package com.hx.dlms.cipher; import java.security.InvalidKeyException; import java.security.NoSuchAlgorithmException; import javax.crypto.BadPaddingException; import javax.crypto.Cipher; import javax.crypto.IllegalBlockSizeException; import javax.crypto.NoSuchPaddingException; import javax.crypto.spec.SecretKeySpec; import cn.hexing.fk.utils.HexDump; public class AESECB128 { private static final byte[] staticKey = HexDump.toByteBuffer("00000000000000000000000000000000").array(); public static byte[] encrypt(byte[] plainText) { return encrypt(plainText,staticKey); } /** * 加密 * * @param content * 需要加密的内容 * @param enckey * 加密密码 * @return */ public static byte[] encrypt(byte[] content, byte[] enckey) { try { SecretKeySpec key = new SecretKeySpec(enckey, "AES"); Cipher cipher = Cipher.getInstance("AES/ECB/NoPadding");// 创建密码器 cipher.init(Cipher.ENCRYPT_MODE, key);// 初始化 byte[] result = cipher.doFinal(content); return result; // 加密 } catch (NoSuchAlgorithmException e) { e.printStackTrace(); } catch (NoSuchPaddingException e) { e.printStackTrace(); } catch (InvalidKeyException e) { e.printStackTrace(); } catch (IllegalBlockSizeException e) { e.printStackTrace(); } catch (BadPaddingException e) { e.printStackTrace(); } return null; } public static byte[] decrypt(byte[] cipherText) { return decrypt(cipherText,staticKey); } /** * 解密 * * @param content * 待解密内容 * @param deckey * 解密密钥 * @return */ public static byte[] decrypt(byte[] content, byte[] deckey) { try { SecretKeySpec key = new SecretKeySpec(deckey, "AES"); Cipher cipher = Cipher.getInstance("AES/ECB/NoPadding");// 创建密码器 cipher.init(Cipher.DECRYPT_MODE, key);// 初始化 byte[] result = cipher.doFinal(content); return result; // 加密 } catch (NoSuchAlgorithmException e) { e.printStackTrace(); } catch (NoSuchPaddingException e) { e.printStackTrace(); } catch (InvalidKeyException e) { e.printStackTrace(); } catch (IllegalBlockSizeException e) { e.printStackTrace(); } catch (BadPaddingException e) { e.printStackTrace(); } return null; } public static void main(String[] args) { String content = "6789:;<=>?@AB012"; String password = "00000000000000000000000000000000"; byte[] mykey = HexDump.toByteBuffer(password).array(); // 加密 System.out.println("加密前:" + content); byte[] encryptResult = encrypt(content.getBytes(), mykey); System.out.println("cipher text: " + HexDump.hexDumpCompact(encryptResult,0,encryptResult.length)); // 解密 byte[] decryptResult = decrypt(encryptResult, mykey); System.out.println("解密后:" + new String(decryptResult)); } }
AES-ECB-128加密算法
要加密或解密的数据必须是16的倍数。
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转载自qq54903099.iteye.com/blog/1753758
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