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Secure Hash Algorithm is a family of cryptographic hash functions published by NIST. This includes SHA-1, and the SHA-2 and SHA-3 families of functions. SHA-1 is deprecated for all usages.

28 votes
4 answers
7k views

How secure is this hash-based personal password scheme? [duplicate]

I use a password scheme where I keep a small number of easy to remember personal passwords. Instead of using the passwords directly for each service, I run them through a hashing algorithm first, as a …