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Merge pull request #58 from Patater/disallow-invalid-context

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Disallow use of invalid contexts
This commit is contained in:
Jaeden Amero 2019-02-21 17:37:04 +00:00 committed by GitHub
commit bf61ca7a04
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GPG key ID: 4AEE18F83AFDEB23
8 changed files with 446 additions and 41 deletions
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2
library/cipher.c
View file

@ -1236,7 +1236,7 @@ int mbedtls_cipher_crypt( mbedtls_cipher_context_t *ctx,
(mbedtls_cipher_context_psa *) ctx->cipher_ctx;
psa_status_t status;
psa_cipher_operation_t cipher_op;
psa_cipher_operation_t cipher_op = PSA_CIPHER_OPERATION_INIT;
size_t part_len;
if( ctx->operation == MBEDTLS_DECRYPT )

68
library/psa_crypto.c
View file

@ -1373,7 +1373,13 @@ psa_status_t psa_hash_setup( psa_hash_operation_t *operation,
psa_algorithm_t alg )
{
int ret;
operation->alg = 0;
/* A context must be freshly initialized before it can be set up. */
if( operation->alg != 0 )
{
return( PSA_ERROR_BAD_STATE );
}
switch( alg )
{
#if defined(MBEDTLS_MD2_C)
@ -1496,8 +1502,7 @@ psa_status_t psa_hash_update( psa_hash_operation_t *operation,
break;
#endif
default:
ret = MBEDTLS_ERR_MD_BAD_INPUT_DATA;
break;
return( PSA_ERROR_BAD_STATE );
}
if( ret != 0 )
@ -1569,8 +1574,7 @@ psa_status_t psa_hash_finish( psa_hash_operation_t *operation,
break;
#endif
default:
ret = MBEDTLS_ERR_MD_BAD_INPUT_DATA;
break;
return( PSA_ERROR_BAD_STATE );
}
status = mbedtls_to_psa_error( ret );
@ -1994,6 +1998,12 @@ static psa_status_t psa_mac_setup( psa_mac_operation_t *operation,
unsigned char truncated = PSA_MAC_TRUNCATED_LENGTH( alg );
psa_algorithm_t full_length_alg = PSA_ALG_FULL_LENGTH_MAC( alg );
/* A context must be freshly initialized before it can be set up. */
if( operation->alg != 0 )
{
return( PSA_ERROR_BAD_STATE );
}
status = psa_mac_init( operation, full_length_alg );
if( status != PSA_SUCCESS )
return( status );
@ -2112,9 +2122,9 @@ psa_status_t psa_mac_update( psa_mac_operation_t *operation,
{
psa_status_t status = PSA_ERROR_BAD_STATE;
if( ! operation->key_set )
goto cleanup;
return( PSA_ERROR_BAD_STATE );
if( operation->iv_required && ! operation->iv_set )
goto cleanup;
return( PSA_ERROR_BAD_STATE );
operation->has_input = 1;
#if defined(MBEDTLS_CMAC_C)
@ -2137,10 +2147,9 @@ psa_status_t psa_mac_update( psa_mac_operation_t *operation,
{
/* This shouldn't happen if `operation` was initialized by
* a setup function. */
status = PSA_ERROR_BAD_STATE;
return( PSA_ERROR_BAD_STATE );
}
cleanup:
if( status != PSA_SUCCESS )
psa_mac_abort( operation );
return( status );
@ -2232,6 +2241,11 @@ psa_status_t psa_mac_sign_finish( psa_mac_operation_t *operation,
{
psa_status_t status;
if( operation->alg == 0 )
{
return( PSA_ERROR_BAD_STATE );
}
/* Fill the output buffer with something that isn't a valid mac
* (barring an attack on the mac and deliberately-crafted input),
* in case the caller doesn't check the return status properly. */
@ -2243,13 +2257,11 @@ psa_status_t psa_mac_sign_finish( psa_mac_operation_t *operation,
if( ! operation->is_sign )
{
status = PSA_ERROR_BAD_STATE;
goto cleanup;
return( PSA_ERROR_BAD_STATE );
}
status = psa_mac_finish_internal( operation, mac, mac_size );
cleanup:
if( status == PSA_SUCCESS )
{
status = psa_mac_abort( operation );
@ -2270,10 +2282,14 @@ psa_status_t psa_mac_verify_finish( psa_mac_operation_t *operation,
uint8_t actual_mac[PSA_MAC_MAX_SIZE];
psa_status_t status;
if( operation->alg == 0 )
{
return( PSA_ERROR_BAD_STATE );
}
if( operation->is_sign )
{
status = PSA_ERROR_BAD_STATE;
goto cleanup;
return( PSA_ERROR_BAD_STATE );
}
if( operation->mac_size != mac_length )
{
@ -2895,6 +2911,12 @@ static psa_status_t psa_cipher_setup( psa_cipher_operation_t *operation,
PSA_KEY_USAGE_ENCRYPT :
PSA_KEY_USAGE_DECRYPT );
/* A context must be freshly initialized before it can be set up. */
if( operation->alg != 0 )
{
return( PSA_ERROR_BAD_STATE );
}
status = psa_cipher_init( operation, alg );
if( status != PSA_SUCCESS )
return( status );
@ -2996,8 +3018,7 @@ psa_status_t psa_cipher_generate_iv( psa_cipher_operation_t *operation,
int ret;
if( operation->iv_set || ! operation->iv_required )
{
status = PSA_ERROR_BAD_STATE;
goto exit;
return( PSA_ERROR_BAD_STATE );
}
if( iv_size < operation->iv_size )
{
@ -3029,8 +3050,7 @@ psa_status_t psa_cipher_set_iv( psa_cipher_operation_t *operation,
int ret;
if( operation->iv_set || ! operation->iv_required )
{
status = PSA_ERROR_BAD_STATE;
goto exit;
return( PSA_ERROR_BAD_STATE );
}
if( iv_length != operation->iv_size )
{
@ -3057,6 +3077,12 @@ psa_status_t psa_cipher_update( psa_cipher_operation_t *operation,
psa_status_t status;
int ret;
size_t expected_output_size;
if( operation->alg == 0 )
{
return( PSA_ERROR_BAD_STATE );
}
if( ! PSA_ALG_IS_STREAM_CIPHER( operation->alg ) )
{
/* Take the unprocessed partial block left over from previous
@ -3098,13 +3124,11 @@ psa_status_t psa_cipher_finish( psa_cipher_operation_t *operation,
if( ! operation->key_set )
{
status = PSA_ERROR_BAD_STATE;
goto error;
return( PSA_ERROR_BAD_STATE );
}
if( operation->iv_required && ! operation->iv_set )
{
status = PSA_ERROR_BAD_STATE;
goto error;
return( PSA_ERROR_BAD_STATE );
}
if( operation->ctx.cipher.operation == MBEDTLS_ENCRYPT &&

