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The Hacker News - Cybersecurity News and Analysis: hashing

UNIX Co-Founder Ken Thompson's BSD Password Has Finally Been Cracked

UNIX Co-Founder Ken Thompson's BSD Password Has Finally Been Cracked

October 11, 2019Mohit Kumar
A 39-year-old password of Ken Thompson , the co-creator of the UNIX operating system among, has finally been cracked that belongs to a BSD-based system, one of the original versions of UNIX, which was back then used by various computer science pioneers. In 2014, developer Leah Neukirchen spotted an interesting " /etc/passwd " file in a publicly available source tree of historian BSD version 3, which includes hashed passwords belonging to more than two dozens Unix luminaries who worked on UNIX development, including Dennis Ritchie, Stephen R. Bourne, Ken Thompson, Eric Schmidt, Stuart Feldman, and Brian W. Kernighan. Since all passwords in that list are protected using now-depreciated DES-based crypt(3) algorithm and limited to at most 8 characters, Neukirchen decided to brute-force them for fun and successfully cracked passwords (listed below) for almost everyone using password cracking tools like John the Ripper and hashcat. The ones that she wasn't able to crack
Imgur—Popular Image Sharing Site Was Hacked In 2014; Passwords Compromised

Imgur—Popular Image Sharing Site Was Hacked In 2014; Passwords Compromised

November 25, 2017Swati Khandelwal
Only after a few days of Uber admitting last year's data breach of 57 million customers , the popular image sharing site disclosed that it had suffered a major data breach in 2014 that compromised email addresses and passwords of 1.7 million user accounts. In a blog post published on Friday, Imgur claimed that the company had been notified of a three-year-old data breach on November 23 when a security researcher emailed the company after being sent the stolen data. Imgur Chief Operating Officer (COO) then alerted the company's founder and the Vice President of Engineering to the issue before began working to validate that the data belonged to Imgur users. After completing the data validation, the company confirmed Friday morning that the 2014 data breach impacted approximately 1.7 million Imgur user accounts (a small fraction of its 150 million user base) and that the compromised information included only email addresses and passwords. Since Imgur has never asked fo
Google Achieves First-Ever Successful SHA-1 Collision Attack

Google Achieves First-Ever Successful SHA-1 Collision Attack

February 23, 2017Swati Khandelwal
SHA-1, Secure Hash Algorithm 1, a very popular cryptographic hashing function designed in 1995 by the NSA, is officially dead after a team of researchers from Google and the CWI Institute in Amsterdam announced today submitted the first ever successful SHA-1 collision attack. SHA-1 was designed in 1995 by the National Security Agency (NSA) as a part of the Digital Signature Algorithm. Like other hashes, SHA-1 also converts any input message to a long string of numbers and letters that serve as a cryptographic fingerprint for that particular message. Collision attacks appear when the same hash value (fingerprint) is produced for two different messages, which then can be exploited to forge digital signatures, allowing attackers to break communications encoded with SHA-1. The explanation is technologically tricky, but you can think of it as attackers who surgically alters their fingerprints in order to match yours, and then uses that to unlock your smartphone. The researchers h
Collision Attack: Widely Used SHA-1 Hash Algorithm Needs to Die Immediately

Collision Attack: Widely Used SHA-1 Hash Algorithm Needs to Die Immediately

October 08, 2015Swati Khandelwal
SHA-1 – one of the Internet's widely adopted cryptographic hash function – is Just about to Die. Yes, the cost and time required to break the SHA1 algorithm have fallen much faster than previously expected. According to a team of researchers, SHA-1 is so weak that it may be broken and compromised by hackers in the next three months. The SHA-1 algorithm was designed in 1995 by the National Security Agency (NSA) as a part of the Digital Signature Algorithm. Like other hash functions, SHA-1 converts any input message to a long string of numbers and letters that serve as a cryptographic fingerprint for that message. Like fingerprints, the resulting hashes are useful as long as they are unique. If two different message inputs generate the same hash (also known as a collision ), it can open doors for real-world hackers to break into the security of banking transactions, software downloads, or any website communication. Collision Attacks on SHA-1 Researchers
11 Million Ashley Madison Passwords Cracked In Just 10 Days

11 Million Ashley Madison Passwords Cracked In Just 10 Days

September 10, 2015Mohit Kumar
Last month, when hackers leaked nearly 100 gigabytes of sensitive data belonging to the popular online casual sex and marriage affair website ' Ashley Madison ', there was at least one thing in favor of 37 Million cheaters that their Passwords were encrypted . But, the never ending saga of Ashley Madison hack could now definitely hit the cheaters hard, because a group of crazy Password Cracking Group, which calls itself CynoSure Prime , has cracked more than 11 Million user passwords just in the past 10 days, not years. Yes, the hashed passwords that were previously thought to be cryptographically protected using Bcrypt, have now been cracked successfully. Bcrypt is a cryptographic algorithm that makes the hashing process so slow that it would literally take centuries to brute-force all of the Ashley Madison account passwords. How do they Crack Passwords? The Password cracking team identified a weakness after reviewing the leaked data, which included u
Securing Passwords with Bcrypt Hashing Function

Securing Passwords with Bcrypt Hashing Function

April 10, 2014Anonymous
Passwords are the first line of defense against cyber criminals. It is the most vital secret of every activity we do over the internet and also a final check to get into any of your user account, whether it is your bank account, email account, shopping cart account or any other account you have. We all know storing passwords in clear text in your database is ridiculous. Many desktop applications and almost every web service including, blogs, forums eventually need to store a collection of user data and the passwords, that has to be stored using a hashing algorithm. Cryptographic hash algorithms MD5, SHA1, SHA256, SHA512, SHA-3 are general purpose hash functions, designed to calculate a digest of huge amounts of data in as short a time as possible. Hashing is the greatest way for protecting passwords and considered to be pretty safe for ensuring the integrity of data or password. The benefit of hashing is that if someone steals the database with hashed passwords, they o
98% of SSL enabled websites still using SHA-1 based weak Digital Certificates

98% of SSL enabled websites still using SHA-1 based weak Digital Certificates

February 06, 2014Anonymous
The National Institute of Standards and Technology (NIST) had published a document on Jan 2011 that the SHA-1 algorithm will be risky and should be disallowed after year 2013, but it was recently noticed by Netcraft experts that NIST.gov website itself were using 2014 dated SSL certificate with SHA-1 hashes. " From January 1, 2011 through December 31, 2013, the use of SHA-1 is deprecated for digital signature generation. The user must accept risk when SHA-1 is used, particularly when approaching the December 31, 2013 upper limit. SHA-1 shall not be used for digital signature generation after December 31, 2013. " NIST in the document. Digital signatures facilitate the safe exchange of electronic documents by providing a way to test both the authenticity and the integrity of information exchanged digitally. Authenticity means when you sign data with a digital signature, someone else can verify the signature, and can confirm that the data originated from you and was not
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