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SHA-512/256

By: Johnson, S.; Gueron, S.; Walker, J.;

2011 / IEEE / 978-1-61284-427-5

Description

This item was taken from the IEEE Conference ' SHA-512/256 ' With the emergence of pervasive 64 bit computing we observe that it is more cost effective to compute a SHA-512 than it is to compute a SHA-256 over a given size of data. We propose a standard way to use SHA-512 and truncate its output to 256 bits. For 64 bit architectures, this would yield a more efficient 256 bit hashing algorithm, than the current SHA-256. We call this method SHA-512/256. We also provide a method for reducing the size of the SHA-512 constants table that an implementation will need to store.