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Fix test issues with depends-hashes

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Needed to make additional fixes so that when MBEDTLS_USE_PSA_CRYPTO
is defined, the depends-hashes test will succeed. There are two
versions of the ecdsa_verify_wrap() function, one with
MBEDTLS_USE_PSA_CRYPTO and when when it is not enabled. The non PSA
version is not using the md_alg parameter since it is not required.
The PSA version was using that parameter to derive a different value
it needed for PSA_ALG_ECDSA. The arguement of PSA_ALG_ECDSA is
ignored for psa_sign_hash and psa_verify_hash. It is present because
it is used and must be a valid hash, not zero, for psa_sign_hash
(but not psa_verify_hash) with PSA_ALG_DETERMINISTIC_ECDSA, and it is
needed for psa_sign_message and psa_verify_message which are not
implemented yet. The local parameter now uses PSA_ALG_ECDSA_ANY for
the verify function to avoid using the md_alg parameter and avoids
returning incorrect error codes.

Fixes #3587

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
This commit is contained in:
John Durkop 2020-08-24 18:29:15 -07:00
parent d46ede0d37
commit 2ec2eaac31
2 changed files with 8 additions and 6 deletions
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8
library/pk_wrap.c
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@ -553,11 +553,12 @@ static int ecdsa_verify_wrap( void *ctx_arg, mbedtls_md_type_t md_alg,
unsigned char buf[30 + 2 * MBEDTLS_ECP_MAX_BYTES];
unsigned char *p;
mbedtls_pk_info_t pk_info = mbedtls_eckey_info;
psa_algorithm_t psa_sig_md, psa_md;
psa_algorithm_t psa_sig_md = PSA_ALG_ECDSA_ANY;
size_t curve_bits;
psa_ecc_family_t curve =
mbedtls_ecc_group_to_psa( ctx->grp.id, &curve_bits );
const size_t signature_part_size = ( ctx->grp.nbits + 7 ) / 8;
((void) md_alg);
if( curve == 0 )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
@ -571,11 +572,6 @@ static int ecdsa_verify_wrap( void *ctx_arg, mbedtls_md_type_t md_alg,
if( key_len <= 0 )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
psa_md = mbedtls_psa_translate_md( md_alg );
if( psa_md == 0 )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
psa_sig_md = PSA_ALG_ECDSA( psa_md );
psa_set_key_type( &attributes, PSA_KEY_TYPE_ECC_PUBLIC_KEY( curve ) );
psa_set_key_usage_flags( &attributes, PSA_KEY_USAGE_VERIFY_HASH );
psa_set_key_algorithm( &attributes, psa_sig_md );

6
tests/scripts/all.sh
View file

@ -1190,6 +1190,12 @@ component_test_depends_hashes () {
record_status tests/scripts/depends-hashes.pl
}
component_test_depends_hashes_psa () {
msg "test/build: depends-hashes.pl with MBEDTLS_USE_PSA_CRYPTO defined (gcc)"
scripts/config.py set MBEDTLS_USE_PSA_CRYPTO
record_status tests/scripts/depends-hashes.pl
}
component_test_depends_pkalgs_psa () {
msg "test/build: depends-pkalgs.pl with MBEDTLS_USE_PSA_CRYPTO defined (gcc)"
scripts/config.py set MBEDTLS_USE_PSA_CRYPTO