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Annotation of embedaddon/bird/lib/sha256.h, revision 1.1.1.1

1.1       misho       1: /*
                      2:  *     BIRD Library -- SHA-256 and SHA-224 Hash Functions
                      3:  *
                      4:  *     (c) 2015 CZ.NIC z.s.p.o.
                      5:  *
                      6:  *     Based on the code from libgcrypt-1.6.0, which is
                      7:  *     (c) 2003, 2006, 2008, 2009 Free Software Foundation, Inc.
                      8:  *
                      9:  *     Can be freely distributed and used under the terms of the GNU GPL.
                     10:  */
                     11: 
                     12: #ifndef _BIRD_SHA256_H_
                     13: #define _BIRD_SHA256_H_
                     14: 
                     15: #include "nest/bird.h"
                     16: 
                     17: 
                     18: #define SHA224_SIZE            28
                     19: #define SHA224_HEX_SIZE                57
                     20: #define SHA224_BLOCK_SIZE      64
                     21: 
                     22: #define SHA256_SIZE            32
                     23: #define SHA256_HEX_SIZE                65
                     24: #define SHA256_BLOCK_SIZE      64
                     25: 
                     26: 
                     27: struct hash_context;
                     28: 
                     29: struct sha256_context {
                     30:   u32  h0, h1, h2, h3, h4, h5, h6, h7;
                     31:   byte buf[SHA256_BLOCK_SIZE];
                     32:   uint nblocks;
                     33:   uint count;
                     34: };
                     35: 
                     36: #define sha224_context sha256_context
                     37: 
                     38: 
                     39: void sha256_init(struct hash_context *ctx);
                     40: void sha224_init(struct hash_context *ctx);
                     41: 
                     42: void sha256_update(struct hash_context *ctx, const byte *buf, uint len);
                     43: #define sha224_update sha256_update
                     44: 
                     45: byte *sha256_final(struct hash_context *ctx);
                     46: #define sha224_final sha256_final
                     47: 
                     48: 
                     49: #endif /* _BIRD_SHA256_H_ */