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/* wrappers for the EVP API of OpenSSL 3+ */
#ifndef SHA1_OPENSSL_H
#define SHA1_OPENSSL_H
#include <openssl/evp.h>
struct openssl_SHA1_CTX {
EVP_MD_CTX *ectx;
};
typedef struct openssl_SHA1_CTX openssl_SHA1_CTX;
static inline void openssl_SHA1_Init(struct openssl_SHA1_CTX *ctx)
{
const EVP_MD *type = EVP_sha1();
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_SHA1_Update(struct openssl_SHA1_CTX *ctx,
const void *data,
size_t len)
{
EVP_DigestUpdate(ctx->ectx, data, len);
}
static inline void openssl_SHA1_Final(unsigned char *digest,
struct openssl_SHA1_CTX *ctx)
{
EVP_DigestFinal_ex(ctx->ectx, digest, NULL);
EVP_MD_CTX_free(ctx->ectx);
}
static inline void openssl_SHA1_Clone(struct openssl_SHA1_CTX *dst,
const struct openssl_SHA1_CTX *src)
{
EVP_MD_CTX_copy_ex(dst->ectx, src->ectx);
}
#define platform_SHA_CTX openssl_SHA1_CTX
#define platform_SHA1_Init openssl_SHA1_Init
#define platform_SHA1_Clone openssl_SHA1_Clone
#define platform_SHA1_Update openssl_SHA1_Update
#define platform_SHA1_Final openssl_SHA1_Final
#endif /* SHA1_OPENSSL_H */
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