C# SHA1加密

SHA1加密

1.引用命名空间

using System.Security.Cryptography;

 

2.编码

/**
* SHA1加密
* @return SHA1加密结果
*/

public static string EncryptBySHA1(string cleartext)
{
    using (HashAlgorithm hashAlgorithm = new SHA1CryptoServiceProvider())
    {
        byte[] utf8Bytes = Encoding.UTF8.GetBytes(cleartext);
        byte[] hashBytes = hashAlgorithm.ComputeHash(utf8Bytes);
        StringBuilder builder = new StringBuilder();
        foreach (byte hashByte in hashBytes)
        {
           builder.AppendFormat("{0:x2}", hashByte);
        }
        return builder.ToString();
    }
}