Fix line endings. WHAMMY.

1 files changed, 393 insertions, 393 deletions

diff --git a/mp/src/mathlib/IceKey.cpp b/mp/src/mathlib/IceKey.cpp
index b5f910b7..e739ce6f 100644
--- a/mp/src/mathlib/IceKey.cpp
+++ b/mp/src/mathlib/IceKey.cpp
@@ -1,393 +1,393 @@
-// Purpose: C++ implementation of the ICE encryption algorithm.

-//			Taken from public domain code, as written by Matthew Kwan - July 1996

-//			http://www.darkside.com.au/ice/

-

-#if !defined(_STATIC_LINKED) || defined(_SHARED_LIB)

-

-#include "mathlib/IceKey.H"

-#include "tier0/memdbgon.h"

-#pragma warning(disable: 4244)

-

-

-	/* Structure of a single round subkey */

-class IceSubkey {

-    public:

-	unsigned long	val[3];

-};

-

-

-	/* The S-boxes */

-static unsigned long	ice_sbox[4][1024];

-static int		ice_sboxes_initialised = 0;

-

-

-	/* Modulo values for the S-boxes */

-static const int	ice_smod[4][4] = {

-				{333, 313, 505, 369},

-				{379, 375, 319, 391},

-				{361, 445, 451, 397},

-				{397, 425, 395, 505}};

-

-	/* XOR values for the S-boxes */

-static const int	ice_sxor[4][4] = {

-				{0x83, 0x85, 0x9b, 0xcd},

-				{0xcc, 0xa7, 0xad, 0x41},

-				{0x4b, 0x2e, 0xd4, 0x33},

-				{0xea, 0xcb, 0x2e, 0x04}};

-

-	/* Permutation values for the P-box */

-static const unsigned long	ice_pbox[32] = {

-		0x00000001, 0x00000080, 0x00000400, 0x00002000,

-		0x00080000, 0x00200000, 0x01000000, 0x40000000,

-		0x00000008, 0x00000020, 0x00000100, 0x00004000,

-		0x00010000, 0x00800000, 0x04000000, 0x20000000,

-		0x00000004, 0x00000010, 0x00000200, 0x00008000,

-		0x00020000, 0x00400000, 0x08000000, 0x10000000,

-		0x00000002, 0x00000040, 0x00000800, 0x00001000,

-		0x00040000, 0x00100000, 0x02000000, 0x80000000};

-

-	/* The key rotation schedule */

-static const int	ice_keyrot[16] = {

-				0, 1, 2, 3, 2, 1, 3, 0,

-				1, 3, 2, 0, 3, 1, 0, 2};

-

-

-/*

- * 8-bit Galois Field multiplication of a by b, modulo m.

- * Just like arithmetic multiplication, except that additions and

- * subtractions are replaced by XOR.

- */

-

-static unsigned int

-gf_mult (

-	register unsigned int	a,

-	register unsigned int	b,

-	register unsigned int	m

-) {

-	register unsigned int	res = 0;

-

-	while (b) {

-	    if (b & 1)

-		res ^= a;

-

-	    a <<= 1;

-	    b >>= 1;

-

-	    if (a >= 256)

-		a ^= m;

-	}

-

-	return (res);

-}

-

-

-/*

- * Galois Field exponentiation.

- * Raise the base to the power of 7, modulo m.

- */

-

-static unsigned long

-gf_exp7 (

-	register unsigned int	b,

-	unsigned int		m

-) {

-	register unsigned int	x;

-

-	if (b == 0)

-	    return (0);

-

-	x = gf_mult (b, b, m);

-	x = gf_mult (b, x, m);

-	x = gf_mult (x, x, m);

-	return (gf_mult (b, x, m));

-}

-

-

-/*

- * Carry out the ICE 32-bit P-box permutation.

- */

-

-static unsigned long

-ice_perm32 (

-	register unsigned long	x

-) {

-	register unsigned long		res = 0;

-	register const unsigned long	*pbox = ice_pbox;

-

-	while (x) {

-	    if (x & 1)

-		res |= *pbox;

-	    pbox++;

-	    x >>= 1;

-	}

-

-	return (res);

-}

-

-

-/*

- * Initialise the ICE S-boxes.

