What is PQC (Post-quantum cryptography)?

PQC (Post-quantum cryptography) refers to cryptographic methods designed to protect information against attacks from both conventional computers and future quantum computers. Sufficiently capable quantum computers could potentially break some widely used cryptographic algorithms, particularly certain forms of public-key cryptography. PQC therefore uses mathematical problems that are considered difficult for both conventional and quantum computers to solve.

A useful analogy is replacing locks before a new type of master key becomes available. Today’s locks may still work, but if future technology is expected to make them significantly easier to open, new locks need to be developed and introduced before that happens. Similarly, PQC is about preparing digital systems for a future in which today’s cryptographic protection may no longer be sufficient.

Sicra and PQC

PQC is relevant for organizations that depend on encryption to protect sensitive information, communications, identities, and digital services over long periods. Transitioning to quantum-resistant cryptography requires organizations to understand where and how cryptography is currently used, assess the associated risks, and plan how existing systems can be modernized.

Sicra’s security assessment, strategy, and architecture services can help organizations identify dependencies and risks within existing environments and establish a foundation for future security measures. PQC can therefore form part of a long-term approach to security architecture, risk management, and modernization of digital infrastructure.

Services

Security maturity assessment

Security strategy

Sicra security analysis

Network architecture

CISO-for-hire

Related terms: Encryption, Decryption, Hash, Authentication, Cybersecurity, Data security, Digital security, Security management, Zero Trust, NIS2 (Network and Information Systems Directive 2)