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4de88fe6da
Add ref counting and control how we allocate storage for the private key. We will need this type in following commits where we move the ecx code to be provider aware. Reviewed-by: Patrick Steuer <patrick.steuer@de.ibm.com> Reviewed-by: Shane Lontis <shane.lontis@oracle.com> (Merged from https://github.com/openssl/openssl/pull/10964)
68 lines
1.9 KiB
C
68 lines
1.9 KiB
C
/*
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* Copyright 2020 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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/* Internal EC functions for other submodules: not for application use */
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#ifndef OSSL_CRYPTO_ECX_H
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# define OSSL_CRYPTO_ECX_H
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# include <openssl/opensslconf.h>
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# ifndef OPENSSL_NO_EC
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# include <openssl/e_os2.h>
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# include <openssl/crypto.h>
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# include "internal/refcount.h"
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# define X25519_KEYLEN 32
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# define X448_KEYLEN 56
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# define ED25519_KEYLEN 32
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# define ED448_KEYLEN 57
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# define MAX_KEYLEN ED448_KEYLEN
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# define X25519_BITS 253
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# define X25519_SECURITY_BITS 128
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# define ED25519_SIGSIZE 64
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# define X448_BITS 448
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# define ED448_BITS 456
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# define X448_SECURITY_BITS 224
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# define ED448_SIGSIZE 114
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struct ecx_key_st {
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unsigned int haspubkey:1;
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unsigned char pubkey[MAX_KEYLEN];
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unsigned char *privkey;
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size_t keylen;
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CRYPTO_REF_COUNT references;
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CRYPTO_RWLOCK *lock;
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};
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typedef struct ecx_key_st ECX_KEY;
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ECX_KEY *ecx_key_new(size_t keylen, int haspubkey);
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unsigned char *ecx_key_allocate_privkey(ECX_KEY *key);
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void ecx_key_free(ECX_KEY *key);
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int ecx_key_up_ref(ECX_KEY *key);
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int X25519(uint8_t out_shared_key[32], const uint8_t private_key[32],
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const uint8_t peer_public_value[32]);
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void X25519_public_from_private(uint8_t out_public_value[32],
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const uint8_t private_key[32]);
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int X448(uint8_t out_shared_key[56], const uint8_t private_key[56],
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const uint8_t peer_public_value[56]);
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void X448_public_from_private(uint8_t out_public_value[56],
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const uint8_t private_key[56]);
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# endif /* OPENSSL_NO_EC */
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#endif
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