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Add generic message authentication interface

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Add generic interface for generating and verifying MACs (message
authentication codes). Replace multiple HMAC implementation with
a generic one.
This commit is contained in:
Ondrej Zajicek (work)
2016-10-25 17:04:17 +02:00
parent 7eec398875
commit de2a27e255
16 changed files with 493 additions and 543 deletions
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44
lib/sha512.h
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@@ -1,6 +1,5 @@
/*
* BIRD Library -- SHA-512 and SHA-384 Hash Functions,
* HMAC-SHA-512 and HMAC-SHA-384 Functions
* BIRD Library -- SHA-512 and SHA-384 Hash Functions
*
* (c) 2015 CZ.NIC z.s.p.o.
*
@@ -25,8 +24,10 @@
#define SHA512_BLOCK_SIZE 128
struct hash_context;
struct sha512_context {
u64 h0, h1, h2, h3, h4, h5, h6, h7;
u64 h0, h1, h2, h3, h4, h5, h6, h7;
byte buf[SHA512_BLOCK_SIZE];
uint nblocks;
uint count;
@@ -35,39 +36,14 @@ struct sha512_context {
#define sha384_context sha512_context
void sha512_init(struct sha512_context *ctx);
void sha384_init(struct sha384_context *ctx);
void sha512_init(struct hash_context *ctx);
void sha384_init(struct hash_context *ctx);
void sha512_update(struct sha512_context *ctx, const byte *buf, size_t len);
static inline void sha384_update(struct sha384_context *ctx, const byte *buf, size_t len)
{ sha512_update(ctx, buf, len); }
void sha512_update(struct hash_context *ctx, const byte *buf, uint len);
#define sha384_update sha512_update
byte *sha512_final(struct sha512_context *ctx);
static inline byte *sha384_final(struct sha384_context *ctx)
{ return sha512_final(ctx); }
/*
* HMAC-SHA512, HMAC-SHA384
*/
struct sha512_hmac_context
{
struct sha512_context ictx;
struct sha512_context octx;
};
#define sha384_hmac_context sha512_hmac_context
void sha512_hmac_init(struct sha512_hmac_context *ctx, const byte *key, size_t keylen);
void sha384_hmac_init(struct sha384_hmac_context *ctx, const byte *key, size_t keylen);
void sha512_hmac_update(struct sha512_hmac_context *ctx, const byte *buf, size_t buflen);
void sha384_hmac_update(struct sha384_hmac_context *ctx, const byte *buf, size_t buflen);
byte *sha512_hmac_final(struct sha512_hmac_context *ctx);
byte *sha384_hmac_final(struct sha384_hmac_context *ctx);
byte *sha512_final(struct hash_context *ctx);
#define sha384_final sha512_final
#endif /* _BIRD_SHA512_H_ */