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110 lines
4.0 KiB
C
110 lines
4.0 KiB
C
/* crypto/paillier/paillier.h */
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/* ====================================================================
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* Copyright (c) 2015 The GmSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the GmSSL Project.
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* (http://gmssl.org/)"
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*
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* 4. The name "GmSSL Project" must not be used to endorse or promote
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* products derived from this software without prior written
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* permission. For written permission, please contact
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* guanzhi1980@gmail.com.
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*
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* 5. Products derived from this software may not be called "GmSSL"
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* nor may "GmSSL" appear in their names without prior written
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* permission of the GmSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the GmSSL Project
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* (http://gmssl.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE GmSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE GmSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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*/
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#ifndef HEADER_PAILLIER_H
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#define HEADER_PAILLIER_H
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#include <openssl/bn.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct paillier_st {
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int bits;
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BIGNUM *n; /* public key */
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BIGNUM *lambda; /* private key, lambda(n) = lcm(p-1, q-1) */
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BIGNUM *n_squared; /* online */
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BIGNUM *n_plusone; /* online */
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BIGNUM *x; /* online */
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} PAILLIER;
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PAILLIER *PAILLIER_new(void);
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void PAILLIER_free(PAILLIER *key);
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int PAILLIER_generate_key(PAILLIER *key, int bits);
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int PAILLIER_check_key(PAILLIER *key);
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int PAILLIER_encrypt(BIGNUM *out, const BIGNUM *in, PAILLIER *pub_key);
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int PAILLIER_decrypt(BIGNUM *out, const BIGNUM *in, PAILLIER *pri_key);
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int PAILLIER_ciphertext_add(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, PAILLIER *pub_key);
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int PAILLIER_ciphertext_scalar_mul(BIGNUM *r, unsigned int k,
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const BIGNUM *a, PAILLIER *pub_key);
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/* BEGIN ERROR CODES */
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/*
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* The following lines are auto generated by the script mkerr.pl. Any changes
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* made after this point may be overwritten when the script is next run.
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*/
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void ERR_load_PAILLIER_strings(void);
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/* Error codes for the PAILLIER functions. */
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/* Function codes. */
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# define PAILLIER_F_PAILLIER_CHECK_KEY 100
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# define PAILLIER_F_PAILLIER_CIPHERTEXT_ADD 101
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# define PAILLIER_F_PAILLIER_CIPHERTEXT_SCALAR_MUL 102
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# define PAILLIER_F_PAILLIER_DECRYPT 103
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# define PAILLIER_F_PAILLIER_ENCRYPT 104
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# define PAILLIER_F_PAILLIER_GENERATE_KEY 105
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# define PAILLIER_F_PAILLIER_NEW 106
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/* Reason codes. */
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# define PAILLIER_R_NOT_IMPLEMENTED 100
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#ifdef __cplusplus
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}
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#endif
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#endif
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