Refactored ksecprintf -> secprintf. Secure code is now all in common libtest161.
This library gets linked in by default in userland, and the common files are included in the kernel.
This commit is contained in:
Scott Haseley
File diff suppressed because it is too large
Load Diff
@@ -1,176 +0,0 @@
|
||||
|
||||
// Beware, this code is shared between the kernel and userspace.
|
||||
|
||||
#ifdef _KERNEL
|
||||
#include <types.h>
|
||||
#include <lib.h>
|
||||
#include <kern/errno.h>
|
||||
#else
|
||||
#include <string.h>
|
||||
#include <stdlib.h>
|
||||
#include <errno.h>
|
||||
#endif
|
||||
|
||||
#include <kern/secure.h>
|
||||
#include "sha256.h"
|
||||
|
||||
// The full length (with null) of the hex string of a byte array
|
||||
#define HEXLEN(a) 2*a+1
|
||||
|
||||
#define SHA256_BLOCK_SIZE 64
|
||||
#define SHA256_OUTPUT_SIZE 32
|
||||
|
||||
// Keep this divisible by 4, or else change make_salt()
|
||||
#define SALT_BYTES 8
|
||||
|
||||
// inner and outer padding for HMAC.
|
||||
static const unsigned char ipad[SHA256_BLOCK_SIZE] = { [0 ... SHA256_BLOCK_SIZE-1] = 0x36 };
|
||||
static const unsigned char opad[SHA256_BLOCK_SIZE] = { [0 ... SHA256_BLOCK_SIZE-1] = 0x5c };
|
||||
|
||||
static void * _alloc(size_t size)
|
||||
{
|
||||
#ifdef _KERNEL
|
||||
return kmalloc(size);
|
||||
#else
|
||||
return malloc(size);
|
||||
#endif
|
||||
}
|
||||
|
||||
static void _free(void *ptr)
|
||||
{
|
||||
#ifdef _KERNEL
|
||||
kfree(ptr);
|
||||
#else
|
||||
free(ptr);
|
||||
#endif
|
||||
}
|
||||
|
||||
/*
|
||||
* hamc_sha256 follows FIPS 198-1 HMAC using sha256.
|
||||
* See http://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.180-4.pdf for details.
|
||||
*/
|
||||
static int hmac_sha256(const char *msg, size_t msg_len, const char *key, size_t key_len,
|
||||
unsigned char output[SHA256_OUTPUT_SIZE])
|
||||
{
|
||||
// We use a total of 320 bytes of array data on the stack
|
||||
unsigned char k0[SHA256_BLOCK_SIZE];
|
||||
|
||||
// Steps 1-3. Anything less than 64 bytes gets 0s appended.
|
||||
memset(k0, 0, SHA256_BLOCK_SIZE);
|
||||
|
||||
if (key_len <= SHA256_BLOCK_SIZE) {
|
||||
memcpy(k0, key, key_len);
|
||||
} else {
|
||||
mbedtls_sha256((unsigned char *)key, key_len, k0, 0);
|
||||
}
|
||||
|
||||
// Steps 4 and 7.
|
||||
unsigned char k_ipad[SHA256_BLOCK_SIZE];
|
||||
unsigned char k_opad[SHA256_BLOCK_SIZE];
|
||||
|
||||
int i;
|
||||
for (i = 0; i < SHA256_BLOCK_SIZE; i++) {
|
||||
k_ipad[i] = k0[i] ^ ipad[i];
|
||||
k_opad[i] = k0[i] ^ opad[i];
|
||||
}
|
||||
|
||||
// Step 5 (K0 xor ipad) || msg
|
||||
// We have no idea how big the message is so we allocate this on the heap.
