importjavax.crypto.spec.SecretKeySpec;importjava.security.Key;importjavax.crypto.Cipher;importjava.util.Base64;publicclassSecretKeySpecExample{publicstaticvoidmain(String[]args)throwsException{Stringkey="mysecretkey";byte[]keyBytes=key.getBytes("UTF-8");SecretKeySpecsecretKeySpec=newSecretKeySpec(keyBy...
importjavax.crypto.spec.SecretKeySpec;importjava.security.Key;publicclassMain{publicstaticvoidmain(String[]args){byte[]keyBytes={0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xDD,0xEE,0xFF,0x00};Keykey=newSecretKeySpec(keyBytes,"AES");System.out.println(key.getAlgor...
import javax.crypto.Cipher; import javax.crypto.spec.SecretKeySpec; import java.nio.charset.StandardCharsets; import java.util.; public class AESEncryption { public static void main(String[] args) throws Exception { String dataToEncrypt = Hello, World!; String key = ThisIsASecretKey; SecretKey...
security.symmetric; import javax.crypto.Cipher; import javax.crypto.spec.IvParameterSpec; import javax.crypto.spec.SecretKeySpec; /** * aes cbc and iv demo. * @author fitz * @version 1.0.0 */ public class AesCbcUtils { // aes cipher mode public static final String CIPHER_ALGORITHM = "...
SecretKeySpecpublic SecretKeySpec(byte[] key, String algorithm)从给定的字节数组构造一个密钥。 此构造函数不检查给定的字节是否确实指定了指定算法的密钥。 例如,如果算法是DES,则此构造函数不检查key是否为8字节长,并且也不检查弱键或半弱键。 为了执行这些检查,应该使用特定于算法的密钥规范类(在这种情况...
import javax.crypto.Cipher; import javax.crypto.spec.IvParameterSpec; import javax.crypto.spec.SecretKeySpec; import sun.misc.BASE64Decoder; import sun.misc.BASE64Encoder; public class AESUtil { private static String key="111"; /** * 加密 ...
keytool:是密钥和证书管理工具。它出自于Java体系,它使用KeyStore来管理密钥和证书。 两者都是可以用来生成加密密钥的工具,keytool出自Java体系,它可以直接操作KeyStore,而OpenSSL不支持直接操作KeyStore。实际情况有可能是这样的,使用OpenSSL生成了密钥或证书,然后使用keytool将其导入到KeyStore以便在Java环境中使用。
// DESKeySpec是一个成加密密钥的密钥内容的(透明)规范的接口。 DESKeySpec desKey = new DESKeySpec(key); // 创建一个密匙工厂,然后用它把DESKeySpec转换成 SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES"); // 得到密钥对象SecretKey ...
SecretKeySpec(byte[] key, int offset, int len,Stringalgorithm) Constructs a secret key from the given byte array, using the firstlenbytes ofkey, starting atoffsetinclusive. SecretKeySpec(byte[] key,Stringalgorithm) Constructs a secret key from the given byte array. ...
importjavax.crypto.*;importjavax.crypto.spec.SecretKeySpec;importjava.io.*;importjava.security.InvalidKeyException;importjava.security.NoSuchAlgorithmException;importjava.security.SecureRandom;importjava.util.Base64;publicclassCryptoCipher{privatestaticfinalintENCRYPT_MODE=Cipher.ENCRYPT_MODE;privatestaticfinalint...