Magtek eDynamo Programmer's Manual page 197

Appendix B - Examples
E98ED0F0D1EA1064, XOR D9BEE0CFD1EA1064 gets 3030303F00000000, which is the
decrypted last block.
Continuing in reverse block order, D9BEE0CFD1EA1064 TDES Decrypt with 27F66D5244FF621E
AA6F6120EDEB427F gets E12DA84C41B85772, XOR D11D9F7E74886742 gets
3030373235303030, which is decrypted block 7.
Continuing in reverse block order, D11D9F7E74886742 TDES Decrypt with 27F66D5244FF621E
AA6F6120EDEB427F gets 0704673B0041CC2F, XOR 3436560B3071FC1F gets
3332313030303030, which is decrypted block 6.
Continuing in reverse block order, 3436560B3071FC1F TDES Decrypt with 27F66D5244FF621E
AA6F6120EDEB427F gets 718DF68EC04A96FF, XOR 51ADD6D0F072A6CB gets
2020205E30383034, which is decrypted block 5.
Continuing in reverse block order, 51ADD6D0F072A6CB TDES Decrypt with 27F66D5244FF621E
AA6F6120EDEB427F gets 0989597B8D3373E0, XOR 26D9182EC11353C0 gets
2F5041554C202020, which is decrypted block 4.
Continuing in reverse block order, 26D9182EC11353C0 TDES Decrypt with 27F66D5244FF621E
AA6F6120EDEB427F gets BF110311E7D5453A, XOR 87285D59A8920474 gets
38395E484F47414E, which is decrypted block 3.
Continuing in reverse block order, 87285D59A8920474 TDES Decrypt with 27F66D5244FF621E
AA6F6120EDEB427F gets F2692820A5E12B9B, XOR C25C1D1197D31CAA gets
3035353132323731, which is decrypted block 2.
Continuing in reverse block order, C25C1D1197D31CAA TDES Decrypt with 27F66D5244FF621E
AA6F6120EDEB427F gets 2542353435323330, which is decrypted block 1.
Ordering the decrypted blocks first to last yields the following. The ASCII translation on the right shows
the host ignoring the final four bytes from the HEX block because the Track 1 Absolute Data Length
(HID | GATT | SLIP) value in the data indicates Track 1 only contains 60 characters:
HEX
2542353435323330
3035353132323731
38395E484F47414E
2F5041554C202020
2020205E30383034
3332313030303030
3030373235303030
3030303F00000000
The resulting ASCII string for track 1 is:
%B5452300551227189^HOGAN/PAUL
eDynamo| Secure Card Reader Authenticator | Programmer's Manual (COMMANDS)
ASCII
%B545230
05512271
89^HOGAN
/PAUL
^0804
32100000
00725000
000?
Page 197 of 245 (D998200115-17)
^08043210000000725000000?