62 domain use
With double-length key algorithm as an example
The pin 62 of the working memory domain key ciphertext and MAC work key ciphertext
Format: working key ciphertext pin 16 bytes + 4 bytes corresponding checkvalue, 8-byte MAC work key ciphertext 0 + 8 bits + respective 4-byte padding CheckValue
Pos checkvalue will check to determine whether unpack error.
Master key CE31B0C2D38034706861B0AE86CE91D0
Pin working key ciphertext: 11111111111111111111111111111111
MAC work key ciphertext: 222222222222222
First seek checkvalue first portion, using the master key to pin16 byte ciphertext into plaintext solution,
The solution out plaintext as double length key algorithm key to the 0 byte 8 into ciphertext, take the first four bytes of the ciphertext is checkvalue.
Checkvalue=405E8F0B
And then seek the MAC checkvalue, using the master key to pin8 byte ciphertext into plaintext Solutions
The solution out plaintext as a single key algorithm key length 8 times 0 bytes into ciphertext, to take the first four bytes of the ciphertext is checkvalue.
Checkvalue=25E9A6B1
Field is 62 11 11 11 11 11 11 11 11 11 1111 11 11 11 11 11 E6 2E CC 05 22 22 22 22 22 22 22 22 00 00 00 00 00 00 00 0025 E9 A6 B1
Above encryption and decryption are performed using software, you can watch how to do this in software encryption and decryption.
