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sha2.c File Reference
#include <string.h>
#include <assert.h>
#include "sha2.h"

Go to the source code of this file.

Macros

#define SHA256_SHORT_BLOCK_LENGTH   (SHA256_BLOCK_LENGTH - 8)
 
#define REVERSE32(w, x)
 
#define REVERSE64(w, x)
 
#define ADDINC128(w, n)
 
#define SHA2_USE_MEMSET_MEMCPY   1
 
#define MEMSET_BZERO(p, l)   memset((p), 0, (l))
 
#define MEMCPY_BCOPY(d, s, l)   memcpy((d), (s), (l))
 
#define R(b, x)   ((x) >> (b))
 
#define S32(b, x)   (((x) >> (b)) | ((x) << (32 - (b))))
 
#define S64(b, x)   (((x) >> (b)) | ((x) << (64 - (b))))
 
#define Ch(x, y, z)   (((x) & (y)) ^ ((~(x)) & (z)))
 
#define Maj(x, y, z)   (((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z)))
 
#define Sigma0_256(x)   (S32(2, (x)) ^ S32(13, (x)) ^ S32(22, (x)))
 
#define Sigma1_256(x)   (S32(6, (x)) ^ S32(11, (x)) ^ S32(25, (x)))
 
#define sigma0_256(x)   (S32(7, (x)) ^ S32(18, (x)) ^ R(3 , (x)))
 
#define sigma1_256(x)   (S32(17, (x)) ^ S32(19, (x)) ^ R(10, (x)))
 
#define Sigma0_512(x)   (S64(28, (x)) ^ S64(34, (x)) ^ S64(39, (x)))
 
#define Sigma1_512(x)   (S64(14, (x)) ^ S64(18, (x)) ^ S64(41, (x)))
 
#define sigma0_512(x)   (S64( 1, (x)) ^ S64( 8, (x)) ^ R( 7, (x)))
 
#define sigma1_512(x)   (S64(19, (x)) ^ S64(61, (x)) ^ R( 6, (x)))
 

Typedefs

typedef apr_byte_t sha2_byte
 
typedef apr_uint32_t sha2_word32
 
typedef apr_uint64_t sha2_word64
 

Functions

void apr__SHA256_Transform (SHA256_CTX *, const sha2_word32 *)
 
void apr__SHA256_Init (SHA256_CTX *context)
 
void apr__SHA256_Update (SHA256_CTX *context, const sha2_byte *data, size_t len)
 
void apr__SHA256_Final (sha2_byte digest[32], SHA256_CTX *context)
 
char * apr__SHA256_End (SHA256_CTX *context, char buffer[(32 *2+1)])
 
char * apr__SHA256_Data (const sha2_byte *data, size_t len, char digest[(32 *2+1)])
 

Variables

static const sha2_word32 K256 [64]
 
static const sha2_word32 sha256_initial_hash_value [8]
 
static const char * sha2_hex_digits = "0123456789abcdef"
 

Macro Definition Documentation

◆ ADDINC128

#define ADDINC128 (   w,
  n 
)
Value:
{ \
(w)[0] += (sha2_word64)(n); \
if ((w)[0] < (n)) { \
(w)[1]++; \
} \
}
n
int n
Definition ap_regex.h:278
size
apr_size_t size
Definition apr_allocator.h:115
sha2_word64
apr_uint64_t sha2_word64
Definition sha2.c:50

Definition at line 79 of file sha2.c.

◆ Ch

#define Ch (   x,
  y,
  z 
)    (((x) & (y)) ^ ((~(x)) & (z)))

Definition at line 131 of file sha2.c.

◆ Maj

#define Maj (   x,
  y,
  z 
)    (((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z)))

Definition at line 132 of file sha2.c.

◆ MEMCPY_BCOPY

#define MEMCPY_BCOPY (   d,
  s,
  l 
)    memcpy((d), (s), (l))

Definition at line 106 of file sha2.c.

◆ MEMSET_BZERO

#define MEMSET_BZERO (   p,
  l 
)    memset((p), 0, (l))

Definition at line 105 of file sha2.c.

◆ R

#define R (   b,
  x 
)    ((x) >> (b))

Definition at line 124 of file sha2.c.

◆ REVERSE32

#define REVERSE32 (   w,
  x 
)
Value:
{ \
sha2_word32 tmp = (w); \
tmp = (tmp >> 16) | (tmp << 16); \
(x) = ((tmp & 0xff00ff00UL) >> 8) | ((tmp & 0x00ff00ffUL) << 8); \
}
sha2_word32
apr_uint32_t sha2_word32
Definition sha2.c:49

Definition at line 59 of file sha2.c.

◆ REVERSE64

#define REVERSE64 (   w,
  x 
)
Value:
{ \
sha2_word64 tmp = (w); \
tmp = (tmp >> 32) | (tmp << 32); \
tmp = ((tmp & APR_UINT64_C(0xff00ff00ff00ff00)) >> 8) | \
((tmp & APR_UINT64_C(0x00ff00ff00ff00ff)) << 8); \
(x) = ((tmp & APR_UINT64_C(0xffff0000ffff0000)) >> 16) | \
((tmp & APR_UINT64_C(0x0000ffff0000ffff)) << 16); \
}

Definition at line 64 of file sha2.c.

◆ S32

#define S32 (   b,
  x 
)    (((x) >> (b)) | ((x) << (32 - (b))))

Definition at line 126 of file sha2.c.

◆ S64

#define S64 (   b,
  x 
)    (((x) >> (b)) | ((x) << (64 - (b))))

Definition at line 128 of file sha2.c.

◆ SHA256_SHORT_BLOCK_LENGTH

#define SHA256_SHORT_BLOCK_LENGTH   (SHA256_BLOCK_LENGTH - 8)

Definition at line 54 of file sha2.c.