6
library/ssl_tls.c
View file

@ -6529,7 +6529,7 @@ static void ssl_calc_finished_tls_sha256(
unsigned char padbuf[32];
#if defined(MBEDTLS_USE_PSA_CRYPTO)
size_t hash_size;
psa_hash_operation_t sha256_psa;
psa_hash_operation_t sha256_psa = PSA_HASH_OPERATION_INIT;
psa_status_t status;
#else
mbedtls_sha256_context sha256;
@ -6605,7 +6605,7 @@ static void ssl_calc_finished_tls_sha384(
unsigned char padbuf[48];
#if defined(MBEDTLS_USE_PSA_CRYPTO)
size_t hash_size;
psa_hash_operation_t sha384_psa;
psa_hash_operation_t sha384_psa = PSA_HASH_OPERATION_INIT;
psa_status_t status;
#else
mbedtls_sha512_context sha512;
@ -10203,7 +10203,7 @@ int mbedtls_ssl_get_key_exchange_md_tls1_2( mbedtls_ssl_context *ssl,
mbedtls_md_type_t md_alg )
{
psa_status_t status;
psa_hash_operation_t hash_operation;
psa_hash_operation_t hash_operation = PSA_HASH_OPERATION_INIT;
psa_algorithm_t hash_alg = mbedtls_psa_translate_md( md_alg );
MBEDTLS_SSL_DEBUG_MSG( 1, ( "Perform PSA-based computation of digest of ServerKeyExchange" ) );

