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1/* wrappers for the EVP API of OpenSSL 3+ */
2#ifndef SHA1_OPENSSL_H
3#define SHA1_OPENSSL_H
4#include <openssl/evp.h>
5
6struct openssl_SHA1_CTX {
7 EVP_MD_CTX *ectx;
8};
9
10typedef struct openssl_SHA1_CTX openssl_SHA1_CTX;
11
12static inline void openssl_SHA1_Init(struct openssl_SHA1_CTX *ctx)
13{
14 const EVP_MD *type = EVP_sha1();
15
16 ctx->ectx = EVP_MD_CTX_new();
17 if (!ctx->ectx)
18 die("EVP_MD_CTX_new: out of memory");
19
20 EVP_DigestInit_ex(ctx->ectx, type, NULL);
21}
22
23static inline void openssl_SHA1_Update(struct openssl_SHA1_CTX *ctx,
24 const void *data,
25 size_t len)
26{
27 EVP_DigestUpdate(ctx->ectx, data, len);
28}
29
30static inline void openssl_SHA1_Final(unsigned char *digest,
31 struct openssl_SHA1_CTX *ctx)
32{
33 EVP_DigestFinal_ex(ctx->ectx, digest, NULL);
34 EVP_MD_CTX_free(ctx->ectx);
35}
36
37static inline void openssl_SHA1_Clone(struct openssl_SHA1_CTX *dst,
38 const struct openssl_SHA1_CTX *src)
39{
40 EVP_MD_CTX_copy_ex(dst->ectx, src->ectx);
41}
42
43#ifndef platform_SHA_CTX
44#define platform_SHA_CTX openssl_SHA1_CTX
45#define platform_SHA1_Init openssl_SHA1_Init
46#define platform_SHA1_Clone openssl_SHA1_Clone
47#define platform_SHA1_Update openssl_SHA1_Update
48#define platform_SHA1_Final openssl_SHA1_Final
49#endif
50
51#endif /* SHA1_OPENSSL_H */