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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Security.Cryptography;
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using System.Text;
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namespace POSV.Utils
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{
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/// <summary>
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/// 类名：RSAFromPkcs8
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/// 功能：RSA加密、解密、签名、验签
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/// 详细：该类对Java生成的密钥进行解密和签名以及验签专用类，不需要修改
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/// 说明：
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/// 以下代码只是为了方便商户测试而提供的样例代码，商户可以根据自己网站的需要，按照技术文档编写,并非一定要使用该代码。
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/// </summary>
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public sealed class RSAFromPkcs8
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{
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/// <summary>
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/// 签名
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/// </summary>
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/// <param name="content">待签名字符串</param>
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/// <param name="privateKey">私钥</param>
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/// <param name="input_charset">编码格式</param>
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/// <returns>签名后字符串</returns>
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public static string sign(string content , string privateKey , string input_charset,string sign_type = "RSA")
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{
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byte[] Data = Encoding.GetEncoding(input_charset).GetBytes(content);
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RSACryptoServiceProvider rsa = DecodePemPrivateKey(privateKey);
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if ("RSA".Equals(sign_type))
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{
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using (var sha1 = new SHA1CryptoServiceProvider())
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{
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byte[] signData = rsa.SignData(Data, sha1);
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return Convert.ToBase64String(signData);
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}
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}
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else
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{
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using (var sha256 = new SHA256CryptoServiceProvider())
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{
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byte[] signData = rsa.SignData(Data, sha256);
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return Convert.ToBase64String(signData);
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}
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}
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}
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/// <summary>
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/// 验签
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/// </summary>
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/// <param name="content">待验签字符串</param>
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/// <param name="signedString">签名</param>
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/// <param name="publicKey">公钥</param>
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/// <param name="input_charset">编码格式</param>
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/// <returns>true(通过)，false(不通过)</returns>
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public static bool verify(string content , string signedString , string publicKey , string input_charset, string sign_type = "RSA")
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{
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bool result = false;
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byte[] Data = Encoding.GetEncoding(input_charset).GetBytes(content);
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byte[] data = Convert.FromBase64String(signedString);
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RSAParameters paraPub = ConvertFromPublicKey(publicKey);
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RSACryptoServiceProvider rsaPub = new RSACryptoServiceProvider();
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rsaPub.ImportParameters(paraPub);
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if ("RSA".Equals(sign_type))
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{
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using (var sha1 = new SHA1CryptoServiceProvider())
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{
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result = rsaPub.VerifyData(Data, sha1, data);
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return result;
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}
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}
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else
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{
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using (var sha256 = new SHA256CryptoServiceProvider())
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{
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result = rsaPub.VerifyData(Data, sha256, data);
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return result;
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}
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}
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}
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/// <summary>
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/// 加密
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/// </summary>
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/// <param name="resData">需要加密的字符串</param>
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/// <param name="publicKey">公钥</param>
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/// <param name="input_charset">编码格式</param>
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/// <returns>明文</returns>
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public static string encryptData(string resData , string publicKey , string input_charset)
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{
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byte[] DataToEncrypt = Encoding.ASCII.GetBytes(resData);
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string result = encrypt(DataToEncrypt , publicKey , input_charset);
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return result;
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}
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/// <summary>
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/// 解密
