Asp classic 如何使用AES在VBScript中加密？

我希望使用特定的密钥和值来加密一些数据。有好的函数库或COM组件可以使用吗

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我看了看；它只允许密码短语，不允许设置特定的key和IV值。

一个选项是在.NET中为.NET framework中的创建一个简单的包装类，并通过公开它，以便您可以从VBScript调用它。

一个响应建议在COM中包装

RijndaelManaged

类。您还可以在COM中封装一些其他AES实现。我刚刚试过，这是AES的JavaScript实现。通过Windows脚本组件在COM中包装它，可以从VBScript调用它。只有当您不能使用.NET方法时，我才建议您这样做；我猜.NET的AES将比JavaScript实现的AES更快

在对COM包装的SlowAEs的测试中，我使用了CBC模式，加密与.NET中的RijndaelManaged类完全兼容

这是WSC；我遗漏了SlowAES提供的3.js文件。您需要在我标记文件的位置插入它们

<?xml version="1.0"?>

<!--

//
// Ionic.COM.SlowAES.wsc
//
// This is a Windows Script Component that exposes the SlowAES
// encryption engine via COM. This AES can be used from any 
// COM-capable environment, including Javascript or VBScript. 
//
//
// This code is licensed under the Microsoft Public License. See the
// accompanying License.txt file for details.
//
// Copyright 2009 Dino Chiesa
//

-->

<package>

<component id="Ionic.Com.SlowAES">

  <comment>
SlowAES is a Javascript implementation of AES.  
     See http://code.google.com/p/slowaes.  
This is a COM package for SlowAES.
  </comment>

<?component error="true" debug="true"?>

<registration
  description="WSC Component for SlowAES"
  progid="Ionic.Com.SlowAES"
  version="1.00"
  classid="{ba78383f-1bcc-4df6-9fb9-61cd639ebc94}"
  remotable="False">

  <!-- boilerplate registration/unregistration logic -->
  <script language="VBScript">
  <![CDATA[

strComponent = "Ionic SlowAES"

Function Register
  MsgBox strComponent & " - registered."
End Function

Function Unregister
  MsgBox strComponent & " - unregistered."
End Function

  ]]>
  </script>
</registration>

<public>
  <method name="EncryptString">
<parameter name="plainText"/>
  </method>

  <method name="DecryptBytes">
<parameter name="cipherText"/>
  </method>

  <method name="DecryptBytesToString">
<parameter name="cipherText"/>
  </method>

  <method name="DecryptHexString">
<parameter name="hexStringCipherText"/>
  </method>

  <method name="DecryptCommaDelimitedStringToString">
<parameter name="cipherText"/>
  </method>

  <property name="Key">
  <put/>
  </property>

  <property name="Mode">
  <put/>
  <get/>
  </property>

  <property name="IV">
  <put/>
  <get/>
  </property>

  <property name="KeySize">
  <put/>
  <get/>
  </property>
</public>

<script language="JavaScript">
<![CDATA[

// ...insert slowAES code here... //

// defaults
var _keysize = slowAES.aes.SIZE_128;
var _mode = slowAES.modeOfOperation.CBC;
var _iv = [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0];
var _key;

/* 
* byteArrayToHexString
* convert a byte array to hex string.
*/
function byteArrayToHexString(a)
{
try { hexcase } catch(e) { hexcase=0; }
var hex_tab = hexcase ? "0123456789ABCDEF" : "0123456789abcdef";
var r= "";
for (var i = 0; i < a.length; i++)
{
    var b  = hex_tab.charAt((a[i] >> 4) & 0x0F) + 
    hex_tab.charAt(a[i] & 0x0F);
    r+= b;
}
return r;
}

/* 
* hexStringToByteArray
* convert a string of hex byts to a byte array
*/
function hexStringToByteArray(s)
{
var r= Array(s.length/2);
for (var i = 0; i < s.length; i+=2)
{
    r[i/2] = parseInt(s.substr(i,2),16);
}
return r;
}

function EncryptString(plainText)
{
 var bytesToEncrypt = cryptoHelpers.convertStringToByteArray(plainText);
 var result = slowAES.encrypt(bytesToEncrypt, 
     _mode,
     _key,
     _keysize,
     _iv);
return result['cipher'];
}

function DecryptBytesToString(cipherText)
{
var d = DecryptBytes(cipherText);
var s = cryptoHelpers.convertByteArrayToString(d);
s[cipherText.length]= 0;
return s;
}

function DecryptHexString(hexStringCipherText)
{
var cipherText = hexStringToByteArray(hexStringCipherText);
return DecryptBytesToString(cipherText);
}

