如何在經典 ASP 中使用 VBScript 生成 MD5?
我需要在我的應用程序中生成一個 MD5。
我試過Google,但只能找到 MD5 的 PHP 程式碼。我需要連接到使用 MD5 雜湊驗證的客戶端系統,但他們的程式碼是 PHP,我的是使用 VBScript 的經典 ASP。
我的伺服器支持 .Net,所以我不能使用 PHP 腳本。Classic ASP 中的 VBScript 是否有這樣的 MD5 程式碼?
2017-02-21 更新 - 現在為 JWT 添加了 HMACSHA256
2016-07-05 更新 - 現在添加了 SHA1 和 SHA256
是的,對於所有一直在努力解決這個問題的人(比如我自己)並想知道,這是可能的!
以下程式碼分為幾個函式,以便您可以 MD5/sha1/sha256 字元串或文件。
我從另一個 stackexchange 借用了 GetBytes 和 BytesToBase64 函式,而 stringToUTFBytes 中的程式碼是基於另一個 stackexchange 的。
function md5hashBytes(aBytes) Dim MD5 set MD5 = CreateObject("System.Security.Cryptography.MD5CryptoServiceProvider") MD5.Initialize() 'Note you MUST use computehash_2 to get the correct version of this method, and the bytes MUST be double wrapped in brackets to ensure they get passed in correctly. md5hashBytes = MD5.ComputeHash_2( (aBytes) ) end function function sha1hashBytes(aBytes) Dim sha1 set sha1 = CreateObject("System.Security.Cryptography.SHA1Managed") sha1.Initialize() 'Note you MUST use computehash_2 to get the correct version of this method, and the bytes MUST be double wrapped in brackets to ensure they get passed in correctly. sha1hashBytes = sha1.ComputeHash_2( (aBytes) ) end function function sha256hashBytes(aBytes) Dim sha256 set sha256 = CreateObject("System.Security.Cryptography.SHA256Managed") sha256.Initialize() 'Note you MUST use computehash_2 to get the correct version of this method, and the bytes MUST be double wrapped in brackets to ensure they get passed in correctly. sha256hashBytes = sha256.ComputeHash_2( (aBytes) ) end function function sha256HMACBytes(aBytes, aKey) Dim sha256 set sha256 = CreateObject("System.Security.Cryptography.HMACSHA256") sha256.Initialize() sha256.key=aKey 'Note you MUST use computehash_2 to get the correct version of this method, and the bytes MUST be double wrapped in brackets to ensure they get passed in correctly. sha256HMACBytes = sha256.ComputeHash_2( (aBytes) ) end function function stringToUTFBytes(aString) Dim UTF8 Set UTF8 = CreateObject("System.Text.UTF8Encoding") stringToUTFBytes = UTF8.GetBytes_4(aString) end function function bytesToHex(aBytes) dim hexStr, x for x=1 to lenb(aBytes) hexStr= hex(ascb(midb( (aBytes),x,1))) if len(hexStr)=1 then hexStr="0" & hexStr bytesToHex=bytesToHex & hexStr next end function Function BytesToBase64(varBytes) With CreateObject("MSXML2.DomDocument").CreateElement("b64") .dataType = "bin.base64" .nodeTypedValue = varBytes BytesToBase64 = .Text End With End Function 'Special version that produces the URLEncoded variant of Base64 used in JWTs. Function BytesToBase64UrlEncode(varBytes) With CreateObject("MSXML2.DomDocument").CreateElement("b64") .dataType = "bin.base64" .nodeTypedValue = varBytes BytesToBase64UrlEncode = replace(replace(replace(replace(replace(.Text,chr(13),""),chr(10),""),"+", "-"),"/", "_"),"=", "") End With End Function Function GetBytes(sPath) With CreateObject("Adodb.Stream") .Type = 1 ' adTypeBinary .Open .LoadFromFile sPath .Position = 0 GetBytes = .Read .Close End With End Function這些可以按如下方式使用:
BytesToBase64(md5hashBytes(stringToUTFBytes("Hello World")))產生:sQqNsWTgdUEFt6mb5y4/5Q==
bytesToHex(md5hashBytes(stringToUTFBytes("Hello World")))生產:B10A8DB164E0754105B7A99BE72E3FE5
對於 SHA1:
bytesToHex(sha1hashBytes(stringToUTFBytes("Hello World")))生產:0A4D55A8D778E5022FAB701977C5D840BBC486D0
對於 SHA256:
bytesToHex(sha256hashBytes(stringToUTFBytes("Hello World")))生產:A591A6D40BF420404A011733CFB7B190D62C65BF0BCDA32B57B277D9AD9F146E
獲取文件的 MD5(對 Amazon S3 MD5 檢查很有用):
BytesToBase64(md5hashBytes(GetBytes(sPath)))其中 sPath 是本地文件的路徑。
最後,創建 JWT:
'define the JWT header, needs to be converted to UTF bytes: aHead=stringToUTFBytes("{""alg"":""HS256"",""typ"":""JWT""}") 'define the JWT payload, again needs to be converted to UTF Bytes. aPayload=stringToUTFBytes("{""sub"":""1234567890"",""name"":""John Doe"",""admin"":true}") 'Your shared key. theKey="mySuperSecret" aSigSource=stringToUTFBytes(BytesToBase64UrlEncode(aHead) & "." & BytesToBase64UrlEncode(aPayload)) 'The full JWT correctly Base 64 URL encoded. aJWT=BytesToBase64UrlEncode(aHead) & "." & BytesToBase64UrlEncode(aPayload) & "." & BytesToBase64UrlEncode(sha256HMACBytes(aSigSource,stringToUTFBytes(theKey)))這將產生以下有效的 JWT:eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiYWRtaW4iOnRydWV9.7ofvtkn0z_pTl6WcqRTxw-4eSE3NqcEq9
這是一個可讀和可下載的 MD5 版本作為 VBS 腳本:
https://github.com/Wikinaut/md5.vbs
這是來自http://chayoung.tistory.com/entry/VBScript-MD5的程式碼(感謝您提供這段獨特的程式碼)。