2
library/x509_crt.c
View file

@ -1908,7 +1908,7 @@ static int x509_crt_check_signature( const mbedtls_x509_crt *child,
if( mbedtls_md( md_info, child->tbs.p, child->tbs.len, hash ) != 0 )
return( -1 );
#else
psa_hash_operation_t hash_operation;
psa_hash_operation_t hash_operation = PSA_HASH_OPERATION_INIT;
psa_algorithm_t hash_alg = mbedtls_psa_translate_md( child->sig_md );
if( psa_hash_setup( &hash_operation, hash_alg ) != PSA_SUCCESS )

2
library/x509write_csr.c
View file

@ -142,7 +142,7 @@ int mbedtls_x509write_csr_der( mbedtls_x509write_csr *ctx, unsigned char *buf, s
size_t len = 0;
mbedtls_pk_type_t pk_alg;
#if defined(MBEDTLS_USE_PSA_CRYPTO)
psa_hash_operation_t hash_operation;
psa_hash_operation_t hash_operation = PSA_HASH_OPERATION_INIT;
size_t hash_len;
psa_algorithm_t hash_alg = mbedtls_psa_translate_md( ctx->md_alg );
#endif /* MBEDTLS_USE_PSA_CRYPTO */

4
programs/psa/crypto_examples.c
View file

@ -109,7 +109,7 @@ static psa_status_t cipher_encrypt( psa_key_handle_t key_handle,
size_t *output_len )
{
psa_status_t status;
psa_cipher_operation_t operation;
psa_cipher_operation_t operation = PSA_CIPHER_OPERATION_INIT;
size_t iv_len = 0;
memset( &operation, 0, sizeof( operation ) );
@ -140,7 +140,7 @@ static psa_status_t cipher_decrypt( psa_key_handle_t key_handle,
size_t *output_len )
{
psa_status_t status;
psa_cipher_operation_t operation;
psa_cipher_operation_t operation = PSA_CIPHER_OPERATION_INIT;
memset( &operation, 0, sizeof( operation ) );
status = psa_cipher_decrypt_setup( &operation, key_handle, alg );

9
tests/suites/test_suite_psa_crypto.data
View file

@ -655,6 +655,7 @@ depends_on:MBEDTLS_MD_C:MBEDTLS_SHA256_C
hash_setup:PSA_ALG_HMAC(PSA_ALG_SHA_256):PSA_ERROR_INVALID_ARGUMENT
PSA hash: bad order function calls
depends_on:MBEDTLS_MD_C:MBEDTLS_SHA256_C
hash_bad_order:
PSA hash verify: bad arguments
@ -705,6 +706,10 @@ depends_on:MBEDTLS_CMAC_C
# Either INVALID_ARGUMENT or NOT_SUPPORTED would be reasonable here
mac_setup:PSA_KEY_TYPE_HMAC:"000102030405060708090a0b0c0d0e0f":PSA_ALG_CMAC:PSA_ERROR_NOT_SUPPORTED
PSA MAC: bad order function calls
depends_on:MBEDTLS_MD_C:MBEDTLS_SHA256_C
mac_bad_order:
PSA MAC sign: RFC4231 Test case 1 - HMAC-SHA-224
depends_on:MBEDTLS_MD_C:MBEDTLS_SHA256_C
mac_sign:PSA_KEY_TYPE_HMAC:"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":PSA_ALG_HMAC(PSA_ALG_SHA_224):"4869205468657265":"896fb1128abbdf196832107cd49df33f47b4b1169912ba4f53684b22"
@ -922,6 +927,10 @@ depends_on:MBEDTLS_ARC4_C:MBEDTLS_CIPHER_MODE_CTR
# Either INVALID_ARGUMENT or NOT_SUPPORTED would be reasonable here
cipher_setup:PSA_KEY_TYPE_ARC4:"000102030405060708090a0b0c0d0e0f":PSA_ALG_CTR:PSA_ERROR_NOT_SUPPORTED
PSA cipher: bad order function calls
depends_on:MBEDTLS_AES_C:MBEDTLS_CIPHER_MODE_CBC
cipher_bad_order:
PSA symmetric encrypt: AES-CBC-nopad, 16 bytes, good
depends_on:MBEDTLS_AES_C:MBEDTLS_CIPHER_MODE_CBC
cipher_encrypt:PSA_ALG_CBC_NO_PADDING:PSA_KEY_TYPE_AES:"2b7e151628aed2a6abf7158809cf4f3c":"6bc1bee22e409f96e93d7e117393172a":"a076ec9dfbe47d52afc357336f20743b":PSA_SUCCESS

