--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-includes/sodium_compat/src/Core32/ChaCha20.php Mon Oct 14 18:28:13 2019 +0200
@@ -0,0 +1,400 @@
+<?php
+
+if (class_exists('ParagonIE_Sodium_Core32_ChaCha20', false)) {
+ return;
+}
+
+/**
+ * Class ParagonIE_Sodium_Core32_ChaCha20
+ */
+class ParagonIE_Sodium_Core32_ChaCha20 extends ParagonIE_Sodium_Core32_Util
+{
+ /**
+ * The ChaCha20 quarter round function. Works on four 32-bit integers.
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param ParagonIE_Sodium_Core32_Int32 $a
+ * @param ParagonIE_Sodium_Core32_Int32 $b
+ * @param ParagonIE_Sodium_Core32_Int32 $c
+ * @param ParagonIE_Sodium_Core32_Int32 $d
+ * @return array<int, ParagonIE_Sodium_Core32_Int32>
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ protected static function quarterRound(
+ ParagonIE_Sodium_Core32_Int32 $a,
+ ParagonIE_Sodium_Core32_Int32 $b,
+ ParagonIE_Sodium_Core32_Int32 $c,
+ ParagonIE_Sodium_Core32_Int32 $d
+ ) {
+ /** @var ParagonIE_Sodium_Core32_Int32 $a */
+ /** @var ParagonIE_Sodium_Core32_Int32 $b */
+ /** @var ParagonIE_Sodium_Core32_Int32 $c */
+ /** @var ParagonIE_Sodium_Core32_Int32 $d */
+
+ # a = PLUS(a,b); d = ROTATE(XOR(d,a),16);
+ $a = $a->addInt32($b);
+ $d = $d->xorInt32($a)->rotateLeft(16);
+
+ # c = PLUS(c,d); b = ROTATE(XOR(b,c),12);
+ $c = $c->addInt32($d);
+ $b = $b->xorInt32($c)->rotateLeft(12);
+
+ # a = PLUS(a,b); d = ROTATE(XOR(d,a), 8);
+ $a = $a->addInt32($b);
+ $d = $d->xorInt32($a)->rotateLeft(8);
+
+ # c = PLUS(c,d); b = ROTATE(XOR(b,c), 7);
+ $c = $c->addInt32($d);
+ $b = $b->xorInt32($c)->rotateLeft(7);
+
+ return array($a, $b, $c, $d);
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param ParagonIE_Sodium_Core32_ChaCha20_Ctx $ctx
+ * @param string $message
+ *
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function encryptBytes(
+ ParagonIE_Sodium_Core32_ChaCha20_Ctx $ctx,
+ $message = ''
+ ) {
+ $bytes = self::strlen($message);
+
+ /** @var ParagonIE_Sodium_Core32_Int32 $x0 */
+ /** @var ParagonIE_Sodium_Core32_Int32 $x1 */
+ /** @var ParagonIE_Sodium_Core32_Int32 $x2 */
+ /** @var ParagonIE_Sodium_Core32_Int32 $x3 */
+ /** @var ParagonIE_Sodium_Core32_Int32 $x4 */
+ /** @var ParagonIE_Sodium_Core32_Int32 $x5 */
+ /** @var ParagonIE_Sodium_Core32_Int32 $x6 */
+ /** @var ParagonIE_Sodium_Core32_Int32 $x7 */
+ /** @var ParagonIE_Sodium_Core32_Int32 $x8 */
+ /** @var ParagonIE_Sodium_Core32_Int32 $x9 */
+ /** @var ParagonIE_Sodium_Core32_Int32 $x10 */
+ /** @var ParagonIE_Sodium_Core32_Int32 $x11 */
+ /** @var ParagonIE_Sodium_Core32_Int32 $x12 */
+ /** @var ParagonIE_Sodium_Core32_Int32 $x13 */
+ /** @var ParagonIE_Sodium_Core32_Int32 $x14 */
+ /** @var ParagonIE_Sodium_Core32_Int32 $x15 */
+
+ /*
+ j0 = ctx->input[0];
