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exercise_key: support combined key agreement+derivation algorithms

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Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine 2022-03-19 16:04:30 +01:00
parent 8ddced5b1b
commit 9d3706fb7f
1 changed files with 24 additions and 0 deletions
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24
tests/src/psa_exercise_key.c
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@ -623,15 +623,39 @@ static int exercise_key_agreement_key( mbedtls_svc_key_id_t key,
psa_algorithm_t alg )
{
psa_key_derivation_operation_t operation = PSA_KEY_DERIVATION_OPERATION_INIT;
unsigned char input[1];
unsigned char output[1];
int ok = 0;
psa_algorithm_t kdf_alg = PSA_ALG_KEY_AGREEMENT_GET_KDF( alg );
if( usage & PSA_KEY_USAGE_DERIVE )
{
/* We need two keys to exercise key agreement. Exercise the
* private key against its own public key. */
PSA_ASSERT( psa_key_derivation_setup( &operation, alg ) );
if( PSA_ALG_IS_TLS12_PRF( kdf_alg ) ||
PSA_ALG_IS_TLS12_PSK_TO_MS( kdf_alg ) )
{
PSA_ASSERT( psa_key_derivation_input_bytes(
&operation, PSA_KEY_DERIVATION_INPUT_SEED,
input, sizeof( input ) ) );
}
PSA_ASSERT( mbedtls_test_psa_key_agreement_with_self( &operation, key ) );
if( PSA_ALG_IS_TLS12_PRF( kdf_alg ) ||
PSA_ALG_IS_TLS12_PSK_TO_MS( kdf_alg ) )
{
PSA_ASSERT( psa_key_derivation_input_bytes(
&operation, PSA_KEY_DERIVATION_INPUT_LABEL,
input, sizeof( input ) ) );
}
else if( PSA_ALG_IS_HKDF( kdf_alg ) )
{
PSA_ASSERT( psa_key_derivation_input_bytes(
&operation, PSA_KEY_DERIVATION_INPUT_INFO,
input, sizeof( input ) ) );
}
PSA_ASSERT( psa_key_derivation_output_bytes( &operation,
output,
sizeof( output ) ) );