/home/dko/Projects/mobilec/src/security/xyssl-0.9/library/sha4.c File Reference

#include "xyssl/config.h"
#include "xyssl/sha4.h"
#include <string.h>
#include <stdio.h>

Go to the source code of this file.

Defines

#define GET_UINT64_BE(n, b, i)
#define PUT_UINT64_BE(n, b, i)
#define SHR(x, n)   (x >> n)
#define ROTR(x, n)   (SHR(x,n) | (x << (64 - n)))
#define S0(x)   (ROTR(x, 1) ^ ROTR(x, 8) ^ SHR(x, 7))
#define S1(x)   (ROTR(x,19) ^ ROTR(x,61) ^ SHR(x, 6))
#define S2(x)   (ROTR(x,28) ^ ROTR(x,34) ^ ROTR(x,39))
#define S3(x)   (ROTR(x,14) ^ ROTR(x,18) ^ ROTR(x,41))
#define F0(x, y, z)   ((x & y) | (z & (x | y)))
#define F1(x, y, z)   (z ^ (x & (y ^ z)))
#define P(a, b, c, d, e, f, g, h, x, K)

Functions

void sha4_starts (sha4_context *ctx, int is384)
 SHA-512 context setup.
static void sha4_process (sha4_context *ctx, unsigned char data[128])
void sha4_update (sha4_context *ctx, unsigned char *input, int ilen)
 SHA-512 process buffer.
void sha4_finish (sha4_context *ctx, unsigned char output[64])
 SHA-512 final digest.
void sha4 (unsigned char *input, int ilen, unsigned char output[64], int is384)
 Output = SHA-512( input buffer ).
int sha4_file (char *path, unsigned char output[64], int is384)
 Output = SHA-512( file contents ).
void sha4_hmac_starts (sha4_context *ctx, unsigned char *key, int keylen, int is384)
 SHA-512 HMAC context setup.
void sha4_hmac_update (sha4_context *ctx, unsigned char *input, int ilen)
 SHA-512 HMAC process buffer.
void sha4_hmac_finish (sha4_context *ctx, unsigned char output[64])
 SHA-512 HMAC final digest.
void sha4_hmac (unsigned char *key, int keylen, unsigned char *input, int ilen, unsigned char output[64], int is384)
 Output = HMAC-SHA-512( hmac key, input buffer ).
int sha4_self_test (int verbose)
 Checkup routine.

Variables

static const unsigned int64 K [80]
static const unsigned char sha4_padding [128]
static unsigned char sha4_test_buf [3][113]
static const int sha4_test_buflen [3]
static const unsigned char sha4_test_sum [6][64]
static unsigned char sha4_hmac_test_key [7][26]
static const int sha4_hmac_test_keylen [7]
static unsigned char sha4_hmac_test_buf [7][153]
static const int sha4_hmac_test_buflen [7]
static const unsigned char sha4_hmac_test_sum [14][64]

Define Documentation

#define F0 ( x,
y,
z   )     ((x & y) | (z & (x | y)))
#define F1 ( x,
y,
z   )     (z ^ (x & (y ^ z)))
#define GET_UINT64_BE ( n,
b,
i   ) 
Value:
{                                                       \
    (n) = ( (unsigned int64) (b)[(i)    ] << 56 )       \
        | ( (unsigned int64) (b)[(i) + 1] << 48 )       \
        | ( (unsigned int64) (b)[(i) + 2] << 40 )       \
        | ( (unsigned int64) (b)[(i) + 3] << 32 )       \
        | ( (unsigned int64) (b)[(i) + 4] << 24 )       \
        | ( (unsigned int64) (b)[(i) + 5] << 16 )       \
        | ( (unsigned int64) (b)[(i) + 6] <<  8 )       \
        | ( (unsigned int64) (b)[(i) + 7]       );      \
}

Definition at line 39 of file sha4.c.

Referenced by sha4_process().

#define P ( a,
b,
c,
d,
e,
f,
g,
h,
x,
K   ) 
Value:
{                                               \
    temp1 = h + S3(e) + F1(e,f,g) + K + x;      \
    temp2 = S2(a) + F0(a,b,c);                  \
    d += temp1; h = temp1 + temp2;              \
}
#define PUT_UINT64_BE ( n,
b,
i   ) 
Value:
{                                                       \
    (b)[(i)    ] = (unsigned char) ( (n) >> 56 );       \
    (b)[(i) + 1] = (unsigned char) ( (n) >> 48 );       \
    (b)[(i) + 2] = (unsigned char) ( (n) >> 40 );       \
    (b)[(i) + 3] = (unsigned char) ( (n) >> 32 );       \
    (b)[(i) + 4] = (unsigned char) ( (n) >> 24 );       \
    (b)[(i) + 5] = (unsigned char) ( (n) >> 16 );       \
    (b)[(i) + 6] = (unsigned char) ( (n) >>  8 );       \
    (b)[(i) + 7] = (unsigned char) ( (n)       );       \
}

Definition at line 53 of file sha4.c.

