https://github.com/grondilu/elliptic-curves-raku

Elliptic curves cryptography in raku
https://github.com/grondilu/elliptic-curves-raku

cryptography eddsa secp256k1

Last synced: about 2 hours ago
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Elliptic curves cryptography in raku

• Host: GitHub
• URL: https://github.com/grondilu/elliptic-curves-raku
• Owner: grondilu
• License: mit
• Created: 2022-04-06T05:00:27.000Z (over 2 years ago)
• Default Branch: main
• Last Pushed: 2023-01-03T10:24:24.000Z (almost 2 years ago)
• Last Synced: 2023-03-11T15:52:39.470Z (over 1 year ago)
• Topics: cryptography, eddsa, secp256k1
• Language: Raku
• Homepage:
• Size: 48.8 KB
• Stars: 2
• Watchers: 2
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
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# Elliptic Curves Cryptography in raku

secp256k1 and ed25519 in [raku](http://raku.org)

## Synopsis

```raku

{

    use secp256k1;

    say G;

    say $_*G for 1..10;

    use Test;

    is 35*G + 5*G, 40*G;

}

{

    use ed25519;

    # create a key

    # - randomly :

    my ed25519::Key $key .= new;

    # - from a seed :

    my blob8 $secret-seed .= new: ^256 .roll: 32;

    my ed25519::Key $key .= new: $secret-seed;

    # use key to sign a message

    my $signature = $key.sign: "Hello world!";

    # verify signature

    use Test;

    lives-ok { ed25519::verify "foo", $key.sign("foo"), $key.point };

    dies-ok  { ed25519::verify "foo", $key.sign("bar"), $key.point };

}

```

    

   

References

----------

* [RFC 8032](http://www.rfc-editor.org/info/rfc8032)

* Jacobian coordinates:

  - [WikiBooks entry](https://en.wikibooks.org/wiki/Cryptography/Prime_Curve/Jacobian_Coordinates)

  - [hyperelliptic.org page](http://hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html)

* Chalkias, Konstantinos, et. al. ["Taming the many EdDSAs."](https://eprint.iacr.org/2020/1244.pdf) *Security Standardisation Research Conference*, Dec. 2020