394
tests/suites/test_suite_psa_crypto.function
View file

@ -1950,6 +1950,7 @@ exit:
/* BEGIN_CASE */
void hash_operation_init( )
{
const uint8_t input[1] = { 0 };
/* Test each valid way of initializing the object, except for `= {0}`, as
* Clang 5 complains when `-Wmissing-field-initializers` is used, even
* though it's OK by the C standard. We could test for this, but we'd need
@ -1960,6 +1961,14 @@ void hash_operation_init( )
memset( &zero, 0, sizeof( zero ) );
/* A freshly-initialized hash operation should not be usable. */
TEST_EQUAL( psa_hash_update( &func, input, sizeof( input ) ),
PSA_ERROR_BAD_STATE );
TEST_EQUAL( psa_hash_update( &init, input, sizeof( input ) ),
PSA_ERROR_BAD_STATE );
TEST_EQUAL( psa_hash_update( &zero, input, sizeof( input ) ),
PSA_ERROR_BAD_STATE );
/* A default hash operation should be abortable without error. */
PSA_ASSERT( psa_hash_abort( &func ) );
PSA_ASSERT( psa_hash_abort( &init ) );
@ -1990,32 +1999,85 @@ exit:
/* BEGIN_CASE */
void hash_bad_order( )
{
psa_algorithm_t alg = PSA_ALG_SHA_256;
unsigned char input[] = "";
/* SHA-256 hash of an empty string */
unsigned char hash[] = {
const unsigned char valid_hash[] = {
0xe3, 0xb0, 0xc4, 0x42, 0x98, 0xfc, 0x1c, 0x14, 0x9a, 0xfb, 0xf4, 0xc8,
0x99, 0x6f, 0xb9, 0x24, 0x27, 0xae, 0x41, 0xe4, 0x64, 0x9b, 0x93, 0x4c,
0xa4, 0x95, 0x99, 0x1b, 0x78, 0x52, 0xb8, 0x55 };
unsigned char hash[sizeof(valid_hash)] = { 0 };
size_t hash_len;
psa_hash_operation_t operation = PSA_HASH_OPERATION_INIT;
PSA_ASSERT( psa_crypto_init( ) );
/* psa_hash_update without calling psa_hash_setup beforehand */
memset( &operation, 0, sizeof( operation ) );
/* Call setup twice in a row. */
PSA_ASSERT( psa_hash_setup( &operation, alg ) );
TEST_EQUAL( psa_hash_setup( &operation, alg ),
PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_hash_abort( &operation ) );
/* Call update without calling setup beforehand. */
TEST_EQUAL( psa_hash_update( &operation, input, sizeof( input ) ),
PSA_ERROR_INVALID_ARGUMENT );
PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_hash_abort( &operation ) );
/* psa_hash_verify without calling psa_hash_setup beforehand */
memset( &operation, 0, sizeof( operation ) );
TEST_EQUAL( psa_hash_verify( &operation, hash, sizeof( hash ) ),
PSA_ERROR_INVALID_ARGUMENT );
/* Call update after finish. */
PSA_ASSERT( psa_hash_setup( &operation, alg ) );
PSA_ASSERT( psa_hash_finish( &operation,
hash, sizeof( hash ), &hash_len ) );
TEST_EQUAL( psa_hash_update( &operation, input, sizeof( input ) ),
PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_hash_abort( &operation ) );
/* psa_hash_finish without calling psa_hash_setup beforehand */
memset( &operation, 0, sizeof( operation ) );
/* Call verify without calling setup beforehand. */
TEST_EQUAL( psa_hash_verify( &operation,
valid_hash, sizeof( valid_hash ) ),
PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_hash_abort( &operation ) );
/* Call verify after finish. */
PSA_ASSERT( psa_hash_setup( &operation, alg ) );
PSA_ASSERT( psa_hash_finish( &operation,
hash, sizeof( hash ), &hash_len ) );
TEST_EQUAL( psa_hash_verify( &operation,
valid_hash, sizeof( valid_hash ) ),
PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_hash_abort( &operation ) );
