cyphar/paperback
Paper backup generator suitable for long-term storage. observed · 2026-08-28
Health v2 · maintenance only
54/100
- Activity 49
- Release rhythm 35
- Longevity 100
Flags: no_releases
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 3200
- days_rel: n/a
- days_push: 307
- n_releases_24m: 0
Adoption not part of the score
1478 stars · 58 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
paperback is a Rust CLI tool that creates encrypted paper backups suitable for long-term storage. It encrypts data and splits the secret key into Shamir secret-sharing key shards, generating printable PDF documents for each shard.
Use cases
- create a long-term paper backup of a secret key
- split a secret among multiple people with k-of-n threshold recovery
- set up a digital will recoverable without the creator present
- print and laminate encrypted backup documents
- store a recovery secret without anyone knowing the full key
When to choose
- you need a backup medium that survives decades without hardware or format dependencies
- you want threshold-based secret sharing among semi-trusted parties
- you want a user-friendly paper backup with generated PDFs
When to avoid
- you need machine-readable or fast-to-restore backups
- you cannot trust the format stability, since v0 formats may change without warning
- you need frequent automated backups rather than one-time archival
Facets
cli-tool · maturity experimental
cryptography backup pdf security security privacy developer-tools files windows cli cross-platform shamir-secret-sharing paper-backup encryption digital-will key-shards rust linux macos
1 source
- readme: https://github.com/cyphar/paperback · fetched 2026-08-28 · dd5ee4896f63
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| cyphar/paperback | main | 54 |
For agents
markdown · JSON · MCP: product_card(name="cyphar/paperback")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem