Libraries tagged by curve

Pure PHP implementation of libsodium; uses the PHP extension if it exists

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High-level cryptography interface powered by libsodium

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fast openSSL-compatible implementation of the Elliptic Curve Digital Signature Algorithm (ECDSA)

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Fast elliptic curve cryptography

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PHP Elliptic Curve Cryptography library

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PHP Elliptic Curve Cryptography library

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Pure PHP secp256k1

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Phactor is a high-performance PHP implementation of the elliptic curve math functions required to generate & verify private/public (asymmetric) EC keypairs and ECDSA signatures based on secp256k1 curve parameters. This library also includes a class to generate Service Identification Numbers (SINs) based on the published Identity Protocol v1 spec.

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Curve25519 sign/verify

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PHP Elliptic Curve Cryptography library

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Pure PHP implementation of the Curve25519 Diffie-Hellman function

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Roboto has a dual nature. It has a mechanical skeleton and the forms are largely geometric. At the same time, the font features friendly and open curves. While some grotesks distort their letterforms to force a rigid rhythm, Roboto doesn’t compromise, allowing letters to be settled into their natural width. This makes for a more natural reading rhythm more commonly found in humanist and serif types.

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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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secp256k1 elliptic-curve arithmetic + RFC 6979 deterministic ECDSA sign / verify / recover in pure PHP on ext-gmp.

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An Elliptic Curve Diffie Hellman implementation in PHP

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