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249
Esiur/Net/Ppap/DeterministicGenerator.cs
Normal file
249
Esiur/Net/Ppap/DeterministicGenerator.cs
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@@ -0,0 +1,249 @@
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using Org.BouncyCastle.Crypto;
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using Org.BouncyCastle.Crypto.Prng;
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using Org.BouncyCastle.Security;
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using System;
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using System.Collections.Generic;
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using System.Text;
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namespace Esiur.Net.Ppap
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{
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public class DeterministicGenerator
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: SecureRandom
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{
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private static long counter = DateTime.UtcNow.Ticks;
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public byte[] value;
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private static long NextCounterValue()
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{
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return Interlocked.Increment(ref counter);
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}
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private static readonly SecureRandom MasterRandom = new SecureRandom(new CryptoApiRandomGenerator());
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internal static readonly SecureRandom ArbitraryRandom = new SecureRandom(new VmpcRandomGenerator(), 16);
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private static DigestRandomGenerator CreatePrng(string digestName, bool autoSeed)
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{
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IDigest digest = DigestUtilities.GetDigest(digestName);
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if (digest == null)
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return null;
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DigestRandomGenerator prng = new DigestRandomGenerator(digest);
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if (autoSeed)
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{
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AutoSeed(prng, 2 * digest.GetDigestSize());
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}
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return prng;
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}
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public static new byte[] GetNextBytes(SecureRandom secureRandom, int length)
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{
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byte[] result = new byte[length];
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secureRandom.NextBytes(result);
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return result;
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}
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public static new SecureRandom GetInstance(string algorithm)
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{
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return GetInstance(algorithm, true);
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}
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public static new SecureRandom GetInstance(string algorithm, bool autoSeed)
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{
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if (algorithm == null)
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throw new ArgumentNullException(nameof(algorithm));
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if (algorithm.EndsWith("PRNG", StringComparison.OrdinalIgnoreCase))
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{
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string digestName = algorithm.Substring(0, algorithm.Length - "PRNG".Length);
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DigestRandomGenerator prng = CreatePrng(digestName, autoSeed);
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if (prng != null)
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return new SecureRandom(prng);
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}
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throw new ArgumentException("Unrecognised PRNG algorithm: " + algorithm, "algorithm");
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}
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protected new readonly IRandomGenerator generator;
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public DeterministicGenerator(byte[] value)
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: this(CreatePrng("SHA256", true))
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{
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this.value = value;
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}
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public DeterministicGenerator(IRandomGenerator generator)
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{
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this.generator = generator;
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}
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public DeterministicGenerator(IRandomGenerator generator, int autoSeedLengthInBytes)
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{
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AutoSeed(generator, autoSeedLengthInBytes);
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this.generator = generator;
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}
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public override byte[] GenerateSeed(int length)
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{
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return GetNextBytes(MasterRandom, length);
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}
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#if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER
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public override void GenerateSeed(Span<byte> seed)
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{
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MasterRandom.NextBytes(seed);
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}
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#endif
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public override void SetSeed(byte[] seed)
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{
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generator.AddSeedMaterial(seed);
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}
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#if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER
