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Add negative tests for empty buffer decoding for certain ciphers

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This commit is contained in:
k-stachowiak 2019-07-29 17:46:29 +02:00
parent c5899a0fca
commit d8727230f7
10 changed files with 41 additions and 27 deletions
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6
tests/suites/test_suite_cipher.aes.data
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@ -1,6 +1,10 @@
AES-128 CBC - Decrypt empty buffer
depends_on:MBEDTLS_AES_C:MBEDTLS_CIPHER_MODE_CBC:MBEDTLS_CIPHER_PADDING_PKCS7
dec_empty_buf:MBEDTLS_CIPHER_AES_128_CBC
dec_empty_buf:MBEDTLS_CIPHER_AES_128_CBC:0:0
AES-128 XTS - Decrypt empty buffer
depends_on:MBEDTLS_AES_C:MBEDTLS_CIPHER_MODE_XTS
dec_empty_buf:MBEDTLS_CIPHER_AES_128_XTS:MBEDTLS_ERR_AES_INVALID_INPUT_LENGTH:0
AES-128 CBC - Encrypt and decrypt 0 bytes with PKCS7 padding
depends_on:MBEDTLS_AES_C:MBEDTLS_CIPHER_MODE_CBC:MBEDTLS_CIPHER_PADDING_PKCS7

2
tests/suites/test_suite_cipher.arc4.data
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@ -1,6 +1,6 @@
ARC4 Decrypt empty buffer
depends_on:MBEDTLS_ARC4_C
dec_empty_buf:MBEDTLS_CIPHER_ARC4_128
dec_empty_buf:MBEDTLS_CIPHER_ARC4_128:0:0
ARC4 Encrypt and decrypt 0 bytes
depends_on:MBEDTLS_ARC4_C

2
tests/suites/test_suite_cipher.aria.data
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@ -1,3 +1,3 @@
Aria CBC Decrypt empty buffer
depends_on:MBEDTLS_ARIA_C:MBEDTLS_CIPHER_MODE_CBC
dec_empty_buf:MBEDTLS_CIPHER_ARIA_128_CBC
dec_empty_buf:MBEDTLS_CIPHER_ARIA_128_CBC:0:0

2
tests/suites/test_suite_cipher.blowfish.data
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@ -1,6 +1,6 @@
BLOWFISH CBC Decrypt empty buffer
depends_on:MBEDTLS_BLOWFISH_C:MBEDTLS_CIPHER_MODE_CBC:MBEDTLS_CIPHER_PADDING_PKCS7
dec_empty_buf:MBEDTLS_CIPHER_BLOWFISH_CBC
dec_empty_buf:MBEDTLS_CIPHER_BLOWFISH_CBC:0:0
BLOWFISH Encrypt and decrypt 0 bytes
depends_on:MBEDTLS_BLOWFISH_C:MBEDTLS_CIPHER_MODE_CBC:MBEDTLS_CIPHER_PADDING_PKCS7

2
tests/suites/test_suite_cipher.camellia.data
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@ -1,6 +1,6 @@
CAMELLIA CBC Decrypt empty buffer
depends_on:MBEDTLS_CAMELLIA_C:MBEDTLS_CIPHER_MODE_CBC:MBEDTLS_CIPHER_PADDING_PKCS7
dec_empty_buf:MBEDTLS_CIPHER_CAMELLIA_128_CBC
dec_empty_buf:MBEDTLS_CIPHER_CAMELLIA_128_CBC:0:0
CAMELLIA Encrypt and decrypt 0 bytes
depends_on:MBEDTLS_CAMELLIA_C:MBEDTLS_CIPHER_MODE_CBC:MBEDTLS_CIPHER_PADDING_PKCS7

2
tests/suites/test_suite_cipher.chachapoly.data
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@ -1,6 +1,6 @@
Decrypt empty buffer
depends_on:MBEDTLS_CHACHAPOLY_C
dec_empty_buf:MBEDTLS_CIPHER_CHACHA20_POLY1305
dec_empty_buf:MBEDTLS_CIPHER_CHACHA20_POLY1305:0:0
ChaCha20+Poly1305 Encrypt and decrypt 0 bytes
depends_on:MBEDTLS_CHACHAPOLY_C

6
tests/suites/test_suite_cipher.des.data
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@ -1,14 +1,14 @@
DES CBC Decrypt empty buffer
depends_on:MBEDTLS_DES_C:MBEDTLS_CIPHER_MODE_CBC:MBEDTLS_CIPHER_PADDING_PKCS7
dec_empty_buf:MBEDTLS_CIPHER_DES_CBC
dec_empty_buf:MBEDTLS_CIPHER_DES_CBC:0:0
DES EDE CBC Decrypt empty buffer
depends_on:MBEDTLS_DES_C:MBEDTLS_CIPHER_MODE_CBC:MBEDTLS_CIPHER_PADDING_PKCS7
dec_empty_buf:MBEDTLS_CIPHER_DES_EDE_CBC
dec_empty_buf:MBEDTLS_CIPHER_DES_EDE_CBC:0:0
DES EDE3 CBC Decrypt empty buffer
depends_on:MBEDTLS_DES_C:MBEDTLS_CIPHER_MODE_CBC:MBEDTLS_CIPHER_PADDING_PKCS7
dec_empty_buf:MBEDTLS_CIPHER_DES_EDE3_CBC
dec_empty_buf:MBEDTLS_CIPHER_DES_EDE3_CBC:0:0
DES Encrypt and decrypt 0 bytes
depends_on:MBEDTLS_DES_C:MBEDTLS_CIPHER_MODE_CBC:MBEDTLS_CIPHER_PADDING_PKCS7