/* Call verify twice in a row. */
PSA_ASSERT( psa_hash_setup( &operation, alg ) );
PSA_ASSERT( psa_hash_verify( &operation,
valid_hash, sizeof( valid_hash ) ) );
TEST_EQUAL( psa_hash_verify( &operation,
valid_hash, sizeof( valid_hash ) ),
PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_hash_abort( &operation ) );
/* Call finish without calling setup beforehand. */
TEST_EQUAL( psa_hash_finish( &operation,
hash, sizeof( hash ), &hash_len ),
PSA_ERROR_INVALID_ARGUMENT );
PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_hash_abort( &operation ) );
/* Call finish twice in a row. */
PSA_ASSERT( psa_hash_setup( &operation, alg ) );
PSA_ASSERT( psa_hash_finish( &operation,
hash, sizeof( hash ), &hash_len ) );
TEST_EQUAL( psa_hash_finish( &operation,
hash, sizeof( hash ), &hash_len ),
PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_hash_abort( &operation ) );
/* Call finish after calling verify. */
PSA_ASSERT( psa_hash_setup( &operation, alg ) );
PSA_ASSERT( psa_hash_verify( &operation,
valid_hash, sizeof( valid_hash ) ) );
TEST_EQUAL( psa_hash_finish( &operation,
hash, sizeof( hash ), &hash_len ),
PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_hash_abort( &operation ) );
exit:
mbedtls_psa_crypto_free( );
@ -2168,6 +2230,8 @@ exit:
/* BEGIN_CASE */
void mac_operation_init( )
{
const uint8_t input[1] = { 0 };
/* Test each valid way of initializing the object, except for `= {0}`, as
* Clang 5 complains when `-Wmissing-field-initializers` is used, even
* though it's OK by the C standard. We could test for this, but we'd need
@ -2178,6 +2242,17 @@ void mac_operation_init( )
memset( &zero, 0, sizeof( zero ) );
/* A freshly-initialized MAC operation should not be usable. */
TEST_EQUAL( psa_mac_update( &func,
input, sizeof( input ) ),
PSA_ERROR_BAD_STATE );
TEST_EQUAL( psa_mac_update( &init,
input, sizeof( input ) ),
PSA_ERROR_BAD_STATE );
TEST_EQUAL( psa_mac_update( &zero,
input, sizeof( input ) ),
PSA_ERROR_BAD_STATE );
/* A default MAC operation should be abortable without error. */
PSA_ASSERT( psa_mac_abort( &func ) );
PSA_ASSERT( psa_mac_abort( &init ) );
@ -2220,6 +2295,130 @@ exit:
}
/* END_CASE */
/* BEGIN_CASE */
void mac_bad_order( )
{
psa_key_handle_t handle = 0;
psa_key_type_t key_type = PSA_KEY_TYPE_HMAC;
psa_algorithm_t alg = PSA_ALG_HMAC(PSA_ALG_SHA_256);
const uint8_t key[] = {
0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa };
psa_key_policy_t policy = PSA_KEY_POLICY_INIT;
psa_mac_operation_t operation = PSA_MAC_OPERATION_INIT;
uint8_t sign_mac[PSA_MAC_MAX_SIZE + 10] = { 0 };
size_t sign_mac_length = 0;
const uint8_t input[] = { 0xbb, 0xbb, 0xbb, 0xbb };
const uint8_t verify_mac[] = {
0x74, 0x65, 0x93, 0x8c, 0xeb, 0x1d, 0xb3, 0x76, 0x5a, 0x38, 0xe7, 0xdd,
0x85, 0xc5, 0xad, 0x4f, 0x07, 0xe7, 0xd5, 0xb2, 0x64, 0xf0, 0x1a, 0x1a,
0x2c, 0xf9, 0x18, 0xca, 0x59, 0x7e, 0x5d, 0xf6 };
PSA_ASSERT( psa_crypto_init( ) );
PSA_ASSERT( psa_allocate_key( &handle ) );
psa_key_policy_set_usage( &policy,
PSA_KEY_USAGE_SIGN | PSA_KEY_USAGE_VERIFY,
alg );
PSA_ASSERT( psa_set_key_policy( handle, &policy ) );
PSA_ASSERT( psa_import_key( handle, key_type,
key, sizeof(key) ) );
/* Call update without calling setup beforehand. */
TEST_EQUAL( psa_mac_update( &operation, input, sizeof( input ) ),
PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_mac_abort( &operation ) );
/* Call sign finish without calling setup beforehand. */
TEST_EQUAL( psa_mac_sign_finish( &operation, sign_mac, sizeof( sign_mac ),
&sign_mac_length),
PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_mac_abort( &operation ) );
/* Call verify finish without calling setup beforehand. */
TEST_EQUAL( psa_mac_verify_finish( &operation,
verify_mac, sizeof( verify_mac ) ),
PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_mac_abort( &operation ) );
/* Call setup twice in a row. */
PSA_ASSERT( psa_mac_sign_setup( &operation,
handle, alg ) );
TEST_EQUAL( psa_mac_sign_setup( &operation,
handle, alg ),
PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_mac_abort( &operation ) );
/* Call update after sign finish. */
PSA_ASSERT( psa_mac_sign_setup( &operation,
handle, alg ) );
PSA_ASSERT( psa_mac_update( &operation, input, sizeof( input ) ) );
PSA_ASSERT( psa_mac_sign_finish( &operation,
sign_mac, sizeof( sign_mac ),
&sign_mac_length ) );
TEST_EQUAL( psa_mac_update( &operation, input, sizeof( input ) ),
PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_mac_abort( &operation ) );
/* Call update after verify finish. */
PSA_ASSERT( psa_mac_verify_setup( &operation,
handle, alg ) );
PSA_ASSERT( psa_mac_update( &operation, input, sizeof( input ) ) );
PSA_ASSERT( psa_mac_verify_finish( &operation,
verify_mac, sizeof( verify_mac ) ) );
TEST_EQUAL( psa_mac_update( &operation, input, sizeof( input ) ),
PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_mac_abort( &operation ) );
/* Call sign finish twice in a row. */
PSA_ASSERT( psa_mac_sign_setup( &operation,
handle, alg ) );
PSA_ASSERT( psa_mac_update( &operation, input, sizeof( input ) ) );
PSA_ASSERT( psa_mac_sign_finish( &operation,
sign_mac, sizeof( sign_mac ),
&sign_mac_length ) );
TEST_EQUAL( psa_mac_sign_finish( &operation,
sign_mac, sizeof( sign_mac ),
&sign_mac_length ),
PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_mac_abort( &operation ) );
/* Call verify finish twice in a row. */
PSA_ASSERT( psa_mac_verify_setup( &operation,
handle, alg ) );
PSA_ASSERT( psa_mac_update( &operation, input, sizeof( input ) ) );
PSA_ASSERT( psa_mac_verify_finish( &operation,
verify_mac, sizeof( verify_mac ) ) );
TEST_EQUAL( psa_mac_verify_finish( &operation,
verify_mac, sizeof( verify_mac ) ),
PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_mac_abort( &operation ) );
/* Setup sign but try verify. */
PSA_ASSERT( psa_mac_sign_setup( &operation,
handle, alg ) );
PSA_ASSERT( psa_mac_update( &operation, input, sizeof( input ) ) );
TEST_EQUAL( psa_mac_verify_finish( &operation,
verify_mac, sizeof( verify_mac ) ),
PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_mac_abort( &operation ) );
/* Setup verify but try sign. */
PSA_ASSERT( psa_mac_verify_setup( &operation,
handle, alg ) );
PSA_ASSERT( psa_mac_update( &operation, input, sizeof( input ) ) );
TEST_EQUAL( psa_mac_sign_finish( &operation,
sign_mac, sizeof( sign_mac ),
&sign_mac_length ),
PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_mac_abort( &operation ) );
exit:
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void mac_sign( int key_type_arg,
