首先,感谢nixda的哈希码!
我是VBA的新手。我正在尝试创建一个接受电子邮件地址并混淆用户名部分的函数,以便可以分发包含混淆后的电子邮件地址的报告。
我将以下内容放入VBA模块中:
Private Function EncodeBase64(ByVal sTextToHash As String)
Dim objXML As Object
Dim objNode As Object
Set objXML = CreateObject("MSXML2.DOMDocument")
Set objNode = objXML.createElement("b64")
objNode.DataType = "bin.base64"
objNode.nodeTypedValue = arrData
EncodeBase64 = objNode.Text
Set objNode = Nothing
Set objXML = Nothing
End Function
Public Function BASE64SHA1(ByVal sTextToHash As String)
Dim asc As Object
Dim enc As Object
Dim TextToHash() As Byte
Dim SharedSecretKey() As Byte
Dim bytes() As Byte
Const cutoff As Integer = 5
Set asc = CreateObject("System.Text.UTF8Encoding")
Set enc = CreateObject("System.Security.Cryptography.HMACSHA1")
TextToHash = asc.GetBytes_4(sTextToHash)
SharedSecretKey = asc.GetBytes_4(sTextToHash)
enc.Key = SharedSecretKey
bytes = enc.ComputeHash_2((TextToHash))
BASE64SHA1 = EncodeBase64(bytes)
BASE64SHA1 = Left(BASE64SHA1, cutoff)
Set asc = Nothing
Set enc = Nothing
End Function
如果我在工作簿中调用该函数,则可以混淆电子邮件地址:
=BASE64SHA1(LEFT(A1,FIND("@",A1)-1))&"@"&MID(A1,FIND("@",A1)+1,999)
因此,如果我通过此功能,我将获得一个带有哈希用户名的电子邮件地址。大!
但我想输入:
=OBFUSCATEEMAIL(A1)
在工作表中
因此,我打开了工作表的VBA模块,到目前为止,我已经:
Public Function ObfuscateEmail(ByVal email As String)
Dim username As String
Dim domain As String
username = Left(email, InStr(email, "@") - 1)
domain = Right(email, Len(email) - InStr(email, "@"))
ObfuscateEmail = BASE64SHA1(username) & "@" & domain
End Function
当我尝试调用此新函数时,出现#VALUE错误!
对BASE64SHA1的调用导致了此问题,但是:
a)从工作表中调用时,我知道BASE64SHA1正在工作,并且
b)我将ObfuscateEmail正常工作,直到将调用添加到BASE64SHA1
我究竟做错了什么?