Referenced by sha4_finish().

#define ROTR ( x,
n   )     (SHR(x,n) | (x << (64 - n)))
#define S0 ( x   )     (ROTR(x, 1) ^ ROTR(x, 8) ^ SHR(x, 7))
#define S1 ( x   )     (ROTR(x,19) ^ ROTR(x,61) ^ SHR(x, 6))
#define S2 ( x   )     (ROTR(x,28) ^ ROTR(x,34) ^ ROTR(x,39))
#define S3 ( x   )     (ROTR(x,14) ^ ROTR(x,18) ^ ROTR(x,41))
#define SHR ( x,
n   )     (x >> n)

Function Documentation

void sha4 ( unsigned char *  input,
int  ilen,
unsigned char  output[64],
int  is384 
)

Output = SHA-512( input buffer ).

Parameters:
input buffer holding the data
ilen length of the input data
output SHA-384/512 checksum result
is384 0 = use SHA512, 1 = use SHA384

Definition at line 312 of file sha4.c.

References sha4_finish(), sha4_starts(), and sha4_update().

Referenced by sha4_hmac_starts().

int sha4_file ( char *  path,
unsigned char  output[64],
int  is384 
)

Output = SHA-512( file contents ).

Parameters:
path input file name
output SHA-384/512 checksum result
is384 0 = use SHA512, 1 = use SHA384
Returns:
0 if successful, 1 if fopen failed, or 2 if fread failed

Definition at line 327 of file sha4.c.

References buf, f, sha4_finish(), sha4_starts(), and sha4_update().

void sha4_finish ( sha4_context *  ctx,
unsigned char  output[64] 
)

SHA-512 final digest.

Parameters:
ctx SHA-512 context
output SHA-384/512 checksum result

Definition at line 276 of file sha4.c.

References int, int64, sha4_context::is384, PUT_UINT64_BE, sha4_padding, sha4_update(), sha4_context::state, and sha4_context::total.

Referenced by sha4(), sha4_file(), sha4_hmac_finish(), and sha4_self_test().

void sha4_hmac ( unsigned char *  key,
int  keylen,
unsigned char *  input,
int  ilen,
unsigned char  output[64],
int  is384 
)

Output = HMAC-SHA-512( hmac key, input buffer ).

Parameters:
key HMAC secret key
keylen length of the HMAC key
input buffer holding the data
ilen length of the input data
output HMAC-SHA-384/512 result
is384 0 = use SHA512, 1 = use SHA384

Definition at line 419 of file sha4.c.

References sha4_hmac_finish(), sha4_hmac_starts(), and sha4_hmac_update().

void sha4_hmac_finish ( sha4_context *  ctx,
unsigned char  output[64] 
)

SHA-512 HMAC final digest.

Parameters:
ctx HMAC context
output SHA-384/512 HMAC checksum result

Definition at line 399 of file sha4.c.

References sha4_context::is384, sha4_context::opad, sha4_finish(), sha4_starts(), and sha4_update().

Referenced by sha4_hmac(), and sha4_self_test().

void sha4_hmac_starts ( sha4_context *  ctx,
unsigned char *  key,
int  keylen,
int  is384 
)

SHA-512 HMAC context setup.

Parameters:
ctx HMAC context to be initialized
is384 0 = use SHA512, 1 = use SHA384
key HMAC secret key
keylen length of the HMAC key

Definition at line 359 of file sha4.c.

References sha4_context::ipad, sha4_context::opad, sha4(), sha4_starts(), and sha4_update().

Referenced by sha4_hmac(), and sha4_self_test().

void sha4_hmac_update ( sha4_context *  ctx,
unsigned char *  input,
int  ilen 
)

SHA-512 HMAC process buffer.

Parameters:
ctx HMAC context
input buffer holding the data
ilen length of the input data

Definition at line 390 of file sha4.c.

References sha4_update().

