What is eFuse?

eFuse in the explanations

• An eFuse is one-time-programmable storage written bit by bit by blowing a thin wire with a large current.

  Which method is commonly used to store keys written into a …

• Per-device keys are provisioned securely through PUFs, eFuse programming or key injection during manufacturing.

  When manufacturing many devices, why give each device its o…

Questions that mention eFuse (2)

1. Which method is commonly used to store keys written into a chip?
2. When manufacturing many devices, why give each device its own key instead of the same key in all of them?

Related terms

Physically unclonable function (PUF) Anti-rollback protection Cold boot attack Constant-time implementation Counterfeit chip Fault injection attack Hardware Trojan Kernel page-table isolation (KPTI) Measured boot Meltdown