78 lines
2 KiB
C++
78 lines
2 KiB
C++
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/*
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* This file is part of Codecrypt.
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*
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* Codecrypt is free software: you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or (at
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* your option) any later version.
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*
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* Codecrypt is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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* License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with Codecrypt. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _ccr_algorithm_h_
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#define _ccr_algorithm_h_
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#include "algo_suite.h"
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#include "bvector.h"
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#include "prng.h"
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#include "sencode.h"
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/*
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* virtual interface definition for all cryptographic algorithm instances.
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*
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* Note that the whole class could be defined static, but we really enjoy
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* having the tiny virtual pointers stored in some cool structure along with
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* the handy algorithm name.
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*/
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class algorithm
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{
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public:
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virtual bool provides_signatures() = 0;
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virtual bool provides_encryption() = 0;
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virtual std::string get_alg_id() = 0;
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void register_into_suite (algorithm_suite&s) {
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s[this->get_alg_id()] = this;
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}
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/*
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* note that these functions should be ready for different
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* plaintext/ciphertext/message lengths, usually padding them somehow.
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*/
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virtual int encrypt (const bvector&plain, bvector&cipher,
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sencode* pubkey, prng&rng) {
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return -1;
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}
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virtual int decrypt (const bvector&cipher, bvector&plain,
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sencode* privkey) {
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return -1;
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}
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virtual int sign (const bvector&msg, bvector&sig,
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sencode** privkey, bool&dirty, prng&rng) {
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return -1;
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}
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virtual int verify (const bvector&sig, const bvector&msg,
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sencode* pubkey) {
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return -1;
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}
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virtual int create_keypair (sencode**pub, sencode**priv, prng&rng) {
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return -1;
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}
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};
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#endif
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