| /* BEGIN_HEADER */ |
| #include <polarssl/ctr_drbg.h> |
| |
| int test_offset; |
| int entropy_func( void *data, unsigned char *buf, size_t len ) |
| { |
| unsigned char *p = (unsigned char *) data; |
| memcpy( buf, p + test_offset, len ); |
| test_offset += 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 = 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 = 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 */ |