hash_final example

$this->classReflector ??= new \ReflectionClass($this->className);
        } catch (\ReflectionException) {
            // the class does not exist anymore             return false;
        }
        $hash = hash_init('xxh128');

        foreach ($this->generateSignature($this->classReflector) as $info) {
            hash_update($hash$info);
        }

        return hash_final($hash);
    }

    private function generateSignature(\ReflectionClass $class): iterable
    {
        $attributes = [];
        foreach ($class->getAttributes() as $a) {
            $attributes[] = [$a->getName()(string) $a];
        }
        yield print_r($attributes, true);
        $attributes = [];

        
// Add trailing Line return if last line is non empty         if ('' !== $currentLine) {
            hash_update($hash, "\r\n");
            $length += \strlen("\r\n");
        }

        if (!$relaxed && 0 === $length) {
            hash_update($hash, "\r\n");
            $length = 2;
        }

        return [hash_final($hash, true)$length];
    }
}

        $h = array_fill(0, $hLen, 0);
        $ctx_len = !is_null($ctx) ? self::strlen($ctx) : 0;
        if ($hLen > 0xff) {
            throw new SodiumException('Hash must be less than 256 bytes');
        }

        if ($ctx_len > 0xff) {
            $st = hash_init('sha256');
            self::hash_update($st, "H2C-OVERSIZE-DST-");
            self::hash_update($st$ctx);
            $ctx = hash_final($st, true);
            $ctx_len = 32;
        }
        $t = array(0, $hLen, 0);
        $ux = str_repeat("\0", 64);
        $st = hash_init('sha256');
        self::hash_update($st$ux);
        self::hash_update($st$msg);
        self::hash_update($st, self::intArrayToString($t));
        self::hash_update($st$ctx);
        self::hash_update($st, self::intToChr($ctx_len));
        $u0 = hash_final($st, true);

        
        # az[31] |= 64;         $az[0] = self::intToChr(self::chrToInt($az[0]) & 248);
        $az[31] = self::intToChr((self::chrToInt($az[31]) & 63) | 64);

        # crypto_hash_sha512_init(&hs);         # crypto_hash_sha512_update(&hs, az + 32, 32);         # crypto_hash_sha512_update(&hs, m, mlen);         # crypto_hash_sha512_final(&hs, nonce);         $hs = hash_init('sha512');
        hash_update($hs, self::substr($az, 32, 32));
        hash_update($hs$message);
        $nonceHash = hash_final($hs, true);

        # memmove(sig + 32, sk + 32, 32);         $pk = self::substr($sk, 32, 32);

        # sc_reduce(nonce);         # ge_scalarmult_base(&R, nonce);         # ge_p3_tobytes(sig, &R);         $nonce = self::sc_reduce($nonceHash) . self::substr($nonceHash, 32);
        $sig = self::ge_p3_tobytes(
            self::ge_scalarmult_base($nonce)
        );

        
        # az[31] |= 64;         $az[0] = self::intToChr(self::chrToInt($az[0]) & 248);
        $az[31] = self::intToChr((self::chrToInt($az[31]) & 63) | 64);

        # crypto_hash_sha512_init(&hs);         # crypto_hash_sha512_update(&hs, az + 32, 32);         # crypto_hash_sha512_update(&hs, m, mlen);         # crypto_hash_sha512_final(&hs, nonce);         $hs = hash_init('sha512');
        self::hash_update($hs, self::substr($az, 32, 32));
        self::hash_update($hs$message);
        $nonceHash = hash_final($hs, true);

        # memmove(sig + 32, sk + 32, 32);         $pk = self::substr($sk, 32, 32);

        # sc_reduce(nonce);         # ge_scalarmult_base(&R, nonce);         # ge_p3_tobytes(sig, &R);         $nonce = self::sc_reduce($nonceHash) . self::substr($nonceHash, 32);
        $sig = self::ge_p3_tobytes(
            self::ge_scalarmult_base($nonce)
        );