- * This only has to be done once.

- */

-

-static void

-ice_sboxes_init (void)

-{

-	register int	i;

-

-	for (i=0; i<1024; i++) {

-	    int			col = (i >> 1) & 0xff;

-	    int			row = (i & 0x1) | ((i & 0x200) >> 8);

-	    unsigned long	x;

-

-	    x = gf_exp7 (col ^ ice_sxor[0][row], ice_smod[0][row]) << 24;

-	    ice_sbox[0][i] = ice_perm32 (x);

-

-	    x = gf_exp7 (col ^ ice_sxor[1][row], ice_smod[1][row]) << 16;

-	    ice_sbox[1][i] = ice_perm32 (x);

-

-	    x = gf_exp7 (col ^ ice_sxor[2][row], ice_smod[2][row]) << 8;

-	    ice_sbox[2][i] = ice_perm32 (x);

-

-	    x = gf_exp7 (col ^ ice_sxor[3][row], ice_smod[3][row]);

-	    ice_sbox[3][i] = ice_perm32 (x);

-	}

-}

-

-

-/*

- * Create a new ICE key.

- */

-

-IceKey::IceKey (int n)

-{

-	if (!ice_sboxes_initialised) {

-	    ice_sboxes_init ();

-	    ice_sboxes_initialised = 1;

-	}

-

-	if (n < 1) {

-	    _size = 1;

-	    _rounds = 8;

-	} else {

-	    _size = n;

-	    _rounds = n * 16;

-	}

-

-	_keysched = new IceSubkey[_rounds];

-}

-

-

-/*

- * Destroy an ICE key.

- */

-

-IceKey::~IceKey ()

-{

-	int	i, j;

-

-	for (i=0; i<_rounds; i++)

-	    for (j=0; j<3; j++)

-		_keysched[i].val[j] = 0;

-

-	_rounds = _size = 0;

-

-	delete[] _keysched;

-}

-

-

-/*

- * The single round ICE f function.

- */

-

-static unsigned long

-ice_f (

-	register unsigned long	p,

-	const IceSubkey		*sk

-) {

-	unsigned long	tl, tr;		/* Expanded 40-bit values */

-	unsigned long	al, ar;		/* Salted expanded 40-bit values */

-

-					/* Left half expansion */

-	tl = ((p >> 16) & 0x3ff) | (((p >> 14) | (p << 18)) & 0xffc00);

-

-					/* Right half expansion */

-	tr = (p & 0x3ff) | ((p << 2) & 0xffc00);

-

-					/* Perform the salt permutation */

-			// al = (tr & sk->val[2]) | (tl & ~sk->val[2]);

-			// ar = (tl & sk->val[2]) | (tr & ~sk->val[2]);

-	al = sk->val[2] & (tl ^ tr);

-	ar = al ^ tr;

-	al ^= tl;

-

-	al ^= sk->val[0];		/* XOR with the subkey */

-	ar ^= sk->val[1];

-

-					/* S-box lookup and permutation */

-	return (ice_sbox[0][al >> 10] | ice_sbox[1][al & 0x3ff]

-		| ice_sbox[2][ar >> 10] | ice_sbox[3][ar & 0x3ff]);

-}

-

-

-/*

- * Encrypt a block of 8 bytes of data with the given ICE key.

- */

-

-void

-IceKey::encrypt (

-	const unsigned char	*ptext,

-	unsigned char		*ctext

-) const

-{

-	register int		i;

-	register unsigned long	l, r;

-

-	l = (((unsigned long) ptext[0]) << 24)

-				| (((unsigned long) ptext[1]) << 16)

-				| (((unsigned long) ptext[2]) << 8) | ptext[3];

-	r = (((unsigned long) ptext[4]) << 24)

-				| (((unsigned long) ptext[5]) << 16)

-				| (((unsigned long) ptext[6]) << 8) | ptext[7];

-

-	for (i = 0; i < _rounds; i += 2) {

-	    l ^= ice_f (r, &_keysched[i]);

-	    r ^= ice_f (l, &_keysched[i + 1]);

-	}

-

-	for (i = 0; i < 4; i++) {

-	    ctext[3 - i] = r & 0xff;

-	    ctext[7 - i] = l & 0xff;

-

-	    r >>= 8;

-	    l >>= 8;

-	}

-}

-

-

-/*

- * Decrypt a block of 8 bytes of data with the given ICE key.

