1 files changed, 60 insertions, 0 deletions
diff --git a/include/drivers/auth/crypto_mod.h b/include/drivers/auth/crypto_mod.h
new file mode 100644
index 00000000..08884ab2
--- /dev/null
+++ b/include/drivers/auth/crypto_mod.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef __CRYPTO_MOD_H__
+#define __CRYPTO_MOD_H__
+
+/* Return values */
+enum crypto_ret_value {
+	CRYPTO_SUCCESS = 0,
+	CRYPTO_ERR_INIT,
+	CRYPTO_ERR_HASH,
+	CRYPTO_ERR_SIGNATURE,
+	CRYPTO_ERR_UNKNOWN
+};
+
+/*
+ * Cryptographic library descriptor
+ */
+typedef struct crypto_lib_desc_s {
+	const char *name;
+
+	/* Initialize library. This function is not expected to fail. All errors
+	 * must be handled inside the function, asserting or panicing in case of
+	 * a non-recoverable error */
+	void (*init)(void);
+
+	/* Verify a digital signature. Return one of the
+	 * 'enum crypto_ret_value' options */
+	int (*verify_signature)(void *data_ptr, unsigned int data_len,
+				void *sig_ptr, unsigned int sig_len,
+				void *sig_alg, unsigned int sig_alg_len,
+				void *pk_ptr, unsigned int pk_len);
+
+	/* Verify a hash. Return one of the 'enum crypto_ret_value' options */
+	int (*verify_hash)(void *data_ptr, unsigned int data_len,
+			   void *digest_info_ptr, unsigned int digest_info_len);
+} crypto_lib_desc_t;
+
+/* Public functions */
+void crypto_mod_init(void);
+int crypto_mod_verify_signature(void *data_ptr, unsigned int data_len,
+				void *sig_ptr, unsigned int sig_len,
+				void *sig_alg, unsigned int sig_alg_len,
+				void *pk_ptr, unsigned int pk_len);
+int crypto_mod_verify_hash(void *data_ptr, unsigned int data_len,
+			   void *digest_info_ptr, unsigned int digest_info_len);
+
+/* Macro to register a cryptographic library */
+#define REGISTER_CRYPTO_LIB(_name, _init, _verify_signature, _verify_hash) \
+	const crypto_lib_desc_t crypto_lib_desc = { \
+		.name = _name, \
+		.init = _init, \
+		.verify_signature = _verify_signature, \
+		.verify_hash = _verify_hash \
+	}
+
+#endif /* __CRYPTO_MOD_H__ */