79 lines
2.1 KiB
PHP
79 lines
2.1 KiB
PHP
<?php
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namespace Core\Objects\TwoFactor;
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use Core\Objects\ApiObject;
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class AuthenticationData extends ApiObject {
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private string $rpIDHash;
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private int $flags;
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private int $counter;
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private string $aaguid;
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private string $credentialID;
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private PublicKey $publicKey;
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public function __construct(string $buffer) {
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if (strlen($buffer) < 32 + 1 + 4) {
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throw new \Exception("Invalid authentication data buffer size");
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}
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$offset = 0;
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$this->rpIDHash = substr($buffer, $offset, 32); $offset += 32;
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$this->flags = ord($buffer[$offset]); $offset += 1;
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$this->counter = unpack("N", $buffer, $offset)[1]; $offset += 4;
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if (strlen($buffer) >= $offset + 4 + 2) {
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$this->aaguid = substr($buffer, $offset, 16); $offset += 16;
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$credentialIdLength = unpack("n", $buffer, $offset)[1]; $offset += 2;
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$this->credentialID = substr($buffer, $offset, $credentialIdLength); $offset += $credentialIdLength;
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$credentialData = substr($buffer, $offset);
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$this->publicKey = new PublicKey($credentialData);
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}
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}
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public function jsonSerialize(): array {
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return [
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"rpIDHash" => base64_encode($this->rpIDHash),
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"flags" => $this->flags,
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"counter" => $this->counter,
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"aaguid" => base64_encode($this->aaguid),
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"credentialID" => base64_encode($this->credentialID),
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"publicKey" => $this->publicKey->jsonSerialize()
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];
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}
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public function getHash(): string {
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return $this->rpIDHash;
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}
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public function verifyIntegrity(string $rp): bool {
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return $this->rpIDHash === hash("sha256", $rp, true);
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}
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public function isUserPresent(): bool {
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return boolval($this->flags & (1 << 0));
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}
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public function isUserVerified(): bool {
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return boolval($this->flags & (1 << 2));
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}
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public function attestedCredentialData(): bool {
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return boolval($this->flags & (1 << 6));
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}
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public function hasExtensionData(): bool {
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return boolval($this->flags & (1 << 7));
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}
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public function getPublicKey(): PublicKey {
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return $this->publicKey;
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}
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public function getCredentialID() {
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return $this->credentialID;
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}
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} |