|
||||
unsigned char *data = (unsigned char *)_alloc(msg_len + SHA256_BLOCK_SIZE);
|
||||
if (!data)
|
||||
return ENOMEM;
|
||||
|
||||
memcpy(data, k_ipad, SHA256_BLOCK_SIZE);
|
||||
memcpy(data+SHA256_BLOCK_SIZE, msg, msg_len);
|
||||
|
||||
// Step6: H((k0 xor ipad) || msg)
|
||||
unsigned char h1[SHA256_OUTPUT_SIZE];
|
||||
mbedtls_sha256(data, msg_len + SHA256_BLOCK_SIZE, h1, 0);
|
||||
_free(data);
|
||||
|
||||
// Step 8: (k0 xor opad) || H((k0 xor ipad) || msg)
|
||||
unsigned char inner[SHA256_OUTPUT_SIZE + SHA256_BLOCK_SIZE];
|
||||
memcpy(inner, k_opad, SHA256_BLOCK_SIZE);
|
||||
memcpy(inner + SHA256_BLOCK_SIZE, h1, SHA256_OUTPUT_SIZE);
|
||||
|
||||
// Step 9: Finally, H((k0 xor opad) || H((k0 xor ipad) || msg))
|
||||
mbedtls_sha256(inner, SHA256_OUTPUT_SIZE + SHA256_BLOCK_SIZE, output, 0);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static inline char to_hex(int n)
|
||||
{
|
||||
return n < 10 ? '0'+n : 'a' + (n-10);
|
||||
}
|
||||
|
||||
static void array_to_hex(unsigned char *a, size_t len, char *res)
|
||||
{
|
||||
size_t i, j;
|
||||
j = 0;
|
||||
for (i = 0; i < len; i++) {
|
||||
res[j++] = to_hex(a[i] >> 4);
|
||||
res[j++] = to_hex(a[i] & 0xF);
|
||||
}
|
||||
res[j] = '\0';
|
||||
}
|
||||
|
||||
static void make_salt(char *salt_str)
|
||||
{
|
||||
// Compute salt value
|
||||
uint32_t salt[SALT_BYTES/sizeof(uint32_t)];
|
||||
|
||||
size_t i;
|
||||
for (i = 0; i < SALT_BYTES/sizeof(uint32_t); i++)
|
||||
{
|
||||
salt[i] = random();
|
||||
}
|
||||
|
||||
// Convert to hex string
|
||||
array_to_hex((unsigned char *)salt, SALT_BYTES, salt_str);
|
||||
}
|
||||
|
||||
int hmac(const char *msg, size_t msg_len, const char *key, size_t key_len,
|
||||
char **hash_str)
|
||||
{
|
||||
*hash_str = _alloc(HEXLEN(SHA256_OUTPUT_SIZE));
|
||||
|
||||
if (!(*hash_str))
|
||||
return ENOMEM;
|
||||
|
||||
// Hash it
|
||||
unsigned char hash[SHA256_OUTPUT_SIZE];
|
||||
int res = hmac_sha256(msg, msg_len, key, key_len, hash);
|
||||
if (res)
|
||||
return res;
|
||||
|
||||
// Convert to hex string
|
||||
array_to_hex(hash, SHA256_OUTPUT_SIZE, *hash_str);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int hmac_salted(const char *msg, size_t msg_len, const char *key, size_t key_len,
|
||||
char **hash_str, char **salt_str)
|
||||
{
|
||||
*salt_str = _alloc(HEXLEN(SALT_BYTES));
|
||||
|
||||
if (!(*salt_str))
|
||||
return ENOMEM;
|
||||
|
||||
// Create the salt value
|
||||
make_salt(*salt_str);
|
||||
|
||||
// Concatenate the key and salt, with the resulting string being null-terminated
|
||||
size_t key2_len = key_len + HEXLEN(SALT_BYTES)-1;
|
||||
char *key2 = (char *)_alloc(key2_len+1);
|
||||
if (!key2)
|
||||
return ENOMEM;
|
||||
|
||||
strcpy(key2, key);
|
||||
strcpy(key2+key_len, *salt_str);
|
||||
key2[key2_len] = '\0';
|
||||
|
||||
// Hash it
|
||||
return hmac(msg, msg_len, key2, key2_len, hash_str);
|
||||
}
|
||||
@@ -1,16 +0,0 @@
|
||||
#ifndef _SECURE_H
|
||||
#define _SECURE_H
|
||||
|
||||
#define SHA256_BLOCK_SIZE 64
|
||||
#define SHA256_OUTPUT_SIZE 32
|
||||
|
||||
#define TOHEX(n) n < 10 ? '0'+n : 'a' + (n-10)
|
||||
|
||||
// Compute the hex string from SHA256 hash output
|
||||
void hex_from_hash(unsigned char hash[SHA256_OUTPUT_SIZE], char res[SHA256_OUTPUT_SIZE*2 + 1]);
|
||||
|
||||
// Compute the FIPS 198-1 complient HMAC of msg using SHA256
|
||||
void hmac_sha256(const char *msg, size_t msg_len, char *key, size_t key_len,
|
||||
unsigned char output[SHA256_OUTPUT_SIZE]);
|
||||
|
||||
#endif //_SECURE_H
|
||||
@@ -1,451 +0,0 @@
|
||||
/*
|
||||
* FIPS-180-2 compliant SHA-256 implementation
|
||||
*
|
||||
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
|
||||
* SPDX-License-Identifier: Apache-2.0
|
||||
*
|
||||
* Licensed under the Apache License, Version 2.0 (the "License"); you may
|
||||
* not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||||
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*
|
||||
* This file is part of mbed TLS (https://tls.mbed.org)
|
||||
*/
|
||||
/*
|
||||
* The SHA-256 Secure Hash Standard was published by NIST in 2002.
