Libraries tagged by signing

Comprehensive cryptography toolkit built on libsodium - symmetric, asymmetric, AEAD, signing, key exchange, and KDF

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Define signature box coordinates on PDFs in Symfony: form type with PDF.js viewer, drag-and-drop placement, validation, and signing hooks.

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TUF (The Update Framework) client for PHP: fetch and verify signed metadata and targets

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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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Build, sign and verify in-toto attestation Statements (v1 and v0.1) 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 XML Security

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PHP Secure Communications Library (+Telegram-specific AES IGE primitives) - Pure-PHP implementations of RSA, AES, SSH2, SFTP, X.509 etc.

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Create certificates and CSRs locally and easy in the CLI using newest PHP OpenSSL features and ZeroSSL for signing.

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Vortos enterprise security — HTTP headers, CORS, CSRF, IP filtering, request signing, encryption, secrets, and data masking

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Vortos PayHere integration — hosted checkout signing, IPN verification with inbox, retrieval and refund APIs, behind the vortos-payments gateway contracts

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Vortos Deploy — provider-agnostic deployment orchestration: pure planner, strategy-as-policy (blue-green/rolling/recreate/canary), immutable definition surface (config/deploy.php), per-env layering with drift report, content-hashed reviewable plans (secret-free, signing-ready), and conformance TCKs for all driver ports. Built on the OpsKit driver pattern.

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Laravel 5/6 package for signing outgoing messages with DKIM.

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A minimal package for securely signing PSR-7 URIs in PHP applications.

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ECDSA signature value object with DER/JWS raw format conversion and curve-order validation. For Cloud KMS/HSM-based JWT signing where OpenSSL/KMS returns DER but JWT (RFC 7518) requires raw format.

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