Libraries tagged by Ed25519

HTTP request signing and verification per RFC 9421 (HTTP Message Signatures), with no dependencies. The Node counterpart is @silversoft/api-signer.

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Parse, verify and sign signed notes — the transparency-log / Go sumdb format used by Sigstore Rekor checkpoints — in PHP

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Sign and verify DSSE (Dead Simple Signing Envelope) payloads in PHP, with pluggable keys

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A PHP library for UTXO-like bookkeeping using unspent entries.

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Tamper-evident receipts for AI inference calls: SHA-256 hash chain, RFC 8785 JCS canonicalization, Ed25519 signatures. Pure PHP, zero framework dependencies. EU AI Act Article 12 / NIST AI RMF aligned.

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Content provenance and signing for TYPO3 — Ed25519 digital signatures, audit trail, AI content tracking, and verification API.

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Offline verification of Zero Ad Network subscriber tokens for publisher backends. No dependencies beyond ext-sodium.

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A PHP 8.1+ JWT library (HMAC, RSA, ECDSA, EdDSA, RSASSA-PSS) with JWK/JWKS support, PSR-6 cached key sets, and built-in algorithm-confusion and alg=none protection.

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Framework-agnostic, offline license core: mint and verify compact Ed25519-signed license artifacts (EdDSA JWTs) with entitlements, limits, deployment/domain binding, grace windows and signed revocation lists. The shared leaf both a billing issuer and a self-hosted verifier depend on.

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A high-performance OpenPGP cryptography library for PHP and Laravel supporting RSA, ElGamal, Ed25519 (EdDSA), ECDSA, and ECDH. Modern, secure, and zero-dependency alternative to php-gnupg.

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Fast elliptic curve cryptography

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PHP client for aamio, the ephemeral rendezvous for agents: threads with a secret read key and a public write address that expire on time, receipts, presence, gate and proof of work, and the open board. No account, no API key.

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A generic, secure, reusable pairing and inter-application authentication layer for Laravel applications, using Ed25519-signed requests.

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Merchant open API SDK (Ed25519 / RFC 9421 signing, X25519 sealed box body encryption)

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Merchant open API SDK (Ed25519 / RFC 9421 signing, X25519 sealed box body encryption)

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