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NAME |
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Crypt::Ed25519 - bare-bones Ed25519 public key signing/verification |
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system |
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SYNOPSIS |
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use Crypt::Ed25519; # no symbols exported |
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# generate a public/private key pair once |
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($pubkey, $privkey) = Crypt::Ed25519::generate_keypair; |
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# sign messages |
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$signature = Crypt::Ed25519::sign $message, $pubkey, $privkey; |
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# verify message |
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$valid = Crypt::Ed25519::verify $message, $pubkey, $signature; |
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|
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# verify, but croak on failure |
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Crypt::Ed25519::verify_croak $message, $pubkey, $signature; |
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DESCRIPTION |
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This module implements Ed25519 public key generation, message signing |
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and verification. It is a pretty bare-bones implementation that |
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implements the standard Ed25519 variant with SHA512 hash. |
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The security target for Ed25519 is to be equivalent to 3000 bit RSA or |
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AES-128. |
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The advantages of Ed25519 over most other signaturer algorithms are: |
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small public/private key and signature sizes (<= 64 octets), good key |
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generation, signing and verification performance, no reliance on random |
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number generators for signing and by-design immunity against branch or |
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memory access pattern side-channel attacks. |
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More detailed praise and other info can be found at |
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<http://ed25519.cr.yp.to/index.html>. |
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IMPLEMENTATIOIN |
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This module currently uses "Nightcracker's Ed25519" implementation, but |
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the interface is kept implementation-agnostic to allow usage of other |
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implementations in the future. |
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|
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AUTHOR |
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Marc Lehmann <schmorp@schmorp.de> |
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http://sfotware.schmorp.de/pkg/Crypt-Ed25519.html |
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