Mimecast ranked among the fastest growing techno... » London, UK: Mimecast has been ranked on the Deloitte Technology Fast 500 EMEA 2014, a ranking of the... gateprotect once again awarded the quality label ‘... » Hamburg: gateprotect GmbH, the German IT security specialist and member of the Rohde & Schwarz Group... The U.S. and Cuba » The White House, Washington Yesterday, after more than 50 years, we began to change America's rela... Why is an integrated network health solution criti... » Networks have become a strategic business asset that glues together the data, the applications, and ... Nuix joins McAfee security Innovation Alliance P... » LONDON, UK: Nuix has joined the McAfee Security Innovation Alliance program. Nuix and McAfee are now... IGEL updates Windows Embedded firmware and expands... » Reading, UK: IGEL Technology has updated its firmware for its Windows Embedded Standard 7 thin clien... ForgeRock reveals 2015 technology predictions » Bristol: ForgeRock Inc. has revealed its 2015 technology predictions. The company expects to see inc... Lancope unveils newly enhanced, world-Class cust... » Company has increased its investment in customer success by 150 percent this year LONDON UK: Lanco... ANNUAL ARMED FORCES COVENANT REPORT PUBLISHED » THE Armed Forces Covenant Annual Report has been presented to Parliament today and details the progr... Opengear Continues EMEA Momentum » Slough UK:  Opengear has announced its most impressive year in EMEA with across the board growth. 2...

CLICK HERE TO

Advertise with Vigilance

Got News?

Got news for Vigilance?

Have you got news/articles for us? We welcome news stories and articles from security experts, intelligence analysts, industry players, security correspondents in the main stream media and our numerous readers across the globe.

READ MORE

Subscribe to Vigilance Weekly

Information Security Header

A new attack makes some password cracking faster, easier than ever. A researcher has devised a method that reduces the time and resources required to crack passwords that are protected by the SHA1 cryptographic algorithm.

Tal Be'ery, Web Researcher at Imperva has looked into the SHA1 methodology and why companies should stay clear of using this method to protect passwords:

 

"First, some context. One of the main use cases for hashing function, such as the SHA-1 function, is to store passwords securely. When attackers obtain such hashed password, they need to launch a “brute force” attack against it, in order to reveal the password. “Brute force” means, they need to repeatedly guess the password, apply the hashing function on it and compare the result with their hash password they have. The security researcher has found an algorithmic shortcut in SHA-1 calculation that makes the computation easier, thus reducing the time needed to successfully “brute force” an attack.

The corollary? In case the hashing is done for security (e.g. hash user passwords, verify data integrity, etc.):

MD5 is dead and should never be used.

SHA-1 is going in the same direction. Consider an upgrade of existing systems and definitely don't use it for new systems.

A smart choice would be to follow the U.S. National Institute of Standards and Technology (NIST) recommendation for federal agencies: "Federal agencies should stop using SHA-1 for generating digital signatures, generating time stamps and for other applications that require collision resistance."

Best option? Use a hash function from SHA-2 family, such as the SHA256."