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/// </summary>
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/// <param name="resData">加密字符串</param>
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/// <param name="privateKey">私钥</param>
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/// <param name="input_charset">编码格式</param>
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/// <returns>明文</returns>
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public static string decryptData(string resData , string privateKey , string input_charset)
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{
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byte[] DataToDecrypt = Convert.FromBase64String(resData);
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string result = "";
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for (int j = 0; j < DataToDecrypt.Length / 128; j++)
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{
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byte[] buf = new byte[128];
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for (int i = 0; i < 128; i++)
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{
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buf[i] = DataToDecrypt[i + 128 * j];
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}
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result += decrypt(buf , privateKey , input_charset);
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}
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return result;
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}
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#region 内部方法
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private static string encrypt(byte[] data , string publicKey , string input_charset)
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{
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RSACryptoServiceProvider rsa = DecodePemPublicKey(publicKey);
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SHA1 sh = new SHA1CryptoServiceProvider();
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byte[] result = rsa.Encrypt(data , false);
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return Convert.ToBase64String(result);
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}
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private static string decrypt(byte[] data , string privateKey , string input_charset)
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{
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string result = "";
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RSACryptoServiceProvider rsa = DecodePemPrivateKey(privateKey);
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SHA1 sh = new SHA1CryptoServiceProvider();
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byte[] source = rsa.Decrypt(data , false);
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char[] asciiChars = new char[Encoding.GetEncoding(input_charset).GetCharCount(source , 0 , source.Length)];
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Encoding.GetEncoding(input_charset).GetChars(source , 0 , source.Length , asciiChars , 0);
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result = new string(asciiChars);
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//result = ASCIIEncoding.ASCII.GetString(source);
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return result;
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}
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private static RSACryptoServiceProvider DecodePemPublicKey(String pemstr)
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{
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byte[] pkcs8publickkey;
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pkcs8publickkey = Convert.FromBase64String(pemstr);
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if (pkcs8publickkey != null)
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{
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RSACryptoServiceProvider rsa = DecodeRSAPublicKey(pkcs8publickkey);
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return rsa;
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}
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else
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return null;
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}
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private static RSACryptoServiceProvider DecodePemPrivateKey(String pemstr)
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{
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byte[] pkcs8privatekey;
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pkcs8privatekey = Convert.FromBase64String(pemstr);
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if (pkcs8privatekey != null)
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{
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RSACryptoServiceProvider rsa = DecodePrivateKeyInfo(pkcs8privatekey);
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return rsa;
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}
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else
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return null;
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}
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private static RSACryptoServiceProvider DecodePrivateKeyInfo(byte[] pkcs8)
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{
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byte[] SeqOID = { 0x30 , 0x0D , 0x06 , 0x09 , 0x2A , 0x86 , 0x48 , 0x86 , 0xF7 , 0x0D , 0x01 , 0x01 , 0x01 , 0x05 , 0x00 };
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byte[] seq = new byte[15];
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MemoryStream mem = new MemoryStream(pkcs8);
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int lenstream = (int)mem.Length;
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BinaryReader binr = new BinaryReader(mem); //wrap Memory Stream with BinaryReader for easy reading
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byte bt = 0;
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ushort twobytes = 0;
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try
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{
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twobytes = binr.ReadUInt16();
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if (twobytes == 0x8130) //data read as little endian order (actual data order for Sequence is 30 81)
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binr.ReadByte(); //advance 1 byte
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else if (twobytes == 0x8230)
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binr.ReadInt16(); //advance 2 bytes
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else
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return null;
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bt = binr.ReadByte();
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if (bt != 0x02)
