mbedtls/tests/suites/test_suite_ctr_drbg.function

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/* BEGIN_HEADER */
#include <polarssl/ctr_drbg.h>
int test_offset_idx;
int entropy_func( void *data, unsigned char *buf, size_t len )
{
unsigned char *p = (unsigned char *) data;
memcpy( buf, p + test_offset_idx, len );
test_offset_idx += 32;
return( 0 );
}
/* END_HEADER */
/* BEGIN_DEPENDENCIES
* depends_on:POLARSSL_CTR_DRBG_C
* END_DEPENDENCIES
*/
/* BEGIN_CASE */
void ctr_drbg_validate_pr( char *add_init_string, char *entropy_string,
char *add1_string, char *add2_string,
char *result_str )
{
unsigned char entropy[512];
unsigned char add_init[512];
unsigned char add1[512];
unsigned char add2[512];
ctr_drbg_context ctx;
unsigned char buf[512];
unsigned char output_str[512];
int add_init_len, add1_len, add2_len;
memset( output_str, 0, 512 );
unhexify( entropy, entropy_string );
add_init_len = unhexify( add_init, add_init_string );
add1_len = unhexify( add1, add1_string );
add2_len = unhexify( add2, add2_string );
test_offset_idx = 0;
TEST_ASSERT( ctr_drbg_init_entropy_len( &ctx, entropy_func, entropy, add_init, add_init_len, 32 ) == 0 );
ctr_drbg_set_prediction_resistance( &ctx, CTR_DRBG_PR_ON );
TEST_ASSERT( ctr_drbg_random_with_add( &ctx, buf, 16, add1, add1_len ) == 0 );
TEST_ASSERT( ctr_drbg_random_with_add( &ctx, buf, 16, add2, add2_len ) == 0 );
hexify( output_str, buf, 16 );
TEST_ASSERT( strcmp( (char *) output_str, result_str ) == 0 );
}
/* END_CASE */
/* BEGIN_CASE */
void ctr_drbg_validate_nopr( char *add_init_string, char *entropy_string,
char *add1_string, char *add_reseed_string,
char *add2_string, char *result_str )
{
unsigned char entropy[512];
unsigned char add_init[512];
unsigned char add1[512];
unsigned char add_reseed[512];
unsigned char add2[512];
ctr_drbg_context ctx;
unsigned char buf[512];
unsigned char output_str[512];
int add_init_len, add1_len, add_reseed_len, add2_len;
memset( output_str, 0, 512 );
unhexify( entropy, entropy_string );
add_init_len = unhexify( add_init, add_init_string );
add1_len = unhexify( add1, add1_string );
add_reseed_len = unhexify( add_reseed, add_reseed_string );
add2_len = unhexify( add2, add2_string );
test_offset_idx = 0;
TEST_ASSERT( ctr_drbg_init_entropy_len( &ctx, entropy_func, entropy, add_init, add_init_len, 32 ) == 0 );
TEST_ASSERT( ctr_drbg_random_with_add( &ctx, buf, 16, add1, add1_len ) == 0 );
TEST_ASSERT( ctr_drbg_reseed( &ctx, add_reseed, add_reseed_len ) == 0 );
TEST_ASSERT( ctr_drbg_random_with_add( &ctx, buf, 16, add2, add2_len ) == 0 );
hexify( output_str, buf, 16 );
TEST_ASSERT( strcmp( (char *) output_str, result_str ) == 0 );
}
/* END_CASE */
/* BEGIN_CASE depends_on:POLARSSL_SELF_TEST */
void ctr_drbg_selftest( )
{
TEST_ASSERT( ctr_drbg_self_test( 0 ) == 0 );
}
/* END_CASE */