Questions tagged [sha-224]

SHA-224 is part of the SHA-2 family of hash functions with a 224-bit output .

SHA-224 is one of the algorithms in the SHA-2 sha-2 family of cryptographic hash functions defined by NIST. It is defined in terms of operations on 32-bit words.

External links

FIPS 180-4, the NIST Secure Hash Standard

2 questions

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1 answer

Why does SHA2-224 use different IV's than SHA2-256?

Given that it's otherwise just a truncation, I can guess that being able to compute the 224 value from the 256 value is an unwanted property, but that's just speculation.

hash sha-256 initialization-vector sha-2 sha-224

asked Aug 09 '20 at 19:44

hanshenrik

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1 answer

Origin of the SHA-224 initial hash value?

At the start of each of the SHA-0 through -2 algorithms, the initial state is set to certain constants. I'm curious where the initialization values in SHA-224 are from. MD5's initial values are simple increasing and decreasing patterns of hex…

sha-2 constants sha-224

asked Dec 17 '16 at 05:21

Myria

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