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hkdf: Add negative tests

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Test for the expected bad input parameter error when given specific sets of
bad input parameters.
This commit is contained in:
Jaeden Amero 2018-05-23 19:44:26 +01:00
parent 3618962cab
commit 10e0e4d4ff
2 changed files with 75 additions and 0 deletions
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15
tests/suites/test_suite_hkdf.data
View File

@ -1,3 +1,18 @@
HKDF extract fails with hash_len of 0
test_hkdf_extract_ret:0:MBEDTLS_ERR_HKDF_BAD_INPUT_DATA
HKDF expand fails with NULL okm
test_hkdf_expand_ret:32:32:0:MBEDTLS_ERR_HKDF_BAD_INPUT_DATA
HKDF expand fails with hash_len of 0
test_hkdf_expand_ret:0:32:32:MBEDTLS_ERR_HKDF_BAD_INPUT_DATA
HKDF expand fails with prk_len < hash_len
test_hkdf_expand_ret:32:16:32:MBEDTLS_ERR_HKDF_BAD_INPUT_DATA
HKDF expand fails with okm_len / hash_len > 255
test_hkdf_expand_ret:32:32:8192:MBEDTLS_ERR_HKDF_BAD_INPUT_DATA
HKDF RFC5869 Test Vector #1 HKDF RFC5869 Test Vector #1
depends_on:MBEDTLS_SHA256_C depends_on:MBEDTLS_SHA256_C
test_hkdf:6:"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":"000102030405060708090a0b0c":"f0f1f2f3f4f5f6f7f8f9":"3cb25f25faacd57a90434f64d0362f2a2d2d0a90cf1a5a4c5db02d56ecc4c5bf34007208d5b887185865" test_hkdf:6:"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":"000102030405060708090a0b0c":"f0f1f2f3f4f5f6f7f8f9":"3cb25f25faacd57a90434f64d0362f2a2d2d0a90cf1a5a4c5db02d56ecc4c5bf34007208d5b887185865"

60
tests/suites/test_suite_hkdf.function
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@ -1,5 +1,6 @@
/* BEGIN_HEADER */ /* BEGIN_HEADER */
#include "mbedtls/hkdf.h" #include "mbedtls/hkdf.h"
#include "mbedtls/md_internal.h"
/* END_HEADER */ /* END_HEADER */
/* BEGIN_DEPENDENCIES /* BEGIN_DEPENDENCIES
@ -108,3 +109,62 @@ exit:
mbedtls_free(output_okm); mbedtls_free(output_okm);
} }
/* END_CASE */ /* END_CASE */
/* BEGIN_CASE */
void test_hkdf_extract_ret( int hash_len, int ret )
{
int output_ret;
unsigned char *salt = NULL;
unsigned char *ikm = NULL;
unsigned char *prk = NULL;
size_t salt_len, ikm_len;
struct mbedtls_md_info_t fake_md_info;
memset( &fake_md_info, 0, sizeof( fake_md_info ) );
fake_md_info.type = MBEDTLS_MD_NONE;
fake_md_info.size = hash_len;
prk = mbedtls_calloc( MBEDTLS_MD_MAX_SIZE, 1 );
salt_len = 0;
ikm_len = 0;
output_ret = mbedtls_hkdf_extract( &fake_md_info, salt, salt_len,
ikm, ikm_len, prk );
TEST_ASSERT( output_ret == ret );
exit:
mbedtls_free(prk);
}
/* END_CASE */
/* BEGIN_CASE */
void test_hkdf_expand_ret( int hash_len, int prk_len, int okm_len, int ret )
{
int output_ret;
unsigned char *info = NULL;
unsigned char *prk = NULL;
unsigned char *okm = NULL;
size_t info_len;
struct mbedtls_md_info_t fake_md_info;
memset( &fake_md_info, 0, sizeof( fake_md_info ) );
fake_md_info.type = MBEDTLS_MD_NONE;
fake_md_info.size = hash_len;
info_len = 0;
if (prk_len > 0)
prk = mbedtls_calloc( prk_len, 1 );
if (okm_len > 0)
okm = mbedtls_calloc( okm_len, 1 );
output_ret = mbedtls_hkdf_expand( &fake_md_info, prk, prk_len,
info, info_len, okm, okm_len );
TEST_ASSERT( output_ret == ret );
exit:
mbedtls_free(prk);
mbedtls_free(okm);
}
/* END_CASE */