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Diffstat (limited to '')
| -rw-r--r-- | src/hash.h | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/src/hash.h b/src/hash.h new file mode 100644 index 0000000..5bd47ac --- /dev/null +++ b/src/hash.h @@ -0,0 +1,83 @@ +/* + * Exim - an Internet mail transport agent + * + * Copyright (C) 1995 - 2018 Exim maintainers + * + * Hash interface functions + */ + +#include "exim.h" + +#if !defined(HASH_H) /* entire file */ +#define HASH_H + +#include "sha_ver.h" + +#ifdef SHA_OPENSSL +# include <openssl/sha.h> +#elif defined SHA_GNUTLS +# include <gnutls/crypto.h> +#elif defined(SHA_GCRYPT) +# include <gcrypt.h> +#elif defined(SHA_POLARSSL) +# include "pdkim/pdkim.h" /*XXX ugly */ +# include "pdkim/polarssl/sha1.h" +# include "pdkim/polarssl/sha2.h" +#endif + + +/* Hash context for the exim_sha_* routines */ + +typedef enum hashmethod { + HASH_BADTYPE, + HASH_NULL, + HASH_SHA1, + + HASH_SHA2_256, + HASH_SHA2_384, + HASH_SHA2_512, + + HASH_SHA3_224, + HASH_SHA3_256, + HASH_SHA3_384, + HASH_SHA3_512, +} hashmethod; + +typedef struct { + hashmethod method; + int hashlen; + +#ifdef SHA_OPENSSL + union { + SHA_CTX sha1; /* SHA1 block */ + SHA256_CTX sha2_256; /* SHA256 or 224 block */ + SHA512_CTX sha2_512; /* SHA512 or 384 block */ +#ifdef EXIM_HAVE_SHA3 + EVP_MD_CTX * mctx; /* SHA3 block */ +#endif + } u; + +#elif defined(SHA_GNUTLS) + gnutls_hash_hd_t sha; /* Either SHA1 or SHA256 block */ + +#elif defined(SHA_GCRYPT) + gcry_md_hd_t sha; /* Either SHA1 or SHA256 block */ + +#elif defined(SHA_POLARSSL) + union { + sha1_context sha1; /* SHA1 block */ + sha2_context sha2; /* SHA256 block */ + } u; + +#elif defined(SHA_NATIVE) + sha1 sha1; +#endif + +} hctx; + +extern BOOL exim_sha_init(hctx *, hashmethod); +extern void exim_sha_update(hctx *, const uschar *a, int); +extern void exim_sha_finish(hctx *, blob *); + +#endif +/* End of File */ |