src/Library/NetPro.Utility/Helpers/EncryptHelper.cs

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using System.Globalization;
using System.IO;
using System.Runtime.Serialization.Formatters.Binary;
using System.Security.Cryptography;
using System.Text;

namespace System.NetPro
{
    /// <summary>
    /// 加密操作
    /// 说明：
    /// 1. AES加密整理自支付宝SDK
    /// 2. RSA加密采用 https://github.com/stulzq/DotnetCore.RSA/blob/master/DotnetCore.RSA/RSAHelper.cs
    /// </summary>
    public static class EncryptHelper
    {
        private static readonly object Locker = new object();

        /// <summary>
        /// 通用8位加密KEY
        /// </summary>
        public static string BaseKey = "SHUTDOWN";

        /// <summary>
        /// 生成指定字节密钥
        /// 默认16子节，128位
        /// </summary>
        /// <returns></returns>
        public static string GeneratedKey(int byteNumber = 16)
        {
            byte[] bytes = new byte[byteNumber];
            var rng = new RNGCryptoServiceProvider();
            rng.GetBytes(bytes);
            var key = Convert.ToBase64String(bytes);
            return key;
        }

        #region Md5加密

        /// <summary>
        /// Md5加密，返回16位结果
        /// </summary>
        /// <param name="value">值</param>
        public static string Md5By16(string value)
        {
            return Md5By16(value, Encoding.UTF8);
        }

        /// <summary>
        /// Md5加密，返回16位结果
        /// </summary>
        /// <param name="value">值</param>
        /// <param name="encoding">字符编码</param>
        private static string Md5By16(string value, Encoding encoding)
        {
            return Md5(value, encoding, 4, 8);
        }

        /// <summary>
        /// Md5加密