asp.net - C# Winform Application: Decoding 64bit Web Tokens On 32bit Client Machines -



asp.net - C# Winform Application: Decoding 64bit Web Tokens On 32bit Client Machines -

my company has eternal pointing web server allows our clients finish questionnaires , submit results internal database.

each external user's form gets unique guid. illustration [9c43207a-fd84-499a-82c3-247e7337335f]. security purposes token generated c# code using form guid, on 64 bit web-server.

in order internal user see form, in our winforms application, web browser has been embedded , next url entered web browser address bar... [https://company_domain_name.com/formonline.aspx?token=token_generated_by_64_bit_webserver].

the code below generates token...

//************************************************************** // illustration code //************************************************************** system.guid my_guid = new system.guid("9c43207a-fd84-499a-82c3-247e7337335f"); string txtid = my_guid.tostring(); system.text.stringbuilder str = new system.text.stringbuilder(); str.append(txtid); //************************************************************** // other string values appended stringbuilder // security reasons //************************************************************** string hashresult = txtid.gethashcode().tostring(); str.append(hashresult); string finalresult = encodeto64(str.tostring()); //************************************************************** // method //************************************************************** private string encodeto64(string toencode) { byte[] toencodeasbytes = system.text.asciiencoding.ascii.getbytes(toencode); string returnvalue = system.convert.tobase64string(toencodeasbytes); homecoming returnvalue; }

unfortunately web token generated on internal users 32bit client machine different web server version , web page fails open.

actual examples below.

[guid] [9c43207a-fd84-499a-82c3-247e7337335f]

[64bit token] [qgt7fcakb4etzmq4nc00otlhltgyyzmtmjq3ztczmzczmzvmi1rydwujltmymdyzmzu4mq==]

[32bit token] [qgt7fcakb4etzmq4nc00otlhltgyyzmtmjq3ztczmzczmzvmi0zhbhnlizeynjcynjm0nti=]

downgrading web server 64bit 32bit not option.

altering code on web server not option, proprietary software scheme , lucky developers gave me code utilize create token.

is possible utilize calculation same 64bit result on 32bit client?

c# asp.net .net winforms 32bit-64bit

Comments

Post a Comment

Popular posts from this blog

php - Android app custom user registration and login with cookie using facebook sdk -

php - Android app custom user registration and login with cookie using facebook sdk - i developing android application in users need register , log in using facebook. approximately, flow. open app first time, authenticate facebook, data, send info server create them business relationship in application, start session new business relationship in server, cookie perform later interactions. so far good. what need know wich info have send server, can able identify users when log in seccond time. because need start session in server , send cookie android app farther interactions. i'm using php server side language. i thinking getting getaccesstoken() in android facebook sdk, pass server on business relationship creation , storing in android app. but can't manage how login users on sec time utilize app. any suggestions ? in advance ! to uniquely identify user within app, should create request /me , user's id. guaranteed unique , remain con
Read more

django - Access session in user model .save() -

django - Access session in user model .save() - is possible access current session in user model .save()? pseudo code of want achieve: # users.models.py def save(self, *args, **kwargs): created = true if self.pk: created = false super(abstractuser, self).save(*args, **kwargs) # post-save if created: look_for_invite_in_session_and_register_if_found(self, session) seems wrong in architecture. shouldn't access request in models layer. work request must done in view. can this: user, created = abstractuser.objects.get_or_create(name=name) if created: look_for_invite_in_session_and_register_if_found(user, request.session) django session
Read more

php - .htaccess Multiple Rewrite Rules / Prioritizing -

php - .htaccess Multiple Rewrite Rules / Prioritizing - here current htaccess file: rewriteengine on rewritecond %{http_host} !^www\.website\.com [nc] rewritecond %{http_host} ([^.]+)\.website\.com [nc] rewriterule ^(.*)$ http://www.website.com/gotourl.php?urlid=?%1 [l] rewriterule ^(\w+)$ ./gotourl.php?urlid=$1 [nc,l] rewriterule ^(\w+)/$ ./gotourl.php?urlid=$1 [nc,l] the website in question url shortener i'm working on testing/developing , personal use. above code may not ideal i'm not familiar .htaccess , made via googling , testing. want url shortening aspect: http://website.com/1234 -> http://website.com/gotourl.php?urlid=1234 http://website.com/1234/ -> http://website.com/gotourl.php?urlid=1234 the problem cannot figure out how ignore directories. want specific directories go specific pages: http://website.com/img (or) http://website.com/img/ -> http://website.com/img.php http://website.com/img/1234 (or) http://website.com/
Read more