using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Security.Cryptography; namespace SDKCSharp.Utility { public class MD5Util { /// /// MD5加密,全部大写 /// /// /// public static string EncryptToUpper(string input) { return Encrypt(input).ToUpper(); } /// /// 返回长度16串,小写 /// /// /// public static String Encrypt16(String input) { return Encrypt(input).Substring(8, 16); } /// /// MD5加密,全部小写 /// /// /// public static string Encrypt(string input) { return Encrypt(Encoding.UTF8.GetBytes(input)); } /// /// MD5加密 /// /// /// 返回小写字母 public static string Encrypt(byte[] inputData) { // Create a new instance of the MD5CryptoServiceProvider object. MD5CryptoServiceProvider md5Hasher = new MD5CryptoServiceProvider(); // Convert the input string to a byte array and compute the hash. byte[] data = md5Hasher.ComputeHash(inputData); // Create a new Stringbuilder to collect the bytes // and create a string. StringBuilder sBuilder = new StringBuilder(); // Loop through each byte of the hashed data // and format each one as a hexadecimal string. for (int i = 0; i < data.Length; i++) { sBuilder.Append(data[i].ToString("x2")); } // Return the hexadecimal string. return sBuilder.ToString(); } } }