|
public static createFromDecimal ( integer $value ) : |
||
| $value | integer | |
| Результат | ||
/**
* RSAVP1.
*
* @param \Jose\KeyConverter\RSAKey $key
* @param \Jose\Util\BigInteger $s
*
* @return \Jose\Util\BigInteger|false
*/
private static function getRSAVP1(RSAKey $key, BigInteger $s)
{
if ($s->compare(BigInteger::createFromDecimal(0)) < 0 || $s->compare($key->getModulus()) > 0) {
return false;
}
return self::exponentiate($key, $s);
}
/**
* This method adds Chinese Remainder Theorem (CRT) parameters if primes 'p' and 'q' are available.
*/
private function populateCRT()
{
Assertion::keyExists($this->values, 'p', 'The prime "p" is not available.');
Assertion::keyExists($this->values, 'q', 'The prime "q" is not available.');
if (array_key_exists('dp', $this->values) && array_key_exists('dq', $this->values) && array_key_exists('qi', $this->values)) {
return;
}
$one = BigInteger::createFromDecimal(1);
$d = BigInteger::createFromBinaryString(Base64Url::decode($this->values['d']));
$p = BigInteger::createFromBinaryString(Base64Url::decode($this->values['p']));
$q = BigInteger::createFromBinaryString(Base64Url::decode($this->values['q']));
$this->values['dp'] = Base64Url::encode($d->mod($p->subtract($one))->toBytes());
$this->values['dq'] = Base64Url::encode($d->mod($q->subtract($one))->toBytes());
$this->values['qi'] = Base64Url::encode($q->modInverse($p)->toBytes());
}
