using Org.BouncyCastle.Crypto;
using Org.BouncyCastle.Crypto.Parameters;
using Org.BouncyCastle.Math;
using Org.BouncyCastle.Math.EC;
using Org.BouncyCastle.Crypto.Parameters;
using Org.BouncyCastle.Math;
using Org.BouncyCastle.Math.EC;
using Org.BouncyCastle.Utilities.Encoders;
http://www.bouncycastle.org/csharp/index.html
下载bccrypto-csharp-1.8.1-bin.zip 文件
工程中bin文件夹中添加BouncyCastle.Crypto.dll文件,刷新文件夹