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Merge pull request #3994 from stevew817/feature/cmac_self_test_skip_unsupported

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Allow CMAC self test to skip tests for unsupported primitives
This commit is contained in:
Janos Follath 2021-01-29 13:17:17 +00:00 committed by GitHub
commit 594d7afa00
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 26 additions and 13 deletions
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39
library/cmac.c
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@ -45,22 +45,10 @@
#include "mbedtls/cmac.h"
#include "mbedtls/platform_util.h"
#include "mbedtls/error.h"
#include "mbedtls/platform.h"
#include <string.h>
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#define mbedtls_calloc calloc
#define mbedtls_free free
#if defined(MBEDTLS_SELF_TEST)
#include <stdio.h>
#define mbedtls_printf printf
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_PLATFORM_C */
#if !defined(MBEDTLS_CMAC_ALT) || defined(MBEDTLS_SELF_TEST)
/*
@ -793,6 +781,18 @@ static int cmac_test_subkeys( int verbose,
if( ( ret = mbedtls_cipher_setkey( &ctx, key, keybits,
MBEDTLS_ENCRYPT ) ) != 0 )
{
/* When CMAC is implemented by an alternative implementation, or
* the underlying primitive itself is implemented alternatively,
* AES-192 may be unavailable. This should not cause the selftest
* function to fail. */
if( ( ret == MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED ||
ret == MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE ) &&
cipher_type == MBEDTLS_CIPHER_AES_192_ECB ) {
if( verbose != 0 )
mbedtls_printf( "skipped\n" );
goto next_test;
}
if( verbose != 0 )
mbedtls_printf( "test execution failed\n" );
@ -820,6 +820,7 @@ static int cmac_test_subkeys( int verbose,
if( verbose != 0 )
mbedtls_printf( "passed\n" );
next_test:
mbedtls_cipher_free( &ctx );
}
@ -864,6 +865,18 @@ static int cmac_test_wth_cipher( int verbose,
if( ( ret = mbedtls_cipher_cmac( cipher_info, key, keybits, messages,
message_lengths[i], output ) ) != 0 )
{
/* When CMAC is implemented by an alternative implementation, or
* the underlying primitive itself is implemented alternatively,
* AES-192 may be unavailable. This should not cause the selftest
* function to fail. */
if( ( ret == MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED ||
ret == MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE ) &&
cipher_type == MBEDTLS_CIPHER_AES_192_ECB ) {
if( verbose != 0 )
mbedtls_printf( "skipped\n" );
continue;
}
if( verbose != 0 )
mbedtls_printf( "failed\n" );
goto exit;