data_t *key,
@ -2318,6 +2517,9 @@ exit:
/* BEGIN_CASE */
void cipher_operation_init( )
{
const uint8_t input[1] = { 0 };
unsigned char output[1] = { 0 };
size_t output_length;
/* Test each valid way of initializing the object, except for `= {0}`, as
* Clang 5 complains when `-Wmissing-field-initializers` is used, even
* though it's OK by the C standard. We could test for this, but we'd need
@ -2328,6 +2530,23 @@ void cipher_operation_init( )
memset( &zero, 0, sizeof( zero ) );
/* A freshly-initialized cipher operation should not be usable. */
TEST_EQUAL( psa_cipher_update( &func,
input, sizeof( input ),
output, sizeof( output ),
&output_length ),
PSA_ERROR_BAD_STATE );
TEST_EQUAL( psa_cipher_update( &init,
input, sizeof( input ),
output, sizeof( output ),
&output_length ),
PSA_ERROR_BAD_STATE );
TEST_EQUAL( psa_cipher_update( &zero,
input, sizeof( input ),
output, sizeof( output ),
&output_length ),
PSA_ERROR_BAD_STATE );
/* A default cipher operation should be abortable without error. */
PSA_ASSERT( psa_cipher_abort( &func ) );
PSA_ASSERT( psa_cipher_abort( &init ) );
@ -2368,6 +2587,159 @@ exit:
}
/* END_CASE */
/* BEGIN_CASE */
void cipher_bad_order( )
{
psa_key_handle_t handle = 0;
psa_key_type_t key_type = PSA_KEY_TYPE_AES;
psa_algorithm_t alg = PSA_ALG_CBC_PKCS7;
psa_key_policy_t policy = PSA_KEY_POLICY_INIT;
psa_cipher_operation_t operation = PSA_CIPHER_OPERATION_INIT;
unsigned char iv[PSA_BLOCK_CIPHER_BLOCK_SIZE(PSA_KEY_TYPE_AES)] = { 0 };
const uint8_t key[] = {
0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
0xaa, 0xaa, 0xaa, 0xaa };
const uint8_t text[] = {
0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0xbb,
0xbb, 0xbb, 0xbb, 0xbb };
uint8_t buffer[PSA_BLOCK_CIPHER_BLOCK_SIZE(PSA_KEY_TYPE_AES)] = { 0 };
size_t length = 0;
PSA_ASSERT( psa_crypto_init( ) );
PSA_ASSERT( psa_allocate_key( &handle ) );
psa_key_policy_set_usage( &policy,
PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT,
alg );
PSA_ASSERT( psa_set_key_policy( handle, &policy ) );
PSA_ASSERT( psa_import_key( handle, key_type,
key, sizeof(key) ) );
/* Call encrypt setup twice in a row. */
PSA_ASSERT( psa_cipher_encrypt_setup( &operation, handle, alg ) );
TEST_EQUAL( psa_cipher_encrypt_setup( &operation, handle, alg ),
PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_cipher_abort( &operation ) );
/* Call decrypt setup twice in a row. */
PSA_ASSERT( psa_cipher_decrypt_setup( &operation, handle, alg ) );
TEST_EQUAL( psa_cipher_decrypt_setup( &operation, handle, alg ),
PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_cipher_abort( &operation ) );
/* Generate an IV without calling setup beforehand. */
TEST_EQUAL( psa_cipher_generate_iv( &operation,
buffer, sizeof( buffer ),
&length ),
PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_cipher_abort( &operation ) );
/* Generate an IV twice in a row. */
PSA_ASSERT( psa_cipher_encrypt_setup( &operation, handle, alg ) );
PSA_ASSERT( psa_cipher_generate_iv( &operation,
buffer, sizeof( buffer ),
&length ) );
TEST_EQUAL( psa_cipher_generate_iv( &operation,
buffer, sizeof( buffer ),
&length ),
PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_cipher_abort( &operation ) );
/* Generate an IV after it's already set. */
