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Add _init() and _free() for cipher modules

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This commit is contained in:
Paul Bakker
2014-06-18 11:12:03 +02:00
parent 0464dd9357
commit c7ea99af4f
17 changed files with 375 additions and 61 deletions
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42
library/des.c
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@ -305,6 +305,32 @@ static const uint32_t RHs[16] =
#define SWAP(a,b) { uint32_t t = a; a = b; b = t; t = 0; }
void des_init( des_context *ctx )
{
memset( ctx, 0, sizeof( des_context ) );
}
void des_free( des_context *ctx )
{
if( ctx == NULL )
return;
polarssl_zeroize( ctx, sizeof( des_context ) );
}
void des3_init( des3_context *ctx )
{
memset( ctx, 0, sizeof( des3_context ) );
}
void des3_free( des3_context *ctx )
{
if( ctx == NULL )
return;
polarssl_zeroize( ctx, sizeof( des3_context ) );
}
static const unsigned char odd_parity_table[128] = { 1, 2, 4, 7, 8,
11, 13, 14, 16, 19, 21, 22, 25, 26, 28, 31, 32, 35, 37, 38, 41, 42, 44,
47, 49, 50, 52, 55, 56, 59, 61, 62, 64, 67, 69, 70, 73, 74, 76, 79, 81,
@ -839,7 +865,7 @@ static const unsigned char des3_test_cbc_enc[3][8] =
*/
int des_self_test( int verbose )
{
int i, j, u, v;
int i, j, u, v, ret = 0;
des_context ctx;
des3_context ctx3;
unsigned char buf[8];
@ -848,6 +874,8 @@ int des_self_test( int verbose )
unsigned char iv[8];
#endif
des_init( &ctx );
des3_init( &ctx3 );
/*
* ECB mode
*/
@ -909,7 +937,8 @@ int des_self_test( int verbose )
if( verbose != 0 )
polarssl_printf( "failed\n" );
return( 1 );
ret = 1;
goto exit;
}
if( verbose != 0 )
@ -1004,7 +1033,8 @@ int des_self_test( int verbose )
if( verbose != 0 )
polarssl_printf( "failed\n" );
return( 1 );
ret = 1;
goto exit;
}
if( verbose != 0 )
@ -1015,7 +1045,11 @@ int des_self_test( int verbose )
if( verbose != 0 )
polarssl_printf( "\n" );
return( 0 );
exit:
des_free( &ctx );
des3_free( &ctx3 );
return( ret );
}
#endif /* POLARSSL_SELF_TEST */