Êþº¾ 4 ÷ chat/security/DES java/lang/Object Encrypt_Password Ljava/lang/String; ConstantValue abcdefgh iv [B aes_key <clinit> ()V Code
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LineNumberTable LocalVariableTable <init>
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this Lchat/security/DES;
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decryptDES &(Ljava/lang/String;)Ljava/lang/String;
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Exceptions java/lang/Exception
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! # " java/util/Base64 $ %
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getDecoder ()Ljava/util/Base64$Decoder;
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' ) ( java/util/Base64$Decoder * + decode (Ljava/lang/String;)[B - !javax/crypto/spec/IvParameterSpec
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, / 0 ([B)V 2 javax/crypto/spec/SecretKeySpec
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4 6 5 java/lang/String 7 8 getBytes ()[B : DES
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1 < = ([BLjava/lang/String;)V ? DES/CBC/PKCS5Padding
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A C B javax/crypto/Cipher D E getInstance )(Ljava/lang/String;)Ljavax/crypto/Cipher;
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A G H I init B(ILjava/security/Key;Ljava/security/spec/AlgorithmParameterSpec;)V
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A K L M doFinal ([B)[B
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4 / decryptString byteMi zeroIv #Ljavax/crypto/spec/IvParameterSpec; key !Ljavax/crypto/spec/SecretKeySpec; cipher Ljavax/crypto/Cipher; decryptedData Y [ Z java/lang/System \ ] out Ljava/io/PrintStream; _ %Error int key error, secret incorrect
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a c b java/io/PrintStream d e println (Ljava/lang/String;)V secret i I StackMapTable
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encryptDES
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! l m n
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getEncoder ()Ljava/util/Base64$Encoder;
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p r q java/util/Base64$Encoder s M encode encryptString encryptedData encrypt x !java/security/InvalidKeyException z &java/security/NoSuchAlgorithmException | *java/security/spec/InvalidKeySpecException ~ #javax/crypto/NoSuchPaddingException &javax/crypto/IllegalBlockSizeException javax/crypto/BadPaddingException java/security/SecureRandom
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javax/crypto/spec/DESKeySpec
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/
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javax/crypto/SecretKeyFactory D 3(Ljava/lang/String;)Ljavax/crypto/SecretKeyFactory;
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generateSecret 6(Ljava/security/spec/KeySpec;)Ljavax/crypto/SecretKey;
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A H 3(ILjava/security/Key;Ljava/security/SecureRandom;)V
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datasource random Ljava/security/SecureRandom; desKey Ljavax/crypto/spec/DESKeySpec;
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keyFactory Ljavax/crypto/SecretKeyFactory; securekey Ljavax/crypto/SecretKey; decrypt src
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AESEncrypt ((Ljava/lang/String;Ljava/lang/String;)[B
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£ ¤ ([BLjava/lang/String;)[B sSrc userKey ([B[B)[B © Key为空null
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Y ´ µ ¶ currentTimeMillis ()J è ZI ÿ ÿ
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Y À Á Â arraycopy *(Ljava/lang/Object;ILjava/lang/Object;II)V
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Ä Å printStackTrace tobeencrypdata aesKey skeySpec curhour tobeencrypdatawithtime byte0 B byte1 byte2 byte3 encrypted e Ljava/lang/Exception;
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4 Ô Õ Ö isEmpty ()Z
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Ø Ù + convertUserKey
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Û § getUnsignedByte (B)I data
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4 á â ã charAt (I)C
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AESDecrypt ([BLjava/lang/String;Z)[B
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ç Ý Þ
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é ê ë toString ()Ljava/lang/String; checkTime Z original hours neworiginal ex
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SourceFile DES.java InnerClasses Decoder Encoder !
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