139 lines
4.0 KiB
C
139 lines
4.0 KiB
C
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/*
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* Copyright (c) 2012-2020 MIRACL UK Ltd.
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*
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* This file is part of MIRACL Core
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* (see https://github.com/miracl/core).
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* @file rsa.h
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* @author Mike Scott and Kealan McCusker
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* @date 2nd June 2015
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* @brief RSA Header file for implementation of RSA protocol
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*
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* declares functions
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*
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*/
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#ifndef RSA_WWW_H
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#define RSA_WWW_H
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#include "ff_WWW.h"
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//#include "rsa_support.h"
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using namespace core;
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/*** START OF USER CONFIGURABLE SECTION - ***/
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#define HASH_TYPE_RSA_WWW SHA256 /**< Chosen Hash algorithm */
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/*** END OF USER CONFIGURABLE SECTION ***/
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#define RFS_WWW MODBYTES_XXX*FFLEN_WWW /**< RSA Public Key Size in bytes */
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namespace WWW {
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/**
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@brief Integer Factorisation Public Key
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*/
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typedef struct
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{
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sign32 e; /**< RSA exponent (typically 65537) */
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XXX::BIG n[FFLEN_WWW]; /**< An array of BIGs to store public key */
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} rsa_public_key;
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/**
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@brief Integer Factorisation Private Key
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*/
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typedef struct
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{
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XXX::BIG p[FFLEN_WWW / 2]; /**< secret prime p */
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XXX::BIG q[FFLEN_WWW / 2]; /**< secret prime q */
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XXX::BIG dp[FFLEN_WWW / 2]; /**< decrypting exponent mod (p-1) */
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XXX::BIG dq[FFLEN_WWW / 2]; /**< decrypting exponent mod (q-1) */
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XXX::BIG c[FFLEN_WWW / 2]; /**< 1/p mod q */
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} rsa_private_key;
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/** @brief RSA Private KEy from OpenSSL
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*
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@param P Input prime number
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@param Q Input prime number
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@param DP Input 1/e mod p-1
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@param DQ Input 1/e mod q-1
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@param C Input 1/p mod q
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@param PRIV the output RSA private key
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*/
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extern void RSA_PRIVATE_KEY_FROM_OPENSSL(octet *P,octet* Q,octet *DP,octet *DQ,octet *C,rsa_private_key *PRIV);
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/** @brief RSA Key Pair from OpenSSL
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*
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@param e the encryption exponent
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@param P Input prime number
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@param Q Input prime number
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@param DP Input 1/e mod p-1
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@param DQ Input 1/e mod q-1
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@param C Input 1/p mod q
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@param PRIV the output RSA private key
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@param PUB the output RSA public key
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*/
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extern void RSA_KEY_PAIR_FROM_OPENSSL(sign32 e,octet *P,octet* Q,octet *DP,octet *DQ,octet *C,rsa_private_key *PRIV,rsa_public_key *PUB);
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/** @brief RSA Key Pair Generator
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*
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@param R is a pointer to a cryptographically secure random number generator
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@param e the encryption exponent
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@param PRIV the output RSA private key
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@param PUB the output RSA public key
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@param P Input prime number. Used when R is equal to NULL for testing
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@param Q Input prime number. Used when R is equal to NULL for testing
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*/
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extern void RSA_KEY_PAIR(csprng *R, sign32 e, rsa_private_key* PRIV, rsa_public_key* PUB, octet *P, octet* Q);
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/** @brief RSA encryption of suitably padded plaintext
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*
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@param PUB the input RSA public key
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@param F is input padded message
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@param G is the output ciphertext
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*/
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extern void RSA_ENCRYPT(rsa_public_key* PUB, octet *F, octet *G);
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/** @brief RSA decryption of ciphertext
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*
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@param PRIV the input RSA private key
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@param G is the input ciphertext
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@param F is output plaintext (requires unpadding)
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*/
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extern void RSA_DECRYPT(rsa_private_key* PRIV, octet *G, octet *F);
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/** @brief Destroy an RSA private Key
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*
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@param PRIV the input RSA private key. Destroyed on output.
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*/
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extern void RSA_PRIVATE_KEY_KILL(rsa_private_key *PRIV);
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/** @brief Populates an RSA public key from an octet string
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*
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Creates RSA public key from big-endian base 256 form.
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@param x FF instance to be created from an octet string
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@param S input octet string
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*/
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extern void RSA_fromOctet(XXX::BIG *x, octet *S);
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}
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#endif
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