51 lines
1.4 KiB
C++
51 lines
1.4 KiB
C++
//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2019
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#pragma once
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#include "td/utils/BigNum.h"
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#include "td/utils/common.h"
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#include "td/utils/Slice.h"
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#include "td/utils/Status.h"
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#include "td/utils/UInt.h"
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#include <utility>
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namespace td {
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/*** RSA ***/
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class RSA {
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public:
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RSA clone() const;
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int64 get_fingerprint() const;
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size_t size() const;
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size_t encrypt(unsigned char *from, size_t from_len, unsigned char *to) const;
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void decrypt(Slice from, MutableSlice to) const;
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static Result<RSA> from_pem(Slice pem);
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private:
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RSA(BigNum n, BigNum e);
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BigNum n_;
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BigNum e_;
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};
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/*** PublicRsaKeyInterface ***/
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class PublicRsaKeyInterface {
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public:
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virtual ~PublicRsaKeyInterface() = default;
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virtual Result<std::pair<RSA, int64>> get_rsa(const vector<int64> &fingerprints) = 0;
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virtual void drop_keys() = 0;
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};
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/*** KDF ***/
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void KDF(const string &auth_key, const UInt128 &msg_key, int X, UInt256 *aes_key, UInt256 *aes_iv);
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void tmp_KDF(const UInt128 &server_nonce, const UInt256 &new_nonce, UInt256 *tmp_aes_key, UInt256 *tmp_aes_iv);
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void KDF2(Slice auth_key, const UInt128 &msg_key, int X, UInt256 *aes_key, UInt256 *aes_iv);
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} // namespace td
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