| 1 |
root |
1.1 |
NAME |
| 2 |
|
|
Crypt::Ed25519 - bare-bones Ed25519 public key signing/verification |
| 3 |
|
|
system |
| 4 |
|
|
|
| 5 |
|
|
SYNOPSIS |
| 6 |
|
|
use Crypt::Ed25519; # no symbols exported |
| 7 |
|
|
|
| 8 |
|
|
# generate a public/private key pair once |
| 9 |
|
|
($pubkey, $privkey) = Crypt::Ed25519::generate_keypair; |
| 10 |
|
|
|
| 11 |
|
|
# sign messages |
| 12 |
|
|
$signature = Crypt::Ed25519::sign $message, $pubkey, $privkey; |
| 13 |
|
|
|
| 14 |
|
|
# verify message |
| 15 |
|
|
$valid = Crypt::Ed25519::verify $message, $pubkey, $signature; |
| 16 |
|
|
|
| 17 |
|
|
# verify, but croak on failure |
| 18 |
|
|
Crypt::Ed25519::verify_croak $message, $pubkey, $signature; |
| 19 |
|
|
|
| 20 |
|
|
DESCRIPTION |
| 21 |
|
|
This module implements Ed25519 public key generation, message signing |
| 22 |
|
|
and verification. It is a pretty bare-bones implementation that |
| 23 |
|
|
implements the standard Ed25519 variant with SHA512 hash. |
| 24 |
|
|
|
| 25 |
|
|
The security target for Ed25519 is to be equivalent to 3000 bit RSA or |
| 26 |
|
|
AES-128. |
| 27 |
|
|
|
| 28 |
|
|
The advantages of Ed25519 over most other signaturer algorithms are: |
| 29 |
|
|
small public/private key and signature sizes (<= 64 octets), good key |
| 30 |
|
|
generation, signing and verification performance, no reliance on random |
| 31 |
|
|
number generators for signing and by-design immunity against branch or |
| 32 |
|
|
memory access pattern side-channel attacks. |
| 33 |
|
|
|
| 34 |
|
|
More detailed praise and other info can be found at |
| 35 |
|
|
<http://ed25519.cr.yp.to/index.html>. |
| 36 |
|
|
|
| 37 |
|
|
IMPLEMENTATIOIN |
| 38 |
|
|
This module currently uses "Nightcracker's Ed25519" implementation, but |
| 39 |
|
|
the interface is kept implementation-agnostic to allow usage of other |
| 40 |
|
|
implementations in the future. |
| 41 |
|
|
|
| 42 |
|
|
AUTHOR |
| 43 |
|
|
Marc Lehmann <schmorp@schmorp.de> |
| 44 |
|
|
http://sfotware.schmorp.de/pkg/Crypt-Ed25519.html |
| 45 |
|
|
|
