An anonymous reader writes “In the process of standardizing the SHA-3 competition winning algorithm Keccak, the National Institute of Standards and Technology (NIST) may have lowered the bar for attacks, which might be useful for or even initiated by NSA. ‘NIST is proposing a huge reduction in the internal strength of Keccak below what went into final SHA-3 comp,’ writes cryptographer Marsh Ray on Twitter. In August, John Kelsey, working at NIST, described (slides 44-48) the changes to the algorithm, including reduction of the bit length from 224, 256, 384 and 512-bit modes down to 128 and 256-bit modes.”… An anonymous reader writes “In the process of standardizing the SHA-3 competition winning algorithm Keccak, the National Institute of Standards and Technology (NIST) may have lowered the bar for attacks, which might be useful for or even initiated by NSA. ‘NIST is proposing a huge reduction in the internal strength of Keccak below what went into final SHA-3 comp,’ writes cryptographer Marsh Ray on Twitter. In August, John Kelsey, working at NIST, described (slides 44-48) the changes to the algorithm, including reduction of the bit length from 224, 256, 384 and 512-bit modes down to 128 and 256-bit modes.”

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