+ j1 = ctx->input[1];
+ j2 = ctx->input[2];
+ j3 = ctx->input[3];
+ j4 = ctx->input[4];
+ j5 = ctx->input[5];
+ j6 = ctx->input[6];
+ j7 = ctx->input[7];
+ j8 = ctx->input[8];
+ j9 = ctx->input[9];
+ j10 = ctx->input[10];
+ j11 = ctx->input[11];
+ j12 = ctx->input[12];
+ j13 = ctx->input[13];
+ j14 = ctx->input[14];
+ j15 = ctx->input[15];
+ */
+ /** @var ParagonIE_Sodium_Core32_Int32 $j0 */
+ $j0 = $ctx[0];
+ /** @var ParagonIE_Sodium_Core32_Int32 $j1 */
+ $j1 = $ctx[1];
+ /** @var ParagonIE_Sodium_Core32_Int32 $j2 */
+ $j2 = $ctx[2];
+ /** @var ParagonIE_Sodium_Core32_Int32 $j3 */
+ $j3 = $ctx[3];
+ /** @var ParagonIE_Sodium_Core32_Int32 $j4 */
+ $j4 = $ctx[4];
+ /** @var ParagonIE_Sodium_Core32_Int32 $j5 */
+ $j5 = $ctx[5];
+ /** @var ParagonIE_Sodium_Core32_Int32 $j6 */
+ $j6 = $ctx[6];
+ /** @var ParagonIE_Sodium_Core32_Int32 $j7 */
+ $j7 = $ctx[7];
+ /** @var ParagonIE_Sodium_Core32_Int32 $j8 */
+ $j8 = $ctx[8];
+ /** @var ParagonIE_Sodium_Core32_Int32 $j9 */
+ $j9 = $ctx[9];
+ /** @var ParagonIE_Sodium_Core32_Int32 $j10 */
+ $j10 = $ctx[10];
+ /** @var ParagonIE_Sodium_Core32_Int32 $j11 */
+ $j11 = $ctx[11];
+ /** @var ParagonIE_Sodium_Core32_Int32 $j12 */
+ $j12 = $ctx[12];
+ /** @var ParagonIE_Sodium_Core32_Int32 $j13 */
+ $j13 = $ctx[13];
+ /** @var ParagonIE_Sodium_Core32_Int32 $j14 */
+ $j14 = $ctx[14];
+ /** @var ParagonIE_Sodium_Core32_Int32 $j15 */
+ $j15 = $ctx[15];
+
+ $c = '';
+ for (;;) {
+ if ($bytes < 64) {
+ $message .= str_repeat("\x00", 64 - $bytes);
+ }
+
+ $x0 = clone $j0;
+ $x1 = clone $j1;
+ $x2 = clone $j2;
+ $x3 = clone $j3;
+ $x4 = clone $j4;
+ $x5 = clone $j5;
+ $x6 = clone $j6;
+ $x7 = clone $j7;
+ $x8 = clone $j8;
+ $x9 = clone $j9;
+ $x10 = clone $j10;
+ $x11 = clone $j11;
+ $x12 = clone $j12;
+ $x13 = clone $j13;
+ $x14 = clone $j14;
+ $x15 = clone $j15;
+
+ # for (i = 20; i > 0; i -= 2) {
+ for ($i = 20; $i > 0; $i -= 2) {
+ # QUARTERROUND( x0, x4, x8, x12)
+ list($x0, $x4, $x8, $x12) = self::quarterRound($x0, $x4, $x8, $x12);
+
+ # QUARTERROUND( x1, x5, x9, x13)
+ list($x1, $x5, $x9, $x13) = self::quarterRound($x1, $x5, $x9, $x13);
+
+ # QUARTERROUND( x2, x6, x10, x14)
+ list($x2, $x6, $x10, $x14) = self::quarterRound($x2, $x6, $x10, $x14);
+
+ # QUARTERROUND( x3, x7, x11, x15)
+ list($x3, $x7, $x11, $x15) = self::quarterRound($x3, $x7, $x11, $x15);
+
+ # QUARTERROUND( x0, x5, x10, x15)
+ list($x0, $x5, $x10, $x15) = self::quarterRound($x0, $x5, $x10, $x15);
+
+ # QUARTERROUND( x1, x6, x11, x12)
+ list($x1, $x6, $x11, $x12) = self::quarterRound($x1, $x6, $x11, $x12);
+
+ # QUARTERROUND( x2, x7, x8, x13)
+ list($x2, $x7, $x8, $x13) = self::quarterRound($x2, $x7, $x8, $x13);
+
+ # QUARTERROUND( x3, x4, x9, x14)
+ list($x3, $x4, $x9, $x14) = self::quarterRound($x3, $x4, $x9, $x14);
+ }
