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Google Announces SHA-1 Deprecation Timeline

This is a very interesting discussion of the deprecation of SHA-1 certificates.  What is this and why should you care?  SHA-1 is an encryption hashing algorithm used in the creation of website certificates and other hashed values.  It replaced MD5 several years ago as the preferred and safer alternative.  Over the past several years, SHA-256 and other, stronger hashing algorithms have been developed.  Algorithms like SHA-1 are used by web browser clients to validate signed certificates of HTTPS websites to ensure legitimacy.  Some older browsers and mobile devices do not support SHA-256, so a move away from SHA-1 could limit access for those devices and their related users.

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