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Three different keying options are allowed by the TDEA. The first option specifies that all the keys
are independent, i.e., KEY1, KEY2, and KEY3 are independent. This is referred to as Keying
Option 1 in FIPS PUB 46-3 – 1999 (and ANSI X9.52 – 1998). It will be referred to as 3-key
TDES in this document. The second option specifies that KEY1 and KEY2 are independent and
KEY3 is equal to KEY1, i.e., KEY1 and KEY2 are independent, KEY3 = KEY1. This is referred
to as Keying Option 2 in FIPS PUB 46-3 – 1999 (and ANSI X9.52 – 1998) and will be referred to
as 2-key TDES in this document. And the third option specifies that KEY1, KEY2 and KEY3 are
equal, i.e., KEY1=KEY2=KEY3. This is referred to as Keying Option 3 in FIPS PUB 46-3 – 1999
(and ANSI X9.52 – 1998 and will be referred to as 1-key TDES in this document. 1-key TDES is
equivalent to single DES.
Keying Options 1 and 2 are the only valid keying options for registration. Keying Option 3 is still used for performing KATs, but is not specified during registration.
The text was updated successfully, but these errors were encountered:
It appears the spec would benefit from a "KeyingOption" (or similar) capability for specifying the type of tests to generate for a TDES registration.
The Keying Options as per http://nvlpubs.nist.gov/nistpubs/Legacy/SP/nistspecialpublication800-20.pdf are described as:
Keying Options 1 and 2 are the only valid keying options for registration. Keying Option 3 is still used for performing KATs, but is not specified during registration.
The text was updated successfully, but these errors were encountered: