c# 几种常见的加密方法的实现
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2022-06-24 16:41:53
1.acsii码加密//acsii码加密 private static string acsiipwd(string rpwd) { string ret; byte[...
1.acsii码加密
//acsii码加密 private static string acsiipwd(string rpwd) { string ret; byte[] array = system.text.encoding.ascii.getbytes(rpwd); byte[] bytearray = new byte[array.length]; for (int i = 0; i < array.length; i++) { int asciicode = (int)(array[i]); asciicode = asciicode + 1; bytearray[i] = (byte)asciicode; } system.text.asciiencoding asciiencoding = new system.text.asciiencoding(); string strcharacter = asciiencoding.getstring(bytearray); ret = strcharacter; return ret; }
2.md5加密
//md5加密 private static string md5pwd(string rpwd) { string ret; md5 md5 = new md5cryptoserviceprovider(); byte[] palindata = encoding.default.getbytes(rpwd);//将要加密的字符串转换为字节数组 byte[] encryptdata = md5.computehash(palindata);//将字符串加密后也转换为字符数组 ret = convert.tobase64string(encryptdata); return ret; }
3.rsa加密
//rsa加密 private static string rsapwd1(string mykeycontainername) { string ret = ""; cspparameters cp = new cspparameters(); cp.keycontainername = mykeycontainername; rsacryptoserviceprovider rsa = new rsacryptoserviceprovider(cp); ret = rsa.toxmlstring(true); console.writeline("key is : \n" + rsa.toxmlstring(true)); return ret; }
4.des加密
//des加密 private static string despwd(string ciphertext) { string despwd = ""; byte[] buffer; descryptoserviceprovider descsp = new descryptoserviceprovider(); memorystream ms = new memorystream();//先创建 一个内存流 cryptostream crystream = new cryptostream(ms, descsp.createencryptor(), cryptostreammode.write);//将内存流连接到加密转换流 streamwriter sw = new streamwriter(crystream); sw.writeline(ciphertext);//将要加密的字符串写入加密转换流 sw.close(); crystream.close(); buffer = ms.toarray();//将加密后的流转换为字节数组 despwd = convert.tobase64string(buffer);//将加密后的字节数组转换为字符串 return despwd; }
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