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return null;
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twobytes = binr.ReadUInt16();
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if (twobytes != 0x0001)
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return null;
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seq = binr.ReadBytes(15); //read the Sequence OID
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if (!CompareBytearrays(seq , SeqOID)) //make sure Sequence for OID is correct
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return null;
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bt = binr.ReadByte();
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if (bt != 0x04) //expect an Octet string
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return null;
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bt = binr.ReadByte(); //read next byte, or next 2 bytes is 0x81 or 0x82; otherwise bt is the byte count
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if (bt == 0x81)
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binr.ReadByte();
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else
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if (bt == 0x82)
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binr.ReadUInt16();
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//------ at this stage, the remaining sequence should be the RSA private key
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byte[] rsaprivkey = binr.ReadBytes((int)(lenstream - mem.Position));
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RSACryptoServiceProvider rsacsp = DecodeRSAPrivateKey(rsaprivkey);
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return rsacsp;
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}
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catch (Exception)
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{
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return null;
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}
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finally { binr.Close(); }
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}
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private static bool CompareBytearrays(byte[] a , byte[] b)
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{
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if (a.Length != b.Length)
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return false;
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int i = 0;
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foreach (byte c in a)
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{
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if (c != b[i])
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return false;
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i++;
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}
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return true;
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}
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private static RSACryptoServiceProvider DecodeRSAPublicKey(byte[] publickey)
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{
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// encoded OID sequence for PKCS #1 rsaEncryption szOID_RSA_RSA = "1.2.840.113549.1.1.1"
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byte[] SeqOID = { 0x30 , 0x0D , 0x06 , 0x09 , 0x2A , 0x86 , 0x48 , 0x86 , 0xF7 , 0x0D , 0x01 , 0x01 , 0x01 , 0x05 , 0x00 };
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byte[] seq = new byte[15];
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// --------- Set up stream to read the asn.1 encoded SubjectPublicKeyInfo blob ------
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MemoryStream mem = new MemoryStream(publickey);
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BinaryReader binr = new BinaryReader(mem); //wrap Memory Stream with BinaryReader for easy reading
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byte bt = 0;
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ushort twobytes = 0;
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try
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{
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twobytes = binr.ReadUInt16();
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if (twobytes == 0x8130) //data read as little endian order (actual data order for Sequence is 30 81)
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binr.ReadByte(); //advance 1 byte
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else if (twobytes == 0x8230)
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binr.ReadInt16(); //advance 2 bytes
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else
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return null;
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seq = binr.ReadBytes(15); //read the Sequence OID
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if (!CompareBytearrays(seq , SeqOID)) //make sure Sequence for OID is correct
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return null;
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twobytes = binr.ReadUInt16();
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if (twobytes == 0x8103) //data read as little endian order (actual data order for Bit String is 03 81)
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binr.ReadByte(); //advance 1 byte
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else if (twobytes == 0x8203)
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binr.ReadInt16(); //advance 2 bytes
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else
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return null;
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bt = binr.ReadByte();
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if (bt != 0x00) //expect null byte next
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return null;
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twobytes = binr.ReadUInt16();
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if (twobytes == 0x8130) //data read as little endian order (actual data order for Sequence is 30 81)
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binr.ReadByte(); //advance 1 byte
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else if (twobytes == 0x8230)
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binr.ReadInt16(); //advance 2 bytes
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else
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return null;
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twobytes = binr.ReadUInt16();
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byte lowbyte = 0x00;
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byte highbyte = 0x00;
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if (twobytes == 0x8102) //data read as little endian order (actual data order for Integer is 02 81)
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lowbyte = binr.ReadByte(); // read next bytes which is bytes in modulus