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public override void SetSeed(Span<byte> seed)
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{
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generator.AddSeedMaterial(seed);
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}
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#endif
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public override void SetSeed(long seed)
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{
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generator.AddSeedMaterial(seed);
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}
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public override int Next()
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{
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return NextInt() & int.MaxValue;
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}
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public override int Next(int maxValue)
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{
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if (maxValue < 2)
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{
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if (maxValue < 0)
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throw new ArgumentOutOfRangeException("maxValue", "cannot be negative");
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return 0;
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}
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int bits;
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// Test whether maxValue is a power of 2
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if ((maxValue & (maxValue - 1)) == 0)
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{
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bits = NextInt() & int.MaxValue;
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return (int)(((long)bits * maxValue) >> 31);
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}
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int result;
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do
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{
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bits = NextInt() & int.MaxValue;
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result = bits % maxValue;
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}
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while (bits - result + (maxValue - 1) < 0); // Ignore results near overflow
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return result;
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}
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public override int Next(int minValue, int maxValue)
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{
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if (maxValue <= minValue)
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{
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if (maxValue == minValue)
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return minValue;
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throw new ArgumentException("maxValue cannot be less than minValue");
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}
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int diff = maxValue - minValue;
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if (diff > 0)
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return minValue + Next(diff);
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for (; ; )
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{
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int i = NextInt();
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if (i >= minValue && i < maxValue)
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return i;
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}
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}
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public override void NextBytes(byte[] buf)
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{
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Buffer.BlockCopy(value, 0, buf, 0, buf.Length);
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}
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public override void NextBytes(byte[] buf, int off, int len)
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{
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Buffer.BlockCopy(value, 0, buf, off, len);
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}
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#if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER
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public override void NextBytes(Span<byte> buffer)
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{
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if (generator != null)
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{
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generator.NextBytes(buffer);
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}
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else
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{
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byte[] tmp = new byte[buffer.Length];
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NextBytes(tmp);
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tmp.CopyTo(buffer);
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}
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}
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#endif
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private static readonly double DoubleScale = 1.0 / Convert.ToDouble(1L << 53);
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public override double NextDouble()
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{
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ulong x = (ulong)NextLong() >> 11;
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return Convert.ToDouble(x) * DoubleScale;
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}
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public override int NextInt()
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{
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#if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER
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Span<byte> bytes = stackalloc byte[4];
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#else
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byte[] bytes = new byte[4];
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#endif
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NextBytes(bytes);
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return (int)0;
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}
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public override long NextLong()
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{
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#if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER
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Span<byte> bytes = stackalloc byte[8];
