DeforaNetworks/fwknop
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convert HMAC functions to static where possible

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This commit is contained in:
Michael Rash 2013-03-09 16:47:42 -05:00
parent 3ff39dfab4
commit 6741cfc22b
2 changed files with 29 additions and 28 deletions
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44
lib/hmac.c
View File

@ -31,21 +31,16 @@
#include "hmac.h" #include "hmac.h"
void hmac_sha256(const char *msg, const unsigned int msg_len, typedef struct {
unsigned char *hmac, const char *hmac_key) SHA256_CTX ctx_inside;
{ SHA256_CTX ctx_outside;
hmac_sha256_ctx ctx;
memset(&ctx, 0, sizeof(&ctx)); unsigned char block_inner_pad[SHA256_BLOCK_LEN];
unsigned char block_outer_pad[SHA256_BLOCK_LEN];
} hmac_sha256_ctx;
hmac_sha256_init(&ctx, hmac_key); static void
hmac_sha256_update(&ctx, msg, msg_len); hmac_sha256_init(hmac_sha256_ctx *ctx, const char *key)
hmac_sha256_final(&ctx, hmac);
return;
}
void hmac_sha256_init(hmac_sha256_ctx *ctx, const char *key)
{ {
int i = 0; int i = 0;
@ -63,14 +58,16 @@ void hmac_sha256_init(hmac_sha256_ctx *ctx, const char *key)
return; return;
} }
void hmac_sha256_update(hmac_sha256_ctx *ctx, const char *msg, static void
hmac_sha256_update(hmac_sha256_ctx *ctx, const char *msg,
unsigned int msg_len) unsigned int msg_len)
{ {
SHA256_Update(&ctx->ctx_inside, (unsigned char *)msg, msg_len); SHA256_Update(&ctx->ctx_inside, (unsigned char *)msg, msg_len);
return; return;
} }
void hmac_sha256_final(hmac_sha256_ctx *ctx, unsigned char *hmac) static void
hmac_sha256_final(hmac_sha256_ctx *ctx, unsigned char *hmac)
{ {
unsigned char digest_inside[SHA256_DIGEST_LEN]; unsigned char digest_inside[SHA256_DIGEST_LEN];
@ -80,3 +77,20 @@ void hmac_sha256_final(hmac_sha256_ctx *ctx, unsigned char *hmac)
return; return;
} }
void
hmac_sha256(const char *msg, const unsigned int msg_len,
unsigned char *hmac, const char *hmac_key)
{
hmac_sha256_ctx ctx;
memset(&ctx, 0, sizeof(&ctx));
hmac_sha256_init(&ctx, hmac_key);
hmac_sha256_update(&ctx, msg, msg_len);
hmac_sha256_final(&ctx, hmac);
return;
}

13
lib/hmac.h
View File

@ -33,22 +33,9 @@
#include "digest.h" #include "digest.h"
typedef struct {
SHA256_CTX ctx_inside;
SHA256_CTX ctx_outside;
unsigned char block_inner_pad[SHA256_BLOCK_LEN];
unsigned char block_outer_pad[SHA256_BLOCK_LEN];
} hmac_sha256_ctx;
void hmac_sha256(const char *msg, const unsigned int msg_len, void hmac_sha256(const char *msg, const unsigned int msg_len,
unsigned char *hmac, const char *hmac_key); unsigned char *hmac, const char *hmac_key);
void hmac_sha256_init(hmac_sha256_ctx *ctx, const char *key);
void hmac_sha256_update(hmac_sha256_ctx *ctx, const char *msg,
unsigned int msg_len);
void hmac_sha256_final(hmac_sha256_ctx *ctx, unsigned char *hmac);
#endif /* HMAC_H */ #endif /* HMAC_H */
/***EOF***/ /***EOF***/