mjs3339’s gists

mjs3339 / BigRational.cs

Last active August 11, 2022 22:38

C# Arbitrary Precision Signed Big Rational Numbers

	using System;
	using System.Diagnostics;
	using System.Globalization;
	using System.Numerics;
	using System.Runtime.InteropServices;
	using System.Text;
	[DebuggerDisplay("{" + nameof(DDisplay) + "}")]
	[Serializable]
	public struct BigRational : IComparable, IComparable<BigRational>, IEquatable<BigRational>
	{

mjs3339 / SecureStringHelper.cs

Created January 12, 2021 14:11

Secure String Helper Class

	public class SecureStringHelper : IDisposable
	{
	private readonly Encoding _encoding;
	private readonly SecureString _secureString;
	private byte[] _bytes;
	private bool _disposed;
	public SecureStringHelper(SecureString secureString) : this(secureString, Encoding.Default)
	{
	}
	public SecureStringHelper(SecureString secureString, Encoding encoding)

mjs3339 / xIntX.cs

Last active June 15, 2021 18:21

Adjustable Bit Width Big Unsigned or Signed Integer 32,64,128,256,512,1024,2048…

	using System;
	using System.Collections;
	using System.Collections.Generic;
	using System.ComponentModel;
	using System.Diagnostics;
	using System.Globalization;
	using System.Numerics;
	using System.Runtime.InteropServices;
	using System.Text;
	[Serializable]

mjs3339 / Mapping256BitTo32BitHash.cs

Created January 12, 2021 14:09

Mapping 256Bit Hash to 32Bit Indexed Hash

	using System.Security.Cryptography;
	public class Mapping256BitTo32BitHash : HashAlgorithm
	{
	private readonly SHA256Managed hasher = new SHA256Managed();
	public readonly TinyDictionary<byte[], byte[]> map = new TinyDictionary<byte[], byte[]>(101, new ArrayComparer());
	private byte[] h160;
	public override int HashSize => 32;
	public override void Initialize()
	{
	}

mjs3339 / MapComparer.cs

Created January 12, 2021 14:08

Uses 64bit to 32bit hash Mapping for primitive, Value, and Reference types

	using System;
	using System.Collections.Generic;
	using System.IO;
	using System.Linq;
	using System.Reflection;
	using System.Runtime.Serialization.Formatters.Binary;
	using System.Security;
	[Serializable]
	public class MapComparer<T> : IEqualityComparer<T>
	{

mjs3339 / MonitorActionFuncWrapper.cs

Created January 12, 2021 14:08

Monitor Lock Wrapper

	using System;
	using System.Threading;
	public class MonitorActionFuncWrapper : ConcurrencyCheck
	{
	public void Lock(object localObject, Action action)
	{
	if (action == null)
	throw new Exception("Action argument cannot be null");
	if (CheckState())
	{

mjs3339 / Sha16512.cs

Created January 12, 2021 14:07

Variable 16Bit to 512Bit Hashing Algorithm

	using System;
	using System.Security.Cryptography;
	[Serializable]
	public class Sha16512 : HashAlgorithm
	{
	private int _bitWidth;
	private SHA512Managed _hash = new SHA512Managed();
	public Sha16512(int bitWidth)
	{
	if (bitWidth < 16 \|\| bitWidth > 512)

mjs3339 / GetBytesClass.cs

Created January 12, 2021 14:06

GetBytes Primitive, Serializable, Non-Serializable Arrays

	using System;
	using System.Collections.Generic;
	using System.IO;
	using System.Linq;
	using System.Numerics;
	using System.Reflection;
	using System.Runtime.InteropServices;
	using System.Runtime.Serialization.Formatters.Binary;
	using System.Security;
	using System.Security.Cryptography;

mjs3339 / FNV1a128b.cs

Created January 12, 2021 14:06

FNV1a Patterned 128Bit Hashing Algorithm using BigInteger

	using System.Numerics;
	using System.Security.Cryptography;
	public class FNV1a128b : HashAlgorithm
	{
	private readonly BigInteger K = "309485009821345068724781371".BigIntegerBase10();
	private readonly BigInteger M = "340282366920938463463374607431768211456".BigIntegerBase10();
	private BigInteger _hash;
	private readonly BigInteger Seed = "144066263297769815596495629667062367629".BigIntegerBase10();
	public FNV1a128b()
	{

mjs3339 / RandomX.cs

Created January 12, 2021 14:05

A Fast Random Number Generator Based on BigInteger

	using System;
	using System.Numerics;
	using System.Security.Cryptography;
	public struct RandomX
	{
	private readonly RNGCryptoServiceProvider _crng;
	private int _maxByteWidth;
	private int _bitWidth;
	public RandomX(int bitWidth)
	{