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ssl_parse_signature_algorithm(): populate psa handshake fields when psa crypto is enabled

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Signed-off-by: Przemek Stekiel <przemyslaw.stekiel@mobica.com>
This commit is contained in:
Przemek Stekiel 2022-03-16 09:49:33 +01:00
parent 2cecd8aaad
commit ea4000f897
1 changed files with 31 additions and 0 deletions
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31
library/ssl_cli.c
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@ -2610,6 +2610,36 @@ static int ssl_get_ecdh_params_from_cert( mbedtls_ssl_context *ssl )
peer_key = mbedtls_pk_ec( *peer_pk );
#if defined(MBEDTLS_USE_PSA_CRYPTO)
size_t ecdh_bits = 0;
size_t qlen = 0;
ssl->handshake->ecdh_psa_type =
PSA_KEY_TYPE_ECC_KEY_PAIR( mbedtls_ecc_group_to_psa( peer_key->grp.id,
&ecdh_bits ) );
if( ssl->handshake->ecdh_psa_type == 0 || ecdh_bits > 0xffff )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "Invalid ecc group conversion to psa." ) );
return( MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER );
}
ssl->handshake->ecdh_bits = (uint16_t) ecdh_bits;
qlen = mbedtls_mpi_size( (const mbedtls_mpi*) &peer_key->Q );
/* Store peer's public key in psa format. */
ssl->handshake->ecdh_psa_peerkey[0] = 0x04;
MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &peer_key->Q.X,
ssl->handshake->ecdh_psa_peerkey + 1, qlen ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &peer_key->Q.Y,
ssl->handshake->ecdh_psa_peerkey + 1 + qlen, qlen ) );
ssl->handshake->ecdh_psa_peerkey_len = ( 2 * qlen + 1 );
ret = 0;
cleanup:
#else
if( ( ret = mbedtls_ecdh_get_params( &ssl->handshake->ecdh_ctx, peer_key,
MBEDTLS_ECDH_THEIRS ) ) != 0 )
{
@ -2623,6 +2653,7 @@ static int ssl_get_ecdh_params_from_cert( mbedtls_ssl_context *ssl )
return( MBEDTLS_ERR_SSL_BAD_CERTIFICATE );
}
#endif
#if !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
/* We don't need the peer's public key anymore. Free it,
* so that more RAM is available for upcoming expensive