/*
* MD5 context setup
*/
-void mbedtls_md5_starts( mbedtls_md5_context *ctx )
+int mbedtls_md5_starts_ret( mbedtls_md5_context *ctx )
{
ctx->total[0] = 0;
ctx->total[1] = 0;
ctx->state[1] = 0xEFCDAB89;
ctx->state[2] = 0x98BADCFE;
ctx->state[3] = 0x10325476;
+
+ return( 0 );
}
+#if !defined(MBEDTLS_DEPRECATED_REMOVED)
+void mbedtls_md5_starts( mbedtls_md5_context *ctx )
+{
+ mbedtls_md5_starts_ret( ctx );
+}
+#endif
+
#if !defined(MBEDTLS_MD5_PROCESS_ALT)
-void mbedtls_md5_process( mbedtls_md5_context *ctx, const unsigned char data[64] )
+int mbedtls_internal_md5_process( mbedtls_md5_context *ctx,
+ const unsigned char data[64] )
{
uint32_t X[16], A, B, C, D;
ctx->state[1] += B;
ctx->state[2] += C;
ctx->state[3] += D;
+
+ return( 0 );
+}
+
+#if !defined(MBEDTLS_DEPRECATED_REMOVED)
+void mbedtls_md5_process( mbedtls_md5_context *ctx,
+ const unsigned char data[64] )
+{
+ mbedtls_internal_md5_process( ctx, data );
}
+#endif
#endif /* !MBEDTLS_MD5_PROCESS_ALT */
/*
* MD5 process buffer
*/
-void mbedtls_md5_update( mbedtls_md5_context *ctx, const unsigned char *input, size_t ilen )
+int mbedtls_md5_update_ret( mbedtls_md5_context *ctx,
+ const unsigned char *input,
+ size_t ilen )
{
+ int ret;
size_t fill;
uint32_t left;
if( ilen == 0 )
- return;
+ return( 0 );
left = ctx->total[0] & 0x3F;
fill = 64 - left;
if( left && ilen >= fill )
{
memcpy( (void *) (ctx->buffer + left), input, fill );
- mbedtls_md5_process( ctx, ctx->buffer );
+ if( ( ret = mbedtls_internal_md5_process( ctx, ctx->buffer ) ) != 0 )
+ return( ret );
+
input += fill;
ilen -= fill;
left = 0;
while( ilen >= 64 )
{
- mbedtls_md5_process( ctx, input );
+ if( ( ret = mbedtls_internal_md5_process( ctx, input ) ) != 0 )
+ return( ret );
+
input += 64;
ilen -= 64;
}
{
memcpy( (void *) (ctx->buffer + left), input, ilen );
}
+
+ return( 0 );
}
-static const unsigned char md5_padding[64] =
+#if !defined(MBEDTLS_DEPRECATED_REMOVED)
+void mbedtls_md5_update( mbedtls_md5_context *ctx,
+ const unsigned char *input,
+ size_t ilen )
{
- 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
-};
+ mbedtls_md5_update_ret( ctx, input, ilen );
+}
+#endif
/*
* MD5 final digest
*/
-void mbedtls_md5_finish( mbedtls_md5_context *ctx, unsigned char output[16] )
+int mbedtls_md5_finish_ret( mbedtls_md5_context *ctx,
+ unsigned char output[16] )
{
- uint32_t last, padn;
+ int ret;
+ uint32_t used;
uint32_t high, low;
- unsigned char msglen[8];
+ /*
+ * Add padding: 0x80 then 0x00 until 8 bytes remain for the length
+ */
+ used = ctx->total[0] & 0x3F;
+
+ ctx->buffer[used++] = 0x80;
+
+ if( used <= 56 )
+ {
+ /* Enough room for padding + length in current block */
+ memset( ctx->buffer + used, 0, 56 - used );
+ }
+ else
+ {
+ /* We'll need an extra block */
+ memset( ctx->buffer + used, 0, 64 - used );
+
+ if( ( ret = mbedtls_internal_md5_process( ctx, ctx->buffer ) ) != 0 )
+ return( ret );
+
+ memset( ctx->buffer, 0, 56 );
+ }
+
+ /*
+ * Add message length
+ */
