multiple subkeys and key transition

Robert J. Hansen rjh at
Fri Dec 10 03:40:47 CET 2010

On 12/9/2010 8:48 PM, John Clizbe wrote:
> Most details of Suite-B for information above SECRET are classified, IIRC.

Suite A is still classified.  Suite B is pretty thoroughly documented.  :)

From :

"AES with 256-bit keys, Elliptic Curve Public Key Cryptography using the
384-bit prime modulus elliptic curve as specified in FIPS PUB 186-3 and
SHA-384 are required to protect classified information at the TOP SECRET

... TS/SCI, which is usually thought of as "above TS", is really just TS
with some additional conditions and qualifiers on it -- so Suite B is
usable with TS/SCI material.

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