package com.zving.booklib.resource.util; import java.security.InvalidKeyException; import java.security.NoSuchAlgorithmException; import java.util.Arrays; import javax.crypto.BadPaddingException; import javax.crypto.Cipher; import javax.crypto.IllegalBlockSizeException; import javax.crypto.NoSuchPaddingException; import javax.crypto.spec.SecretKeySpec; import org.bouncycastle.util.encoders.Base64; /* * 加密工具类 */ public class ASEUtil { private static final String PASS_NEED = "1qaz2wsx3edc4rfv"; private static SecretKeySpec key; private static Cipher encCipher = null; private static Cipher decCipher = null; static { byte[] enCodeFormat = Arrays.copyOf(PASS_NEED.getBytes(), 16); key = new SecretKeySpec(enCodeFormat, "AES"); try { encCipher = Cipher.getInstance("AES/ECB/PKCS5Padding"); encCipher.init(Cipher.ENCRYPT_MODE, key); decCipher = Cipher.getInstance("AES/ECB/PKCS5Padding"); decCipher.init(Cipher.DECRYPT_MODE, key); } catch (NoSuchAlgorithmException e) { e.printStackTrace(); } catch (NoSuchPaddingException e) { e.printStackTrace(); } catch (InvalidKeyException e) { e.printStackTrace(); } } public static String encryData(String plaintData) throws IllegalBlockSizeException, BadPaddingException { byte result[] = encCipher.doFinal(plaintData.getBytes()); return new String(Base64.encode(result)); } public static String decryData(String encData) throws Exception { byte result[] = decCipher.doFinal(Base64.decode(encData.getBytes())); return new String(result); } public static byte[] encryData(byte[] plaintData) throws IllegalBlockSizeException, BadPaddingException { byte result[] = encCipher.doFinal(plaintData); return result; } public static byte[] decryData(byte[] encData) throws IllegalBlockSizeException, BadPaddingException { byte result[] = decCipher.doFinal(encData); return result; } }
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