Extend crypto SP to support signature verification
The UEFI service of SMM gateway needs pkcs7 signature verification
to authorize variable accesses. Instead of duplicating the mbedtls
entities, crypto SP will provide an interface to do the signature
verification.
Signed-off-by: Gabor Toth <gabor.toth2@arm.com>
Change-Id: I7b0472435ac1620c4fe42d0592e1c64faaf10df7
diff --git a/components/service/crypto/client/psa/crypto_client.h b/components/service/crypto/client/psa/crypto_client.h
new file mode 100644
index 0000000..4b59bbe
--- /dev/null
+++ b/components/service/crypto/client/psa/crypto_client.h
@@ -0,0 +1,16 @@
+/*
+ * Copyright (c) 2023, Arm Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef CRYPTO_CLIENT_H
+#define CRYPTO_CLIENT_H
+
+#include <stdint.h>
+
+int verify_pkcs7_signature(const uint8_t *signature_cert, uint64_t signature_cert_len,
+ const uint8_t *hash, uint64_t hash_len, const uint8_t *public_key_cert,
+ uint64_t public_key_cert_len);
+
+#endif /* CRYPTO_CLIENT_H */