Referenced by sha4_hmac(), and sha4_self_test().

static void sha4_process ( sha4_context *  ctx,
unsigned char  data[128] 
) [static]

Definition at line 149 of file sha4.c.

References F, GET_UINT64_BE, int64, K, P, S0, S1, and sha4_context::state.

Referenced by sha4_update().

int sha4_self_test ( int  verbose  ) 

Checkup routine.

Returns:
0 if successful, or 1 if the test failed

Definition at line 654 of file sha4.c.

References buf, sha4_finish(), sha4_hmac_finish(), sha4_hmac_starts(), sha4_hmac_test_buf, sha4_hmac_test_buflen, sha4_hmac_test_key, sha4_hmac_test_keylen, sha4_hmac_test_sum, sha4_hmac_update(), sha4_starts(), sha4_test_buf, sha4_test_buflen, sha4_test_sum, and sha4_update().

Referenced by main().

void sha4_starts ( sha4_context *  ctx,
int  is384 
)

SHA-512 context setup.

Parameters:
ctx context to be initialized
is384 0 = use SHA512, 1 = use SHA384

Definition at line 116 of file sha4.c.

References sha4_context::is384, sha4_context::state, sha4_context::total, and UL64.

Referenced by sha4(), sha4_file(), sha4_hmac_finish(), sha4_hmac_starts(), and sha4_self_test().

void sha4_update ( sha4_context *  ctx,
unsigned char *  input,
int  ilen 
)

SHA-512 process buffer.

Parameters:
ctx SHA-512 context
input buffer holding the data
ilen length of the input data

Definition at line 221 of file sha4.c.

References sha4_context::buffer, int, int64, sha4_process(), and sha4_context::total.

Referenced by sha4(), sha4_file(), sha4_finish(), sha4_hmac_finish(), sha4_hmac_starts(), sha4_hmac_update(), and sha4_self_test().

Variable Documentation

const unsigned int64 K[80] [static]

Definition at line 69 of file sha4.c.

unsigned char sha4_hmac_test_buf[7][153] [static]
Initial value:
{
    { "Hi There" },
    { "what do ya want for nothing?" },
    { "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD"
      "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD"
      "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD"
      "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD"
      "\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD\xDD" },
    { "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD"
      "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD"
      "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD"
      "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD"
      "\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD\xCD" },
    { "Test With Truncation" },
    { "Test Using Larger Than Block-Size Key - Hash Key First" },
    { "This is a test using a larger than block-size key "
      "and a larger than block-size data. The key needs to "
      "be hashed before being used by the HMAC algorithm." }
}

Definition at line 526 of file sha4.c.

Referenced by sha4_self_test().

const int sha4_hmac_test_buflen[7] [static]
Initial value:
{
    8, 28, 50, 50, 20, 54, 152
}

Definition at line 547 of file sha4.c.

Referenced by sha4_self_test().

unsigned char sha4_hmac_test_key[7][26] [static]
Initial value:
{
    { "\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B\x0B"
      "\x0B\x0B\x0B\x0B" },
    { "Jefe" },
    { "\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA"
      "\xAA\xAA\xAA\xAA" },
    { "\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F\x10"
      "\x11\x12\x13\x14\x15\x16\x17\x18\x19" },
    { "\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C\x0C"
      "\x0C\x0C\x0C\x0C" },
    { "" }, 
    { "" }
}

Definition at line 506 of file sha4.c.

Referenced by sha4_self_test().

const int sha4_hmac_test_keylen[7] [static]
Initial value:
{
    20, 4, 20, 25, 20, 131, 131
}

Definition at line 521 of file sha4.c.

Referenced by sha4_self_test().

const unsigned char sha4_hmac_test_sum[14][64] [static]

Definition at line 552 of file sha4.c.

Referenced by sha4_self_test().

const unsigned char sha4_padding[128] [static]
Initial value:
{
 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
}

Definition at line 261 of file sha4.c.

Referenced by sha4_finish().

unsigned char sha4_test_buf[3][113] [static]
Initial value:
 
{
    { "abc" },
    { "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn"
      "hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu" },
    { "" }
}

Definition at line 437 of file sha4.c.

Referenced by sha4_self_test().

const int sha4_test_buflen[3] [static]
Initial value:
{
    3, 112, 1000
}

Definition at line 445 of file sha4.c.

Referenced by sha4_self_test().

const unsigned char sha4_test_sum[6][64] [static]

Definition at line 450 of file sha4.c.

Referenced by sha4_self_test().

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