PSA_ASSERT( psa_cipher_encrypt_setup( &operation, handle, alg ) );
PSA_ASSERT( psa_cipher_set_iv( &operation,
iv, sizeof( iv ) ) );
TEST_EQUAL( psa_cipher_generate_iv( &operation,
buffer, sizeof( buffer ),
&length ),
PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_cipher_abort( &operation ) );
/* Set an IV without calling setup beforehand. */
TEST_EQUAL( psa_cipher_set_iv( &operation,
iv, sizeof( iv ) ),
PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_cipher_abort( &operation ) );
/* Set an IV after it's already set. */
PSA_ASSERT( psa_cipher_encrypt_setup( &operation, handle, alg ) );
PSA_ASSERT( psa_cipher_set_iv( &operation,
iv, sizeof( iv ) ) );
TEST_EQUAL( psa_cipher_set_iv( &operation,
iv, sizeof( iv ) ),
PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_cipher_abort( &operation ) );
/* Set an IV after it's already generated. */
PSA_ASSERT( psa_cipher_encrypt_setup( &operation, handle, alg ) );
PSA_ASSERT( psa_cipher_generate_iv( &operation,
buffer, sizeof( buffer ),
&length ) );
TEST_EQUAL( psa_cipher_set_iv( &operation,
iv, sizeof( iv ) ),
PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_cipher_abort( &operation ) );
/* Call update without calling setup beforehand. */
TEST_EQUAL( psa_cipher_update( &operation,
text, sizeof( text ),
buffer, sizeof( buffer ),
&length ),
PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_cipher_abort( &operation ) );
/* Call update without an IV where an IV is required. */
TEST_EQUAL( psa_cipher_update( &operation,
text, sizeof( text ),
buffer, sizeof( buffer ),
&length ),
PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_cipher_abort( &operation ) );
/* Call update after finish. */
PSA_ASSERT( psa_cipher_encrypt_setup( &operation, handle, alg ) );
PSA_ASSERT( psa_cipher_set_iv( &operation,
iv, sizeof( iv ) ) );
PSA_ASSERT( psa_cipher_finish( &operation,
buffer, sizeof( buffer ), &length ) );
TEST_EQUAL( psa_cipher_update( &operation,
text, sizeof( text ),
buffer, sizeof( buffer ),
&length ),
PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_cipher_abort( &operation ) );
/* Call finish without calling setup beforehand. */
TEST_EQUAL( psa_cipher_finish( &operation,
buffer, sizeof( buffer ), &length ),
PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_cipher_abort( &operation ) );
/* Call finish without an IV where an IV is required. */
PSA_ASSERT( psa_cipher_encrypt_setup( &operation, handle, alg ) );
/* Not calling update means we are encrypting an empty buffer, which is OK
* for cipher modes with padding. */
TEST_EQUAL( psa_cipher_finish( &operation,
buffer, sizeof( buffer ), &length ),
PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_cipher_abort( &operation ) );
/* Call finish twice in a row. */
PSA_ASSERT( psa_cipher_encrypt_setup( &operation, handle, alg ) );
PSA_ASSERT( psa_cipher_set_iv( &operation,
iv, sizeof( iv ) ) );
PSA_ASSERT( psa_cipher_finish( &operation,
buffer, sizeof( buffer ), &length ) );
TEST_EQUAL( psa_cipher_finish( &operation,
buffer, sizeof( buffer ), &length ),
PSA_ERROR_BAD_STATE );
PSA_ASSERT( psa_cipher_abort( &operation ) );
exit:
mbedtls_psa_crypto_free( );
}
/* END_CASE */
/* BEGIN_CASE */
void cipher_encrypt( int alg_arg, int key_type_arg,
data_t *key,