+ /*
+ x0 = PLUS(x0, j0);
+ x1 = PLUS(x1, j1);
+ x2 = PLUS(x2, j2);
+ x3 = PLUS(x3, j3);
+ x4 = PLUS(x4, j4);
+ x5 = PLUS(x5, j5);
+ x6 = PLUS(x6, j6);
+ x7 = PLUS(x7, j7);
+ x8 = PLUS(x8, j8);
+ x9 = PLUS(x9, j9);
+ x10 = PLUS(x10, j10);
+ x11 = PLUS(x11, j11);
+ x12 = PLUS(x12, j12);
+ x13 = PLUS(x13, j13);
+ x14 = PLUS(x14, j14);
+ x15 = PLUS(x15, j15);
+ */
+ $x0 = $x0->addInt32($j0);
+ $x1 = $x1->addInt32($j1);
+ $x2 = $x2->addInt32($j2);
+ $x3 = $x3->addInt32($j3);
+ $x4 = $x4->addInt32($j4);
+ $x5 = $x5->addInt32($j5);
+ $x6 = $x6->addInt32($j6);
+ $x7 = $x7->addInt32($j7);
+ $x8 = $x8->addInt32($j8);
+ $x9 = $x9->addInt32($j9);
+ $x10 = $x10->addInt32($j10);
+ $x11 = $x11->addInt32($j11);
+ $x12 = $x12->addInt32($j12);
+ $x13 = $x13->addInt32($j13);
+ $x14 = $x14->addInt32($j14);
+ $x15 = $x15->addInt32($j15);
+
+ /*
+ x0 = XOR(x0, LOAD32_LE(m + 0));
+ x1 = XOR(x1, LOAD32_LE(m + 4));
+ x2 = XOR(x2, LOAD32_LE(m + 8));
+ x3 = XOR(x3, LOAD32_LE(m + 12));
+ x4 = XOR(x4, LOAD32_LE(m + 16));
+ x5 = XOR(x5, LOAD32_LE(m + 20));
+ x6 = XOR(x6, LOAD32_LE(m + 24));
+ x7 = XOR(x7, LOAD32_LE(m + 28));
+ x8 = XOR(x8, LOAD32_LE(m + 32));
+ x9 = XOR(x9, LOAD32_LE(m + 36));
+ x10 = XOR(x10, LOAD32_LE(m + 40));
+ x11 = XOR(x11, LOAD32_LE(m + 44));
+ x12 = XOR(x12, LOAD32_LE(m + 48));
+ x13 = XOR(x13, LOAD32_LE(m + 52));
+ x14 = XOR(x14, LOAD32_LE(m + 56));
+ x15 = XOR(x15, LOAD32_LE(m + 60));
+ */
+ $x0 = $x0->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 0, 4)));
+ $x1 = $x1->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 4, 4)));
+ $x2 = $x2->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 8, 4)));
+ $x3 = $x3->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 12, 4)));
+ $x4 = $x4->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 16, 4)));
+ $x5 = $x5->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 20, 4)));
+ $x6 = $x6->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 24, 4)));
+ $x7 = $x7->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 28, 4)));
+ $x8 = $x8->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 32, 4)));
+ $x9 = $x9->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 36, 4)));
+ $x10 = $x10->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 40, 4)));
+ $x11 = $x11->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 44, 4)));
+ $x12 = $x12->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 48, 4)));
+ $x13 = $x13->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 52, 4)));
+ $x14 = $x14->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 56, 4)));
+ $x15 = $x15->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 60, 4)));
+
+ /*
+ j12 = PLUSONE(j12);
+ if (!j12) {
+ j13 = PLUSONE(j13);
+ }
+ */
+ /** @var ParagonIE_Sodium_Core32_Int32 $j12 */
