| /* wrappers for the EVP API of OpenSSL 3+ */ |
| #ifndef SHA256_OPENSSL_H |
| #define SHA256_OPENSSL_H |
| #include <openssl/evp.h> |
| |
| struct openssl_SHA256_CTX { |
| EVP_MD_CTX *ectx; |
| }; |
| |
| typedef struct openssl_SHA256_CTX openssl_SHA256_CTX; |
| |
| static inline void openssl_SHA256_Init(struct openssl_SHA256_CTX *ctx) |
| { |
| const EVP_MD *type = EVP_sha256(); |
| |
| ctx->ectx = EVP_MD_CTX_new(); |
| if (!ctx->ectx) |
| die("EVP_MD_CTX_new: out of memory"); |
| |
| EVP_DigestInit_ex(ctx->ectx, type, NULL); |
| } |
| |
| static inline void openssl_SHA256_Update(struct openssl_SHA256_CTX *ctx, |
| const void *data, |
| size_t len) |
| { |
| EVP_DigestUpdate(ctx->ectx, data, len); |
| } |
| |
| static inline void openssl_SHA256_Final(unsigned char *digest, |
| struct openssl_SHA256_CTX *ctx) |
| { |
| EVP_DigestFinal_ex(ctx->ectx, digest, NULL); |
| EVP_MD_CTX_free(ctx->ectx); |
| } |
| |
| static inline void openssl_SHA256_Clone(struct openssl_SHA256_CTX *dst, |
| const struct openssl_SHA256_CTX *src) |
| { |
| EVP_MD_CTX_copy_ex(dst->ectx, src->ectx); |
| } |
| |
| #define platform_SHA256_CTX openssl_SHA256_CTX |
| #define platform_SHA256_Init openssl_SHA256_Init |
| #define platform_SHA256_Clone openssl_SHA256_Clone |
| #define platform_SHA256_Update openssl_SHA256_Update |
| #define platform_SHA256_Final openssl_SHA256_Final |
| |
| #endif /* SHA256_OPENSSL_H */ |