C#字符串Hash签名

using System.Security.Cryptography; using System.Text; namespace WebApi_PaddleOCRSharp { public class SHA256Helper { /// summary /// SHA1签名生成40位16进制字符串 /// /summary /// param nameinput待签名字符串/param /// returns/returns public static string Sha1bit40(string input) { string encryptKey ; ASCIIEncoding aSCIIEncoding new ASCIIEncoding(); byte[] tmpByte aSCIIEncoding.GetBytes(input); HMACSHA1 hmac new HMACSHA1(aSCIIEncoding.GetBytes(encryptKey)); byte[] jmBytes hmac.ComputeHash(tmpByte); StringBuilder builder new StringBuilder(); for (int i 0; i jmBytes.Length; i) { builder.Append(jmBytes[i].ToString(X2)); } hmac.Clear(); return builder.ToString(); } /// summary ///SHA256 位字符串Hash签名 /// /summary /// param namestrIN/param /// returns/returns public static string SHA256Encrypt(string strIN) { byte[] tmpByte; SHA256 sha256 SHA256.Create(); tmpByte sha256.ComputeHash(GetKeyByteArray(strIN)); sha256.Clear(); return GetStringValue(tmpByte); } /// summary /// SHA512 位字符串Hash签名 /// /summary /// param namestrIN/param /// returns/returns public static string SHA512Encrypt(string strIN) { byte[] tmpByte; SHA512 sha512 SHA512.Create(); tmpByte sha512.ComputeHash(GetKeyByteArray(strIN)); sha512.Clear(); return GetStringValue(tmpByte); } public static byte[] GetKeyByteArray(string strKey) { ASCIIEncoding Asc new ASCIIEncoding(); int tmpStrLen strKey.Length; byte[] tmpByte new byte[tmpStrLen - 1]; tmpByte Asc.GetBytes(strKey); return tmpByte; } /// summary /// 将byte字节数组转换为大写的16进制字符串 /// /summary /// param namebytesbyte字节数组/param /// returns/returns public static string GetStringValue(byte[] bytes) { StringBuilder builder new StringBuilder(); for (int i 0; i bytes.Length; i) { builder.Append(bytes[i].ToString(X2)); } return builder.ToString(); } } }