/**
* Convert a binary string into a hexadecimal string without cache-timing
* leaks
*
* @param string $bin_string (raw binary)
* @return string
*/
public static function hexEncode(string $bin_string) : string
{
return Hex::encode($bin_string);
}
public function testEncoding()
{
$random_bytes = \random_bytes(31);
// Backwards compatibility:
$encoder = Halite::chooseEncoder(false);
$this->assertSame(Hex::encode($random_bytes), $encoder($random_bytes));
$encoder = Halite::chooseEncoder(true);
$this->assertSame(null, $encoder);
// New encoding in version 3:
$encoder = Halite::chooseEncoder(Halite::ENCODE_HEX);
$this->assertSame(Hex::encode($random_bytes), $encoder($random_bytes));
$encoder = Halite::chooseEncoder(Halite::ENCODE_BASE32);
$this->assertSame(Base32::encode($random_bytes), $encoder($random_bytes));
$encoder = Halite::chooseEncoder(Halite::ENCODE_BASE32HEX);
$this->assertSame(Base32Hex::encode($random_bytes), $encoder($random_bytes));
$encoder = Halite::chooseEncoder(Halite::ENCODE_BASE64);
$this->assertSame(Base64::encode($random_bytes), $encoder($random_bytes));
$encoder = Halite::chooseEncoder(Halite::ENCODE_BASE64URLSAFE);
$this->assertSame(Base64UrlSafe::encode($random_bytes), $encoder($random_bytes));
}