# LLCipher

Free one-week summer cryptography workshop from MIT Lincoln Laboratory at Beaver Works in Cambridge, MA, introducing high schoolers to the abstract algebra and number theory behind modern encryption.

## Key facts

| Field | Value |
| --- | --- |
| Organization | MIT Lincoln Laboratory |
| Category | stem |
| Cost | Free |
| Deadline | Rolling / check official site |
| Eligibility | Grades 9–12 |
| Format | In person |
| Location | Cambridge, MA |
| Program dates | 2026-08-03 to 2026-08-07 |
| Apply | https://www.ll.mit.edu/outreach/llcipher |

## About this program

# LLCipher

LLCipher is MIT Lincoln Laboratory's free, one-week summer enrichment workshop in theoretical cryptography, held at MIT Beaver Works. The program gives high school students a rigorous, proof-oriented introduction to the mathematics that secures modern communication — no cost to participate.

## What You'll Do

- Attend a week of lectures introducing abstract algebra and number theory from the ground up
- Build up to modern cryptographic constructions and see how provable security works
- Learn from Lincoln Laboratory technical staff in a small-cohort classroom setting
- Attend daily during the program week (August 3-7 in 2026); the workshop is non-residential, so students arrange their own housing and transportation

## Who Should Apply

High school students — U.S. citizens or permanent residents — who enjoy mathematics or are curious about cybersecurity and want a taste of university-level theory. Students from underrepresented groups are strongly encouraged to apply. Because it is commuter-only, LLCipher fits students who can reach Cambridge, Massachusetts for the week.

## Outcomes

Participants leave with exposure to genuinely advanced mathematics rarely taught in high school, a connection to MIT Lincoln Laboratory's education pipeline (which also runs programs like LLRISE), and a clear signal of interest in cryptography and cybersecurity for future applications. Applications for 2026 closed April 15, 2026; the next cycle typically opens the following winter.

## Frequently asked questions

### How much does LLCipher cost?

LLCipher is completely free — there is no participation fee. Costs like travel or optional materials may still apply; check the official site for details.

### Who is eligible for LLCipher?

LLCipher is open to high school students in grades 9–12. Some programs have additional requirements (GPA, coursework, essays, or recommendations) — the full criteria are on the official site.

### Is LLCipher online or in person?

LLCipher is an in-person program based in Cambridge, MA.

### How do I apply to LLCipher?

Apply directly through MIT Lincoln Laboratory's official website. ExtracurricularHub links to the official application — we list and verify programs but don't process applications.

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Last updated: 2026-07-06.
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