function DecryptCommaDelimitedStringToString(cipherText)
{
var c = [];
var atoms = cipherText.split(",");
for (i=0; i < atoms.length; i++)
{
    c.push(parseInt(atoms[i], 10));
}
var d = DecryptBytes(c);
return cryptoHelpers.convertByteArrayToString(d);
}

function DecryptBytes(cipherText)
{
if (cipherText == undefined) return null;

var originalSize = cipherText.length;

var result = slowAES.decrypt(cipherText, 
    originalSize,
    _mode,
    _key,
    _keysize,
    _iv);

return result;
}

function put_Key(keyString)
{
  _key = hexStringToByteArray(keyString);
}

function put_KeySize(size)
{
if (size == 128) _keysize = slowAES.aes.keySize.SIZE_128;
else if (size == 192) _keysize = slowAES.aes.keySize.SIZE_192;
else if (size == 256) _keysize = slowAES.aes.keySize.SIZE_256;
else
    throw "Unsupported key size.  Must be one of { 128, 192, 256 }.";
}

function get_KeySize()
{
if (_keysize == slowAES.aes.keySize.SIZE_128) return 128;
else if (_keysize == slowAES.aes.keySize.SIZE_192) return 192;
else if (_keysize == slowAES.aes.keySize.SIZE_256) return 256;
else return -1;
}

function put_IV(ivString)
{
    _iv = hexStringToByteArray(ivString);
}

function get_IV()
{
return byteArrayToHexString(_iv);
}

function put_Mode(mode)
{
if (mode == "CBC") _mode= slowAES.modeOfOperation.CBC;
else if (mode == "OFB") _mode= slowAES.modeOfOperation.OFB;
else if (mode == "CFB") _mode= slowAES.modeOfOperation.CFB;
else throw "Unsupported mode.  Must be one of {CBC, OFB, CFB}";
}

function get_Mode()
{
if (_mode == slowAES.modeOfOperation.CBC) return "CBC";
if (_mode == slowAES.modeOfOperation.OFB) return "OFB";
if (_mode == slowAES.modeOfOperation.CFB) return "CFB";
return "???";
}

]]>

</script>

</component>

</package>

SlowAES是AES的Javascript实现。
看见http://code.google.com/p/slowaes.  
这是一个为懒汉们准备的COM软件包。
>4）&0x0F）+
十六进制制表符（a[i]&0x0F）；
r+=b；
}
返回r；
}
/* 
*六字节数组
*将十六进制字节字符串转换为字节数组
*/
函数HexstringToByte数组
{
var r=数组（s.length/2）；
对于（变量i=0；i

将其保存到名为SlowAES.wsc的文件中。用“regsvr32 SlowAES.wsc”注册它 下面是一些使用该组件的VBScript代码

' '
' byteArrayToHexString'
' convert a byte array to hex string.'
' '
Function byteArrayToHexString(a)
Dim r,b,i
r = ""
For i = 0 To UBound(a)
    b = Hex( (a(i) And &HF0) / 16) & Hex(a(i) And &HF)
    r= r & b
Next
byteArrayToHexString= r
End Function

' '
' hexStringToByteArray'
' convert a string of hex byts to a byte array'
' '
Function hexStringToByteArray(s)
Dim r()
ReDim r(Len(s)/2-1)
Dim x
For i = 0 To  Len(s)-2 Step 2
    x= "&H" & Mid(s,i+1,2)
    r(i/2) = CInt(x)
Next
hexStringToByteArray= r
End Function

Function DemoEncryption()
WScript.echo "Testing Ionic.Com.SlowAES..."

WScript.echo "key:              " & byteArrayToHexString(key)
WScript.echo "iv:               " & byteArrayToHexString(iv)
WScript.echo "key length:       " & keyLengthInBytes & " bytes"
WScript.echo "key length:       " & (keyLengthInBytes*8) & " bits"
WScript.echo "plaintext:        " & plaintext
WScript.echo "plaintext.length: " & Len(plaintext)

WScript.echo "instantiate Ionic.Com.SlowAES"
Dim aes
set aes = CreateObject("Ionic.Com.SlowAES")

WScript.echo "keysize"
aes.KeySize = keyLengthInBytes * 8

WScript.echo "key"
aes.Key = byteArrayToHexString(key)

WScript.echo "iv "
aes.IV= byteArrayToHexString(iv)

WScript.echo "mode "
aes.Mode = "CBC"

WScript.echo "encrypting... "
Dim result
result= aes.EncryptString(plaintext)

