sha1 算法源码 - 爱码网

原来指望sha1 这种烂大街的算法不会出什么幺蛾子结果《linux C编程实战Code》bt章节的sha1 代码我在linux和windows下的结果不一样

然后用了哈希工具查看了下发现结果也不一样。 windows和linux自带工具是一致的，但是和《linux C编程实战Code》的代码无论在windows还是linux下都不一致

这里记录下新得代码以后备用 (unbuntu wndows7 下执行计算结果一致)

 1 /*
 2 * sha1.h
 3 *
 4 * Description:
 5 * This is the header file for code which implements the Secure
 6 * Hashing Algorithm 1 as defined in FIPS PUB 180-1 published
 7 * April 17, 1995.
 8 *
 9 * Many of the variable names in this code, especially the
10 * single character names, were used because those were the names
11 * used in the publication.
12 *
13 * Please read the file sha1.c for more information.
14 *
15 */
16 
17 #ifndef _SHA1_H_
18 #define _SHA1_H_
19 #include <stdint.h>
20 /*
21 * If you do not have the ISO standard stdint.h header file, then you
22 * must typdef the following:
23 * name meaning
24 * uint32_t unsigned 32 bit integer
25 * uint8_t unsigned 8 bit integer (i.e., unsigned char)
26 * int_least16_t integer of >= 16 bits
27 *
28 */
29 #ifndef _SHA_enum_
30 #define _SHA_enum_
31 enum
32 {
33     shaSuccess = 0,
34     shaNull,         /* Null pointer parameter */
35     shaInputTooLong, /* input data too long */
36     shaStateError    /* called Input after Result */
37 };
38 #endif
39 #define SHA1HashSize 20
40 /*
41 * This structure will hold context information for the SHA-1
42 * hashing operation
43 */
44 typedef struct SHA1Context
45 {
46     uint32_t Intermediate_Hash[SHA1HashSize / 4]; /* Message Digest */
47     uint32_t Length_Low; /* Message length in bits */
48     uint32_t Length_High; /* Message length in bits */
49     /* Index into message block array */
50     int_least16_t Message_Block_Index;
51     uint8_t Message_Block[64]; /* 512-bit message blocks */
52     int Computed; /* Is the digest computed? */
53     int Corrupted; /* Is the message digest corrupted? */
54 } SHA1Context;
55 
56 
57 /*
58 * Function Prototypes
59 */
60 
61 int SHA1Reset(SHA1Context *);
62 int SHA1Input(SHA1Context *, const uint8_t *, unsigned int);
63 int SHA1Result(SHA1Context *, uint8_t Message_Digest[SHA1HashSize]);
64 
65 #endif

sha1.h