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2021-02-18 5b8c95c760840f09910730943b21391e47187315

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chat/security/AES
java/lang/Object
aes_key
[B
<clinit>
()V
Code    

LineNumberTable
LocalVariableTable
<init>

this
Lchat/security/AES;
init
([B)V    
java/lang/System
out
Ljava/io/PrintStream;
%Error int key error, secret incorrect
 
java/io/PrintStream!"
println
(Ljava/lang/String;)V
secret

i

I
 StackMapTable

AESEncrypt
((Ljava/lang/String;Ljava/lang/String;)[B
*,+
java/lang/String-.
getBytes
()[B

0'1
([BLjava/lang/String;)[B
sSrc
Ljava/lang/String;
userKey
([B[B)[B7
 Key为空null
9:"
print<
Key长度不是16位>
javax/crypto/spec/SecretKeySpec@
AES
=BC
([BLjava/lang/String;)VE
AES/CBC/PKCS5Padding
GIH
javax/crypto/CipherJK
getInstance
)(Ljava/lang/String;)Ljavax/crypto/Cipher;M
!javax/crypto/spec/IvParameterSpec
LO
GQR
B(ILjava/security/Key;Ljava/security/spec/AlgorithmParameterSpec;)V
TUV
currentTimeMillis
()JèZI    €ÿÿ
`ab
    arraycopy
*(Ljava/lang/Object;ILjava/lang/Object;II)V
Gdef
doFinal
([B)[B
hji
&java/security/NoSuchAlgorithmExceptionk
printStackTrace
mjn
#javax/crypto/NoSuchPaddingException
pjq
!java/security/InvalidKeyException
sjt
0java/security/InvalidAlgorithmParameterException
vjw
&javax/crypto/IllegalBlockSizeException
yjz
 javax/crypto/BadPaddingException
tobeencrypdata
aesKey
skeySpec
!Ljavax/crypto/spec/SecretKeySpec;
cipher
Ljavax/crypto/Cipher;
iv
#Ljavax/crypto/spec/IvParameterSpec;
curhour
tobeencrypdatawithtime
byte0

B
byte1
byte2
byte3
    encrypted

e
(Ljava/security/NoSuchAlgorithmException;
%Ljavax/crypto/NoSuchPaddingException;
#Ljava/security/InvalidKeyException;
2Ljava/security/InvalidAlgorithmParameterException;
(Ljavax/crypto/IllegalBlockSizeException;
"Ljavax/crypto/BadPaddingException;
*“”•
isEmpty
()Z

—˜™
convertUserKey
(Ljava/lang/String;)[B

›'5
getUnsignedByte
(B)I
data
*¡¢£
charAt
(I)C
key

AESDecrypt
([BLjava/lang/String;Z)[B

¨¥©
    ([B[BZ)[B
    checkTime

Z

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¯±°
java/lang/Exception²³
toString
()Ljava/lang/String;
original
hours
neworiginal
Ljava/lang/Exception;
ex

SourceFile
AES.java!


 

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