|
||||
*
|
||||
* http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf
|
||||
*/
|
||||
|
||||
#if !defined(MBEDTLS_CONFIG_FILE)
|
||||
#include "config.h"
|
||||
#else
|
||||
#include MBEDTLS_CONFIG_FILE
|
||||
#endif
|
||||
|
||||
#if defined(MBEDTLS_SHA256_C)
|
||||
|
||||
#include "sha256.h"
|
||||
|
||||
#ifdef _KERNEL
|
||||
#include <types.h>
|
||||
#include <lib.h>
|
||||
#else
|
||||
#include <types/size_t.h>
|
||||
#include <string.h>
|
||||
#endif // _KERNEL
|
||||
|
||||
#if defined(MBEDTLS_SELF_TEST)
|
||||
#if defined(MBEDTLS_PLATFORM_C)
|
||||
#include "platform.h"
|
||||
#else
|
||||
#include <stdio.h>
|
||||
#define mbedtls_printf printf
|
||||
#endif /* MBEDTLS_PLATFORM_C */
|
||||
#endif /* MBEDTLS_SELF_TEST */
|
||||
|
||||
#if !defined(MBEDTLS_SHA256_ALT)
|
||||
|
||||
/* Implementation that should never be optimized out by the compiler */
|
||||
static void mbedtls_zeroize( void *v, size_t n ) {
|
||||
volatile unsigned char *p = v; while( n-- ) *p++ = 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* 32-bit integer manipulation macros (big endian)
|
||||
*/
|
||||
#ifndef GET_UINT32_BE
|
||||
#define GET_UINT32_BE(n,b,i) \
|
||||
do { \
|
||||
(n) = ( (uint32_t) (b)[(i) ] << 24 ) \
|
||||
| ( (uint32_t) (b)[(i) + 1] << 16 ) \
|
||||
| ( (uint32_t) (b)[(i) + 2] << 8 ) \
|
||||
| ( (uint32_t) (b)[(i) + 3] ); \
|
||||
} while( 0 )
|
||||
#endif
|
||||
|
||||
#ifndef PUT_UINT32_BE
|
||||
#define PUT_UINT32_BE(n,b,i) \
|
||||
do { \
|
||||
(b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
|
||||
(b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
|
||||
(b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
|
||||
(b)[(i) + 3] = (unsigned char) ( (n) ); \
|
||||
} while( 0 )
|
||||
#endif
|
||||
|
||||
void mbedtls_sha256_init( mbedtls_sha256_context *ctx )
|
||||
{
|
||||
memset( ctx, 0, sizeof( mbedtls_sha256_context ) );
|
||||
}
|
||||
|
||||
void mbedtls_sha256_free( mbedtls_sha256_context *ctx )
|
||||
{
|
||||
if( ctx == NULL )
|
||||
return;
|
||||
|
||||
mbedtls_zeroize( ctx, sizeof( mbedtls_sha256_context ) );
|
||||
}
|
||||
|
||||
void mbedtls_sha256_clone( mbedtls_sha256_context *dst,
|
||||
const mbedtls_sha256_context *src )
|
||||
{
|
||||
*dst = *src;
|
||||
}
|
||||
|
||||
/*
|
||||
* SHA-256 context setup
|
||||
*/
|
||||
void mbedtls_sha256_starts( mbedtls_sha256_context *ctx, int is224 )
|
||||
{
|
||||
ctx->total[0] = 0;
|
||||
ctx->total[1] = 0;
|
||||
|
||||
if( is224 == 0 )
|
||||
{
|
||||
/* SHA-256 */
|
||||
ctx->state[0] = 0x6A09E667;
|
||||
ctx->state[1] = 0xBB67AE85;
|
||||
ctx->state[2] = 0x3C6EF372;
|
||||
ctx->state[3] = 0xA54FF53A;
|
||||
ctx->state[4] = 0x510E527F;
|
||||
ctx->state[5] = 0x9B05688C;
|
||||
ctx->state[6] = 0x1F83D9AB;
|
||||
ctx->state[7] = 0x5BE0CD19;
|
||||
}
|
||||
else
|
||||
{
|
||||
/* SHA-224 */
|
||||
