1 /* sha1.h */
2 #ifndef SHA1_H
3 #define SHA1_H
4 #include "ustd.h"
5 
6 #ifdef __cplusplus
7 extern "C" {
8 #endif
9 
10 #define sha1_block_size 64
11 #define sha1_hash_size  20
12 
13 /* algorithm context */
14 typedef struct sha1_ctx
15 {
16 	unsigned char message[sha1_block_size]; /* 512-bit buffer for leftovers */
17 	uint64_t length;   /* number of processed bytes */
18 	unsigned hash[5];  /* 160-bit algorithm internal hashing state */
19 } sha1_ctx;
20 
21 /* hash functions */
22 
23 void rhash_sha1_init(sha1_ctx* ctx);
24 void rhash_sha1_update(sha1_ctx* ctx, const unsigned char* msg, size_t size);
25 void rhash_sha1_final(sha1_ctx* ctx, unsigned char* result);
26 
27 #ifdef __cplusplus
28 } /* extern "C" */
29 #endif /* __cplusplus */
30 
31 #endif /* SHA1_H */
32