Waraxe IT Security Portal
Login or Register
June 16, 2025
Menu
Home
Logout
Discussions
Forums
Members List
IRC chat
Tools
Base64 coder
MD5 hash
CRC32 checksum
ROT13 coder
SHA-1 hash
URL-decoder
Sql Char Encoder
Affiliates
y3dips ITsec
Md5 Cracker
User Manuals
AlbumNow
Content
Content
Sections
FAQ
Top
Info
Feedback
Recommend Us
Search
Journal
Your Account
User Info
Welcome, Anonymous
Nickname
Password
(Register)

Membership:
Latest: MichaelSnaRe
New Today: 0
New Yesterday: 0
Overall: 9144

People Online:
Visitors: 41
Members: 0
Total: 41
Full disclosure
SEC Consult SA-20250604-0 :: Local Privilege Escalation and Default Credentials in INDAMED - MEDICAL OFFICE (Medical practice management) Demo version
Full Disclosure: CVE-2025-31200 & CVE-2025-31201 – 0-Click iMessage Chain ? Secure Enclave Key Theft, Wormable RCE, Crypto Theft
Defense in depth -- the Microsoft way (part 89): user grouppolicies don't deserve tamper protection
CVE-2025-45542: Time-Based Blind SQL Injection in CloudClassroom PHP Project v1.0
ERPNext v15.53.1 Stored XSS in bio Field Allows Arbitrary Script Execution in Profile Page
ERPNext v15.53.1 Stored XSS in user_image Field Allows Script Execution via Injected Image Path
Local information disclosure in apport and systemd-coredump
Stored XSS via File Upload - adaptcmsv3.0.3
IDOR "Change Password" Functionality - adaptcmsv3.0.3
Stored XSS "Send Message" Functionality - adaptcmsv3.0.3
Authenticated File Upload to RCE - adaptcmsv3.0.3
Stored XSS in "Description" Functionality - cubecartv6.5.9
Multiple Vulnerabilities in SAP GuiXT Scripting
CVE-2024-47081: Netrc credential leak in PSF requests library
Exploit CVE-2019-9978: Remote Code Execution in Social Warfare WordPress Plugin (<= 3.5.2)
Log in Register Forum FAQ Memberlist Search
IT Security and Insecurity Portal

www.waraxe.us Forum Index -> Hash related information -> Making a salted md5 hash into a regular md5?
Post new topicReply to topic View previous topic :: View next topic
Making a salted md5 hash into a regular md5?
PostPosted: Fri Jul 25, 2008 10:24 pm Reply with quote
Urb4n
Advanced user
Advanced user
Joined: Apr 16, 2008
Posts: 55




is that possible in any way? I'm trying to set these hard to crack salted md5's into a cookie in order to login to a forum, thanks.
View user's profile Send private message
PostPosted: Fri Jul 25, 2008 11:10 pm Reply with quote
oniric
Advanced user
Advanced user
Joined: Jul 24, 2008
Posts: 65




Knowing the algorithm and the hash it is theoretically possible to calculate the MD5 only of the password but that would require an impressive cpu power or very very long time.

For example if the algorithm is md5($salt.$password) calculating the "regular" md5 is exactly like cracking the salted one while instead in an algorithm such as the IPB2 one ( md5(md5($salt).md5($password)) ) one, knowing the salt, could calculate md5($salt) easily and the perform a search of the password in the md5 strings space ( 32 chars, 16 digits ): that's a huge key space!

I hope that was clear enough Very Happy
View user's profile Send private message
Re: Making a salted md5 hash into a regular md5?
PostPosted: Fri Jul 25, 2008 11:46 pm Reply with quote
waraxe
Site admin
Site admin
Joined: May 11, 2004
Posts: 2407
Location: Estonia, Tartu




Urb4n wrote:
is that possible in any way? I'm trying to set these hard to crack salted md5's into a cookie in order to login to a forum, thanks.


Short answer: no Smile
View user's profile Send private message Send e-mail Visit poster's website
PostPosted: Fri Jul 25, 2008 11:49 pm Reply with quote
oniric
Advanced user
Advanced user
Joined: Jul 24, 2008
Posts: 65




LOL Very Happy
View user's profile Send private message
Making a salted md5 hash into a regular md5?
www.waraxe.us Forum Index -> Hash related information
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
All times are GMT
Page 1 of 1

Post new topicReply to topic


Powered by phpBB © 2001-2008 phpBB Group



PCWizardHub - Helping you fix, build, and optimize your PC life
All logos and trademarks in this site are property of their respective owner. The comments and posts are property of their posters, all the rest (c) 2004-2024 Janek Vind "waraxe"
Page Generation: 0.025 Seconds