33
tests/suites/test_suite_cipher.function
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@ -1,6 +1,10 @@
/* BEGIN_HEADER */
#include "mbedtls/cipher.h"
#if defined(MBEDTLS_AES_C)
#include "mbedtls/aes.h"
#endif
#if defined(MBEDTLS_GCM_C)
#include "mbedtls/gcm.h"
#endif
@ -710,7 +714,9 @@ exit:
/* END_CASE */
/* BEGIN_CASE */
void dec_empty_buf( int cipher )
void dec_empty_buf( int cipher,
int expected_update_ret,
int expected_finish_ret )
{
unsigned char key[32];
unsigned char iv[16];
@ -723,8 +729,6 @@ void dec_empty_buf( int cipher )
size_t outlen = 0;
int expected_ret;
memset( key, 0, 32 );
memset( iv , 0, 16 );
@ -753,25 +757,24 @@ void dec_empty_buf( int cipher )
#endif
/* decode 0-byte string */
TEST_ASSERT( 0 == mbedtls_cipher_update( &ctx_dec, encbuf, 0, decbuf, &outlen ) );
TEST_ASSERT( expected_update_ret ==
mbedtls_cipher_update( &ctx_dec, encbuf, 0, decbuf, &outlen ) );
TEST_ASSERT( 0 == outlen );
if ( cipher_info->mode == MBEDTLS_MODE_CBC ||
cipher_info->mode == MBEDTLS_MODE_ECB )
{
/* CBC and ECB ciphers need a full block of input. */
expected_ret = MBEDTLS_ERR_CIPHER_FULL_BLOCK_EXPECTED;
}
else
if ( expected_finish_ret == 0 &&
( cipher_info->mode == MBEDTLS_MODE_CBC ||
cipher_info->mode == MBEDTLS_MODE_ECB ) )
{
/* Non-CBC and non-ECB ciphers are OK with decrypting empty buffers and
* return success, not MBEDTLS_ERR_CIPHER_FULL_BLOCK_EXPECTED, when
* decrypting an empty buffer. */
expected_ret = 0;
* decrypting an empty buffer.
* On the other hand, CBC and ECB ciphers need a full block of input.
*/
expected_finish_ret = MBEDTLS_ERR_CIPHER_FULL_BLOCK_EXPECTED;
}
TEST_ASSERT( expected_ret == mbedtls_cipher_finish(
&ctx_dec, decbuf + outlen, &outlen ) );
TEST_ASSERT( expected_finish_ret == mbedtls_cipher_finish(
&ctx_dec, decbuf + outlen, &outlen ) );
TEST_ASSERT( 0 == outlen );
exit:

4
tests/suites/test_suite_cipher.gcm.data
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@ -1,10 +1,10 @@
CAMELLIA GCM Decrypt empty buffer
depends_on:MBEDTLS_CAMELLIA_C:MBEDTLS_GCM_C
dec_empty_buf:MBEDTLS_CIPHER_CAMELLIA_128_GCM
dec_empty_buf:MBEDTLS_CIPHER_CAMELLIA_128_GCM:0:0
Aria GCM Decrypt empty buffer
depends_on:MBEDTLS_ARIA_C:MBEDTLS_GCM_C
dec_empty_buf:MBEDTLS_CIPHER_ARIA_128_GCM
dec_empty_buf:MBEDTLS_CIPHER_ARIA_128_GCM:0:0
AES 128 GCM Encrypt and decrypt 0 bytes
depends_on:MBEDTLS_AES_C:MBEDTLS_GCM_C

9
tests/suites/test_suite_cipher.nist_kw.data
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@ -1,3 +1,11 @@
KW AES-128 wrap - Decrypt empty buffer
depends_on:MBEDTLS_AES_C:MBEDTLS_NIST_KW_C
dec_empty_buf:MBEDTLS_CIPHER_AES_128_KW:MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE:MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE
KWP AES-128 wrap - Decrypt empty buffer
depends_on:MBEDTLS_AES_C:MBEDTLS_NIST_KW_C
dec_empty_buf:MBEDTLS_CIPHER_AES_128_KWP:MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE:MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE
KW AES-128 wrap rfc 3394
depends_on:MBEDTLS_AES_C:MBEDTLS_NIST_KW_C
auth_crypt_tv:MBEDTLS_CIPHER_AES_128_KW:"000102030405060708090A0B0C0D0E0F":"":"":"1FA68B0A8112B447AEF34BD8FB5A7B829D3E862371D2CFE5":"":"":"00112233445566778899AABBCCDDEEFF":0
@ -268,4 +276,3 @@ auth_crypt_tv:MBEDTLS_CIPHER_AES_192_KWP:"21fb6600c1d34a74adee67612672593a86cf23
KWP AES-256 wrap CAVS 17.4 FAIL COUNT 4 CLEN 32
depends_on:MBEDTLS_AES_C:MBEDTLS_NIST_KW_C
auth_crypt_tv:MBEDTLS_CIPHER_AES_256_KWP:"c32cb3e1e41a4b9f4de79989957866f5dd48dba38c22a6ebb80e14c84bdd9534":"":"":"c29b05c2619a58ecc1d239e7a34273cd":"":"FAIL":"":0