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/*
* Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file 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.
*/
#pragma once
#include <openssl/evp.h>
#include "crypto/s2n_signature.h"
#include "crypto/s2n_ecdsa.h"
#include "crypto/s2n_hash.h"
#include "crypto/s2n_rsa.h"
#include "utils/s2n_blob.h"
/* Public/Private Key Type */
typedef enum {
S2N_PKEY_TYPE_UNKNOWN = -1,
S2N_PKEY_TYPE_RSA = 0,
S2N_PKEY_TYPE_ECDSA,
S2N_PKEY_TYPE_RSA_PSS,
S2N_PKEY_TYPE_SENTINEL
} s2n_pkey_type;
/* Structure that models a public or private key and type-specific operations */
struct s2n_pkey {
/* Legacy OpenSSL APIs operate on specific keys, but the more recent
* APIs all operate on EVP_PKEY. Let's store both for backwards compatibility. */
union {
struct s2n_rsa_key rsa_key;
struct s2n_ecdsa_key ecdsa_key;
} key;
EVP_PKEY *pkey;
int (*size)(const struct s2n_pkey *key);
int (*sign)(const struct s2n_pkey *priv_key, s2n_signature_algorithm sig_alg,
struct s2n_hash_state *digest, struct s2n_blob *signature);
int (*verify)(const struct s2n_pkey *pub_key, s2n_signature_algorithm sig_alg,
struct s2n_hash_state *digest, struct s2n_blob *signature);
int (*encrypt)(const struct s2n_pkey *key, struct s2n_blob *in, struct s2n_blob *out);
int (*decrypt)(const struct s2n_pkey *key, struct s2n_blob *in, struct s2n_blob *out);
int (*match)(const struct s2n_pkey *pub_key, const struct s2n_pkey *priv_key);
int (*free)(struct s2n_pkey *key);
int (*check_key)(const struct s2n_pkey *key);
};
int s2n_pkey_zero_init(struct s2n_pkey *pkey);
int s2n_pkey_setup_for_type(struct s2n_pkey *pkey, s2n_pkey_type pkey_type);
int s2n_pkey_check_key_exists(const struct s2n_pkey *pkey);
int s2n_pkey_size(const struct s2n_pkey *pkey);
int s2n_pkey_sign(const struct s2n_pkey *pkey, s2n_signature_algorithm sig_alg,
struct s2n_hash_state *digest, struct s2n_blob *signature);
int s2n_pkey_verify(const struct s2n_pkey *pkey, s2n_signature_algorithm sig_alg,
struct s2n_hash_state *digest, struct s2n_blob *signature);
int s2n_pkey_encrypt(const struct s2n_pkey *pkey, struct s2n_blob *in, struct s2n_blob *out);
int s2n_pkey_decrypt(const struct s2n_pkey *pkey, struct s2n_blob *in, struct s2n_blob *out);
int s2n_pkey_match(const struct s2n_pkey *pub_key, const struct s2n_pkey *priv_key);
int s2n_pkey_free(struct s2n_pkey *pkey);
int s2n_asn1der_to_private_key(struct s2n_pkey *priv_key, struct s2n_blob *asn1der);
int s2n_asn1der_to_public_key_and_type(struct s2n_pkey *pub_key, s2n_pkey_type *pkey_type, struct s2n_blob *asn1der);
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