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Cryptography

Guidance for Choosing an Elliptic Curve Signature Algorithm in 2022

A cartoon wild canid on the Internet provides general guidance on elliptic curve cryptography parameter choices.

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Cryptography Software Security

Using RSA Securely in 2022

If you really must support RSA in 2022, here’s some things to keep in mind.

Categories
Cryptography

The Controversy Surrounding Hybrid Cryptography

Who knew Hybrid Cryptography (which combines Post-Quantum Cryptography with Pre-Quantum Cryptography) would be controversial?

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Cryptography Furry Fandom Meta Society

Lightning Round

An assortment of topics that don’t quite deserve their own dedicated blog post.

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Bullshit Cryptography

Crackpot Cryptography and Security Theater

Tales from the Crypt[ography].

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Cryptography Software Security

Please Stop Encrypting with RSA Directly

RSA is for encrypting symmetric keys, not entire messages. Pass it on.

Categories
Cryptography Software Security

Soatok’s Guide to Side-Channel Attacks

If you’re ever tasked with implementing a cryptography feature–whether a high-level protocol or a low-level primitive–you will have to take special care to ensure you’re not leaking secret information through side-channels. The descriptions of algorithms you learn in a classroom or textbook are not sufficient for real-world use. (Yes, that means your toy RSA implementation […]

Categories
Cryptography

A Brief Opinionated Overview of NIST’s Post-Quantum Cryptography Round 3 Candidates

Earlier this week, NIST announced Round 3 of the Post-Quantum Cryptography project and published their rationale for selecting from the Round 2 candidates. NIST did something clever this time, and Round 3 was separated into two groups: Finalists and Alternative Candidates. Finalists are algorithms that NIST (and the majority of the cryptographers involved in NIST’s […]