yescrypt is a password-based key derivation function (KDF) and password hashing scheme. It builds upon Colin Percival's scrypt and includes classic scrypt, a minor extension of scrypt known as YESCRYPT_WORM (named that for "write once, read [potentially] many [times]", which is how scrypt works), and the full native yescrypt also known as YESCRYPT_RW (for "read-write"). . Like it or not, password authentication remains relevant (including as one of several authentication factors), password hash database leaks happen, the leaks are not always detected and fully dealt with right away, and even once they are many users' same or similar passwords reused elsewhere remain exposed. To mitigate these risks (as well as those present in other scenarios where password-based key derivation or password hashing is relevant), computationally expensive (bcrypt, PBKDF2, etc.) and more recently also memory-hard (scrypt, Argon2, etc.) password hashing schemes have been introduced.. Password security continues to be crucial, as yescrypt's key derivation function and hashing approach help reduce vulnerabilities from password breaches.. Yescrypt, Password-Based, Key Derivation, Hashing Solutions. . LinuxSecurity.com Team
THE AUTHOR of md5crypt(), which is used to encrypt passwords on some FreeBSD and Linux-based operating systems, has said it is no longer secure despite being recommended as a password hashing function.. Poul-Henning Kamp implemented Ronald Rivest's MD5 one-way hashing algorithm in his md5crypt() function that has been in use on FreeBSD and Linux-based operating systems for many years. Now Kamp has been forced to say that md5crypt() is no longer secure after he claimed that people were still recommending it for production use. The link for this article located at The Inquirer is no longer available. . Poul-Henning Kamp implemented Ronald Rivest's MD5 one-way hashing algorithm in his md5crypt() functi. author, md5crypt(), which, encrypt, passwords, freebsd, linux-based, operati. . LinuxSecurity.com Team
Just over fourteen months since its first release as an Apache top-level project, the Apache Shiro developers have released version 1.2.0, the first major update to the Shiro application security framework. . Shiro is designed to enable Java developers to create enterprise applications with features such as authentication, authorisation, enterprise management and cryptography services, without having to use JAAS or EJB security models. One design goal of Shiro was to make the software understandable after a ten minute tutorial. The 1.2.0 release includes new features such as the ability to selectively disable sessions and a LogoutFilter for applications which need to redirect users after logging them out. A command line program to securely hash passwords and new secure password hash formats are designed to be easier to work with, while working in a similar fashion to Apache HTTPD's passwd program. A new PasswordService module makes secure password hash storage simpler and can be used directly in applications along with a PasswordMatcher module to perform comparisons. The link for this article located at H Security is no longer available. . Explore the upgrades in Apache Shiro 1.2.0 that empower Java developers with improved measures for securing passwords and streamlining application oversight.. Apache Shiro, Password Security, Java Application Security. . LinuxSecurity.com Team
In this article I'm going to cover password hashing, a subject which is often poorly understood by newer developers. Recently I've been asked to look at several web applications which all had the same security issue - user profiles stored in a database with plain text passwords . Password hashing is a way of encrypting a password before it's stored so that if your database gets into the wrong hands, the damage is limited. Hashing is nothing new - it's been in use in Unix system password files since long before my time, and quite probably in other systems long before that. In this article I'll explain what a hash is, why you want to use them instead of storing real passwords in your applications, and give you some examples of how to implement password hashing in PHP and MySQL. The link for this article located at PHP Security Consortium is no longer available. . Password hashing is a way of encrypting a password before it's stored so that if your database gets . article, going, cover, password, hashing, subject, which, often, poorly, understood. . LinuxSecurity.com Team
Get the latest Linux and open source security news straight to your inbox.