Services

We design, review, and build cryptographic systems. We especially love post-quantum migrations. If your problem isn't listed, ask anyway.

Cryptographic design review

We look for places where a cryptographic design misses its security goals, before you ship it. You learn what your primitive, protocol, or migration plan guarantees, what it doesn't, and what to change.

Cryptographic implementation audits

We look for places where your cryptographic code violates its specification or weakens its security, and recommend fixes for each finding.

Retainers

A retainer reserves days each month for your team. Ask us questions as they come up, without scoping a new project each time.

Cryptographic implementations in Rust

We write and test cryptographic primitives and protocols in Rust. You choose the license, and we can maintain the code afterward.

Standards work

We edit and review cryptographic standards at the IETF and CFRG. You can sponsor this work, but sponsors don't direct the standard.

How engagements work

We agree on scope, deliverables, schedule, and fee before we start. Projects can have a fixed fee. We book extra work by the day.

Contact

Tell us what you're building, what you need answered, and by when: hello@selkiecryptography.com.