## Revision 3884689b libavutil/sha1.c

View differences:

libavutil/sha1.c
13 13

14 14
```#define rol(value, bits) (((value) << (bits)) | ((value) >> (32 - (bits))))
```
15 15

16
```/* blk0() and blk() perform the initial expand. */
```
17
```/* I got the idea of expanding during the round function from SSLeay */
```
18
```#define blk0(i) (block[i])
```
19 16
```#define blk(i) (block[i])
```
20 17

21 18
```/* (R0+R1), R2, R3, R4 are the different operations used in SHA1 */
```
22
```#define R0(v,w,x,y,z,i) z+=((w&(x^y))^y)    +blk0(i)+0x5A827999+rol(v,5);w=rol(w,30);
```
23
```#define R1(v,w,x,y,z,i) z+=((w&(x^y))^y)    +blk (i)+0x5A827999+rol(v,5);w=rol(w,30);
```
19
```#define R0(v,w,x,y,z,i) z+=((w&(x^y))^y)    +blk (i)+0x5A827999+rol(v,5);w=rol(w,30);
```
24 20
```#define R2(v,w,x,y,z,i) z+=( w^x     ^y)    +blk (i)+0x6ED9EBA1+rol(v,5);w=rol(w,30);
```
25 21
```#define R3(v,w,x,y,z,i) z+=(((w|x)&y)|(w&x))+blk (i)+0x8F1BBCDC+rol(v,5);w=rol(w,30);
```
26 22
```#define R4(v,w,x,y,z,i) z+=( w^x     ^y)    +blk (i)+0xCA62C1D6+rol(v,5);w=rol(w,30);
```

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