Additional Description; T1, T2 Or T3 Data Length - ID Tech SecureMag User Manual

Encrypted magstrip reader
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Field 9: Encrypted data sent status
Bit 0:
1— track 1 encrypted data present
Bit 1:
1— track 2 encrypted data present
Bit 2:
1— track 3 encrypted data present
Bit 3:
1— track 1 hash data present
Bit 4:
1— track 2 hash data present
Bit 5:
1— track 3 hash data present
Bit 6:
1—session ID present
Bit 7:
1—KSN present

10.6. Additional Description

Except for USBKB and PS2 interfaces, track formatting (preamble, prefix, and separators) is not
supported in a reader set to send encrypted track data.
The track data is always sent in the same format. There is no special formatting so the program doing
the decoding knows where data field is located.
For USBKB and PS2 interfaces, Preamble and Postamble will be available in the encrypted track data

10.6.1. T1, T2 or T3 Data Length:

Each byte value indicates how many bytes of decoded card data are in the track data field. The value
will be zero if there was no data on the track or if there was an error decoding the track.
The hashed data may be omitted while track 3 may be hashed and included.
Track 1 and Track 2 unencrypted Length
This one-byte value is the length of the original Track data. It indicates the number of bytes in the
Track masked data field. It should be used to separate Track 1 and Track 2 data after decrypting Track
encrypted data field.
Track 3 unencrypted Length
This one-byte value indicates the number of bytes in Track 3 masked data field.
Track 1 and Track 2 masked
Track data masked with the MaskCharID (default is '*'). The first PrePANID (up to 6 for BIN, default is
4) and last PostPANID (up to 4, default is 4) characters can be in the clear (unencrypted). The
expiration date is masked by default but can be optionally displayed.
Track 1 and Track 2 encrypted
This field is the encrypted Track data, using either TDES-CBC or AES-CBC with initial vector of 0. If the
original data is not a multiple of 8 bytes for TDES or a multiple of 16 bytes for AES, the reader right
pads the data with 0.
SecureMag Encrypted MagStrip Reader User Manual
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