17 lines
611 B
PHP
17 lines
611 B
PHP
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<?php
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namespace Incoviba\Service;
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use Incoviba\Common\Ideal;
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class HMAC extends Ideal\Service
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{
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public static function validate(string $timestamp, string $requestSignature, string $requestId, string $secret): bool
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{
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$message = "{$timestamp}.{$requestId}";
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$encodedSecret = mb_convert_encoding($secret, 'UTF-8');
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$encodedMessage = mb_convert_encoding($message, 'UTF-8');
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$hmacObject = hash_hmac('sha256', $encodedMessage, $encodedSecret);
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$computedSignature = base64_encode($hmacObject);
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return hash_equals($computedSignature, $requestSignature);
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}
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}
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