Magtek MagneSafe V5 Reference Manual page 123

Continue on in reverse block order:
F0FEAE7908801093 TDES Dec with 27F66D5244FF621E AA6F6120EDEB427F
gets 47796C85E4CE30FF
XOR 724C5DB7D6F901C7
gets 3535313232373138
Continue on in reverse block order:
724C5DB7D6F901C7 TDES Dec with 27F66D5244FF621E AA6F6120EDEB427F
gets 3B35343532333030
Ordering the decrypted blocks 1st to last we get:
HEX
3B35343532333030
3535313232373138
393D303830343332
3130303030303030
373235303F000000
We can ignore the last three bytes because the Track 2 Absolute Length
field cites only 37 characters.
ASCII string ";5452300551227189=080432100000007250?"
This is an accurate decryption of the track.
Track 3 encrypted data
76 BB 01 3C 0D FD 81 95
F1 6F 2F BC 50 A3 51 71
AA 37 01 31 F8 74 42 31
3E E3 64 57 B8 7C 87 F9
00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
We hope the preceding examples have given you enough information to decrypt this
track, the final results should be the ASCII string
MagnePrint data
47 03 57 6B C5 C2 CB 20
BC 04 C6 8B 5C E1 97 2A
E8 9E 08 7B 1C 4D 47 D5
D0 E3 17 06 10 69 03 E6
0B 82 03 07 92 69 0A 57
1D B0 2D 0A 88 85 5A 35
AB B5 54 97 98 00 6B 42
00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
(decrypted block 2)
(decrypted block 1)
ASCII
;5452300
55122718
9=080432
10000000
7250?
";5163499080020445=000000000000?"
Appendix D. Command Examples
115