ISARA Insights Blog
Quantum Readiness in 2026: Assessment Checklist and Action Plan for post-quantum era
The honest starting point is current-state cryptography. Roughly thirty percent of an average enterprise network runs on protocols that were broken years ago, and the existing security stack does not surface any of it. That is the cryptographic exposure organizations have today, regardless of when a…
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Lattice-Based Cryptography
Lattice-based cryptography is the most important area of quantum-safe cryptography and is known for its efficiency and versatility. Its use cases range from the foundational building blocks of cryptography to highly complex protocols.
Math Paths to Quantum-safe Security: Hash-based Cryptography
Digital signature algorithms are a critical component of public-key infrastructure, with applications ranging from code signing to establishing secure connections. However, classical digital signature algorithms will be vulnerable to quantum-enabled attacks. Hash-based cryptography is among the oldest…
Math Paths to Quantum-Safe Security: Isogeny-Based Cryptography
One of the most widely deployed public-key cryptographic algorithms is the elliptic curve Diffie-Hellman key exchange (ECDH). This, as well as most currently used protocols, is vulnerable to attacks using quantum computers. Isogeny-based cryptography offers the closest quantum-safe cryptographic primitives…
A Short History of Public Key Cryptography
While the ideal of public-key cryptography is to have a “set and forget” group of algorithms that will guarantee security forever, increasingly we are realizing this ideal is not viable. There is not one cryptographic algorithm with a fixed set of parameters that will last indefinitely. As computers…