C-ZAM/XENTA
P
RODUCT
G
UIDE
Security
SAMOA ASIC
The high security level of the SAMOA ASIC is achieved via:
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Tamper circuits with multiple tamper sources
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32 Kbytes of integrated security memory, erased in case of a tamper attack
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Additional 256-bit security registers are available e.g. for master key storage. The
registers will be erased instantaneously in case of tamper attack
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The ASIC takes care of the terminal’s secured boot process (via key management). No
code can run on the security processor unless it is certified and signed by a
certification authority.
Secure terminal design
The most tangible security feature is the integrated privacy shield that protects against
shoulder surfing while entering a PIN.
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In the terminal design, security
measures are taken at different levels:
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The very architecture of the ASIC and the security-related components
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The design prevents access to the Chip Card Interface in case of fraud intentions
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The signal to erase all security memory is given via several detection mechanisms that
are triggered when someone tries to open the terminal.
Version: 1.0
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