◆ SHA2_USE_MEMSET_MEMCPY

#define SHA2_USE_MEMSET_MEMCPY   1

Definition at line 97 of file sha2.c.

◆ Sigma0_256

#define Sigma0_256 (   x)    (S32(2, (x)) ^ S32(13, (x)) ^ S32(22, (x)))

Definition at line 135 of file sha2.c.

◆ sigma0_256

#define sigma0_256 (   x)    (S32(7, (x)) ^ S32(18, (x)) ^ R(3 , (x)))

Definition at line 137 of file sha2.c.

◆ Sigma0_512

#define Sigma0_512 (   x)    (S64(28, (x)) ^ S64(34, (x)) ^ S64(39, (x)))

Definition at line 141 of file sha2.c.

◆ sigma0_512

#define sigma0_512 (   x)    (S64( 1, (x)) ^ S64( 8, (x)) ^ R( 7, (x)))

Definition at line 143 of file sha2.c.

◆ Sigma1_256

#define Sigma1_256 (   x)    (S32(6, (x)) ^ S32(11, (x)) ^ S32(25, (x)))

Definition at line 136 of file sha2.c.

◆ sigma1_256

#define sigma1_256 (   x)    (S32(17, (x)) ^ S32(19, (x)) ^ R(10, (x)))

Definition at line 138 of file sha2.c.

◆ Sigma1_512

#define Sigma1_512 (   x)    (S64(14, (x)) ^ S64(18, (x)) ^ S64(41, (x)))

Definition at line 142 of file sha2.c.

◆ sigma1_512

#define sigma1_512 (   x)    (S64(19, (x)) ^ S64(61, (x)) ^ R( 6, (x)))

Definition at line 144 of file sha2.c.

Typedef Documentation

◆ sha2_byte

typedef apr_byte_t sha2_byte

Definition at line 48 of file sha2.c.

◆ sha2_word32

typedef apr_uint32_t sha2_word32

Definition at line 49 of file sha2.c.

◆ sha2_word64

typedef apr_uint64_t sha2_word64

Definition at line 50 of file sha2.c.

Function Documentation

◆ apr__SHA256_Data()

char * apr__SHA256_Data ( const sha2_byte *  data,
size_t  len,
char  digest[(32 *2+1)] 
)

Definition at line 522 of file sha2.c.

◆ apr__SHA256_End()

char * apr__SHA256_End ( SHA256_CTX *  context,
char  buffer[(32 *2+1)] 
)

Definition at line 499 of file sha2.c.

◆ apr__SHA256_Final()

void apr__SHA256_Final ( sha2_byte  digest[32],
SHA256_CTX *  context 
)

Definition at line 428 of file sha2.c.

◆ apr__SHA256_Init()

void apr__SHA256_Init ( SHA256_CTX *  context)

Definition at line 195 of file sha2.c.

◆ apr__SHA256_Transform()

void apr__SHA256_Transform ( SHA256_CTX *  context,
const sha2_word32 *  data 
)

Definition at line 299 of file sha2.c.

◆ apr__SHA256_Update()

void apr__SHA256_Update ( SHA256_CTX *  context,
const sha2_byte *  data,
size_t  len 
)

Definition at line 379 of file sha2.c.

Variable Documentation

◆ K256

const sha2_word32 K256[64]
static
Initial value:
= {
0x428a2f98UL, 0x71374491UL, 0xb5c0fbcfUL, 0xe9b5dba5UL,
0x3956c25bUL, 0x59f111f1UL, 0x923f82a4UL, 0xab1c5ed5UL,
0xd807aa98UL, 0x12835b01UL, 0x243185beUL, 0x550c7dc3UL,
0x72be5d74UL, 0x80deb1feUL, 0x9bdc06a7UL, 0xc19bf174UL,
0xe49b69c1UL, 0xefbe4786UL, 0x0fc19dc6UL, 0x240ca1ccUL,
0x2de92c6fUL, 0x4a7484aaUL, 0x5cb0a9dcUL, 0x76f988daUL,
0x983e5152UL, 0xa831c66dUL, 0xb00327c8UL, 0xbf597fc7UL,
0xc6e00bf3UL, 0xd5a79147UL, 0x06ca6351UL, 0x14292967UL,
0x27b70a85UL, 0x2e1b2138UL, 0x4d2c6dfcUL, 0x53380d13UL,
0x650a7354UL, 0x766a0abbUL, 0x81c2c92eUL, 0x92722c85UL,
0xa2bfe8a1UL, 0xa81a664bUL, 0xc24b8b70UL, 0xc76c51a3UL,
0xd192e819UL, 0xd6990624UL, 0xf40e3585UL, 0x106aa070UL,
0x19a4c116UL, 0x1e376c08UL, 0x2748774cUL, 0x34b0bcb5UL,
0x391c0cb3UL, 0x4ed8aa4aUL, 0x5b9cca4fUL, 0x682e6ff3UL,
0x748f82eeUL, 0x78a5636fUL, 0x84c87814UL, 0x8cc70208UL,
0x90befffaUL, 0xa4506cebUL, 0xbef9a3f7UL, 0xc67178f2UL
}

Definition at line 156 of file sha2.c.

◆ sha256_initial_hash_value

const sha2_word32 sha256_initial_hash_value[8]
static
Initial value:
= {
0x6a09e667UL,
0xbb67ae85UL,
0x3c6ef372UL,
0xa54ff53aUL,
0x510e527fUL,
0x9b05688cUL,
0x1f83d9abUL,
0x5be0cd19UL
}

Definition at line 176 of file sha2.c.

◆ sha2_hex_digits

const char* sha2_hex_digits = "0123456789abcdef"
static

Definition at line 191 of file sha2.c.

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