Facebook mandates stronger digital verification of apps

Facebook will require application developers to move later this year to a more secure type of digital signature for their apps, which is used to verify a program’s legitimacy.

As of Oct. 1, apps will have to use SHA-2 certificate signatures rather than ones signed with SHA-1. Both are cryptographic algorithms that are used to create a hash of a digital certificate that can be mathematically verified.

Apps that use SHA-1 after October won’t work on Facebook anymore, wrote Adam Gross, a production engineer at the company, in a blog post.

“We recommend that developers check their applications, SDKs, or devices that connect to Facebook to ensure they support the SHA-2 standard,” Gross wrote.

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Story added 3. June 2015, content source with full text you can find at link above.