- */

-

-void

-IceKey::decrypt (

-	const unsigned char	*ctext,

-	unsigned char		*ptext

-) const

-{

-	register int		i;

-	register unsigned long	l, r;

-

-	l = (((unsigned long) ctext[0]) << 24)

-				| (((unsigned long) ctext[1]) << 16)

-				| (((unsigned long) ctext[2]) << 8) | ctext[3];

-	r = (((unsigned long) ctext[4]) << 24)

-				| (((unsigned long) ctext[5]) << 16)

-				| (((unsigned long) ctext[6]) << 8) | ctext[7];

-

-	for (i = _rounds - 1; i > 0; i -= 2) {

-	    l ^= ice_f (r, &_keysched[i]);

-	    r ^= ice_f (l, &_keysched[i - 1]);

-	}

-

-	for (i = 0; i < 4; i++) {

-	    ptext[3 - i] = r & 0xff;

-	    ptext[7 - i] = l & 0xff;

-

-	    r >>= 8;

-	    l >>= 8;

-	}

-}

-

-

-/*

- * Set 8 rounds [n, n+7] of the key schedule of an ICE key.

- */

-

-void

-IceKey::scheduleBuild (

-	unsigned short	*kb,

-	int		n,

-	const int	*keyrot

-) {

-	int		i;

-

-	for (i=0; i<8; i++) {

-	    register int	j;

-	    register int	kr = keyrot[i];

-	    IceSubkey		*isk = &_keysched[n + i];

-

-	    for (j=0; j<3; j++)

-		isk->val[j] = 0;

-

-	    for (j=0; j<15; j++) {

-		register int	k;

-		unsigned long	*curr_sk = &isk->val[j % 3];

-

-		for (k=0; k<4; k++) {

-		    unsigned short	*curr_kb = &kb[(kr + k) & 3];

-		    register int	bit = *curr_kb & 1;

-

-		    *curr_sk = (*curr_sk << 1) | bit;

-		    *curr_kb = (*curr_kb >> 1) | ((bit ^ 1) << 15);

-		}

-	    }

-	}

-}

-

-

-/*

- * Set the key schedule of an ICE key.

- */

-

-void

-IceKey::set (

-	const unsigned char	*key

-) {

-	int		i;

-

-	if (_rounds == 8) {

-	    unsigned short	kb[4];

-

-	    for (i=0; i<4; i++)

-		kb[3 - i] = (key[i*2] << 8) | key[i*2 + 1];

-

-	    scheduleBuild (kb, 0, ice_keyrot);

-	    return;

-	}

-

-	for (i=0; i<_size; i++) {

-	    int			j;

-	    unsigned short	kb[4];

-

-	    for (j=0; j<4; j++)

-		kb[3 - j] = (key[i*8 + j*2] << 8) | key[i*8 + j*2 + 1];

-

-	    scheduleBuild (kb, i*8, ice_keyrot);

-	    scheduleBuild (kb, _rounds - 8 - i*8, &ice_keyrot[8]);

-	}

-}

-

-

-/*

- * Return the key size, in bytes.

- */

-

-int

-IceKey::keySize () const

-{

-	return (_size * 8);

-}

-

-

-/*

- * Return the block size, in bytes.

- */

-

-int

-IceKey::blockSize () const

-{

-	return (8);

