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Quantum Computing

Security

Encryption Public Key Post‑Quantum Cryptography Quantum‑Safe Cryptography

Computational paradigm using qubits and quantum effects; relevant to cryptography due to potential algorithmic speedups.

Definition

Quantum computers may provide significant speedups for specific problems. In cryptography, Shor’s algorithm threatens widely used public-key systems, while Grover’s algorithm impacts symmetric key sizes.

In plain English Computational paradigm using qubits and quantum effects; relevant to cryptography due to potential algorithmic speedups.

Why this matters

Why it matters: Planning for cryptographic agility and PQC reduces future exposure, especially for data that must remain confidential for many years.

Example

Example: Adopt longer symmetric keys and prepare protocol upgrades to PQC-capable standards.