ctx->state[0] = 0xC1059ED8;
|
||||
ctx->state[1] = 0x367CD507;
|
||||
ctx->state[2] = 0x3070DD17;
|
||||
ctx->state[3] = 0xF70E5939;
|
||||
ctx->state[4] = 0xFFC00B31;
|
||||
ctx->state[5] = 0x68581511;
|
||||
ctx->state[6] = 0x64F98FA7;
|
||||
ctx->state[7] = 0xBEFA4FA4;
|
||||
}
|
||||
|
||||
ctx->is224 = is224;
|
||||
}
|
||||
|
||||
#if !defined(MBEDTLS_SHA256_PROCESS_ALT)
|
||||
static const uint32_t K[] =
|
||||
{
|
||||
0x428A2F98, 0x71374491, 0xB5C0FBCF, 0xE9B5DBA5,
|
||||
0x3956C25B, 0x59F111F1, 0x923F82A4, 0xAB1C5ED5,
|
||||
0xD807AA98, 0x12835B01, 0x243185BE, 0x550C7DC3,
|
||||
0x72BE5D74, 0x80DEB1FE, 0x9BDC06A7, 0xC19BF174,
|
||||
0xE49B69C1, 0xEFBE4786, 0x0FC19DC6, 0x240CA1CC,
|
||||
0x2DE92C6F, 0x4A7484AA, 0x5CB0A9DC, 0x76F988DA,
|
||||
0x983E5152, 0xA831C66D, 0xB00327C8, 0xBF597FC7,
|
||||
0xC6E00BF3, 0xD5A79147, 0x06CA6351, 0x14292967,
|
||||
0x27B70A85, 0x2E1B2138, 0x4D2C6DFC, 0x53380D13,
|
||||
0x650A7354, 0x766A0ABB, 0x81C2C92E, 0x92722C85,
|
||||
0xA2BFE8A1, 0xA81A664B, 0xC24B8B70, 0xC76C51A3,
|
||||
0xD192E819, 0xD6990624, 0xF40E3585, 0x106AA070,
|
||||
0x19A4C116, 0x1E376C08, 0x2748774C, 0x34B0BCB5,
|
||||
0x391C0CB3, 0x4ED8AA4A, 0x5B9CCA4F, 0x682E6FF3,
|
||||
0x748F82EE, 0x78A5636F, 0x84C87814, 0x8CC70208,
|
||||
0x90BEFFFA, 0xA4506CEB, 0xBEF9A3F7, 0xC67178F2,
|
||||
};
|
||||
|
||||
#define SHR(x,n) ((x & 0xFFFFFFFF) >> n)
|
||||
#define ROTR(x,n) (SHR(x,n) | (x << (32 - n)))
|
||||
|
||||
#define S0(x) (ROTR(x, 7) ^ ROTR(x,18) ^ SHR(x, 3))
|
||||
#define S1(x) (ROTR(x,17) ^ ROTR(x,19) ^ SHR(x,10))
|
||||
|
||||
#define S2(x) (ROTR(x, 2) ^ ROTR(x,13) ^ ROTR(x,22))
|
||||
#define S3(x) (ROTR(x, 6) ^ ROTR(x,11) ^ ROTR(x,25))
|
||||
|
||||
#define F0(x,y,z) ((x & y) | (z & (x | y)))
|
||||
#define F1(x,y,z) (z ^ (x & (y ^ z)))
|
||||
|
||||
#define R(t) \
|
||||
( \
|
||||
W[t] = S1(W[t - 2]) + W[t - 7] + \
|
||||
S0(W[t - 15]) + W[t - 16] \
|
||||
)
|
||||
|
||||
#define P(a,b,c,d,e,f,g,h,x,K) \
|
||||
{ \
|
||||
temp1 = h + S3(e) + F1(e,f,g) + K + x; \
|
||||
temp2 = S2(a) + F0(a,b,c); \
|
||||
d += temp1; h = temp1 + temp2; \
|
||||
}
|
||||
|
||||
void mbedtls_sha256_process( mbedtls_sha256_context *ctx, const unsigned char data[64] )
|
||||
{
|
||||
uint32_t temp1, temp2, W[64];
|
||||
uint32_t A[8];
|
||||
unsigned int i;
|
||||
|
||||
for( i = 0; i < 8; i++ )
|
||||
A[i] = ctx->state[i];
|
||||
|
||||
#if defined(MBEDTLS_SHA256_SMALLER)
|
||||
for( i = 0; i < 64; i++ )
|
||||
{
|
||||
if( i < 16 )
|
||||
GET_UINT32_BE( W[i], data, 4 * i );
|
||||
else
|
||||
R( i );
|
||||
|
||||
P( A[0], A[1], A[2], A[3], A[4], A[5], A[6], A[7], W[i], K[i] );
|
||||
|
||||
temp1 = A[7]; A[7] = A[6]; A[6] = A[5]; A[5] = A[4]; A[4] = A[3];
|
||||
A[3] = A[2]; A[2] = A[1]; A[1] = A[0]; A[0] = temp1;
|
||||
}
|
||||
#else /* MBEDTLS_SHA256_SMALLER */
|
||||
for( i = 0; i < 16; i++ )
|
||||