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else if (twobytes == 0x8202)
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{
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highbyte = binr.ReadByte(); //advance 2 bytes
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lowbyte = binr.ReadByte();
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}
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else
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return null;
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byte[] modint = { lowbyte , highbyte , 0x00 , 0x00 }; //reverse byte order since asn.1 key uses big endian order
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int modsize = BitConverter.ToInt32(modint , 0);
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byte firstbyte = binr.ReadByte();
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binr.BaseStream.Seek(-1 , SeekOrigin.Current);
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if (firstbyte == 0x00)
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{ //if first byte (highest order) of modulus is zero, don't include it
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binr.ReadByte(); //skip this null byte
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modsize -= 1; //reduce modulus buffer size by 1
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}
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byte[] modulus = binr.ReadBytes(modsize); //read the modulus bytes
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if (binr.ReadByte() != 0x02) //expect an Integer for the exponent data
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return null;
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int expbytes = (int)binr.ReadByte(); // should only need one byte for actual exponent data (for all useful values)
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byte[] exponent = binr.ReadBytes(expbytes);
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// ------- create RSACryptoServiceProvider instance and initialize with public key -----
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RSACryptoServiceProvider RSA = new RSACryptoServiceProvider();
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RSAParameters RSAKeyInfo = new RSAParameters();
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RSAKeyInfo.Modulus = modulus;
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RSAKeyInfo.Exponent = exponent;
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RSA.ImportParameters(RSAKeyInfo);
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return RSA;
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}
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catch (Exception)
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{
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return null;
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}
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finally { binr.Close(); }
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}
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private static RSACryptoServiceProvider DecodeRSAPrivateKey(byte[] privkey)
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{
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byte[] MODULUS, E, D, P, Q, DP, DQ, IQ;
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// --------- Set up stream to decode the asn.1 encoded RSA private key ------
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MemoryStream mem = new MemoryStream(privkey);
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BinaryReader binr = new BinaryReader(mem); //wrap Memory Stream with BinaryReader for easy reading
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byte bt = 0;
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ushort twobytes = 0;
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int elems = 0;
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try
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{
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twobytes = binr.ReadUInt16();
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if (twobytes == 0x8130) //data read as little endian order (actual data order for Sequence is 30 81)
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binr.ReadByte(); //advance 1 byte
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else if (twobytes == 0x8230)
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binr.ReadInt16(); //advance 2 bytes
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else
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return null;
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twobytes = binr.ReadUInt16();
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if (twobytes != 0x0102) //version number
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return null;
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bt = binr.ReadByte();
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if (bt != 0x00)
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return null;
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//------ all private key components are Integer sequences ----
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elems = GetIntegerSize(binr);
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MODULUS = binr.ReadBytes(elems);
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elems = GetIntegerSize(binr);
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E = binr.ReadBytes(elems);
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elems = GetIntegerSize(binr);
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D = binr.ReadBytes(elems);
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elems = GetIntegerSize(binr);
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P = binr.ReadBytes(elems);
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elems = GetIntegerSize(binr);
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Q = binr.ReadBytes(elems);
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elems = GetIntegerSize(binr);
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DP = binr.ReadBytes(elems);
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elems = GetIntegerSize(binr);
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DQ = binr.ReadBytes(elems);
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elems = GetIntegerSize(binr);
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IQ = binr.ReadBytes(elems);
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// ------- create RSACryptoServiceProvider instance and initialize with public key -----
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RSACryptoServiceProvider RSA = new RSACryptoServiceProvider();
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RSAParameters RSAparams = new RSAParameters();
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RSAparams.Modulus = MODULUS;
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RSAparams.Exponent = E;
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RSAparams.D = D;
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RSAparams.P = P;
