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cb01bbf97b
This adds a pure PHP implementation of the cryptographic functions supported in PHP 7.2+. It provides the necessary backwards compatibility required to support signature verification and other security features going forward across all supported PHP versions. Props paragoninitiativeenterprises Fixes #45806. See #39309. Built from https://develop.svn.wordpress.org/trunk@44953 git-svn-id: http://core.svn.wordpress.org/trunk@44784 1a063a9b-81f0-0310-95a4-ce76da25c4cd
64 lines
1.5 KiB
PHP
64 lines
1.5 KiB
PHP
<?php
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if (class_exists('ParagonIE_Sodium_Core_Poly1305', false)) {
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return;
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}
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/**
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* Class ParagonIE_Sodium_Core_Poly1305
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*/
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abstract class ParagonIE_Sodium_Core_Poly1305 extends ParagonIE_Sodium_Core_Util
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{
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const BLOCK_SIZE = 16;
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/**
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* @internal You should not use this directly from another application
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*
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* @param string $m
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* @param string $key
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* @return string
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* @throws SodiumException
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* @throws TypeError
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*/
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public static function onetimeauth($m, $key)
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{
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if (self::strlen($key) < 32) {
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throw new InvalidArgumentException(
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'Key must be 32 bytes long.'
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);
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}
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$state = new ParagonIE_Sodium_Core_Poly1305_State(
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self::substr($key, 0, 32)
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);
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return $state
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->update($m)
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->finish();
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}
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/**
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* @internal You should not use this directly from another application
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*
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* @param string $mac
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* @param string $m
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* @param string $key
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* @return bool
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* @throws SodiumException
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* @throws TypeError
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*/
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public static function onetimeauth_verify($mac, $m, $key)
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{
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if (self::strlen($key) < 32) {
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throw new InvalidArgumentException(
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'Key must be 32 bytes long.'
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);
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}
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$state = new ParagonIE_Sodium_Core_Poly1305_State(
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self::substr($key, 0, 32)
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);
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$calc = $state
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->update($m)
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->finish();
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return self::verify_16($calc, $mac);
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}
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}
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