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#else
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byte[] bytes = new byte[8];
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#endif
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NextBytes(bytes);
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return (long)0;
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}
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private static void AutoSeed(IRandomGenerator generator, int seedLength)
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{
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generator.AddSeedMaterial(NextCounterValue());
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#if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER
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Span<byte> seed = seedLength <= 128
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? stackalloc byte[seedLength]
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: new byte[seedLength];
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#else
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byte[] seed = new byte[seedLength];
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#endif
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MasterRandom.NextBytes(seed);
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generator.AddSeedMaterial(seed);
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}
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}
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}
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61
Esiur/Net/Ppap/KeyGenerator.cs
Normal file
61
Esiur/Net/Ppap/KeyGenerator.cs
Normal file
@@ -0,0 +1,61 @@
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using Org.BouncyCastle.Crypto.Generators;
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using Org.BouncyCastle.Crypto.Parameters;
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using System;
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using System.Collections.Generic;
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using System.Text;
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namespace Esiur.Net.Ppap
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{
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internal class KeyGenerator
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{
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public static (byte[], byte[]) Gen(MLKemParameters parameters = null)
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{
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var random = new RandomGenerator();
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var keyGenParameters = new MLKemKeyGenerationParameters(random, parameters ?? MLKemParameters.ml_kem_768);
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var kyberKeyPairGenerator = new MLKemKeyPairGenerator();
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kyberKeyPairGenerator.Init(keyGenParameters);
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var keys = kyberKeyPairGenerator.GenerateKeyPair();
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return ((keys.Private as MLKemPrivateKeyParameters).GetEncoded(),
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(keys.Public as MLKemPublicKeyParameters).GetEncoded());
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}
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public static (byte[], byte[]) GenS(byte[] username, byte[] password, byte[] registrationNonce, Argon2Parameters argon2parameters = null, MLKemParameters mlkemParameters = null)
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{
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var secret = new byte[username.Length + password.Length + registrationNonce.Length];
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Buffer.BlockCopy(username, 0, secret, 0, username.Length);
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Buffer.BlockCopy(password, 0, secret, username.Length, password.Length);
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Buffer.BlockCopy(registrationNonce, 0, secret, username.Length + password.Length, registrationNonce.Length);
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var output = new byte[64];
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//Argon2id.DeriveKey(output, secret, registrationNonce, ArgonIterations, ArgonMemory * 1024);
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var argon2 = new Argon2BytesGenerator();
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var argon2params = argon2parameters ?? new Argon2Parameters.Builder(Argon2Parameters.Argon2id)
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.WithSalt(registrationNonce)
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.WithMemoryAsKB(1024 * 10)
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.WithIterations(3)
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.WithParallelism(1)
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.Build();
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argon2.Init(argon2params);
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var output2 = new byte[64];
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argon2.GenerateBytes(secret, output);
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var random = new DeterministicGenerator(output);
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var keyGenParameters = new MLKemKeyGenerationParameters(random, mlkemParameters ?? MLKemParameters.ml_kem_768);
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var kyberKeyPairGenerator = new MLKemKeyPairGenerator();
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kyberKeyPairGenerator.Init(keyGenParameters);
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var keys = kyberKeyPairGenerator.GenerateKeyPair();
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return ((keys.Private as MLKemPrivateKeyParameters).GetEncoded(),
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(keys.Public as MLKemPublicKeyParameters).GetEncoded());
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}
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}
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}
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247
Esiur/Net/Ppap/RandomGenerator.cs
Normal file
247
Esiur/Net/Ppap/RandomGenerator.cs
Normal file
@@ -0,0 +1,247 @@
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using Org.BouncyCastle.Crypto;
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using Org.BouncyCastle.Crypto.Prng;
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using Org.BouncyCastle.Security;
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using System;
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using System.Collections.Generic;
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using System.Text;
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namespace Esiur.Net.Ppap
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{
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public class RandomGenerator
