securekey

String $securekey Cookie Secure key */ Public function __construct ($prefix = ', $expire =0, $securekey = ') { if (is_string ($prefix) $prefix! = ") { $this->_prefix = $prefix; } if (Is_numeric ($expire) $expire >0) { $this->_expire = $expire; } if (is_string ($securekey) $

>>$b); // use normal right-shift } return $a; } } ?> The Demo instance program is as follows: '; $mstr = AesCtr::encrypt('Hello World', 'key', 256); echo "Encrypt String : $mstr"; $dstr = AesCtr::decrypt($mstr, 'key', 256); echo "Decrypt String : $dstr"; echo 'each not change'; $mstr = AesCtr::encrypt('Hello World', 'key', 256, 1); // keep=1 echo "Encrypt String : $mstr"; $dstr = AesCtr::decrypt($mstr, 'key', 256); echo "Decrypt String : $dstr"; ?> Here we will introdu

First, let's look at the code in Java that decrypts the string:Secret keyPrivate String key = "123456789012345678901234";Decryption process, the first decryption with Base64, and then 3DES for the second decryption, to get the plaintextpublic string Decryptthreedesecb (String src) throws Exception {Desedekeyspec DKs = new Desedekeyspec (key.getbytes (CharSet));Secretkeyfactory keyfactory = secretkeyfactory.getinstance ("Desede");Secretkey SecureKey =

administrator/// Public BOOLISAdmin {Get;Set; }Then write the login interface Public classLogincontroller:apicontroller { Publicloginresult Post ([frombody]loginrequest request) {Loginresult rs=NewLoginresult (); //Suppose the username is "admin" and the password is "123" if(Request. UserName = ="Admin" request. Password = ="123") { //If the user is logged on successfully, the user's identity data can be obtained. Of course, in actual development,

Export eyspec dks = new export eyspec (key) from the original key data; // create a key factory and use it to convert the export eyspec to the SecretKey object SecretKeyFactory keyFactory = SecretKeyFactory. getInstance (DES); SecretKey securekey = keyFactory. generateSecret (dks); // The Cipher object actually completes the encryption operation Cipher cipher = Cipher. getInstance (DES); // use the key to initialize the Cipher object cipher. init (Ci

{// generate a trusted random number source SecureRandom sr = new SecureRandom (); // create the export eyspec object named Export eyspec dks = new export eyspec (key) from the original key data; // create a key factory and use it to convert the export eyspec to the SecretKey object SecretKeyFactory keyFactory = SecretKeyFactory. getInstance (DES); SecretKey securekey = keyFactory. generateSecret (dks); // The Cipher object actually completes the enc

[] datasource, String password) { Try { SecureRandom random = new SecureRandom (); DESKeySpec export ey = new DESKeySpec (password. getBytes ()); // Create a key factory and use it to convert the keyspec SecretKeyFactory keyFactory = SecretKeyFactory. getInstance ("DES "); SecretKey securekey = keyFactory. generateSecret (secret ey ); // The Cipher object actually completes the encryption operation Cipher cipher = Cipher

world ', ' key ', 256); echo "Encrypt String: $mstr"; $dstr = aesctr::d ecrypt ($mstr, ' key ', 256); echo "Decrypt String: $dstr"; Echo ' Each isn't change'; $mstr = Aesctr::encrypt (' Hello world ', ' key ', 256, 1); Keep=1 echo "Encrypt String: $mstr"; $dstr = aesctr::d ecrypt ($mstr, ' key ', 256); echo "Decrypt String: $dstr Here's another way to use PHP mcrypt plus decryption: /* AES Encrypt * @param string $ostr * @param string $securekey

data* @param key 加密键byte数组* @return* @throws Exception*/private static byte[] encrypt(byte[] data, byte[] key) throws Exception {// 生成一个可信任的随机数源SecureRandom sr = new SecureRandom();// 从原始密钥数据创建DESKeySpec对象DESKeySpec dks = new DESKeySpec(key);// 创建一个密钥工厂，然后用它把DESKeySpec转换成SecretKey对象SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(DES);SecretKey securekey = keyFactory.generateSecret(dks);// Cipher对象实际完成加密操作Cipher cipher = Cipher.getInstance(

it to convert Deskeyspec into Secretkeyfactory keyfactory = secretkeyfactory.getinstance ("DES"); Secretkey SecureKey = Keyfactory.generatesecret (Deskey); The Cipher object actually completes the encryption operation Cipher Cipher = cipher.getinstance ("DES"); Initializing a Cipher object with a secret key Cipher.init (Cipher.encrypt_mode, SecureKey, Random); Now, get the data and encrypt it. Form

; CipherInputStream cis = NULL; try {securerandom sr = new SecureRandom ();Deskeyspec DKs = new Deskeyspec (Deskey.getbytes ());Secretkeyfactory keyfactory = secretkeyfactory.getinstance ("DES");Secretkey SecureKey = Keyfactory.generatesecret (DKS);Ivparameterspec IV = new Ivparameterspec (Passkey.getbytes ());Cipher Cipher = cipher.getinstance ("des/cbc/pkcs5padding");Cipher.init (mode, SecureKey, IV,

null; base64decoder decoder = new Base64decoder (); byte[] buf = decoder.decodebuffer (data); byte[] bt = Decrypt (buf, key.getbytes ()); return New String (BT); } /*** Description is encrypted based on the key value** @param data* @param key* Encryption key byte array* @return* @throws Exception*/private static byte[] Encrypt (byte[] data, byte[] key) throws Exception {Generate a trustworthy random number sourcesecurerandom sr = new SecureRandom (); Create a Deskeyspec object from ra

");Secretkey SecureKey = Keyfactory.generatesecret (Deskey);The Cipher object actually completes the cryptographic operationCipher Cipher = cipher.getinstance ("des/ecb/nopadding");Initialize the Cipher object with a keyCipher.init (Cipher.encrypt_mode, SecureKey, Random);Now, get the data and encryptFormally perform cryptographic operationsreturn cipher.dofinal (data);} catch (Throwable e) {E.printstacktra

); //Create a key factory and use it to convert Deskeyspec to a Secretkey objectSecretkeyfactory keyfactory =secretkeyfactory.getinstance (DES); Secretkey SecureKey=Keyfactory.generatesecret (DKS); //The cipher object actually completes the cryptographic operationCipher Cipher =cipher.getinstance (DES); //Initialize the Cipher object with a keyCipher.init (Cipher.encrypt_mode, SecureKey, SR); //now, get the

; // (bounds check) if ($a0x80000000 $b>0) { // if left-most bit set $a = ($a>>1) 0x7fffffff; // right-shift one bit clear left-most bit $a = $a >> ($b-1); // remaining right-shifts } else { // otherwise $a = ($a>>$b); // use normal right-shift } return $a; } } ?> The Demo instance program is as follows: '; $mstr = AesCtr::encrypt('Hello World', 'key', 256); echo "Encrypt String : $mstr"; $dstr = AesCtr::decrypt($mstr, 'key', 256); echo "