+ $j12 = $j12->addInt(1);
+ if ($j12->limbs[0] === 0 && $j12->limbs[1] === 0) {
+ $j13 = $j13->addInt(1);
+ }
+
+ /*
+ STORE32_LE(c + 0, x0);
+ STORE32_LE(c + 4, x1);
+ STORE32_LE(c + 8, x2);
+ STORE32_LE(c + 12, x3);
+ STORE32_LE(c + 16, x4);
+ STORE32_LE(c + 20, x5);
+ STORE32_LE(c + 24, x6);
+ STORE32_LE(c + 28, x7);
+ STORE32_LE(c + 32, x8);
+ STORE32_LE(c + 36, x9);
+ STORE32_LE(c + 40, x10);
+ STORE32_LE(c + 44, x11);
+ STORE32_LE(c + 48, x12);
+ STORE32_LE(c + 52, x13);
+ STORE32_LE(c + 56, x14);
+ STORE32_LE(c + 60, x15);
+ */
+
+ $block = $x0->toReverseString() .
+ $x1->toReverseString() .
+ $x2->toReverseString() .
+ $x3->toReverseString() .
+ $x4->toReverseString() .
+ $x5->toReverseString() .
+ $x6->toReverseString() .
+ $x7->toReverseString() .
+ $x8->toReverseString() .
+ $x9->toReverseString() .
+ $x10->toReverseString() .
+ $x11->toReverseString() .
+ $x12->toReverseString() .
+ $x13->toReverseString() .
+ $x14->toReverseString() .
+ $x15->toReverseString();
+
+ /* Partial block */
+ if ($bytes < 64) {
+ $c .= self::substr($block, 0, $bytes);
+ break;
+ }
+
+ /* Full block */
+ $c .= $block;
+ $bytes -= 64;
+ if ($bytes <= 0) {
+ break;
+ }
+ $message = self::substr($message, 64);
+ }
+ /* end for(;;) loop */
+
+ $ctx[12] = $j12;
+ $ctx[13] = $j13;
+ return $c;
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param int $len
+ * @param string $nonce
+ * @param string $key
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function stream($len = 64, $nonce = '', $key = '')
+ {
+ return self::encryptBytes(
+ new ParagonIE_Sodium_Core32_ChaCha20_Ctx($key, $nonce),
+ str_repeat("\x00", $len)
+ );
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param int $len
+ * @param string $nonce
+ * @param string $key
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function ietfStream($len, $nonce = '', $key = '')
+ {
+ return self::encryptBytes(
+ new ParagonIE_Sodium_Core32_ChaCha20_IetfCtx($key, $nonce),
+ str_repeat("\x00", $len)
+ );
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param string $message
+ * @param string $nonce
+ * @param string $key
+ * @param string $ic
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function ietfStreamXorIc($message, $nonce = '', $key = '', $ic = '')
+ {
+ return self::encryptBytes(
+ new ParagonIE_Sodium_Core32_ChaCha20_IetfCtx($key, $nonce, $ic),
+ $message
+ );
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param string $message
+ * @param string $nonce
+ * @param string $key
+ * @param string $ic
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function streamXorIc($message, $nonce = '', $key = '', $ic = '')
+ {
+ return self::encryptBytes(
+ new ParagonIE_Sodium_Core32_ChaCha20_Ctx($key, $nonce, $ic),
+ $message
+ );
+ }
+}