GET_UINT32_BE( W[i], data, 4 * i );
|
||||
|
||||
for( i = 0; i < 16; i += 8 )
|
||||
{
|
||||
P( A[0], A[1], A[2], A[3], A[4], A[5], A[6], A[7], W[i+0], K[i+0] );
|
||||
P( A[7], A[0], A[1], A[2], A[3], A[4], A[5], A[6], W[i+1], K[i+1] );
|
||||
P( A[6], A[7], A[0], A[1], A[2], A[3], A[4], A[5], W[i+2], K[i+2] );
|
||||
P( A[5], A[6], A[7], A[0], A[1], A[2], A[3], A[4], W[i+3], K[i+3] );
|
||||
P( A[4], A[5], A[6], A[7], A[0], A[1], A[2], A[3], W[i+4], K[i+4] );
|
||||
P( A[3], A[4], A[5], A[6], A[7], A[0], A[1], A[2], W[i+5], K[i+5] );
|
||||
P( A[2], A[3], A[4], A[5], A[6], A[7], A[0], A[1], W[i+6], K[i+6] );
|
||||
P( A[1], A[2], A[3], A[4], A[5], A[6], A[7], A[0], W[i+7], K[i+7] );
|
||||
}
|
||||
|
||||
for( i = 16; i < 64; i += 8 )
|
||||
{
|
||||
P( A[0], A[1], A[2], A[3], A[4], A[5], A[6], A[7], R(i+0), K[i+0] );
|
||||
P( A[7], A[0], A[1], A[2], A[3], A[4], A[5], A[6], R(i+1), K[i+1] );
|
||||
P( A[6], A[7], A[0], A[1], A[2], A[3], A[4], A[5], R(i+2), K[i+2] );
|
||||
P( A[5], A[6], A[7], A[0], A[1], A[2], A[3], A[4], R(i+3), K[i+3] );
|
||||
P( A[4], A[5], A[6], A[7], A[0], A[1], A[2], A[3], R(i+4), K[i+4] );
|
||||
P( A[3], A[4], A[5], A[6], A[7], A[0], A[1], A[2], R(i+5), K[i+5] );
|
||||
P( A[2], A[3], A[4], A[5], A[6], A[7], A[0], A[1], R(i+6), K[i+6] );
|
||||
P( A[1], A[2], A[3], A[4], A[5], A[6], A[7], A[0], R(i+7), K[i+7] );
|
||||
}
|
||||
#endif /* MBEDTLS_SHA256_SMALLER */
|
||||
|
||||
for( i = 0; i < 8; i++ )
|
||||
ctx->state[i] += A[i];
|
||||
}
|
||||
#endif /* !MBEDTLS_SHA256_PROCESS_ALT */
|
||||
|
||||
/*
|
||||
* SHA-256 process buffer
|
||||
*/
|
||||
void mbedtls_sha256_update( mbedtls_sha256_context *ctx, const unsigned char *input,
|
||||
size_t ilen )
|
||||
{
|
||||
size_t fill;
|
||||
uint32_t left;
|
||||
|
||||
if( ilen == 0 )
|
||||
return;
|
||||
|
||||
left = ctx->total[0] & 0x3F;
|
||||
fill = 64 - left;
|
||||
|
||||
ctx->total[0] += (uint32_t) ilen;
|
||||
ctx->total[0] &= 0xFFFFFFFF;
|
||||
|
||||
if( ctx->total[0] < (uint32_t) ilen )
|
||||
ctx->total[1]++;
|
||||
|
||||
if( left && ilen >= fill )
|
||||
{
|
||||
memcpy( (void *) (ctx->buffer + left), input, fill );
|
||||
mbedtls_sha256_process( ctx, ctx->buffer );
|
||||
input += fill;
|
||||
ilen -= fill;
|
||||
left = 0;
|
||||
}
|
||||
|
||||
while( ilen >= 64 )
|
||||
{
|
||||
mbedtls_sha256_process( ctx, input );
|
||||
input += 64;
|
||||
ilen -= 64;
|
||||
}
|
||||
|
||||
if( ilen > 0 )
|
||||
memcpy( (void *) (ctx->buffer + left), input, ilen );
|
||||
}
|
||||
|
||||
static const unsigned char sha256_padding[64] =
|
||||
{
|
||||
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
|
||||
};
|
||||
|
||||
/*
|
||||
* SHA-256 final digest
|
||||
*/
|
||||
void mbedtls_sha256_finish( mbedtls_sha256_context *ctx, unsigned char output[32] )
|
||||
{
|
||||
uint32_t last, padn;
|
||||
uint32_t high, low;
|
||||
