In Card Production Guide v.2.04

Question

hem....
Chapter 2.3.2 is Sysmmetric Key Derivation...
There is the derivation algorithm
Key(M) = (K1 | K2)
Encipher is a triple DES operation on a double length key such as
result = encipher(k1)[decipher(k2){enciphser(k1) [8 bytes of "Test"}]
Key(D) = (KA | KB)
KA = Encipher(Key(M)["text" = first 8 bytes of derivation data]
KB = Encipher(Key(M)["text" = second 8 bytes of derivation data]
Key(D) : card unique double length DES derived key
Key(M) : off-card double length DES Master key
My Question is "result"
"Result" is Derivation data that was encrypt by triple DES
so.. "text " is Derivation data that I don't know What algorism was used
"Result" equals "text"?
One more Question, follow the derivation algorithm... finally...
For Make Key(D), use 2times encrypt algorithm? (One used that make
Key(M) and another used(Key(D))
My opinion is right?
please advice...

Answer 1

It would be useful to provide specifics on the issues. This is too vague to be of much use to those of us trying to assist.