Move pk_info structure to its own file
This is in preparation to adding support for opaque keys in the pk layer. The
header files are for use as follows:
* pk.h for users of the pk interface.
* pk_info.h for implementers of opaque key engines.
* pk_internal.h only inside libmbedcrypto to implement built-in pk types.
diff --git a/include/mbedtls/pk_info.h b/include/mbedtls/pk_info.h
new file mode 100644
index 0000000..fe2dbdf
--- /dev/null
+++ b/include/mbedtls/pk_info.h
@@ -0,0 +1,89 @@
+/**
+ * \file pk_info.h
+ *
+ * \brief Public Key cryptography abstraction layer: object interface
+ *
+ * Copyright (C) 2006-2017, ARM Limited, All Rights Reserved
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * This file is part of mbed TLS (https://tls.mbed.org)
+ */
+
+#ifndef MBEDTLS_PK_INFO_H
+#define MBEDTLS_PK_INFO_H
+
+#if !defined(MBEDTLS_CONFIG_FILE)
+#include "config.h"
+#else
+#include MBEDTLS_CONFIG_FILE
+#endif
+
+#include "pk.h"
+
+struct mbedtls_pk_info_t
+{
+ /** Key pair type with indication of supported algorithms */
+ mbedtls_pk_type_t type;
+
+ /** Type name */
+ const char *name;
+
+ /** Get key size in bits */
+ size_t (*get_bitlen)( const void *ctx );
+
+ /** Tell if the context implements this type (e.g. ECKEY can do ECDSA) */
+ int (*can_do)( const void * ctx, mbedtls_pk_type_t type );
+
+ /** Verify signature */
+ int (*verify_func)( void *ctx, mbedtls_md_type_t md_alg,
+ const unsigned char *hash, size_t hash_len,
+ const unsigned char *sig, size_t sig_len );
+
+ /** Make signature */
+ int (*sign_func)( void *ctx, mbedtls_md_type_t md_alg,
+ const unsigned char *hash, size_t hash_len,
+ unsigned char *sig, size_t *sig_len,
+ int (*f_rng)(void *, unsigned char *, size_t),
+ void *p_rng );
+
+ /** Decrypt message */
+ int (*decrypt_func)( void *ctx, const unsigned char *input, size_t ilen,
+ unsigned char *output, size_t *olen, size_t osize,
+ int (*f_rng)(void *, unsigned char *, size_t),
+ void *p_rng );
+
+ /** Encrypt message */
+ int (*encrypt_func)( void *ctx, const unsigned char *input, size_t ilen,
+ unsigned char *output, size_t *olen, size_t osize,
+ int (*f_rng)(void *, unsigned char *, size_t),
+ void *p_rng );
+
+ /** Check public-private key pair */
+ int (*check_pair_func)( const void *pub, const void *prv );
+
+ /** Allocate a new context */
+ void * (*ctx_alloc_func)( void );
+
+ /** Free the given context */
+ void (*ctx_free_func)( void *ctx );
+
+ /** Interface with the debug module */
+ void (*debug_func)( const void *ctx, mbedtls_pk_debug_item *items );
+
+ /** Signature size */
+ size_t (*signature_size_func)( const void *ctx );
+};
+
+#endif /* MBEDTLS_PK_INFO_H */