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<?php |
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namespace mattvb91\TronTrx\Support; |
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/** |
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* @codeCoverageIgnore |
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*/ |
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class Crypto |
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{ |
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public static function bc2bin($num) |
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{ |
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return self::dec2base($num, 256); |
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} |
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public static function dec2base($dec, $base, $digits = false) |
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{ |
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if ($base < 2 || $base > 256) { |
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die("Invalid Base: " . $base); |
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} |
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bcscale(0); |
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$value = ""; |
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if (!$digits) { |
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$digits = self::digits($base); |
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} |
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while ($dec > $base - 1) { |
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$rest = bcmod($dec, $base); |
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$dec = bcdiv($dec, $base); |
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$value = $digits[$rest] . $value; |
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} |
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$value = $digits[intval($dec)] . $value; |
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return (string)$value; |
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} |
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public static function base2dec($value, $base, $digits = false) |
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{ |
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if ($base < 2 || $base > 256) { |
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die("Invalid Base: " . $base); |
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} |
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bcscale(0); |
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if ($base < 37) { |
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$value = strtolower($value); |
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} |
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if (!$digits) { |
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$digits = self::digits($base); |
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} |
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$size = strlen($value); |
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$dec = "0"; |
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for ($loop = 0; $loop < $size; $loop++) { |
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$element = strpos($digits, $value[$loop]); |
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$power = bcpow($base, $size - $loop - 1); |
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$dec = bcadd($dec, bcmul($element, $power)); |
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} |
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return (string)$dec; |
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} |
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public static function digits($base) |
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{ |
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if ($base > 64) { |
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$digits = ""; |
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for ($loop = 0; $loop < 256; $loop++) { |
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$digits .= chr($loop); |
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} |
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} else { |
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$digits = "0123456789abcdefghijklmnopqrstuvwxyz"; |
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$digits .= "ABCDEFGHIJKLMNOPQRSTUVWXYZ-_"; |
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} |
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$digits = substr($digits, 0, $base); |
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return (string)$digits; |
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} |
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public static function bin2bc($num) |
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{ |
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return self::base2dec($num, 256); |
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} |
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} |
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mattvb91 /
tron-trx-php
Loading history...
In general, usage of exit should be done with care and only when running in a scripting context like a CLI script.