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Rescooped by David Stapleton from Social Media News

Free eBook: 4 SEM Mistakes and How to Avoid Them 

Free eBook: 4 SEM Mistakes and How to Avoid Them  | wealth business & social media | Scoop.it
Are you seeing the results you want from search engine marketing?

Download this Free Ebook for tips @ https://thrivehive.com/landing-page/sem-mistakes-ebook-fb/

Via Scott McElreath
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Rescooped by David Stapleton from Bitcoin, Blockchain & Cryptocurrency News

Google just cracked one of the building blocks of web encryption (but don’t worry)

Google just cracked one of the building blocks of web encryption (but don’t worry) | wealth business & social media | Scoop.it
Let’s start from th

Via Jan Miranda
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Jan Miranda's curator insight, February 27, 2017 3:54 AM
Google publicly broke one of the major algorithms in web encryption, called SHA-1 (a hashing function). The company’s researchers showed that with enough computing power — roughly 110 years of computing from a single GPU for just one of the phases — you can produce a collision, effectively breaking the algorithm. We’ve known this was possible for a while, but nobody has done it, in part because of the possible fallout.
The good news is, almost no one is still using SHA-1, so you don’t need to rush out and install any patches. But today’s announcement is still a major power play from Google, with real implications for web security overall.

SHA-1 is a hashing function, which produces a digital fingerprint from a given file. That lets you verify a file’s integrity without exposing the entire file, simply by checking the hash.

Banks, Online Stores, Bitcoin, & Cryptocurrency
Banks & online stores use the hash functions to secure transactions.
Cryptocurrencies like Bitcoin and Ethereum continually evolve using the latest hash functions to encrypt blocks of transactions. Bitcoin uses SHA-256 and Ethereum uses Keccak-256.

In practical terms, a broken hash function could be used to break HTTPS, the encryption system that now protects more than half the web. If that system breaks, it would be easy for criminals to insert malware into web traffic from a compromised ISP or other network provider.

Cryptographers have been predicting a collision (that SHA-1 would be broken) like this for years. Since 2005 its vulnerability was theorized. As of January 1st, every major browser will show you a big red warning when you visit a site secured by SHA-1.

Dropping SHA-1 took a lot of time and effort across the industry, and not everyone was eager to do it. The result has been a running fight over how fast make the switch — with Google’s Chrome Security Team providing one of the loudest voices for a faster transition. Chrome was forcing websites away from SHA-1 as early as 2014
Merry James's curator insight, June 30, 2017 2:18 AM