Storing Passwords - done right! Written by: Christoph Wille Translated by: Bernhard Spuida First published: 1/5/2004 Viewed 257725 times. 1766 ratings, avg. grade 4.76 In very many - not to say almost all - Web applications user data is administered, from Web forum to Web shop. These user data encompass login information of the users which contain the password besides the user name - and this in plain text. A security leak par excellence. Why is storing the user name and password in plain text a security leak? Well, imagine a cracker gaining system access through eventual OS or server software errors, and being able to read the user database. As he now knows the user name and password of any arbitrary user he can now log on as a 'real' user and do whatever he wants with the permissions for that user - from ordering in the Web shop to character assassination on the forum. How can this security risk be eliminated?
What is a Salted Hash? Storing the Salted Hash Generating Passwords - done right! We create a Salt Conclusion. InfoSec Handlers Diary Blog - Hashing Passwords. After talking about SQL Injection, this is the second part of the mini series to help you protect yourself from simple persistent attacks as we have seen them in the last couple months. A common MO employed in these attacks is to steal passwords from a database via sql injection. Later, the attacker will try to use these passwords to break into other sites for which users may choose the same password.
Of course, part of the problem is password reuse. But for now, we will focus on the hashing of passwords to make it harder for an attacker to retrieve a users plain text password. First of all: What is hashing? Storing a password as a hash will make it difficult to figure out the actual password a user used. A hash isn't fool proof.
Probably the most important defense against rainbow tables is the idea of introducing a "salt". In order to use a "salt", the salt value and the users password are first concatenated, then the string is hashed. - concatenate the two hashes, and hash them again. Cryptography - Windows 7 Password Hash Security. 6 Steps to Create an Effective BYOD Plan (Infographic) With workplaces more mobile and interconnected than ever, many employees have the ability to work from home or on the go. While at first glance, having a bring your own device (BYOD) policy in your office can help with flexibility and cutting costs, it could also lead to security issues and major IT headaches if businesses aren't too careful.
So what can managers and IT departments do to ensure the safety of company data and productivity of their employees? Well, actually a lot. Related: A Lack of Communication on Cyber Security Will Cost Your Business Big Computing and security company Bitglass recommends investing in strategy that lets employees choose whatever device they like, keeping in mind that while software and hardware are replaceable, company data is not. For more on connectivity, growth and keeping private and company data separate, check out Bitglass' six-step infographic on creating a BYOD plan that is helpful to everyone. Click to Enlarge+ Love infographics » Submit, promote and share infographics. » Find out how to secure your WIFI Network. 41Find out how to secure your WIFI Network Infographic PreviousNext Internet Infographics Leave a reply You must be logged in to post a comment. Related posts Read more → Computer Virus Google Global market Share Infographic The Most Popular CMS for Your Business Needs The infographic provides a summary of the fundamentals of content management systems, the industries in which they are used and the various types of CMSs available.
History Of Apple Timeline Infographic inShare Back to top ↑ Expand Close. How to keep your business safe – the one checklist all SMBs should have - McAfee. Last week our nation celebrated the contributions and achievements of small businesses with the 50th anniversary of National Small Business Week. President Obama paid tribute to the spirit of small business owners in his kickoff speech, highlighting the critical role that SMBs play in the U.S. economy. There are over 28 million small businesses in the U.S. today, making up nearly 45% of total U.S. private payroll. Combine these statistics with the vulnerabilities of small businesses with regards to cybercrime: limited IT support / expertise, limited awareness of cybercrime techniques and limited budgets – make small businesses prime targets for cyber criminals. In 2012 alone, nearly 40 percent of SMBs were victims of a security breach.
It is alarming that nearly 60 percent of SMBs will be forced to close their doors within six months of an attack- and even more shocking that only 17 percent of SMBs take any steps to secure company data on personal devices. How To Add a Second Layer of Encryption to Dropbox [Updated] I started using BoxCryptor, which is mentioned in this thread. Free for up to 2Gb. Basically, it mounts an encrypted drive on your computer, and whatever you drop there gets encrypted and sent to another folder, which can be your Dropbox folder. If you're going to get your encrypted material somewhere else, you'll need BoxCryptor installed there as well. BoxCryptor can only be ran by system administrators. But it's been requested on their site to make it accessible by non-admins as well. Another thing you can do is to encrypt files individually before dropping them on Dropbox. You can zip with 7Z via command line.
I won't show how now, because I don't have the time... but I'm going to do it for myself sometime, then I can post it. [www.boxcryptor.com] How To Build A Strong & Perfect Password | Infographic - UltraLinx. With the recent security breach at LinkedIN, with millions of passwords being leaked online, it seems fitting to find out what makes a super secure password. The infographic below shows some great tips on creating a strong and perfect password. 1.
The longer the password, the better. This is a universal rule which most will probably know. 2. Use uppercase letters, lowercase letters, numbers and special characters randomly throughout your password. 3. A good trick to making a long password you can remember is by using a sentence which you will find easy to remember. Advertisement — Continue reading below. Vpn News, Videos, Reviews and Gossip - Lifehacker. A Beginner's Guide to Encryption: What It Is and How to Set it Up. How To Set Up a VPN (and Why You Should) How to Encrypt and Hide Your Entire Operating System from Prying Eyes. Public-key cryptography. An unpredictable (typically large and random) number is used to begin generation of an acceptable pair of keys suitable for use by an asymmetric key algorithm. In an asymmetric key encryption scheme, anyone can encrypt messages using the public key, but only the holder of the paired private key can decrypt. Security depends on the secrecy of the private key.
In the Diffie–Hellman key exchange scheme, each party generates a public/private key pair and distributes the public key. After obtaining an authentic copy of each other's public keys, Alice and Bob can compute a shared secret offline. The shared secret can be used, for instance, as the key for a symmetric cipher. Public-key cryptography, also known as asymmetric cryptography, is a class of cryptographic algorithms which requires two separate keys, one of which is secret (or private) and one of which is public. Message authentication involves processing a message with a private key to produce a digital signature. Understanding