revert: replace in-tree Event Log Lib w/ submodule
This reverts commit cc89c2fc40c74ea8d8f1a1489ea988c66c1b5849.
Reason for revert: Causing CI failures
Change-Id: Iad32fb9ba1d32044ef647f01e3091e9b0ee0d9e2
diff --git a/include/drivers/auth/crypto_mod.h b/include/drivers/auth/crypto_mod.h
new file mode 100644
index 0000000..bec19da
--- /dev/null
+++ b/include/drivers/auth/crypto_mod.h
@@ -0,0 +1,136 @@
+/*
+ * Copyright (c) 2015-2023, Arm Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef CRYPTO_MOD_H
+#define CRYPTO_MOD_H
+
+#define CRYPTO_AUTH_VERIFY_ONLY 1
+#define CRYPTO_HASH_CALC_ONLY 2
+#define CRYPTO_AUTH_VERIFY_AND_HASH_CALC 3
+
+/* Return values */
+enum crypto_ret_value {
+ CRYPTO_SUCCESS = 0,
+ CRYPTO_ERR_INIT,
+ CRYPTO_ERR_HASH,
+ CRYPTO_ERR_SIGNATURE,
+ CRYPTO_ERR_DECRYPTION,
+ CRYPTO_ERR_UNKNOWN
+};
+
+#define CRYPTO_MAX_IV_SIZE 16U
+#define CRYPTO_MAX_TAG_SIZE 16U
+
+/* Decryption algorithm */
+enum crypto_dec_algo {
+ CRYPTO_GCM_DECRYPT = 0
+};
+
+/* Message digest algorithm */
+enum crypto_md_algo {
+ CRYPTO_MD_SHA256,
+ CRYPTO_MD_SHA384,
+ CRYPTO_MD_SHA512,
+};
+
+/* Maximum size as per the known stronger hash algorithm i.e.SHA512 */
+#define CRYPTO_MD_MAX_SIZE 64U
+
+/*
+ * 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 panicking 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);
+
+ /* Calculate a hash. Return hash value */
+ int (*calc_hash)(enum crypto_md_algo md_alg, void *data_ptr,
+ unsigned int data_len,
+ unsigned char output[CRYPTO_MD_MAX_SIZE]);
+
+ /* Convert Public key (optional) */
+ int (*convert_pk)(void *full_pk_ptr, unsigned int full_pk_len,
+ void **hashed_pk_ptr, unsigned int *hashed_pk_len);
+
+ /*
+ * Authenticated decryption. Return one of the
+ * 'enum crypto_ret_value' options.
+ */
+ int (*auth_decrypt)(enum crypto_dec_algo dec_algo, void *data_ptr,
+ size_t len, const void *key, unsigned int key_len,
+ unsigned int key_flags, const void *iv,
+ unsigned int iv_len, const void *tag,
+ unsigned int tag_len);
+} crypto_lib_desc_t;
+
+/* Public functions */
+#if CRYPTO_SUPPORT
+void crypto_mod_init(void);
+#else
+static inline void crypto_mod_init(void)
+{
+}
+#endif /* CRYPTO_SUPPORT */
+
+#if (CRYPTO_SUPPORT == CRYPTO_AUTH_VERIFY_ONLY) || \
+ (CRYPTO_SUPPORT == CRYPTO_AUTH_VERIFY_AND_HASH_CALC)
+int crypto_mod_verify_signature(void *data_ptr, unsigned int data_len,
+ void *sig_ptr, unsigned int sig_len,
+ void *sig_alg_ptr, 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);
+#endif /* (CRYPTO_SUPPORT == CRYPTO_AUTH_VERIFY_ONLY) || \
+ (CRYPTO_SUPPORT == CRYPTO_AUTH_VERIFY_AND_HASH_CALC) */
+
+int crypto_mod_auth_decrypt(enum crypto_dec_algo dec_algo, void *data_ptr,
+ size_t len, const void *key, unsigned int key_len,
+ unsigned int key_flags, const void *iv,
+ unsigned int iv_len, const void *tag,
+ unsigned int tag_len);
+
+#if (CRYPTO_SUPPORT == CRYPTO_HASH_CALC_ONLY) || \
+ (CRYPTO_SUPPORT == CRYPTO_AUTH_VERIFY_AND_HASH_CALC)
+int crypto_mod_calc_hash(enum crypto_md_algo alg, void *data_ptr,
+ unsigned int data_len,
+ unsigned char output[CRYPTO_MD_MAX_SIZE]);
+#endif /* (CRYPTO_SUPPORT == CRYPTO_HASH_CALC_ONLY) || \
+ (CRYPTO_SUPPORT == CRYPTO_AUTH_VERIFY_AND_HASH_CALC) */
+
+int crypto_mod_convert_pk(void *full_pk_ptr, unsigned int full_pk_len,
+ void **hashed_pk_ptr, unsigned int *hashed_pk_len);
+
+/* Macro to register a cryptographic library */
+#define REGISTER_CRYPTO_LIB(_name, _init, _verify_signature, _verify_hash, \
+ _calc_hash, _auth_decrypt, _convert_pk) \
+ const crypto_lib_desc_t crypto_lib_desc = { \
+ .name = _name, \
+ .init = _init, \
+ .verify_signature = _verify_signature, \
+ .verify_hash = _verify_hash, \
+ .calc_hash = _calc_hash, \
+ .auth_decrypt = _auth_decrypt, \
+ .convert_pk = _convert_pk \
+ }
+
+extern const crypto_lib_desc_t crypto_lib_desc;
+
+#endif /* CRYPTO_MOD_H */