How is it possible to extract private keys securely stored on a cryptographic smartcard?

The correct answer is B. Focused ion-beam. A focused ion beam (FIB) is a sophisticated technique used in hardware security research and attacks. It involves directing a focused beam of ions (typically gallium) onto a chip's surface to physically manipulate or probe the internal structures of the chip. This technique can b

Submitted by jian89· Mar 5, 2026Security Architecture and Engineering

Question

Options

ABluebugging
BFocused ion-beam
CBluejacking
DPower analysis

How the community answered

(31 responses)

A
3% (1)
B
94% (29)
C
3% (1)

Explanation

A focused ion beam (FIB) is a sophisticated technique used in hardware security research and attacks. It involves directing a focused beam of ions (typically gallium) onto a chip's surface to physically manipulate or probe the internal structures of the chip. This technique can be used to extract private keys securely stored on a cryptographic smartcard by accessing the internal memory or bypassing security mechanisms, allowing an attacker to retrieve sensitive data, such as private keys.

Topics

#smartcard security#side-channel attacks#hardware attacks

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