unsigned char msglen[8];
|
||||
|
||||
high = ( ctx->total[0] >> 29 )
|
||||
| ( ctx->total[1] << 3 );
|
||||
low = ( ctx->total[0] << 3 );
|
||||
|
||||
PUT_UINT32_BE( high, msglen, 0 );
|
||||
PUT_UINT32_BE( low, msglen, 4 );
|
||||
|
||||
last = ctx->total[0] & 0x3F;
|
||||
padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last );
|
||||
|
||||
mbedtls_sha256_update( ctx, sha256_padding, padn );
|
||||
mbedtls_sha256_update( ctx, msglen, 8 );
|
||||
|
||||
PUT_UINT32_BE( ctx->state[0], output, 0 );
|
||||
PUT_UINT32_BE( ctx->state[1], output, 4 );
|
||||
PUT_UINT32_BE( ctx->state[2], output, 8 );
|
||||
PUT_UINT32_BE( ctx->state[3], output, 12 );
|
||||
PUT_UINT32_BE( ctx->state[4], output, 16 );
|
||||
PUT_UINT32_BE( ctx->state[5], output, 20 );
|
||||
PUT_UINT32_BE( ctx->state[6], output, 24 );
|
||||
|
||||
if( ctx->is224 == 0 )
|
||||
PUT_UINT32_BE( ctx->state[7], output, 28 );
|
||||
}
|
||||
|
||||
#endif /* !MBEDTLS_SHA256_ALT */
|
||||
|
||||
/*
|
||||
* output = SHA-256( input buffer )
|
||||
*/
|
||||
void mbedtls_sha256( const unsigned char *input, size_t ilen,
|
||||
unsigned char output[32], int is224 )
|
||||
{
|
||||
mbedtls_sha256_context ctx;
|
||||
|
||||
mbedtls_sha256_init( &ctx );
|
||||
mbedtls_sha256_starts( &ctx, is224 );
|
||||
mbedtls_sha256_update( &ctx, input, ilen );
|
||||
mbedtls_sha256_finish( &ctx, output );
|
||||
mbedtls_sha256_free( &ctx );
|
||||
}
|
||||
|
||||
#if defined(MBEDTLS_SELF_TEST)
|
||||
/*
|
||||
* FIPS-180-2 test vectors
|
||||
*/
|
||||
static const unsigned char sha256_test_buf[3][57] =
|
||||
{
|
||||
{ "abc" },
|
||||
{ "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" },
|
||||
{ "" }
|
||||
};
|
||||
|
||||
static const int sha256_test_buflen[3] =
|
||||
{
|
||||
3, 56, 1000
|
||||
};
|
||||
|
||||
static const unsigned char sha256_test_sum[6][32] =
|
||||
{
|
||||
/*
|
||||
* SHA-224 test vectors
|
||||
*/
|
||||
{ 0x23, 0x09, 0x7D, 0x22, 0x34, 0x05, 0xD8, 0x22,
|
||||
0x86, 0x42, 0xA4, 0x77, 0xBD, 0xA2, 0x55, 0xB3,
|
||||
0x2A, 0xAD, 0xBC, 0xE4, 0xBD, 0xA0, 0xB3, 0xF7,
|
||||
0xE3, 0x6C, 0x9D, 0xA7 },
|
||||
{ 0x75, 0x38, 0x8B, 0x16, 0x51, 0x27, 0x76, 0xCC,
|
||||
0x5D, 0xBA, 0x5D, 0xA1, 0xFD, 0x89, 0x01, 0x50,
|
||||
0xB0, 0xC6, 0x45, 0x5C, 0xB4, 0xF5, 0x8B, 0x19,
|
||||
0x52, 0x52, 0x25, 0x25 },
|
||||
{ 0x20, 0x79, 0x46, 0x55, 0x98, 0x0C, 0x91, 0xD8,
|
||||
0xBB, 0xB4, 0xC1, 0xEA, 0x97, 0x61, 0x8A, 0x4B,
|
||||
0xF0, 0x3F, 0x42, 0x58, 0x19, 0x48, 0xB2, 0xEE,
|
||||
0x4E, 0xE7, 0xAD, 0x67 },
|
||||
|
||||
/*
|
||||
* SHA-256 test vectors
|
||||
*/
|
||||
{ 0xBA, 0x78, 0x16, 0xBF, 0x8F, 0x01, 0xCF, 0xEA,
|
||||
0x41, 0x41, 0x40, 0xDE, 0x5D, 0xAE, 0x22, 0x23,
|
||||
0xB0, 0x03, 0x61, 0xA3, 0x96, 0x17, 0x7A, 0x9C,
|
||||
0xB4, 0x10, 0xFF, 0x61, 0xF2, 0x00, 0x15, 0xAD },
|
||||
{ 0x24, 0x8D, 0x6A, 0x61, 0xD2, 0x06, 0x38, 0xB8,
|
||||
