Strophe  0.8
XMPP client library
Defines | Functions
sha1.c File Reference

SHA-1 hash. More...

Defines

#define rol(value, bits)   (((value) << (bits)) | ((value) >> (32 - (bits))))
#define blk0(i)
#define blk(i)
#define R0(v, w, x, y, z, i)   z+=((w&(x^y))^y)+blk0(i)+0x5A827999+rol(v,5);w=rol(w,30);
#define R1(v, w, x, y, z, i)   z+=((w&(x^y))^y)+blk(i)+0x5A827999+rol(v,5);w=rol(w,30);
#define R2(v, w, x, y, z, i)   z+=(w^x^y)+blk(i)+0x6ED9EBA1+rol(v,5);w=rol(w,30);
#define R3(v, w, x, y, z, i)   z+=(((w|x)&y)|(w&x))+blk(i)+0x8F1BBCDC+rol(v,5);w=rol(w,30);
#define R4(v, w, x, y, z, i)   z+=(w^x^y)+blk(i)+0xCA62C1D6+rol(v,5);w=rol(w,30);

Functions

void SHA1_Transform (uint32_t state[5], const uint8_t buffer[64])
void SHA1_Init (SHA1_CTX *context)
void SHA1_Update (SHA1_CTX *context, const uint8_t *data, const size_t len)
void SHA1_Final (SHA1_CTX *context, uint8_t digest[SHA1_DIGEST_SIZE])

Detailed Description

SHA-1 hash.


Define Documentation

#define rol (   value,
  bits 
)    (((value) << (bits)) | ((value) >> (32 - (bits))))
#define blk0 (   i)
Value:
(block->l[i] = (rol(block->l[i],24)&0xFF00FF00) \
    |(rol(block->l[i],8)&0x00FF00FF))
#define blk (   i)
Value:
(block->l[i&15] = rol(block->l[(i+13)&15]^block->l[(i+8)&15] \
    ^block->l[(i+2)&15]^block->l[i&15],1))
#define R0 (   v,
  w,
  x,
  y,
  z,
 
)    z+=((w&(x^y))^y)+blk0(i)+0x5A827999+rol(v,5);w=rol(w,30);
#define R1 (   v,
  w,
  x,
  y,
  z,
 
)    z+=((w&(x^y))^y)+blk(i)+0x5A827999+rol(v,5);w=rol(w,30);
#define R2 (   v,
  w,
  x,
  y,
  z,
 
)    z+=(w^x^y)+blk(i)+0x6ED9EBA1+rol(v,5);w=rol(w,30);
#define R3 (   v,
  w,
  x,
  y,
  z,
 
)    z+=(((w|x)&y)|(w&x))+blk(i)+0x8F1BBCDC+rol(v,5);w=rol(w,30);
#define R4 (   v,
  w,
  x,
  y,
  z,
 
)    z+=(w^x^y)+blk(i)+0xCA62C1D6+rol(v,5);w=rol(w,30);

Function Documentation

void SHA1_Transform ( uint32_t  state[5],
const uint8_t  buffer[64] 
)
void SHA1_Init ( SHA1_CTX context)
void SHA1_Update ( SHA1_CTX context,
const uint8_t *  data,
const size_t  len 
)
void SHA1_Final ( SHA1_CTX context,
uint8_t  digest[SHA1_DIGEST_SIZE] 
)