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39 lines
921 B
C++
39 lines
921 B
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#pragma once
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#include "base/bytes.h"
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namespace openssl {
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class BigNum;
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} // namespace openssl
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namespace MTP {
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struct ModExpFirst {
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static constexpr auto kRandomPowerSize = 256;
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bytes::vector modexp;
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bytes::vector randomPower;
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};
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[[nodiscard]] bool IsPrimeAndGood(bytes::const_span primeBytes, int g);
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[[nodiscard]] bool IsGoodModExpFirst(
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const openssl::BigNum &modexp,
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const openssl::BigNum &prime);
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[[nodiscard]] ModExpFirst CreateModExp(
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int g,
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bytes::const_span primeBytes,
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bytes::const_span randomSeed);
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[[nodiscard]] bytes::vector CreateAuthKey(
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bytes::const_span firstBytes,
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bytes::const_span randomBytes,
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bytes::const_span primeBytes);
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} // namespace MTP
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