Data="https://bbs.csdn.net/topics/ft+j7fuddoLtNSZ86TuO/eVkrhuCbhTUSeYiKwIh3nbM44HywhG2radHpfd8U4BEmiyyltT34W9on2oJxOBAx0nIVGEK/AV5vOsBuEaqAgv7d27oUYx/nL7rPfPOJa5WI6e3ceDlKtpiCjYrdmrGZQ4XXTkCZKEmOZJqPpH9nJdYPx16kF6Cx5+PPkE5BudUT0ID6GsRvzUIb/9NOmeeJmEo1dUgkj4GQ2Bgx8rVMtl+b3sIwiki2C/5jupPuTZMly29iF0qwy4/Hl83yJOcGT7zb98nZXf4Q3B6aZbBi1XJO6Gxq4hewOKU7rix0IwkWnE0dAleAx4zf3d5os19IZdzzhWEjpKZ4Pd2vWqR0fM=" 

Key="oGZLywjAdsoBzhqx54piAQ==" 

'because there is no set iv, so the decryption is garbled 
Response. Write (aes_des (data)) 
The Function aes_dec (STR) 
Set the aes=CreateObject (" System. Security. Cryptography. RijndaelManaged ") 
Set the utf8=CreateObject (" System. Text. UTF8Encoding "and) 
Aes. The Mode=1 '1: CBC, 2: the ECB, 3: ofb, 4: CFB, 5: CTS 
Aes. The Padding=2 '1: don't fill, 2: pkcs7, 3: zero, 4: ansix923, 5: ISO10126 
Aes. The KeySize=128 
Aes. BlockSize=128 

Aes. Key=Base64ToByte (Key) 
'aes. Key=???? 'here I don't know how to set the 
The set dec=aes. CreateDecryptor () 

Byted=Base64ToByte (STR) 

Byted=dec. TransformFinalBlock ((byted), 0, lenb (byted)) 
Byted=utf8. Get string ((byted)) 
Aes_dec=byted 
End the Function 

 
Using System; 
using System.Collections.Generic; 
using System.Text; 
Using System. Security. Cryptography. 
Using System. IO; 
The namespace Aop. Api. Util 
{
The class AlipayEncrypt 
{

///& lt; Summary> 
///128 0 vector 
///& lt;/summary> 
Private static byte [] AES_IV=initIv (16); 

///& lt; Summary> 
///the initialization vector 
///& lt;/summary> 
///& lt; Param name="blockSize & gt;"  
///& lt; Returns>  
Private static byte [] initIv (int blockSize) 
{
Byte []=new iv byte [blockSize]; 
For (int I=0; i {
Iv [I]=0 x0 (byte); 
} 
Return the iv; 

} 
///& lt; Summary> 
///AES encryption 
///& lt;/summary> 
///& lt; Param name="the encryptKey & gt;"  
///& lt; Param name="bizContent & gt;"  
///& lt; Param name="charset" & gt;  
///& lt; Returns>  
Public static string AesEncrypt (string the encryptKey, string bizContent, string charset) 
{

Byte [] keyArray.=the Convert FromBase64String (the encryptKey); 
Byte [] toEncryptArray=null; 

If (string. IsNullOrEmpty (charset)) 
{
ToEncryptArray=Encoding. UTF8. GetBytes (bizContent); 
} 
The else 
{
ToEncryptArray=Encoding. GetEncoding (charset). GetBytes (bizContent); 
} 

System. Security. Cryptography. RijndaelManaged rDel=new System. Security. Cryptography. The RijndaelManaged (); 
RDel. Key=keyArray; 
RDel. Mode=System. Security. Cryptography. CipherMode. The CBC. 
RDel. Padding=System. Security. Cryptography. PaddingMode. PKCS7; 
RDel.=AES_IV IV; 

System. Security. Cryptography. ICryptoTransform cTransform=rDel. CreateEncryptor rDel. Key, rDel. (IV); 
Byte [] resultArray=cTransform. TransformFinalBlock (toEncryptArray, 0, toEncryptArray. Length); 


Return the Convert. ToBase64String (resultArray); 

} 

///& lt; Summary> 
///AES decryption 
///& lt;/summary> 
///& lt; Param name="the encryptKey & gt;"  
///& lt; Param name="bizContent & gt;"  
///& lt; Param name="charset" & gt;  
///& lt; Returns>  
Public static string AesDencrypt (string the encryptKey, string bizContent, string charset) 
{
Byte [] keyArray.=the Convert FromBase64String (the encryptKey); 
Byte [] toEncryptArray=the Convert. FromBase64String (bizContent); 

System. Security. Cryptography. RijndaelManaged rDel=new System. Security. Cryptography. The RijndaelManaged (); 
RDel. Key=keyArray; 
RDel. Mode=System. Security. Cryptography. CipherMode. The CBC. 
RDel. Padding=System. Security. Cryptography. PaddingMode. PKCS7; 
RDel.=AES_IV IV; 

System. Security. Cryptography. ICryptoTransform cTransform=rDel. CreateDecryptor (rDel. Key, rDel. IV); 
Byte [] resultArray=cTransform. TransformFinalBlock (toEncryptArray, 0, toEncryptArray. Length); 


If (string. IsNullOrEmpty (charset)) 
{
Return. Encoding UTF8. Get string (resultArray); 
} 
The else 
{
Return Encoding. GetEncoding (charset). Get string (resultArray); 
} 


} 
} 


} 

CodePudding user response:

 Public AES_IV () As Byte=InitIv () 
The Function InitIv () 
ReDim AES_IV (0 To 15) 
For I=0 To 15 
AES_IV (I)=0 
Next 
Return AES_IV 
End the Function 

CodePudding user response: