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Test mbedtls_ctr_drbg_set_nonce_len

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Test mbedtls_ctr_drbg_set_nonce_len (good cases only, which is in
keeping with the coverage of other functions).
This commit is contained in:
Gilles Peskine 2019-10-22 19:14:26 +02:00
parent 4d2d4ff9b0
commit c949de06ec
2 changed files with 14 additions and 3 deletions
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10
tests/suites/test_suite_ctr_drbg.data
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@ -1070,8 +1070,14 @@ CTR_DRBG CAVS 14.3 (AES-128 use df,True,128,64,0,0) #0
depends_on:MBEDTLS_CTR_DRBG_USE_128_BIT_KEY
ctr_drbg_validate_pr:"d4f1f4ae08bcb3e1":"5d4041942bcf68864a4997d8171f1f9fef55a769b7eaf03fe082029bb32a2b9d8239e865c0a42e14b964b9c09de85a20":"":"":"4155320287eedcf7d484c2c2a1e2eb64b9c9ce77c87202a1ae1616c7a5cfd1c687c7a0bfcc85bda48fdd4629fd330c22d0a76076f88fc7cd04037ee06b7af602"
CTR_DRBG entropy usage
ctr_drbg_entropy_usage:
CTR_DRBG entropy usage (entropy_nonce_len=0 by default)
ctr_drbg_entropy_usage:-1
CTR_DRBG entropy usage (entropy_nonce_len=0)
ctr_drbg_entropy_usage:0
CTR_DRBG entropy usage (entropy_nonce_len=7)
ctr_drbg_entropy_usage:7
CTR_DRBG write/update seed file [#1]
ctr_drbg_seed_file:"data_files/ctr_drbg_seed":0

7
tests/suites/test_suite_ctr_drbg.function
View file

@ -190,7 +190,7 @@ void ctr_drbg_validate_reseed_first( data_t * add_init, data_t * entropy,
/* BEGIN_CASE */
void ctr_drbg_entropy_usage( )
void ctr_drbg_entropy_usage( int entropy_nonce_len )
{
unsigned char out[16];
unsigned char add[16];
@ -206,9 +206,14 @@ void ctr_drbg_entropy_usage( )
memset( out, 0, sizeof( out ) );
memset( add, 0, sizeof( add ) );
if( entropy_nonce_len >= 0 )
TEST_ASSERT( mbedtls_ctr_drbg_set_nonce_len( &ctx, entropy_nonce_len ) == 0 );
/* Init must use entropy */
TEST_ASSERT( mbedtls_ctr_drbg_seed( &ctx, mbedtls_test_entropy_func, entropy, NULL, 0 ) == 0 );
expected_idx += MBEDTLS_CTR_DRBG_ENTROPY_LEN;
if( entropy_nonce_len >= 0 )
expected_idx += entropy_nonce_len;
TEST_EQUAL( test_offset_idx, expected_idx );
/* By default, PR is off and reseed_interval is large,