<?php
use PHPUnit\Framework\TestCase;
class SipHashTest extends TestCase
{
/**
* @before
*/
public function before(): void
{
ParagonIE_Sodium_Compat::$disableFallbackForUnitTests = true;
}
/**
* @covers ParagonIE_Sodium_Core_SipHash::add()
*/
public function testAdd(): void
{
$vectors = array(
array(
0x0123456789abcdef,
0x456789abcdef0123,
0x468acf13579acf12
),
array(
0x0000000100000000,
0x0000000000000100,
0x0000000100000100
),
array(
0x0000000100000000,
0x0000000000000100,
0x0000000100000100
),
array(
0x0fffffffffffffff,
0x0000000000000001,
0x1000000000000000
)
);
foreach ($vectors as $v) {
list($a, $b, $c) = $v;
# $this->assertSame($c, PHP_INT_MAX & ($a + $b));
$sA = array(
$a >> 32,
$a & 0xffffffff
);
$sB = array(
$b >> 32,
$b & 0xffffffff
);
$sC = array(
($c >> 32) & 0xffffffff,
$c & 0xffffffff
);
$this->assertSame(
$sC,
ParagonIE_Sodium_Core_SipHash::add($sA, $sB)
);
}
}
/**
* @covers ParagonIE_Sodium_Core_SipHash::rotl_64()
*/
public function testRotl64(): void
{
$this->assertSame(
array(0x00010000, 0x00000000),
ParagonIE_Sodium_Core_SipHash::rotl_64(0x00000001, 0x00000000, 16),
'rotl_64 by 16'
);
$this->assertSame(
array(0x80000000, 0x00000000),
ParagonIE_Sodium_Core_SipHash::rotl_64(0x00000001, 0x00000000, 31),
'rotl_64 by 31'
);
$this->assertSame(
array(0x80000000, 0x00000000),
ParagonIE_Sodium_Core_SipHash::rotl_64(0x00000001, 0x00000000, 95),
'rotl_64 by 95 (reduce to 31)'
);
$this->assertSame(
array(0x00000000, 0x00000001),
ParagonIE_Sodium_Core_SipHash::rotl_64(0x00000001, 0x00000000, 32),
'rotl_64 by 32'
);
$this->assertSame(
array(0x00000000, 0x00000008),
ParagonIE_Sodium_Core_SipHash::rotl_64(0x00000001, 0x00000000, 35),
'rotl_64 by 35'
);
$this->assertSame(
array(0x00000000, 0x80000000),
ParagonIE_Sodium_Core_SipHash::rotl_64(0x00000001, 0x00000000, 63),
'rotl_64 by 63'
);
$this->assertSame(
array(0x00000001, 0x00000000),
ParagonIE_Sodium_Core_SipHash::rotl_64(0x00000001, 0x00000000, 64),
'rotl_64 by 64'
);
$this->assertSame(
array(0x7DDF575A, 0x3BD5BD5B),
ParagonIE_Sodium_Core_SipHash::rotl_64(0xDEADBEEF, 0xABAD1DEA, 17),
'rotl_64 by 64'
);
}
public function testSipRound(): void
{
$v = array(
0x736f6d65, // 0
0x70736575, // 1
0x646f7261, // 2
0x6e646f6d, // 3
0x6c796765, // 4
0x6e657261, // 5
0x74656462, // 6
0x79746573 // 7
);
$v = ParagonIE_Sodium_Core_SipHash::sipRound($v);
$result = array(
ParagonIE_Sodium_Core_Util::bin2hex(
ParagonIE_Sodium_Core_Util::store32_le($v[1]) .
ParagonIE_Sodium_Core_Util::store32_le($v[0])
),
ParagonIE_Sodium_Core_Util::bin2hex(
ParagonIE_Sodium_Core_Util::store32_le($v[3]) .
ParagonIE_Sodium_Core_Util::store32_le($v[2])
),
ParagonIE_Sodium_Core_Util::bin2hex(
ParagonIE_Sodium_Core_Util::store32_le($v[5]) .
ParagonIE_Sodium_Core_Util::store32_le($v[4])
),
ParagonIE_Sodium_Core_Util::bin2hex(
ParagonIE_Sodium_Core_Util::store32_le($v[7]) .
ParagonIE_Sodium_Core_Util::store32_le($v[6])
)
);
$this->assertEquals(
array(
'7783895a96879463',
'6623cacba61b65fe',
'd2bd711a4350143b',
'e114b92cc2d2e435'
),
$result
);
}
/**
* @covers ParagonIE_Sodium_Core_SipHash::sipHash24()
*/
public function testEvenBlock(): void
{
$message = str_repeat("\xff", 32);
$key = "\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10";
$this->assertSame(
'7f965c8b580df016',
ParagonIE_Sodium_Core_Util::bin2hex(
ParagonIE_Sodium_Core_SipHash::sipHash24($message, $key)
)
);
}
/**
* @covers ParagonIE_Sodium_Core_SipHash::sipHash24()
*/
public function testCryptoShorthash(): void
{
$message = 'this is just a test message';
$key = str_repeat("\x80", 16);
$this->assertSame(
'3f188259b01151a7',
ParagonIE_Sodium_Core_Util::bin2hex(
ParagonIE_Sodium_Core_SipHash::sipHash24($message, $key)
)
);
}
}
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