Defines | Typedefs | Functions | Variables

ext/digest/sha2/sha2.c File Reference

#include "../defs.h"
#include <string.h>
#include <assert.h>
#include "sha2.h"
Include dependency graph for sha2.c:

Go to the source code of this file.

Defines

#define SHA256_SHORT_BLOCK_LENGTH   (SHA256_BLOCK_LENGTH - 8)
#define SHA384_SHORT_BLOCK_LENGTH   (SHA384_BLOCK_LENGTH - 16)
#define SHA512_SHORT_BLOCK_LENGTH   (SHA512_BLOCK_LENGTH - 16)
#define ULL(number)   (uint64_t)(number)
#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 u_int8_t sha2_byte
typedef u_int32_t sha2_word32
typedef u_int64_t sha2_word64

Functions

void SHA512_Last (SHA512_CTX *)
void SHA256_Transform (SHA256_CTX *, const sha2_word32 *)
void SHA512_Transform (SHA512_CTX *, const sha2_word64 *)
void SHA256_Init (SHA256_CTX *context)
void SHA256_Update (SHA256_CTX *context, const sha2_byte *data, size_t len)
void SHA256_Final (sha2_byte digest[], SHA256_CTX *context)
char * SHA256_End (SHA256_CTX *context, char buffer[])
char * SHA256_Data (const sha2_byte *data, size_t len, char digest[SHA256_DIGEST_STRING_LENGTH])
void SHA512_Init (SHA512_CTX *context)
void SHA512_Update (SHA512_CTX *context, const sha2_byte *data, size_t len)
void SHA512_Final (sha2_byte digest[], SHA512_CTX *context)
char * SHA512_End (SHA512_CTX *context, char buffer[])
char * SHA512_Data (const sha2_byte *data, size_t len, char digest[SHA512_DIGEST_STRING_LENGTH])
void SHA384_Init (SHA384_CTX *context)
void SHA384_Update (SHA384_CTX *context, const sha2_byte *data, size_t len)
void SHA384_Final (sha2_byte digest[], SHA384_CTX *context)
char * SHA384_End (SHA384_CTX *context, char buffer[])
char * SHA384_Data (const sha2_byte *data, size_t len, char digest[SHA384_DIGEST_STRING_LENGTH])

Variables

static const sha2_word32 K256 [64]
static const sha2_word32 sha256_initial_hash_value [8]
static const sha2_word64 K512 [80]
static const sha2_word64 sha384_initial_hash_value [8]
static const sha2_word64 sha512_initial_hash_value [8]
static const char * sha2_hex_digits = "0123456789abcdef"

Define Documentation

#define ADDINC128 (   w,
  n 
)
Value:
{ \
        (w)[0] += (sha2_word64)(n); \
        if ((w)[0] < (n)) { \
                (w)[1]++; \
        } \
}

Definition at line 158 of file sha2.c.

Referenced by SHA512_Update().

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

Definition at line 210 of file sha2.c.

Referenced by SHA256_Transform(), and SHA512_Transform().

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

Definition at line 211 of file sha2.c.

Referenced by SHA256_Transform(), and SHA512_Transform().

#define MEMCPY_BCOPY (   d,
  s,
  l 
)    memcpy((d), (s), (l))
#define MEMSET_BZERO (   p,
  l 
)    memset((p), 0, (l))
#define R (   b,
  x 
)    ((x) >> (b))

Definition at line 203 of file sha2.c.

Referenced by des_cipher(), and ruby_qsort().

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

Definition at line 138 of file sha2.c.

Referenced by SHA256_Final(), and SHA256_Transform().

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

Definition at line 143 of file sha2.c.

Referenced by SHA256_Final(), SHA384_Final(), SHA512_Final(), SHA512_Last(), and SHA512_Transform().

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

Definition at line 205 of file sha2.c.

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

Definition at line 207 of file sha2.c.

#define SHA256_SHORT_BLOCK_LENGTH   (SHA256_BLOCK_LENGTH - 8)

Definition at line 126 of file sha2.c.

Referenced by SHA256_Final().

#define SHA2_USE_MEMSET_MEMCPY   1

Definition at line 176 of file sha2.c.

#define SHA384_SHORT_BLOCK_LENGTH   (SHA384_BLOCK_LENGTH - 16)

Definition at line 127 of file sha2.c.

#define SHA512_SHORT_BLOCK_LENGTH   (SHA512_BLOCK_LENGTH - 16)

Definition at line 128 of file sha2.c.

Referenced by SHA512_Last().

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

Definition at line 214 of file sha2.c.

Referenced by SHA256_Transform().

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

Definition at line 216 of file sha2.c.

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

Definition at line 220 of file sha2.c.

Referenced by SHA512_Transform().

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

Definition at line 222 of file sha2.c.

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

Definition at line 217 of file sha2.c.

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

Definition at line 215 of file sha2.c.

Referenced by SHA256_Transform().

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

Definition at line 223 of file sha2.c.

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

Definition at line 221 of file sha2.c.

Referenced by SHA512_Transform().

#define ULL (   number  )     (uint64_t)(number)

Definition at line 134 of file sha2.c.


Typedef Documentation

typedef u_int8_t sha2_byte

Definition at line 117 of file sha2.c.

typedef u_int32_t sha2_word32

Definition at line 118 of file sha2.c.

typedef u_int64_t sha2_word64

Definition at line 119 of file sha2.c.


