https://github.com/saidone75/clj-ssh-keygen

Generate RSA PKCS #1 key-pairs from scratch (without 3rd party libs) in Clojure
https://github.com/saidone75/clj-ssh-keygen

authentication cryptography keygen keypair ssh ssh-key

Last synced: 3 months ago
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Generate RSA PKCS #1 key-pairs from scratch (without 3rd party libs) in Clojure

• Host: GitHub
• URL: https://github.com/saidone75/clj-ssh-keygen
• Owner: saidone75
• License: mit
• Created: 2020-05-09T16:30:17.000Z (over 5 years ago)
• Default Branch: master
• Last Pushed: 2024-07-01T06:02:12.000Z (over 1 year ago)
• Last Synced: 2025-10-21T23:58:10.562Z (3 months ago)
• Topics: authentication, cryptography, keygen, keypair, ssh, ssh-key
• Language: Clojure
• Homepage: https://saidone.org
• Size: 88.9 KB
• Stars: 16
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# clj-ssh-keygen

[![Clojars Project](https://img.shields.io/clojars/v/clj-ssh-keygen.svg)](https://clojars.org/clj-ssh-keygen)

[![cljdoc badge](https://cljdoc.org/badge/clj-ssh-keygen/clj-ssh-keygen)](https://cljdoc.org/d/clj-ssh-keygen/clj-ssh-keygen)

Generate RSA PKCS #1 keys **from scratch** and **without 3rd party libs** in Clojure, export **PEM** and **OpenSSH** formats

*☛ intended for hacking and educational purposes only!*

![public key](https://i.postimg.cc/HLhvSkpk/pubkey.png)

## Usage

```clojure

 (let [key (generate-key)]

    (write-private-key! key "pvt.pem")

    (write-public-key! key "pub.pem")

    (write-openssh-public-key! key "id_rsa.pub")))

```

for generating a default (2048 bit) length key, while:

```clojure

(write-private-key! (generate-key 2345) "pvt.pem")

```

will issue a custom length key:

```console

$ openssl rsa -noout -text -in pvt.pem|head -n 1

RSA Private-Key: (2345 bit, 2 primes)

```

## License

Copyright (c) 2020-2024 Saidone

Distributed under the MIT License