00001 #ifndef CRYPTO__HMAC__H__
00002 #define CRYPTO__HMAC__H__
00003
00004 typedef void (*hmac_init_fn)(void*);
00005 typedef void (*hmac_update_fn)(void*, const unsigned char*, unsigned long);
00006 typedef void (*hmac_finalize_fn)(void*, unsigned char*);
00007 typedef void (*hmac_extract_fn)(const void*, void*);
00008 typedef void (*hmac_inject_fn)(void*, const void*);
00009
00010 struct hmac_control_block
00011 {
00012 unsigned state_size;
00013 unsigned block_size;
00014 unsigned digest_size;
00015 unsigned midstate_size;
00016 hmac_init_fn init;
00017 hmac_update_fn update;
00018 hmac_finalize_fn finalize;
00019 hmac_extract_fn extract;
00020 hmac_inject_fn inject;
00021 };
00022
00023 extern const struct hmac_control_block hmac_md5;
00024 extern const struct hmac_control_block hmac_sha1;
00025 extern const struct hmac_control_block hmac_sha256;
00026 extern const struct hmac_control_block hmac_sha384;
00027 extern const struct hmac_control_block hmac_sha512;
00028
00029 struct str;
00030 extern void hmac_prepare(const struct hmac_control_block* hcb,
00031 void* midstate,
00032 const struct str* secret);
00033 extern void hmac_finish(const struct hmac_control_block* hcb,
00034 const void* midstate,
00035 const struct str* nonce,
00036 void* outout);
00037 extern void hmac(const struct hmac_control_block* hcb,
00038 const struct str* secret,
00039 const struct str* nonce,
00040 void* output);
00041
00042 #endif