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RSAparams.Q = Q;
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RSAparams.DP = DP;
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RSAparams.DQ = DQ;
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RSAparams.InverseQ = IQ;
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RSA.ImportParameters(RSAparams);
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return RSA;
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}
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catch (Exception)
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{
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return null;
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}
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finally { binr.Close(); }
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}
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private static int GetIntegerSize(BinaryReader binr)
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{
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byte bt = 0;
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byte lowbyte = 0x00;
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byte highbyte = 0x00;
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int count = 0;
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bt = binr.ReadByte();
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if (bt != 0x02) //expect integer
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return 0;
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bt = binr.ReadByte();
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if (bt == 0x81)
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count = binr.ReadByte(); // data size in next byte
|
|
|
else
|
|
|
if (bt == 0x82)
|
|
|
{
|
|
|
highbyte = binr.ReadByte(); // data size in next 2 bytes
|
|
|
lowbyte = binr.ReadByte();
|
|
|
byte[] modint = { lowbyte , highbyte , 0x00 , 0x00 };
|
|
|
count = BitConverter.ToInt32(modint , 0);
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
count = bt; // we already have the data size
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
while (binr.ReadByte() == 0x00)
|
|
|
{ //remove high order zeros in data
|
|
|
count -= 1;
|
|
|
}
|
|
|
binr.BaseStream.Seek(-1 , SeekOrigin.Current); //last ReadByte wasn't a removed zero, so back up a byte
|
|
|
return count;
|
|
|
}
|
|
|
|
|
|
#endregion
|
|
|
|
|
|
#region 解析.net 生成的Pem
|
|
|
private static RSAParameters ConvertFromPublicKey(string pemFileConent)
|
|
|
{
|
|
|
|
|
|
byte[] keyData = Convert.FromBase64String(pemFileConent);
|
|
|
if (keyData.Length < 162)
|
|
|
{
|
|
|
throw new ArgumentException("pem file content is incorrect.");
|
|
|
}
|
|
|
byte[] pemModulus = new byte[128];
|
|
|
byte[] pemPublicExponent = new byte[3];
|
|
|
Array.Copy(keyData , 29 , pemModulus , 0 , 128);
|
|
|
Array.Copy(keyData , 159 , pemPublicExponent , 0 , 3);
|
|
|
RSAParameters para = new RSAParameters();
|
|
|
para.Modulus = pemModulus;
|
|
|
para.Exponent = pemPublicExponent;
|
|
|
return para;
|
|
|
}
|
|
|
|
|
|
private static RSAParameters ConvertFromPrivateKey(string pemFileConent)
|
|
|
{
|
|
|
byte[] keyData = Convert.FromBase64String(pemFileConent);
|
|
|
if (keyData.Length < 609)
|
|
|
{
|
|
|
throw new ArgumentException("pem file content is incorrect.");
|
|
|
}
|
|
|
|
|
|
int index = 11;
|
|
|
byte[] pemModulus = new byte[128];
|
|
|
Array.Copy(keyData , index , pemModulus , 0 , 128);
|
|
|
|
|
|
index += 128;
|
|
|
index += 2;//141
|
|
|
byte[] pemPublicExponent = new byte[3];
|
|
|
Array.Copy(keyData , index , pemPublicExponent , 0 , 3);
|
|
|
|
|
|
index += 3;
|
|
|
index += 4;//148
|
|
|
byte[] pemPrivateExponent = new byte[128];
|
|
|
Array.Copy(keyData , index , pemPrivateExponent , 0 , 128);
|
|
|
|
|
|
index += 128;
|
|
|
index += ((int)keyData[index + 1] == 64 ? 2 : 3);//279
|
|
|
byte[] pemPrime1 = new byte[64];
|
|
|
Array.Copy(keyData , index , pemPrime1 , 0 , 64);
|
|
|
|
|
|
index += 64;
|
|
|
index += ((int)keyData[index + 1] == 64 ? 2 : 3);//346
|
|
|
byte[] pemPrime2 = new byte[64];
|
|
|
Array.Copy(keyData , index , pemPrime2 , 0 , 64);
|
|
|
|
|
|
index += 64;
|
|
|
index += ((int)keyData[index + 1] == 64 ? 2 : 3);//412/413
|
|
|
byte[] pemExponent1 = new byte[64];
|
|
|
Array.Copy(keyData , index , pemExponent1 , 0 , 64);
|
|
|
|
|
|
index += 64;
|
|
|
index += ((int)keyData[index + 1] == 64 ? 2 : 3);//479/480
|
|
|
byte[] pemExponent2 = new byte[64];
|
|
|
Array.Copy(keyData , index , pemExponent2 , 0 , 64);
|
|
|
|
|
|
index += 64;
|
|
|
index += ((int)keyData[index + 1] == 64 ? 2 : 3);//545/546
|
|
|
byte[] pemCoefficient = new byte[64];
|
|
|
Array.Copy(keyData , index , pemCoefficient , 0 , 64);
|
|
|
|
|
|
RSAParameters para = new RSAParameters();
|
|
|
para.Modulus = pemModulus;
|
|
|
para.Exponent = pemPublicExponent;
|
|
|
para.D = pemPrivateExponent;
|
|
|
para.P = pemPrime1;
|
|
|
para.Q = pemPrime2;
|
|
|
para.DP = pemExponent1;
|
|
|
para.DQ = pemExponent2;
|
|
|
para.InverseQ = pemCoefficient;
|
|
|
return para;
|
|
|
}
|
|
|
#endregion
|
|
|
|
|
|
}
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//static void Main(string[] arg)
|
|
|
//{
|
|
|
|
|
|
// /**RSA加密测试,RSA中的密钥对通过SSL工具生成，生成命令如下：
|
|
|
// * 1 生成RSA私钥：
|
|
|
// * openssl genrsa -out rsa_private_key.pem 1024
|
|
|
// *2 生成RSA公钥
|
|
|
// * openssl rsa -in rsa_private_key.pem -pubout -out rsa_public_key.pem
|
|
|
// *
|
|
|
// * 3 将RSA私钥转换成PKCS8格式
|
|
|
// * openssl pkcs8 -topk8 -inform PEM -in rsa_private_key.pem -outform PEM -nocrypt -out rsa_pub_pk8.pem
|
|
|
// *
|
|
|
// * 直接打开rsa_private_key.pem和rsa_pub_pk8.pem文件就可以获取密钥对内容，获取密钥对内容组成字符串时，注意将换行符删除
|
|
|
// * */
|
|
|
|
|
|
// string publickey = "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDzOqfNunFxFtCZPlq7fO/jWwjqmTvAooVBB4y87BizSZ9dl/F7FpAxYc6MmX2TqivCvvORXgdlYdFWAhzXOnIUv9OGG///WPLe9TMs9kIwAZ/APUXauvC01oFLnYkzwPlAh0tQ1Au9arTE/OG1V1dKgf8BXHLPhKL4BmGBEUZBtQIDAQAB";
|
|
|
// string privatekey = "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";
|
|
|
|
|
|
// //加密字符串
|
|
|
// string data = "yibao";
|
|
|
|
|
|
// Console.WriteLine("加密前字符串内容：" + data);
|
|
|
// //加密
|
|
|
// string encrypteddata = RSAFromPkcs8.encryptData(data, publickey, "UTF-8");
|
|
|
// Console.WriteLine("加密后的字符串为：" + encrypteddata);
|
|
|
// Console.WriteLine("解密后的字符串内容：" + RSAFromPkcs8.decryptData(encrypteddata, privatekey, "UTF-8"));
|
|
|
|
|
|
// Console.WriteLine("***********");
|
|
|
|
|
|
// //解密
|
|
|
// string endata = "LpnnvnfA72VnyjboX/OsCPO6FOFXeEnnsKkI7aAEQyVAPfCTfQ43ZYVZVqnADDPMW7VhBXJWyQMAGw2Fh9sS/XLHmO5XW94Yehci6JrJMynePgtIiDysjNA+UlgSTC/MlResNrBm/4MMSPvq0qLwScgpZDynhLsVZk+EQ6G8wgA=";
|
|
|
// string datamw = RSAFromPkcs8.decryptData(endata, privatekey, "UTF-8");
|
|
|
// Console.WriteLine("静态加密后的字符串为：" + endata);
|
|
|
// Console.WriteLine("解密后的字符串内容：" + datamw);
|
|
|
|
|
|
// //签名
|
|
|
// string signdata = "YB010000001441234567286038508081299";
|
|
|
// Console.WriteLine("签名前的字符串内容：" + signdata);
|
|
|
// string sign = RSAFromPkcs8.sign(signdata, privatekey, "UTF-8");
|
|
|
// Console.WriteLine("签名后的字符串：" + sign);
|
|
|
|
|
|
// Console.ReadLine();
|
|
|
//}
|