0xE5, 0xC0, 0x26, 0x93, 0x0C, 0x3E, 0x60, 0x39,
|
||||
0xA3, 0x3C, 0xE4, 0x59, 0x64, 0xFF, 0x21, 0x67,
|
||||
0xF6, 0xEC, 0xED, 0xD4, 0x19, 0xDB, 0x06, 0xC1 },
|
||||
{ 0xCD, 0xC7, 0x6E, 0x5C, 0x99, 0x14, 0xFB, 0x92,
|
||||
0x81, 0xA1, 0xC7, 0xE2, 0x84, 0xD7, 0x3E, 0x67,
|
||||
0xF1, 0x80, 0x9A, 0x48, 0xA4, 0x97, 0x20, 0x0E,
|
||||
0x04, 0x6D, 0x39, 0xCC, 0xC7, 0x11, 0x2C, 0xD0 }
|
||||
};
|
||||
|
||||
/*
|
||||
* Checkup routine
|
||||
*/
|
||||
int mbedtls_sha256_self_test( int verbose )
|
||||
{
|
||||
int i, j, k, buflen, ret = 0;
|
||||
unsigned char buf[1024];
|
||||
unsigned char sha256sum[32];
|
||||
mbedtls_sha256_context ctx;
|
||||
|
||||
mbedtls_sha256_init( &ctx );
|
||||
|
||||
for( i = 0; i < 6; i++ )
|
||||
{
|
||||
j = i % 3;
|
||||
k = i < 3;
|
||||
|
||||
if( verbose != 0 )
|
||||
mbedtls_printf( " SHA-%d test #%d: ", 256 - k * 32, j + 1 );
|
||||
|
||||
mbedtls_sha256_starts( &ctx, k );
|
||||
|
||||
if( j == 2 )
|
||||
{
|
||||
memset( buf, 'a', buflen = 1000 );
|
||||
|
||||
for( j = 0; j < 1000; j++ )
|
||||
mbedtls_sha256_update( &ctx, buf, buflen );
|
||||
}
|
||||
else
|
||||
mbedtls_sha256_update( &ctx, sha256_test_buf[j],
|
||||
sha256_test_buflen[j] );
|
||||
|
||||
mbedtls_sha256_finish( &ctx, sha256sum );
|
||||
|
||||
if( memcmp( sha256sum, sha256_test_sum[i], 32 - k * 4 ) != 0 )
|
||||
{
|
||||
if( verbose != 0 )
|
||||
mbedtls_printf( "failed\n" );
|
||||
|
||||
ret = 1;
|
||||
goto exit;
|
||||
}
|
||||
|
||||
if( verbose != 0 )
|
||||
mbedtls_printf( "passed\n" );
|
||||
}
|
||||
|
||||
if( verbose != 0 )
|
||||
mbedtls_printf( "\n" );
|
||||
|
||||
exit:
|
||||
mbedtls_sha256_free( &ctx );
|
||||
|
||||
return( ret );
|
||||
}
|
||||
|
||||
#endif /* MBEDTLS_SELF_TEST */
|
||||
|
||||
#endif /* MBEDTLS_SHA256_C */
|
||||
@@ -1,146 +0,0 @@
|
||||
/**
|
||||
* \file sha256.h
|
||||
*
|
||||
* \brief SHA-224 and SHA-256 cryptographic hash function
|
||||
*
|
||||
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
|
||||
* SPDX-License-Identifier: Apache-2.0
|
||||
*
|
||||
* Licensed under the Apache License, Version 2.0 (the "License"); you may
|
||||
* not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||||
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*
|
||||
* This file is part of mbed TLS (https://tls.mbed.org)
|
||||
*/
|
||||
#ifndef MBEDTLS_SHA256_H
|
||||
#define MBEDTLS_SHA256_H
|
||||
|
||||
#if !defined(MBEDTLS_CONFIG_FILE)
|
||||
#include "config.h"
|
||||
#else
|
||||
#include MBEDTLS_CONFIG_FILE
|
||||
#endif
|
||||
|
||||
#ifdef _KERNEL
|
||||
#include <types.h>
|
||||
#include <lib.h>
|
||||
#else
|
||||
#include <types/size_t.h>
|
||||
#include <stdint.h>
|
||||
#endif //_KERNEL
|
||||
|
||||
#if !defined(MBEDTLS_SHA256_ALT)
|
||||
// Regular implementation
|
||||
//
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/**
|
||||
