diff options
Diffstat (limited to 'pjlib-util/include/pjlib-util/hmac_md5.h')
| -rw-r--r-- | pjlib-util/include/pjlib-util/hmac_md5.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/pjlib-util/include/pjlib-util/hmac_md5.h b/pjlib-util/include/pjlib-util/hmac_md5.h index 5fefab51..f9bdca1a 100644 --- a/pjlib-util/include/pjlib-util/hmac_md5.h +++ b/pjlib-util/include/pjlib-util/hmac_md5.h @@ -29,6 +29,7 @@ */ #include <pj/types.h> +#include <pjlib-util/md5.h> PJ_BEGIN_DECL @@ -41,6 +42,15 @@ PJ_BEGIN_DECL * for Message Authentication, as described in RFC 2104 */ +/** + * The HMAC-MD5 context used in the incremental HMAC calculation. + */ +typedef struct pj_hmac_md5_context +{ + pj_md5_context context; /**< MD5 context */ + pj_uint8_t k_opad[64]; /**< opad xor-ed with key */ +} pj_hmac_md5_context; + /** * Calculate HMAC MD5 digest for the specified input and key. @@ -57,6 +67,36 @@ PJ_DECL(void) pj_hmac_md5(const pj_uint8_t *input, unsigned input_len, /** + * Initiate HMAC-MD5 context for incremental hashing. + * + * @param hctx HMAC-MD5 context. + * @param key Pointer to the authentication key. + * @param key_len Length of the authentication key. + */ +PJ_DECL(void) pj_hmac_md5_init(pj_hmac_md5_context *hctx, + const pj_uint8_t *key, unsigned key_len); + +/** + * Append string to the message. + * + * @param hctx HMAC-MD5 context. + * @param input Pointer to the input stream. + * @param input_len Length of input stream in bytes. + */ +PJ_DECL(void) pj_hmac_md5_update(pj_hmac_md5_context *hctx, + const pj_uint8_t *input, + unsigned input_len); + +/** + * Finish the message and return the digest. + * + * @param hctx HMAC-MD5 context. + * @param digest Buffer to be filled with HMAC MD5 digest. + */ +PJ_DECL(void) pj_hmac_md5_final(pj_hmac_md5_context *hctx, + pj_uint8_t digest[16]); + +/** * @} */ |