ius/rsatool
rsatool can be used to calculate RSA and RSA-CRT parameters observed · 2026-08-28
Health v2 · maintenance only
74/100
- Activity 93
- 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: 5357
- days_rel: n/a
- days_push: 44
- n_releases_24m: 0
Adoption not part of the score
1654 stars · 267 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
A Python command-line tool that computes RSA and RSA-CRT parameters (p, q, n, d, e, dP, dQ, qInv) from either two primes or a modulus and private exponent. It can output the resulting private key as OpenSSL-compatible PEM or DER files.
Use cases
- generate RSA private key from p and q primes
- reconstruct PEM key from modulus and private exponent
- calculate RSA-CRT parameters dP dQ qInv
- export RSA key as DER for OpenSSL
- build RSA keys for CTF crypto challenges
When to choose
- you already know RSA parameters and need a usable key file
- doing cryptographic analysis or CTF work involving RSA
- you need OpenSSL-compatible PEM/DER output from raw numbers
When to avoid
- you need to generate fresh, secure RSA keypairs for production
- you need general-purpose TLS or certificate management
Facets
cli-tool · maturity maintenance
cryptography cli security security developer-tools python cli cross-platform rsa rsa-crt private-key pem der openssl cryptography
1 source
- readme: https://github.com/ius/rsatool · fetched 2026-08-28 · 7fa9ab2d03de
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| ius/rsatool | main | 74 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem