SHA-3, also known as Keccak, is a cryptographic hash function standardized by NIST as a new alternative to the SHA-2 hash function family.

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Does Keccak have an eTCR mode?

On page 7 of NIST's views on SHA-3's security requirements and Evaluation of attacks, I see that, at least at this point, NIST planned on offering SHA-3 having eTCR security (defined on page 3): ...
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SHA3 Keccak, absorbing data to the state

I'm working on implementation of keccak algorithm and have one problem. Tell me please, takeing an example "test": will state (before block permutations, but after padding - pad10*1) look like this: ...
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Problem implementing MixBytes functionality in Groestl

Disclaimer: School work. I am trying to implement Groestl through Java, and have got stuck on the MixBytes section which can be found here section 3.4.5 page 11. As per the description of matrix ...
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Can anyone tell whether combinational has higher frequency of operation than sequential or vice-versa?

I have designed SHA3 algorithm in 2 ways - combinational and sequential. The sequential design is giving frequency of operation as 700MHz while the combinational one is giving 0.5MHz so i want to ask ...
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Why is it so hard to make a good KDF?

Why are we stuck with only 2-3 KDF functions since KDFs don't imply mathematically conceiving a cryptographic primitive like the inner workings of AES or SHA but instead build a system out of existing ...
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Can anyone tell whether this RHO step of SHA3 is correct?

In rho step of SHA3, I have done right circular rotation whether its correct ?? I am doing in Verilog so I am using concatenation operator for rotation. For x=0 and y=1 that is A[0][1] rotation will ...