-}

-

-#endif // !_STATIC_LINKED || _SHARED_LIB

+// Purpose: C++ implementation of the ICE encryption algorithm.
+//			Taken from public domain code, as written by Matthew Kwan - July 1996
+//			http://www.darkside.com.au/ice/
+
+#if !defined(_STATIC_LINKED) || defined(_SHARED_LIB)
+
+#include "mathlib/IceKey.H"
+#include "tier0/memdbgon.h"
+#pragma warning(disable: 4244)
+
+
+	/* Structure of a single round subkey */
+class IceSubkey {
+    public:
+	unsigned long	val[3];
+};
+
+
+	/* The S-boxes */
+static unsigned long	ice_sbox[4][1024];
+static int		ice_sboxes_initialised = 0;
+
+
+	/* Modulo values for the S-boxes */
+static const int	ice_smod[4][4] = {
+				{333, 313, 505, 369},
+				{379, 375, 319, 391},
+				{361, 445, 451, 397},
+				{397, 425, 395, 505}};
+
+	/* XOR values for the S-boxes */
+static const int	ice_sxor[4][4] = {
+				{0x83, 0x85, 0x9b, 0xcd},
+				{0xcc, 0xa7, 0xad, 0x41},
+				{0x4b, 0x2e, 0xd4, 0x33},
+				{0xea, 0xcb, 0x2e, 0x04}};
+
+	/* Permutation values for the P-box */
+static const unsigned long	ice_pbox[32] = {
+		0x00000001, 0x00000080, 0x00000400, 0x00002000,
+		0x00080000, 0x00200000, 0x01000000, 0x40000000,
+		0x00000008, 0x00000020, 0x00000100, 0x00004000,
+		0x00010000, 0x00800000, 0x04000000, 0x20000000,
+		0x00000004, 0x00000010, 0x00000200, 0x00008000,
+		0x00020000, 0x00400000, 0x08000000, 0x10000000,
+		0x00000002, 0x00000040, 0x00000800, 0x00001000,
+		0x00040000, 0x00100000, 0x02000000, 0x80000000};
+
+	/* The key rotation schedule */
+static const int	ice_keyrot[16] = {
+				0, 1, 2, 3, 2, 1, 3, 0,
+				1, 3, 2, 0, 3, 1, 0, 2};
+
+
+/*
+ * 8-bit Galois Field multiplication of a by b, modulo m.
+ * Just like arithmetic multiplication, except that additions and
+ * subtractions are replaced by XOR.
+ */
+
+static unsigned int
+gf_mult (
+	register unsigned int	a,
+	register unsigned int	b,
+	register unsigned int	m
+) {
+	register unsigned int	res = 0;
+
+	while (b) {
+	    if (b & 1)
+		res ^= a;
+
+	    a <<= 1;
+	    b >>= 1;
+
+	    if (a >= 256)
+		a ^= m;
+	}
+
+	return (res);
+}
+
+
+/*
+ * Galois Field exponentiation.
+ * Raise the base to the power of 7, modulo m.
+ */
+
+static unsigned long
+gf_exp7 (
+	register unsigned int	b,
+	unsigned int		m
+) {
+	register unsigned int	x;
+
+	if (b == 0)
+	    return (0);
+
+	x = gf_mult (b, b, m);
+	x = gf_mult (b, x, m);
+	x = gf_mult (x, x, m);
+	return (gf_mult (b, x, m));
+}
+
+
+/*
+ * Carry out the ICE 32-bit P-box permutation.
+ */
+
+static unsigned long
+ice_perm32 (
+	register unsigned long	x
+) {
+	register unsigned long		res = 0;
+	register const unsigned long	*pbox = ice_pbox;
+
+	while (x) {
+	    if (x & 1)
+		res |= *pbox;
+	    pbox++;
+	    x >>= 1;
+	}
+
+	return (res);
+}
+
+
+/*
+ * Initialise the ICE S-boxes.
+ * This only has to be done once.
+ */
+
+static void
+ice_sboxes_init (void)
+{
+	register int	i;
+
+	for (i=0; i<1024; i++) {
+	    int			col = (i >> 1) & 0xff;
+	    int			row = (i & 0x1) | ((i & 0x200) >> 8);
+	    unsigned long	x;
+
