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Merge pull request #345 from gilles-peskine-arm/psa_mac_verify_finish-status

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Fix possible error code mangling in psa_mac_verify_finish
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Janos Follath 2020-02-03 13:55:11 +00:00 committed by GitHub
commit b7000d4b2f
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library/psa_crypto.c
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@ -3149,6 +3149,8 @@ psa_status_t psa_mac_verify_finish( psa_mac_operation_t *operation,
status = psa_mac_finish_internal( operation, status = psa_mac_finish_internal( operation,
actual_mac, sizeof( actual_mac ) ); actual_mac, sizeof( actual_mac ) );
if( status != PSA_SUCCESS )
goto cleanup;
if( safer_memcmp( mac, actual_mac, mac_length ) != 0 ) if( safer_memcmp( mac, actual_mac, mac_length ) != 0 )
status = PSA_ERROR_INVALID_SIGNATURE; status = PSA_ERROR_INVALID_SIGNATURE;