76 lines
2.4 KiB
C++
76 lines
2.4 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2017 - ROLI Ltd.
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JUCE is an open source library subject to commercial or open-source
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licensing.
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By using JUCE, you agree to the terms of both the JUCE 5 End-User License
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Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
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27th April 2017).
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End User License Agreement: www.juce.com/juce-5-licence
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Privacy Policy: www.juce.com/juce-5-privacy-policy
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Or: You may also use this code under the terms of the GPL v3 (see
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www.gnu.org/licenses).
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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namespace juce
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{
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//==============================================================================
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/**
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Prime number creation class.
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This class contains static methods for generating and testing prime numbers.
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@see BigInteger
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@tags{Cryptography}
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*/
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class JUCE_API Primes
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{
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public:
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//==============================================================================
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/** Creates a random prime number with a given bit-length.
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The certainty parameter specifies how many iterations to use when testing
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for primality. A safe value might be anything over about 20-30.
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The randomSeeds parameter lets you optionally pass it a set of values with
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which to seed the random number generation, improving the security of the
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keys generated.
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*/
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static BigInteger createProbablePrime (int bitLength,
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int certainty,
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const int* randomSeeds = 0,
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int numRandomSeeds = 0);
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/** Tests a number to see if it's prime.
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This isn't a bulletproof test, it uses a Miller-Rabin test to determine
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whether the number is prime.
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The certainty parameter specifies how many iterations to use when testing - a
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safe value might be anything over about 20-30.
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*/
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static bool isProbablyPrime (const BigInteger& number, int certainty);
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private:
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Primes();
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JUCE_DECLARE_NON_COPYABLE (Primes)
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};
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} // namespace juce
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