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: SecureRandom
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{
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private static long counter = DateTime.UtcNow.Ticks;
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private static long NextCounterValue()
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{
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return Interlocked.Increment(ref counter);
|
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}
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private static readonly SecureRandom MasterRandom = new SecureRandom(new CryptoApiRandomGenerator());
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internal static readonly SecureRandom ArbitraryRandom = new SecureRandom(new VmpcRandomGenerator(), 16);
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private static DigestRandomGenerator CreatePrng(string digestName, bool autoSeed)
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||||
{
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IDigest digest = DigestUtilities.GetDigest(digestName);
|
||||
if (digest == null)
|
||||
return null;
|
||||
DigestRandomGenerator prng = new DigestRandomGenerator(digest);
|
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if (autoSeed)
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||||
{
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||||
AutoSeed(prng, 2 * digest.GetDigestSize());
|
||||
}
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||||
return prng;
|
||||
}
|
||||
|
||||
public static new byte[] GetNextBytes(SecureRandom secureRandom, int length)
|
||||
{
|
||||
byte[] result = new byte[length];
|
||||
secureRandom.NextBytes(result);
|
||||
return result;
|
||||
}
|
||||
|
||||
public static new SecureRandom GetInstance(string algorithm)
|
||||
{
|
||||
return GetInstance(algorithm, true);
|
||||
}
|
||||
|
||||
public static new SecureRandom GetInstance(string algorithm, bool autoSeed)
|
||||
{
|
||||
if (algorithm == null)
|
||||
throw new ArgumentNullException(nameof(algorithm));
|
||||
|
||||
if (algorithm.EndsWith("PRNG", StringComparison.OrdinalIgnoreCase))
|
||||
{
|
||||
string digestName = algorithm.Substring(0, algorithm.Length - "PRNG".Length);
|
||||
|
||||
DigestRandomGenerator prng = CreatePrng(digestName, autoSeed);
|
||||
if (prng != null)
|
||||
return new SecureRandom(prng);
|
||||
}
|
||||
|
||||
throw new ArgumentException("Unrecognised PRNG algorithm: " + algorithm, "algorithm");
|
||||
}
|
||||
|
||||
protected new readonly IRandomGenerator generator;
|
||||
|
||||
public RandomGenerator()
|
||||
: this(CreatePrng("SHA256", true))
|
||||
{
|
||||
|
||||
}
|
||||
|
||||
public RandomGenerator(IRandomGenerator generator)
|
||||
|
||||
{
|
||||
this.generator = generator;
|
||||
}
|
||||
|
||||
public RandomGenerator(IRandomGenerator generator, int autoSeedLengthInBytes)
|
||||
|
||||
{
|
||||
AutoSeed(generator, autoSeedLengthInBytes);
|
||||
|
||||
this.generator = generator;
|
||||
}
|
||||
|
||||
public override byte[] GenerateSeed(int length)
|
||||
{
|
||||
return GetNextBytes(MasterRandom, length);
|
||||
}
|
||||
|
||||
#if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER
|
||||
public override void GenerateSeed(Span<byte> seed)
|
||||
{
|
||||
MasterRandom.NextBytes(seed);
|
||||
}
|
||||
#endif
|
||||
|
||||
public override void SetSeed(byte[] seed)
|
||||
{
|
||||
generator.AddSeedMaterial(seed);
|
||||
}
|
||||
|
||||
#if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER
|
||||
public override void SetSeed(Span<byte> seed)
|
||||
{
|
||||
generator.AddSeedMaterial(seed);
|
||||
}
|
||||
#endif
|
||||
|
||||
public override void SetSeed(long seed)
|
||||
{
|
||||
generator.AddSeedMaterial(seed);
|
||||
}
|
||||
|
||||
public override int Next()
|
||||
{
|
||||
return NextInt() & int.MaxValue;
|
||||
}
|
||||
|
||||
public override int Next(int maxValue)
|
||||
{
|
||||
if (maxValue < 2)
|
||||
{
|
||||
if (maxValue < 0)
|
||||
throw new ArgumentOutOfRangeException("maxValue", "cannot be negative");
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int bits;
|
||||
|
||||
// Test whether maxValue is a power of 2
|
||||
if ((maxValue & (maxValue - 1)) == 0)
|
||||
{
|
||||
bits = NextInt() & int.MaxValue;
|
||||
return (int)(((long)bits * maxValue) >> 31);
|
||||
}
|
||||
|
||||
int result;
|
||||
do
|
||||
{
|
||||
bits = NextInt() & int.MaxValue;
|
||||
result = bits % maxValue;
|
||||
}
|
||||
while (bits - result + (maxValue - 1) < 0); // Ignore results near overflow
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
public override int Next(int minValue, int maxValue)
|
||||
{
|
||||
if (maxValue <= minValue)
|
||||
{
|
||||
if (maxValue == minValue)
|
||||
return minValue;
|
||||
|
||||
throw new ArgumentException("maxValue cannot be less than minValue");
|
||||
}
|
||||
|
||||
int diff = maxValue - minValue;
|
||||
if (diff > 0)
|
||||
return minValue + Next(diff);
|
||||
|
||||
for (; ; )
|
||||
{
|
||||
int i = NextInt();
|
||||
|
||||
if (i >= minValue && i < maxValue)
|
||||
return i;
|
||||
}
|
||||
}
|
||||
|
||||
public override void NextBytes(byte[] buf)
|
||||
{
|
||||
generator.NextBytes(buf);
|
||||
}
|
||||
|
||||
public override void NextBytes(byte[] buf, int off, int len)
|
||||
{
|
||||
generator.NextBytes(buf, off, len);
|
||||
}
|
||||
|
||||
#if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER
|
||||
public override void NextBytes(Span<byte> buffer)
|
||||
{
|
||||
if (generator != null)
|
||||
{
|
||||
generator.NextBytes(buffer);
|
||||
}
|
||||
else
|
||||
{
|
||||
byte[] tmp = new byte[buffer.Length];
|
||||
NextBytes(tmp);
|
||||
tmp.CopyTo(buffer);
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
private static readonly double DoubleScale = 1.0 / Convert.ToDouble(1L << 53);
|
||||
|
||||
public override double NextDouble()
|
||||
{
|
||||
ulong x = (ulong)NextLong() >> 11;
|
||||
|
||||
return Convert.ToDouble(x) * DoubleScale;
|
||||
}
|
||||
|
||||
public override int NextInt()
|
||||
{
|
||||
#if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER
|
||||
Span<byte> bytes = stackalloc byte[4];
|
||||
#else
|
||||
byte[] bytes = new byte[4];
|
||||
#endif
|
||||
NextBytes(bytes);
|
||||
return (int)0;
|
||||
}
|
||||
|
||||
public override long NextLong()
|
||||
{
|
||||
#if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER
|
||||
Span<byte> bytes = stackalloc byte[8];
|
||||
#else
|
||||
byte[] bytes = new byte[8];
|
||||
#endif
|
||||
NextBytes(bytes);
|
||||
return (long)0;
|
||||
}
|
||||
|
||||
private static void AutoSeed(IRandomGenerator generator, int seedLength)
|
||||
{
|
||||
generator.AddSeedMaterial(NextCounterValue());
|
||||
|
||||
#if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER
|
||||
Span<byte> seed = seedLength <= 128
|
||||
? stackalloc byte[seedLength]
|
||||
: new byte[seedLength];
|
||||
#else
|
||||
byte[] seed = new byte[seedLength];
|
||||
#endif
|
||||
MasterRandom.NextBytes(seed);
|
||||
generator.AddSeedMaterial(seed);
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
Reference in New Issue
Block a user