high = ( ctx->total[0] >> 29 )
| ( ctx->total[1] << 3 );
low = ( ctx->total[0] << 3 );
- PUT_UINT32_LE( low, msglen, 0 );
- PUT_UINT32_LE( high, msglen, 4 );
-
- last = ctx->total[0] & 0x3F;
- padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last );
+ PUT_UINT32_LE( low, ctx->buffer, 56 );
+ PUT_UINT32_LE( high, ctx->buffer, 60 );
- mbedtls_md5_update( ctx, md5_padding, padn );
- mbedtls_md5_update( ctx, msglen, 8 );
+ if( ( ret = mbedtls_internal_md5_process( ctx, ctx->buffer ) ) != 0 )
+ return( ret );
+ /*
+ * Output final state
+ */
PUT_UINT32_LE( ctx->state[0], output, 0 );
PUT_UINT32_LE( ctx->state[1], output, 4 );
PUT_UINT32_LE( ctx->state[2], output, 8 );
PUT_UINT32_LE( ctx->state[3], output, 12 );
+
+ return( 0 );
+}
+
+#if !defined(MBEDTLS_DEPRECATED_REMOVED)
+void mbedtls_md5_finish( mbedtls_md5_context *ctx,
+ unsigned char output[16] )
+{
+ mbedtls_md5_finish_ret( ctx, output );
}
+#endif
#endif /* !MBEDTLS_MD5_ALT */
/*
* output = MD5( input buffer )
*/
-void mbedtls_md5( const unsigned char *input, size_t ilen, unsigned char output[16] )
+int mbedtls_md5_ret( const unsigned char *input,
+ size_t ilen,
+ unsigned char output[16] )
{
+ int ret;
mbedtls_md5_context ctx;
mbedtls_md5_init( &ctx );
- mbedtls_md5_starts( &ctx );
- mbedtls_md5_update( &ctx, input, ilen );
- mbedtls_md5_finish( &ctx, output );
+
+ if( ( ret = mbedtls_md5_starts_ret( &ctx ) ) != 0 )
+ goto exit;
+
+ if( ( ret = mbedtls_md5_update_ret( &ctx, input, ilen ) ) != 0 )
+ goto exit;
+
+ if( ( ret = mbedtls_md5_finish_ret( &ctx, output ) ) != 0 )
+ goto exit;
+
+exit:
mbedtls_md5_free( &ctx );
+
+ return( ret );
+}
+
+#if !defined(MBEDTLS_DEPRECATED_REMOVED)
+void mbedtls_md5( const unsigned char *input,
+ size_t ilen,
+ unsigned char output[16] )
+{
+ mbedtls_md5_ret( input, ilen, output );
}
+#endif
#if defined(MBEDTLS_SELF_TEST)
/*
{ "message digest" },
{ "abcdefghijklmnopqrstuvwxyz" },
{ "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" },
- { "12345678901234567890123456789012345678901234567890123456789012" \
+ { "12345678901234567890123456789012345678901234567890123456789012"
"345678901234567890" }
};
-static const int md5_test_buflen[7] =
+static const size_t md5_test_buflen[7] =
{
0, 1, 3, 14, 26, 62, 80
};
*/
int mbedtls_md5_self_test( int verbose )
{
- int i;
+ int i, ret = 0;
unsigned char md5sum[16];
for( i = 0; i < 7; i++ )
if( verbose != 0 )
mbedtls_printf( " MD5 test #%d: ", i + 1 );
- mbedtls_md5( md5_test_buf[i], md5_test_buflen[i], md5sum );
+ ret = mbedtls_md5_ret( md5_test_buf[i], md5_test_buflen[i], md5sum );
+ if( ret != 0 )
+ goto fail;
if( memcmp( md5sum, md5_test_sum[i], 16 ) != 0 )
{
- if( verbose != 0 )
- mbedtls_printf( "failed\n" );
-
- return( 1 );
+ ret = 1;
+ goto fail;
}
if( verbose != 0 )
mbedtls_printf( "\n" );
return( 0 );
+
+fail:
+ if( verbose != 0 )
+ mbedtls_printf( "failed\n" );
+
+ return( ret );
}
#endif /* MBEDTLS_SELF_TEST */
projects / reactos.git / blobdiff