mirror of
https://github.com/openssl/openssl.git
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c1e48c5171
Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/11371)
117 lines
3.8 KiB
C
117 lines
3.8 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/core.h>
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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 X448_BITS 448
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# define X448_SECURITY_BITS 224
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# define ED25519_BITS 256
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/* RFC8032 Section 8.5 */
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# define ED25519_SECURITY_BITS 128
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# define ED25519_SIGSIZE 64
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# define ED448_BITS 456
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/* RFC8032 Section 8.5 */
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# define ED448_SECURITY_BITS 224
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# define ED448_SIGSIZE 114
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typedef enum {
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ECX_KEY_TYPE_X25519,
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ECX_KEY_TYPE_X448,
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ECX_KEY_TYPE_ED25519,
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ECX_KEY_TYPE_ED448
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} ECX_KEY_TYPE;
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#define KEYTYPE2NID(type) \
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((type) == ECX_KEY_TYPE_X25519 \
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? EVP_PKEY_X25519 \
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: ((type) == ECX_KEY_TYPE_X448 \
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? EVP_PKEY_X448 \
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: ((type) == ECX_KEY_TYPE_ED25519 \
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? EVP_PKEY_ED25519 \
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: EVP_PKEY_ED448)))
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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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ECX_KEY_TYPE type;
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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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size_t ecx_key_length(ECX_KEY_TYPE type);
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ECX_KEY *ecx_key_new(ECX_KEY_TYPE type, 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 ED25519_public_from_private(OPENSSL_CTX *ctx, uint8_t out_public_key[32],
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const uint8_t private_key[32]);
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int ED25519_sign(uint8_t *out_sig, const uint8_t *message, size_t message_len,
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const uint8_t public_key[32], const uint8_t private_key[32],
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OPENSSL_CTX *libctx, const char *propq);
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int ED25519_verify(const uint8_t *message, size_t message_len,
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const uint8_t signature[64], const uint8_t public_key[32],
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OPENSSL_CTX *libctx, const char *propq);
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int ED448_public_from_private(OPENSSL_CTX *ctx, uint8_t out_public_key[57],
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const uint8_t private_key[57]);
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int ED448_sign(OPENSSL_CTX *ctx, uint8_t *out_sig, const uint8_t *message,
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size_t message_len, const uint8_t public_key[57],
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const uint8_t private_key[57], const uint8_t *context,
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size_t context_len);
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int ED448_verify(OPENSSL_CTX *ctx, const uint8_t *message, size_t message_len,
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const uint8_t signature[114], const uint8_t public_key[57],
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const uint8_t *context, size_t context_len);
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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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/* Backend support */
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int ecx_key_fromdata(ECX_KEY *ecx, const OSSL_PARAM params[],
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int include_private);
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# endif /* OPENSSL_NO_EC */
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#endif
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