* \brief SHA-256 context structure
|
||||
*/
|
||||
typedef struct
|
||||
{
|
||||
uint32_t total[2]; /*!< number of bytes processed */
|
||||
uint32_t state[8]; /*!< intermediate digest state */
|
||||
unsigned char buffer[64]; /*!< data block being processed */
|
||||
int is224; /*!< 0 => SHA-256, else SHA-224 */
|
||||
}
|
||||
mbedtls_sha256_context;
|
||||
|
||||
/**
|
||||
* \brief Initialize SHA-256 context
|
||||
*
|
||||
* \param ctx SHA-256 context to be initialized
|
||||
*/
|
||||
void mbedtls_sha256_init( mbedtls_sha256_context *ctx );
|
||||
|
||||
/**
|
||||
* \brief Clear SHA-256 context
|
||||
*
|
||||
* \param ctx SHA-256 context to be cleared
|
||||
*/
|
||||
void mbedtls_sha256_free( mbedtls_sha256_context *ctx );
|
||||
|
||||
/**
|
||||
* \brief Clone (the state of) a SHA-256 context
|
||||
*
|
||||
* \param dst The destination context
|
||||
* \param src The context to be cloned
|
||||
*/
|
||||
void mbedtls_sha256_clone( mbedtls_sha256_context *dst,
|
||||
const mbedtls_sha256_context *src );
|
||||
|
||||
/**
|
||||
* \brief SHA-256 context setup
|
||||
*
|
||||
* \param ctx context to be initialized
|
||||
* \param is224 0 = use SHA256, 1 = use SHA224
|
||||
*/
|
||||
void mbedtls_sha256_starts( mbedtls_sha256_context *ctx, int is224 );
|
||||
|
||||
/**
|
||||
* \brief SHA-256 process buffer
|
||||
*
|
||||
* \param ctx SHA-256 context
|
||||
* \param input buffer holding the data
|
||||
* \param ilen length of the input data
|
||||
*/
|
||||
void mbedtls_sha256_update( mbedtls_sha256_context *ctx, const unsigned char *input,
|
||||
size_t ilen );
|
||||
|
||||
/**
|
||||
* \brief SHA-256 final digest
|
||||
*
|
||||
* \param ctx SHA-256 context
|
||||
* \param output SHA-224/256 checksum result
|
||||
*/
|
||||
void mbedtls_sha256_finish( mbedtls_sha256_context *ctx, unsigned char output[32] );
|
||||
|
||||
/* Internal use */
|
||||
void mbedtls_sha256_process( mbedtls_sha256_context *ctx, const unsigned char data[64] );
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#else /* MBEDTLS_SHA256_ALT */
|
||||
#include "sha256_alt.h"
|
||||
#endif /* MBEDTLS_SHA256_ALT */
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/**
|
||||
* \brief Output = SHA-256( input buffer )
|
||||
*
|
||||
* \param input buffer holding the data
|
||||
* \param ilen length of the input data
|
||||
* \param output SHA-224/256 checksum result
|
||||
* \param is224 0 = use SHA256, 1 = use SHA224
|
||||
*/
|
||||
void mbedtls_sha256( const unsigned char *input, size_t ilen,
|
||||
unsigned char output[32], int is224 );
|
||||
|
||||
/**
|
||||
* \brief Checkup routine
|
||||
*
|
||||
* \return 0 if successful, or 1 if the test failed
|
||||
*/
|
||||
int mbedtls_sha256_self_test( int verbose );
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* mbedtls_sha256.h */
|
||||
Reference in New Issue
Block a user