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(Classic ASP) Generate TOTP using Base32 Secret (6 Digits, Time-based, 30-second period)Generates a 6-digit time-based TOTP code using a base32 secret with a 30-second time period.
<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> </head> <body> <% ' This example requires the Chilkat API to have been previously unlocked. ' See Global Unlock Sample for sample code. ' ' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Crypt2") set crypt = Server.CreateObject("Chilkat.Crypt2") ' Base32 secret key: secretKey = "oebf ytfl qmzb p4xd 2ztf zyz4 hjrw 3uyo" ' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.StringBuilder") set sbKey = Server.CreateObject("Chilkat.StringBuilder") success = sbKey.Append(secretKey) ' Remove SPACE chars. numRemoved = sbKey.Replace(" ","") ' Note: A new token is generated every 30 seconds. You must generate within the same 30 second interval to get the same result. ' Generate 6 digits. numDigits = 6 ' 30 second time period. timePeriod = 30 Response.Write "<pre>" & Server.HTMLEncode( "Your token is: " & crypt.Totp(sbKey.GetAsString(),"base32","0","",timePeriod,numDigits,-1,"sha1")) & "</pre>" %> </body> </html> |
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