Magtek MagneSafe V5 Reference Manual page 121

As Track 1 Encrypted Data Length cites 64 bytes only, we can eliminate
the trailing blocks:
Block # 1 C25C1D1197D31CAA
2 87285D59A8920474
3 26D9182EC11353C0
4 51ADD6D0F072A6CB
5 3436560B3071FC1F
6 D11D9F7E74886742
7 D9BEE0CFD1EA1064
8 C213BB55278B2F12
Appendix C tells us to decrypt the last block:
C213BB55278B2F12 TDES Dec with 27F66D5244FF621E AA6F6120EDEB427F
gets E98ED0F0D1EA1064
XOR D9BEE0CFD1EA1064
gets 3030303F00000000
Continue on in reverse block order:
D9BEE0CFD1EA1064 TDES Dec with 27F66D5244FF621E AA6F6120EDEB427F
gets E12DA84C41B85772
XOR D11D9F7E74886742
gets 3030373235303030
Continue on in reverse block order:
D11D9F7E74886742 TDES Dec with 27F66D5244FF621E AA6F6120EDEB427F
gets 0704673B0041CC2F
XOR 3436560B3071FC1F
gets 3332313030303030
Continue on in reverse block order:
3436560B3071FC1F TDES Dec with 27F66D5244FF621E AA6F6120EDEB427F
gets 718DF68EC04A96FF
XOR 51ADD6D0F072A6CB
gets 2020205E30383034
Continue on in reverse block order:
51ADD6D0F072A6CB TDES Dec with 27F66D5244FF621E AA6F6120EDEB427F
gets 0989597B8D3373E0
XOR 26D9182EC11353C0
gets 2F5041554C202020
Continue on in reverse block order:
26D9182EC11353C0 TDES Dec with 27F66D5244FF621E AA6F6120EDEB427F
gets BF110311E7D5453A
XOR 87285D59A8920474
gets 38395E484F47414E
Continue on in reverse block order:
87285D59A8920474 TDES Dec with 27F66D5244FF621E AA6F6120EDEB427F
gets F2692820A5E12B9B
XOR C25C1D1197D31CAA
gets 3035353132323731
Continue on in reverse block order:
C25C1D1197D31CAA TDES Dec with 27F66D5244FF621E AA6F6120EDEB427F
gets 2542353435323330
(decrypted last block)
(decrypted block 7)
(decrypted block 6)
(decrypted block 5)
(decrypted block 4)
(decrypted block 3)
(decrypted block 2)
(decrypted block 1)
Appendix D. Command Examples
113