/// <summary>
/// 加密字符串，输出BASE64编码字符串
/// </summary>
/// <param name="source">要加密的明文字符串</param>
/// <param name="key">密钥字符串，长度为8或者24</param>
/// <returns>加密的BASE64编码的字符串</returns>
public static string Encrypt(string source, string key)
{
source.CheckNotNull("source");
key.CheckNotNullOrEmpty("key");
byte[] keyBytes = Encoding.UTF8.GetBytes(key);
DesHelper des = new DesHelper(keyBytes);
return(des.Encrypt(source));
}
/// <summary>
/// 加密要发送的数据，包含签名，DES加密，RSA加密DES密钥等步骤
/// </summary>
/// <param name="data">要加密的正文明文数据</param>
/// <returns>已加密待发送的密文</returns>
public string EncryptData(string data)
{
data.CheckNotNull("data");
//获取正文摘要
string signData = RsaHelper.SignData(data, _hashType, _ownPrivateKey);
data = new[] { data, signData }.ExpandAndToString(Separator);
//使用DES加密 正文+摘要
DesHelper des = new DesHelper();
data = des.Encrypt(data);
//RSA加密DES密钥
string enDesKey = Convert.ToBase64String(RsaHelper.Encrypt(des.Key, _facePublicKey));
return(new[] { enDesKey, data }.ExpandAndToString(Separator));
}
/// <summary>
/// 加密字节数组
/// </summary>
/// <param name="source">要加密的字节数组</param>
/// <param name="key">密钥字节数组，长度为8或者24</param>
/// <returns>加密后的字节数组</returns>
public static byte[] Encrypt(byte[] source, byte[] key)
{
DesHelper des = new DesHelper(key);
return(des.Encrypt(source));
}