using?Org.BouncyCastle.Crypto;
using?Org.BouncyCastle.Crypto.Parameters;
using?Org.BouncyCastle.Math;
using?Org.BouncyCastle.Math.EC;
using?Org.BouncyCastle.Utilities.Encoders;
using?System;
using?System.Text;

namespace?ChinaEncrypt
{
????public?class?SM2Utils
????{
????????//?默認私鑰??
????????string?prik?=?“008890F1303B50AD04440C71819D2496BB7BE32DBC1AEA94B527D9ED1BFDCB0B5B“;
????????//?默認公鑰??
????????string?pubk?=?“0426BA9D72A23F0906BB331B3116E5E3CB631A0C9DDDAAD86C4C30577BD4858F21E892487EE3212E28C3094049FA4BD49C7A83B56E667ED2EA9CCC4AE73EBCDE50“;
????????private??String?Encrypt（byte[]?publicKey?byte[]?data）
????????{
????????????if?（null?==?publicKey?||?publicKey.Length?==?0）
????????????{
????????????????return?null;
????????????}
????????????if?（data?==?null?||?data.Length?==?0）
????????????{
????????????????return?null;
????????????}

????????????byte[]?source?=?new?byte[data.Length];
????????????Array.Copy（data?0?source?0?data.Length）;

????????????Cipher?cipher?=?new?Cipher（）;
????????????SM2?sm2?=?SM2.Instance;



????????????ECPoint?userKey?=?sm2.ecc_curve.DecodePoint（publicKey）;

????????????ECPoint?c1?=?cipher.Init_enc（sm2?userKey）;
????????????cipher.Encrypt（source）;

????????????byte[]?c3?=?new?byte[32];
????????????cipher.Dofinal（c3）;

????????????String?sc1?=?Encoding.Default.GetString（Hex.Encode（c1.GetEncoded（）））;
????????????String?sc2?=?Encoding.Default.GetString（Hex.Encode（source））;
????????????String?sc3?=?Encoding.Default.GetString（Hex.Encode（c3））;

????????????return?（sc1?+?sc2?+?sc3）.ToUpper（）;
????????}

????????private??byte[]?Decrypt（byte[]?privateKey?byte[]?encryptedData）
????????{
????????????if?（null?==?privateKey?||?privateKey.Length?==?0）
????????????{
????????????????return?null;
????????????}
????????????if?（encryptedData?==?null?||?encryptedData.Length?==?0）
????????????{
????????????????return?null;
????????????}

????????????String?data?=?Encoding.Default.GetString（Hex.Encode（encryptedData））;

????????????byte[]?c1Bytes?=?Hex.Decode（Encoding.Default.GetBytes（data.Substring（0?130）））;
????????????int?c2Len?=?encryptedData.Length?-?97;
????????????byte[]?c2?=?Hex.Decode（Encoding.Default.GetBytes（data.Substring（130?2?*?c2Len）））;
????????????byte[]?c3?=?Hex.Decode（Encoding.Default.GetBytes（data.Substring（130?+?2?*?c2Len?64）））;

????????????SM2?sm2?=?SM2.Instance;
????????????BigInteger?userD?=?new?BigInteger（1?privateKey）;

????????????ECPoint?c1?=?sm2.ecc_curve.DecodePoint（c1Bytes）;
????????????Cipher?cipher?=?new?Cipher（）;
????????????cipher.Init_dec（userD?c1）;
????????????cipher.Decrypt（c2）;
????????????cipher.Dofinal（c3）;

????????????return?c2;
????????}

????????///?

????????///?獲取生成的公鑰私鑰
????????///?

????????///?out?prik?私鑰
????????///?out?pubk?公鑰
????????///?
????????public?void?GenerateKeyPair（out?string?prik?out?string?pu

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

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............此處省略115個文件信息