SHA3/Keccak FIPS202 one-liner fixup

[Jeff Marrison]

The change to the padding in the final release of FIPS202 requires this one-liner change to sha3.cpp:

diff sha3.cpp ../cryptopp_563_rc4/sha3.cpp:

277c277

< m_state.BytePtr()[m_counter] ^= 6;

---

> m_state.BytePtr()[m_counter] ^= 1;

Cheers,

--Jeff

[Jeffrey Walton]

Thanks Jeff.

We are trying to determine the impact of a change now. If its minimal, then we can include the change in RC5. RC5 is being worked on as we speak.

The info was added to https://cryptopp.com/wiki/Sha, so it should be available for those who need it.

Jeff