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: / proc / self / root / usr / local / psa / admin / plib / modules / grafana / vendor / lcobucci / jwt / src / Signer /
Filename : Ecdsa.php
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<?php

declare (strict_types=1);
namespace PleskGrafana\Lcobucci\JWT\Signer;

use PleskGrafana\Lcobucci\JWT\Signer\Ecdsa\MultibyteStringConverter;
use PleskGrafana\Lcobucci\JWT\Signer\Ecdsa\SignatureConverter;
use const OPENSSL_KEYTYPE_EC;
abstract class Ecdsa extends OpenSSL
{
    public function __construct(private readonly SignatureConverter $converter = new MultibyteStringConverter())
    {
    }
    public final function sign(string $payload, Key $key) : string
    {
        return $this->converter->fromAsn1($this->createSignature($key->contents(), $key->passphrase(), $payload), $this->pointLength());
    }
    public final function verify(string $expected, string $payload, Key $key) : bool
    {
        return $this->verifySignature($this->converter->toAsn1($expected, $this->pointLength()), $payload, $key->contents());
    }
    /** {@inheritDoc} */
    protected final function guardAgainstIncompatibleKey(int $type, int $lengthInBits) : void
    {
        if ($type !== OPENSSL_KEYTYPE_EC) {
            throw InvalidKeyProvided::incompatibleKeyType(self::KEY_TYPE_MAP[OPENSSL_KEYTYPE_EC], self::KEY_TYPE_MAP[$type]);
        }
        $expectedKeyLength = $this->expectedKeyLength();
        if ($lengthInBits !== $expectedKeyLength) {
            throw InvalidKeyProvided::incompatibleKeyLength($expectedKeyLength, $lengthInBits);
        }
    }
    /**
     * @internal
     *
     * @return positive-int
     */
    public abstract function expectedKeyLength() : int;
    /**
     * Returns the length of each point in the signature, so that we can calculate and verify R and S points properly
     *
     * @internal
     *
     * @return positive-int
     */
    public abstract function pointLength() : int;
}