Function Documentation

char* SHA256_Data ( const sha2_byte data,
size_t  len,
char  digest[SHA256_DIGEST_STRING_LENGTH] 
)

Definition at line 661 of file sha2.c.

References SHA256_End(), SHA256_Init(), and SHA256_Update().

char* SHA256_End ( SHA256_CTX context,
char  buffer[] 
)

Definition at line 639 of file sha2.c.

References assert, MEMSET_BZERO, SHA256_DIGEST_LENGTH, SHA256_Final(), and sha2_hex_digits.

Referenced by SHA256_Data().

void SHA256_Final ( sha2_byte  digest[],
SHA256_CTX context 
)
void SHA256_Init ( SHA256_CTX context  ) 
void SHA256_Transform ( SHA256_CTX context,
const sha2_word32 data 
)

Definition at line 448 of file sha2.c.

References _SHA256_CTX::buffer, Ch, K256, Maj, REVERSE32, Sigma0_256, Sigma1_256, and _SHA256_CTX::state.

Referenced by SHA256_Final(), and SHA256_Update().

void SHA256_Update ( SHA256_CTX context,
const sha2_byte data,
size_t  len 
)
char* SHA384_Data ( const sha2_byte data,
size_t  len,
char  digest[SHA384_DIGEST_STRING_LENGTH] 
)

Definition at line 1063 of file sha2.c.

References SHA384_End(), SHA384_Init(), and SHA384_Update().

char* SHA384_End ( SHA384_CTX context,
char  buffer[] 
)

Definition at line 1041 of file sha2.c.

References assert, MEMSET_BZERO, sha2_hex_digits, SHA384_DIGEST_LENGTH, and SHA384_Final.

Referenced by SHA384_Data().

void SHA384_Final ( sha2_byte  digest[],
SHA384_CTX context 
)
void SHA384_Init ( SHA384_CTX context  ) 
void SHA384_Update ( SHA384_CTX context,
const sha2_byte data,
size_t  len 
)

Definition at line 1008 of file sha2.c.

References SHA512_Update().

Referenced by SHA384_Data().

char* SHA512_Data ( const sha2_byte data,
size_t  len,
char  digest[SHA512_DIGEST_STRING_LENGTH] 
)

Definition at line 989 of file sha2.c.

References SHA512_End(), SHA512_Init(), and SHA512_Update().

char* SHA512_End ( SHA512_CTX context,
char  buffer[] 
)

Definition at line 967 of file sha2.c.

References assert, MEMSET_BZERO, sha2_hex_digits, SHA512_DIGEST_LENGTH, and SHA512_Final().

Referenced by SHA512_Data().

void SHA512_Final ( sha2_byte  digest[],
SHA512_CTX context 
)

Definition at line 938 of file sha2.c.

References assert, MEMCPY_BCOPY, MEMSET_BZERO, REVERSE64, SHA512_DIGEST_LENGTH, SHA512_Last(), and _SHA512_CTX::state.

Referenced by SHA512_End().

void SHA512_Init ( SHA512_CTX context  ) 
void SHA512_Last ( SHA512_CTX context  ) 
void SHA512_Transform ( SHA512_CTX context,
const sha2_word64 data 
)

Definition at line 771 of file sha2.c.

References _SHA512_CTX::buffer, Ch, K512, Maj, REVERSE64, Sigma0_512, Sigma1_512, and _SHA512_CTX::state.

Referenced by SHA512_Last(), and SHA512_Update().

void SHA512_Update ( SHA512_CTX context,
const sha2_byte data,
size_t  len 
)

Variable Documentation

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 237 of file sha2.c.

Referenced by SHA256_Transform().

const sha2_word64 K512[80] [static]

Definition at line 269 of file sha2.c.

Referenced by SHA512_Transform().

Initial value:
 {
        0x6a09e667UL,
        0xbb67ae85UL,
        0x3c6ef372UL,
        0xa54ff53aUL,
        0x510e527fUL,
        0x9b05688cUL,
        0x1f83d9abUL,
        0x5be0cd19UL
}

Definition at line 257 of file sha2.c.

Referenced by SHA256_Init().

const char* sha2_hex_digits = "0123456789abcdef" [static]

Definition at line 340 of file sha2.c.

Referenced by SHA256_End(), SHA384_End(), and SHA512_End().

Initial value:
 {
        ULL(0xcbbb9d5dc1059ed8),
        ULL(0x629a292a367cd507),
        ULL(0x9159015a3070dd17),
        ULL(0x152fecd8f70e5939),
        ULL(0x67332667ffc00b31),
        ULL(0x8eb44a8768581511),
        ULL(0xdb0c2e0d64f98fa7),

}

Definition at line 313 of file sha2.c.

Referenced by SHA384_Init().

Initial value:
 {
        ULL(0x6a09e667f3bcc908),
        ULL(0xbb67ae8584caa73b),
        ULL(0x3c6ef372fe94f82b),
        ULL(0xa54ff53a5f1d36f1),
        ULL(0x510e527fade682d1),
        ULL(0x9b05688c2b3e6c1f),
        ULL(0x1f83d9abfb41bd6b),

}

Definition at line 325 of file sha2.c.

Referenced by SHA512_Init().