 +62,32 @@ Error CryptoCore::MD5Context::finish(unsigned char r_hash[16]) {
 	return ret ? FAILED : OK;
 }
 
+// SHA1
+CryptoCore::SHA1Context::SHA1Context() {
+	ctx = memalloc(sizeof(mbedtls_sha1_context));
+	mbedtls_sha1_init((mbedtls_sha1_context *)ctx);
+}
+
+CryptoCore::SHA1Context::~SHA1Context() {
+	mbedtls_sha1_free((mbedtls_sha1_context *)ctx);
+	memfree((mbedtls_sha1_context *)ctx);
+}
+
+Error CryptoCore::SHA1Context::start() {
+	int ret = mbedtls_sha1_starts_ret((mbedtls_sha1_context *)ctx);
+	return ret ? FAILED : OK;
+}
+
+Error CryptoCore::SHA1Context::update(const uint8_t *p_src, size_t p_len) {
+	int ret = mbedtls_sha1_update_ret((mbedtls_sha1_context *)ctx, p_src, p_len);
+	return ret ? FAILED : OK;
+}
+
+Error CryptoCore::SHA1Context::finish(unsigned char r_hash[20]) {
+	int ret = mbedtls_sha1_finish_ret((mbedtls_sha1_context *)ctx, r_hash);
+	return ret ? FAILED : OK;
+}
+
 // SHA256
 CryptoCore::SHA256Context::SHA256Context() {
 	ctx = memalloc(sizeof(mbedtls_sha256_context));
@@ -78,12 +104,12 @@ Error CryptoCore::SHA256Context::start() {
 	return ret ? FAILED : OK;
 }
 
-Error CryptoCore::SHA256Context::update(uint8_t *p_src, size_t p_len) {
+Error CryptoCore::SHA256Context::update(const uint8_t *p_src, size_t p_len) {
 	int ret = mbedtls_sha256_update_ret((mbedtls_sha256_context *)ctx, p_src, p_len);
 	return ret ? FAILED : OK;
 }
 
-Error CryptoCore::SHA256Context::finish(unsigned char r_hash[16]) {
+Error CryptoCore::SHA256Context::finish(unsigned char r_hash[32]) {
 	int ret = mbedtls_sha256_finish_ret((mbedtls_sha256_context *)ctx, r_hash);
 	return ret ? FAILED : OK;
 }
diff --git a/core/math/crypto_core.h b/core/math/crypto_core.h
index e28cb5a7927..c859d612d4a 100644
--- a/core/math/crypto_core.h
+++ b/core/math/crypto_core.h
@@ -46,10 +46,24 @@ public:
 		~MD5Context();
 
 		Error start();
-		Error update(uint8_t *p_src, size_t p_len);
+		Error update(const uint8_t *p_src, size_t p_len);
 		Error finish(unsigned char r_hash[16]);
 	};
 
+	class SHA1Context {
+
+	private:
+		void *ctx; // To include, or not to include...
+
+	public:
+		SHA1Context();
+		~SHA1Context();
+
+		Error start();
+		Error update(const uint8_t *p_src, size_t p_len);
+		Error finish(unsigned char r_hash[20]);
+	};
+
 	class SHA256Context {
 
 	private:
@@ -60,8 +74,8 @@ public:
 		~SHA256Context();
 
 		Error start();
-		Error update(uint8_t *p_src, size_t p_len);
-		Error finish(unsigned char r_hash[16]);
+		Error update(const uint8_t *p_src, size_t p_len);
+		Error finish(unsigned char r_hash[32]);
 	};
 
 	class AESContext {