' result is a comma-separated string '
' if we Eval() on it we convert it to an array '
Dim expr
expr = "Array(" & result & ")" 

result= Eval( expr )

WScript.echo "Cryptotext/Eval: " & byteArrayToHexString(result)
WScript.echo "Cryptotext.length: " & UBound(result)+1

WScript.echo "decrypting... "
Dim decrypted
'The javascript way to do this is to pass the byte array.'
' Like so:'
'    var decrypted = aes.DecryptBytesToString(result);'
' '
'This does not work from VBScript. So, convert to a hexstring,'
'pass the hex string, and then convert back, in the COM component.'
decrypted= aes.DecryptHexString(byteArrayToHexString(result))

WScript.echo "decrypted: " & decrypted
End Function

dim plaintext, iv, key, keyLengthInBytes

plaintext= "Hello. This is a test. of the emergency broadcasting system."
' iv must be a hexstring representation of an array of bytes, length=16'
iv =  hexStringToByteArray("feedbeeffeedbeefbaadf00dbaadf00d")
' key must be a hexstring representation of an array of bytes, length=16 or 32'
key = hexStringToByteArray("cafebabe0099887766554433221100AA")
keyLengthInBytes= UBound(key)+1

If Err.Number <> 0 Then Err.Clear

Call DemoEncryption

If (Err.Number <> 0) Then WScript.echo("Error: " & Err.Description)

“”
“ByteArrayTohextString”
'将字节数组转换为十六进制字符串。'
' '
函数byteArrayToHexString（a）
暗r，b，i
r=“”
对于i=0到UBound（a）
b=十六进制（（a（i）和&HF0）/16）和十六进制（a（i）和&HF）
r=r&b
下一个
ByteArrayTohextString=r
端函数
' '
“hexStringToByteArray”
'将十六进制字节字符串转换为字节数组'
' '
函数HexstringToByte数组
dimr（）
雷迪姆r（镜头）/2-1
暗x
对于i=0到Len（s）-2步骤2
x=“&H”&Mid（s，i+1,2）
r（i/2）=CInt（x）
下一个
hexStringToByteArray=r
端函数
函数DemoEncryption（）
WScript.echo“正在测试Ionic.Com.SlowAES…”
WScript.echo“键：&byteArrayToHexString（键）
WScript.echo“iv:&byteArrayToHexString（iv）
WScript.echo“密钥长度：&keylenghthinbytes&“字节”
WScript.echo“密钥长度：&（密钥长度字节*8）和“位”
WScript.echo“纯文本：&纯文本
WScript.echo“plaintext.length:&Len（纯文本）
WScript.echo“实例化Ionic.Com.SlowAES”
暗aes
设置aes=CreateObject（“Ionic.Com.SlowAES”）
WScript.echo“keysize”
aes.KeySize=keyLengthInBytes*8
WScript.echo“键”
aes.Key=byteArrayToHexString（Key）
WScript.echo“iv”
aes.IV=字节数组字节字符串（IV）
WScript.echo“模式”
aes.Mode=“CBC”
WScript.echo“加密…”
模糊结果
结果=aes.EncryptString（纯文本）
'结果是逗号分隔的字符串'
'如果对其求值（），则将其转换为数组'
Dim expr
expr=“数组（&result&）”
结果=评估（expr）
WScript.echo“Cryptotext/Eval:&byteArrayToHexString（结果）
WScript.echo“Cryptotext.length:&UBound（结果）+1
WScript.echo“正在解密…”
暗解密
'javascript实现这一点的方法是传递字节数组。'
“像这样：”
'var decrypted=aes.DecryptBytesToString（结果）；'
' '
'这在VBScript中不起作用。所以，转换为一个十六进制字符串，'
'在COM组件中传递十六进制字符串，然后转换回
'-----------------------------------------------------
Dim obj,arr,i,r,str,enc,asc
dim bytes,bytesd,s,sc,sd
set obj=WScript.CreateObject("System.Security.Cryptography.RijndaelManaged")
Set asc = CreateObject("System.Text.UTF8Encoding")
s="This is a private message"
bytes=asc.GetBytes_4(s)
obj.GenerateKey()
obj.GenerateIV()
set enc=obj.CreateEncryptor()
set dec=obj.CreateDecryptor()

bytec=enc.TransformFinalBlock((bytes),0,lenb(bytes))
sc=asc.GetString((bytec))
msgbox sc

byted=dec.TransformFinalBlock((bytec),0,lenb(bytec))
sd=asc.GetString((byted))
msgbox sd
'-----------------------------------------------------