Syntax Syntax
Parameters Parameters
- $ctx
-
(Required)
- $buf
-
(Required)
Return Return
(void)
Source Source
File: wp-includes/sodium_compat/src/Core32/BLAKE2b.php
protected static function compress(SplFixedArray $ctx, SplFixedArray $buf) { $m = new SplFixedArray(16); $v = new SplFixedArray(16); for ($i = 16; $i--;) { $m[$i] = self::load64($buf, $i << 3); } for ($i = 8; $i--;) { $v[$i] = $ctx[0][$i]; } $v[ 8] = self::$iv[0]; $v[ 9] = self::$iv[1]; $v[10] = self::$iv[2]; $v[11] = self::$iv[3]; $v[12] = self::xor64($ctx[1][0], self::$iv[4]); $v[13] = self::xor64($ctx[1][1], self::$iv[5]); $v[14] = self::xor64($ctx[2][0], self::$iv[6]); $v[15] = self::xor64($ctx[2][1], self::$iv[7]); for ($r = 0; $r < 12; ++$r) { $v = self::G($r, 0, 0, 4, 8, 12, $v, $m); $v = self::G($r, 1, 1, 5, 9, 13, $v, $m); $v = self::G($r, 2, 2, 6, 10, 14, $v, $m); $v = self::G($r, 3, 3, 7, 11, 15, $v, $m); $v = self::G($r, 4, 0, 5, 10, 15, $v, $m); $v = self::G($r, 5, 1, 6, 11, 12, $v, $m); $v = self::G($r, 6, 2, 7, 8, 13, $v, $m); $v = self::G($r, 7, 3, 4, 9, 14, $v, $m); } for ($i = 8; $i--;) { $ctx[0][$i] = self::xor64( $ctx[0][$i], self::xor64($v[$i], $v[$i+8]) ); } }