/// <summary>
/// 加密
/// </summary>
/// <param name="plainText">明文</param>
/// <param name="encryptKey">加密密钥(加密密钥为null)</param>
/// <returns></returns>
public string Encrypt(string plainText, string encryptKey)
{
//将明文转为字节数组
byte[] arrPlainText = Encoding.UTF8.GetBytes(plainText);
//计算字节数组的哈希值
byte[] arrHash = mCrypto.ComputeHash(arrPlainText);
mCrypto.Clear();
StringBuilder result = new StringBuilder();
for (int i = 0; i < arrHash.Length; i++)
{
result.Append(arrHash[i].ToString("x2"));
}
return(result.ToString());
}