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User Manual, SecureHead USB and UART Interface
Appendix I
Example of IDTECH Raw Data Decryption
Original Raw Data Forward Direction:
01D67C81020408102D4481020408102042890A350854A2FB3EE4BA3D4065B67A9C391F582A42
B99A858A90AF60852B14AA628A0D
028FC210842C18421084030092040B51581F24B56074404811160D
Original Raw Data Backward Direction:
01A28CAA51A9420DEA12A342B33A84A835F13872BCDB4C0578BA4EF9BE8A542158A122840
81020408102456810204081027CD60D
02D11024045C0D5A49F03515A0409201804210843068421087E20D
Note:
1.
There is track number before each track. Track 1 is 01, Track 2 is 02, Track 3 is 03.
2.
There is track separator after each track: 0D
Example of decryption of a two track ABA card with the original encryption format. For both
Fix & DUKPT key management.
SecureHead Reader with default settings
Key for all examples is
0123456789ABCDEFFEDCBA9876543210
Original Encryption Format
original encryption format (this can be recognized because the high bit of the fourth byte underlined
(00) is 0.
028700041B331A0027D2E435CEE303F007E977B598B7E3C57C76F4445E309F6916C0321A0F915
B6E490813498839049FE5204762327C3C758C5BF82542DEEDD8D6AF88019149A702FF2D43BD
4AD60031FA450720B00D7808E15F3D5B29AE712C64A1212E9AF6F483BD40798A9FF2DDE77D
046620B55BCE94A4D5534CF57E7E07629949011A0000000001871D03
STX, Length (LSB, MSB), card type, track status, length track 1, length track 2, length track 3
02 8700 04 1B 33 1A 00
Track 1 & 2 encrypted length 0x33+0x1A rounded up to 8 bytes =0x4D -> 0x50 (80 decimal)
27D2E435CEE303F007E977B598B7E3C57C76F4445E309F6916C0321A0F915B6E4908134988390
49FE5204762327C3C758C5BF82542DEEDD8D6AF88019149A702FF2D43BD4AD60031FA45072
0B00D7808
Track 1 hashed
E15F3D5B29AE712C64A1212E9AF6F483BD40798A
Track 2 hashed
9FF2DDE77D046620B55BCE94A4D5534CF57E7E07