CipherLab CP55, Reference Manual

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Chapter 2 Data Capture
ISO14443A CHANGE KEY
You may change the Keys A and/or B used to access an RFID tag. To change the value of key
A or key B:
1) Launch the RFID reader as described in Launch HF RFID Configuration .
2) Tap the green arrow next to ISO14443A Change Key .
3) Enter the original value of key A or key B, the new assigned value, and the sector to
implement the change.
4) Place the RFID tag in proximity to the mobile computer’s back cover, where the RFID
reader module is installed.
5) Tap Apply in the upper left corner to implement the change.
Setting Description Default
Sector index Sets the sector to apply the change. 0
Origin key type Select to change either key A or key B. Key A
Origin key value Enter the original value of the key. FFFFFFFFFFFF
New key A Assign the new value of key A, which must be a hex
string of 12 bytes. The value of key A must be filled
whether or not you would like to change its value.
FFFFFFFFFFFF
New key B Assign the new value of key B, which must be a hex
string of 12 bytes. The value of key B must be filled
whether or not you would like to change its value.
FFFFFFFFFFFF