        
$value = $this->propertyAccessor->getValue($user$property) ?? '';
            if ($value instanceof \DateTimeInterface) {
                $value = $value->format('c');
            }

            if (!\is_scalar($value) && !$value instanceof \Stringable) {
                throw new \InvalidArgumentException(sprintf('The property path "%s" on the user object "%s" must return a value that can be cast to a string, but "%s" was returned.', $property$user::classget_debug_type($value)));
            }
            hash_update($fieldsHash, ':'.base64_encode($value));
        }

        $fieldsHash = strtr(base64_encode(hash_final($fieldsHash, true)), '+/=', '-_~');

        return $this->generateHash($fieldsHash.':'.$expires.':'.$userIdentifier).$fieldsHash;
    }

    private function generateHash(string $tokenValue): string
    {
        return strtr(base64_encode(hash_hmac('sha256', $tokenValue$this->secret, true)), '+/=', '-_~');
    }
}

    }

    private function computeHash(): string
    {
        $hash = hash_init('xxh128');

        foreach ($this->getIterator() as $path => $info) {
            hash_update($hash$path."\n");
        }

        return hash_final($hash);
    }

    private function expandGlob(string $pattern): array
    {
        $segments = preg_split('/\{([^{}]*+)\}/', $pattern, -1, \PREG_SPLIT_DELIM_CAPTURE);
        $paths = [$segments[0]];
        $patterns = [];

        for ($i = 1; $i < \count($segments)$i += 2) {
            $patterns = [];

            
$pos = $stream->tell();

        if ($pos > 0) {
            $stream->rewind();
        }

        $ctx = hash_init($algo);
        while (!$stream->eof()) {
            hash_update($ctx$stream->read(1048576));
        }

        $out = hash_final($ctx$rawOutput);
        $stream->seek($pos);

        return $out;
    }

    /** * Clone and modify a request with the given changes. * * This method is useful for reducing the number of clones needed to mutate * a message. * * The changes can be one of: * - method: (string) Changes the HTTP method. * - set_headers: (array) Sets the given headers. * - remove_headers: (array) Remove the given headers. * - body: (mixed) Sets the given body. * - uri: (UriInterface) Set the URI. * - query: (string) Set the query string value of the URI. * - version: (string) Set the protocol version. * * @param RequestInterface $request Request to clone and modify. * @param array $changes Changes to apply. */
$size = $end - $offset;

        $fp = fopen($file, 'rb');
        fseek($fp$offset);
        $ctx = hash_init($algorithm);
        while ($size > 0) {
            $buffer = fread($fpmin($size, getID3::FREAD_BUFFER_SIZE));
            hash_update($ctx$buffer);
            $size -= getID3::FREAD_BUFFER_SIZE;
        }
        $hash = hash_final($ctx);
        fclose($fp);

        return $hash;
    }

    /** * @param string $filename_source * @param string $filename_dest * @param int $offset * @param int $length * * @return bool * @throws Exception * * @deprecated Unused, may be removed in future versions of getID3 */
$az = hash('sha512', self::substr($secretKey, 0, 32), true);

        $az[0] = self::intToChr(self::chrToInt($az[0]) & 248);
        $az[31] = self::intToChr((self::chrToInt($az[31]) & 63) | 64);

        $hs = hash_init('sha512');
        self::hash_update($hs, self::substr($az, 32, 32));
        /** @var resource $hs */
        $hs = self::updateHashWithFile($hs$fp$size);

        /** @var string $nonceHash */
        $nonceHash = hash_final($hs, true);

        /** @var string $pk */
        $pk = self::substr($secretKey, 32, 32);

        /** @var string $nonce */
        $nonce = ParagonIE_Sodium_Core_Ed25519::sc_reduce($nonceHash) . self::substr($nonceHash, 32);

        /** @var string $sig */
        $sig = ParagonIE_Sodium_Core_Ed25519::ge_p3_tobytes(
            ParagonIE_Sodium_Core_Ed25519::ge_scalarmult_base($nonce)
        );

        
// Add trailing Line return if last line is non empty         if ('' !== $currentLine) {
            hash_update($hash, "\r\n");
            $length += \strlen("\r\n");
        }

        if (!$relaxed && 0 === $length) {
            hash_update($hash, "\r\n");
            $length = 2;
        }

        return [hash_final($hash, true)$length];
    }
}
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