diff options
Diffstat (limited to 'openssl/doc/crypto/hmac.pod')
| -rw-r--r-- | openssl/doc/crypto/hmac.pod | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/openssl/doc/crypto/hmac.pod b/openssl/doc/crypto/hmac.pod index 0bd79a6d3..d92138d27 100644 --- a/openssl/doc/crypto/hmac.pod +++ b/openssl/doc/crypto/hmac.pod @@ -15,12 +15,12 @@ authentication code void HMAC_CTX_init(HMAC_CTX *ctx); - void HMAC_Init(HMAC_CTX *ctx, const void *key, int key_len, + int HMAC_Init(HMAC_CTX *ctx, const void *key, int key_len, const EVP_MD *md); - void HMAC_Init_ex(HMAC_CTX *ctx, const void *key, int key_len, + int HMAC_Init_ex(HMAC_CTX *ctx, const void *key, int key_len, const EVP_MD *md, ENGINE *impl); - void HMAC_Update(HMAC_CTX *ctx, const unsigned char *data, int len); - void HMAC_Final(HMAC_CTX *ctx, unsigned char *md, unsigned int *len); + int HMAC_Update(HMAC_CTX *ctx, const unsigned char *data, int len); + int HMAC_Final(HMAC_CTX *ctx, unsigned char *md, unsigned int *len); void HMAC_CTX_cleanup(HMAC_CTX *ctx); void HMAC_cleanup(HMAC_CTX *ctx); @@ -41,8 +41,6 @@ If B<md> is NULL, the digest is placed in a static array. The size of the output is placed in B<md_len>, unless it is B<NULL>. B<evp_md> can be EVP_sha1(), EVP_ripemd160() etc. -B<key> and B<evp_md> may be B<NULL> if a key and hash function have -been set in a previous call to HMAC_Init() for that B<HMAC_CTX>. HMAC_CTX_init() initialises a B<HMAC_CTX> before first use. It must be called. @@ -78,10 +76,13 @@ must have space for the hash function output. =head1 RETURN VALUES -HMAC() returns a pointer to the message authentication code. +HMAC() returns a pointer to the message authentication code or NULL if +an error occurred. -HMAC_CTX_init(), HMAC_Init_ex(), HMAC_Update(), HMAC_Final() and -HMAC_CTX_cleanup() do not return values. +HMAC_Init_ex(), HMAC_Update() and HMAC_Final() return 1 for success or 0 if +an error occurred. + +HMAC_CTX_init() and HMAC_CTX_cleanup() do not return values. =head1 CONFORMING TO @@ -99,4 +100,7 @@ are available since SSLeay 0.9.0. HMAC_CTX_init(), HMAC_Init_ex() and HMAC_CTX_cleanup() are available since OpenSSL 0.9.7. +HMAC_Init_ex(), HMAC_Update() and HMAC_Final() did not return values in +versions of OpenSSL before 1.0.0. + =cut |