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Goodbye SHA-1: NIST Retires 27-Year-Old Widely Used Cryptographic Algorithm

Goodbye SHA-1: NIST Retires 27-Year-Old Widely Used Cryptographic Algorithm
Dec 16, 2022 Encryption / Data Security
The U.S. National Institute of Standards and Technology (NIST), an agency within the Department of Commerce,  announced  Thursday that it's formally retiring the SHA-1 cryptographic algorithm. SHA-1 , short for Secure Hash Algorithm 1, is a 27-year-old  hash function  used in cryptography and has since been  deemed   broken  owing to the risk of  collision attacks . While hashes are designed to be irreversible – meaning it should be impossible to reconstruct the original message from the fixed-length enciphered text – the lack of collision resistance in SHA-1 made it possible to generate the same hash value for two different inputs. In February 2017, a group of researchers from CWI Amsterdam and Google  disclosed  the first practical technique for producing collisions on SHA-1, effectively undermining the security of the algorithm. "For example, by crafting the two colliding PDF files as two rental agreements with different rent, it is possible to trick someone to create

Google Achieves First-Ever Successful SHA-1 Collision Attack

Google Achieves First-Ever Successful SHA-1 Collision Attack
Feb 23, 2017
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

Securing Passwords with Bcrypt Hashing Function

Securing Passwords with Bcrypt Hashing Function
Apr 10, 2014
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

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Defending Your Commits From Known CVEs With GitGuardian SCA And Git Hooks

Defending Your Commits From Known CVEs With GitGuardian SCA And Git Hooks
May 20, 2024Software Security / Vulnerability
All developers want to create secure and dependable software. They should feel proud to release their code with the full confidence they did not introduce any weaknesses or anti-patterns into their applications. Unfortunately, developers are not writing their own code for the most part these days. 96% of all software contains some open-source components, and open-source components make up between  70% and 90% of any given piece of modern software . Unfortunately for our security-minded developers, most modern vulnerabilities come from those software components.  As new vulnerabilities emerge and are publicly reported as  Common Vulnerabilities and Exposures  (CVEs), security teams have little choice but to ask the developer to refactor the code to include different versions of the dependencies. Nobody is happy in this situation, as it blocks new features and can be maddening to roll back component versions and hope that nothing breaks. Developers need a way to  quickly  determine if

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
Feb 06, 2014
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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