Java AESCBC解密后，初始字节不正确

Java AES / CBC解密后，初始字节不正确

由于缺少一些信息，例如忘记转换为base64，初始化向量，字符集等信息，包括我在内的很多人在进行这项工作时都面临很多问题。因此，我想到了编写功能全面的代码。

希望这对大家有用：要进行编译，你需要其他Apache Commons Codec jar，可从以下位置获得：http : //commons.apache.org/proper/commons-prec/download_prec.cgi

import javax.crypto.Cipher;import javax.crypto.spec.IvParameterSpec;import javax.crypto.spec.SecretKeySpec;import org.apache.commons.prec.binary.base64;public class Encryptor {    public static String encrypt(String key, String initVector, String value) {        try { IvParameterSpec iv = new IvParameterSpec(initVector.getBytes("UTF-8")); SecretKeySpec skeySpec = new SecretKeySpec(key.getBytes("UTF-8"), "AES"); Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING"); cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv); byte[] encrypted = cipher.doFinal(value.getBytes()); System.out.println("encrypted string: "         + base64.enprebase64String(encrypted)); return base64.enprebase64String(encrypted);        } catch (Exception ex) { ex.printStackTrace();        }        return null;    }    public static String decrypt(String key, String initVector, String encrypted) {        try { IvParameterSpec iv = new IvParameterSpec(initVector.getBytes("UTF-8")); SecretKeySpec skeySpec = new SecretKeySpec(key.getBytes("UTF-8"), "AES"); Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING"); cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv); byte[] original = cipher.doFinal(base64.deprebase64(encrypted)); return new String(original);        } catch (Exception ex) { ex.printStackTrace();        }        return null;    }    public static void main(String[] args) {        String key = "Bar12345Bar12345"; // 128 bit key        String initVector = "RandomInitVector"; // 16 bytes IV        System.out.println(decrypt(key, initVector,     encrypt(key, initVector, "Hello World")));    }}