+	    x = gf_exp7 (col ^ ice_sxor[0][row], ice_smod[0][row]) << 24;
+	    ice_sbox[0][i] = ice_perm32 (x);
+
+	    x = gf_exp7 (col ^ ice_sxor[1][row], ice_smod[1][row]) << 16;
+	    ice_sbox[1][i] = ice_perm32 (x);
+
+	    x = gf_exp7 (col ^ ice_sxor[2][row], ice_smod[2][row]) << 8;
+	    ice_sbox[2][i] = ice_perm32 (x);
+
+	    x = gf_exp7 (col ^ ice_sxor[3][row], ice_smod[3][row]);
+	    ice_sbox[3][i] = ice_perm32 (x);
+	}
+}
+
+
+/*
+ * Create a new ICE key.
+ */
+
+IceKey::IceKey (int n)
+{
+	if (!ice_sboxes_initialised) {
+	    ice_sboxes_init ();
+	    ice_sboxes_initialised = 1;
+	}
+
+	if (n < 1) {
+	    _size = 1;
+	    _rounds = 8;
+	} else {
+	    _size = n;
+	    _rounds = n * 16;
+	}
+
+	_keysched = new IceSubkey[_rounds];
+}
+
+
+/*
+ * Destroy an ICE key.
+ */
+
+IceKey::~IceKey ()
+{
+	int	i, j;
+
+	for (i=0; i<_rounds; i++)
+	    for (j=0; j<3; j++)
+		_keysched[i].val[j] = 0;
+
+	_rounds = _size = 0;
+
+	delete[] _keysched;
+}
+
+
+/*
+ * The single round ICE f function.
+ */
+
+static unsigned long
+ice_f (
+	register unsigned long	p,
+	const IceSubkey		*sk
+) {
+	unsigned long	tl, tr;		/* Expanded 40-bit values */
+	unsigned long	al, ar;		/* Salted expanded 40-bit values */
+
+					/* Left half expansion */
+	tl = ((p >> 16) & 0x3ff) | (((p >> 14) | (p << 18)) & 0xffc00);
+
+					/* Right half expansion */
+	tr = (p & 0x3ff) | ((p << 2) & 0xffc00);
+
+					/* Perform the salt permutation */
+			// al = (tr & sk->val[2]) | (tl & ~sk->val[2]);
+			// ar = (tl & sk->val[2]) | (tr & ~sk->val[2]);
+	al = sk->val[2] & (tl ^ tr);
+	ar = al ^ tr;
+	al ^= tl;
+
+	al ^= sk->val[0];		/* XOR with the subkey */
+	ar ^= sk->val[1];
+
+					/* S-box lookup and permutation */
+	return (ice_sbox[0][al >> 10] | ice_sbox[1][al & 0x3ff]
+		| ice_sbox[2][ar >> 10] | ice_sbox[3][ar & 0x3ff]);
+}
+
+
+/*
+ * Encrypt a block of 8 bytes of data with the given ICE key.
+ */
+
+void
+IceKey::encrypt (
+	const unsigned char	*ptext,
+	unsigned char		*ctext
+) const
+{
+	register int		i;
+	register unsigned long	l, r;
+
+	l = (((unsigned long) ptext[0]) << 24)
+				| (((unsigned long) ptext[1]) << 16)
+				| (((unsigned long) ptext[2]) << 8) | ptext[3];
+	r = (((unsigned long) ptext[4]) << 24)
+				| (((unsigned long) ptext[5]) << 16)
+				| (((unsigned long) ptext[6]) << 8) | ptext[7];
+
+	for (i = 0; i < _rounds; i += 2) {
+	    l ^= ice_f (r, &_keysched[i]);
+	    r ^= ice_f (l, &_keysched[i + 1]);
+	}
+
+	for (i = 0; i < 4; i++) {
+	    ctext[3 - i] = r & 0xff;
+	    ctext[7 - i] = l & 0xff;
+
+	    r >>= 8;
+	    l >>= 8;
+	}
+}
+
+
+/*
+ * Decrypt a block of 8 bytes of data with the given ICE key.
+ */
+
+void
+IceKey::decrypt (
+	const unsigned char	*ctext,
+	unsigned char		*ptext
+) const
+{
+	register int		i;
+	register unsigned long	l, r;
+
+	l = (((unsigned long) ctext[0]) << 24)
+				| (((unsigned long) ctext[1]) << 16)
+				| (((unsigned long) ctext[2]) << 8) | ctext[3];
+	r = (((unsigned long) ctext[4]) << 24)
+				| (((unsigned long) ctext[5]) << 16)
+				| (((unsigned long) ctext[6]) << 8) | ctext[7];
+
+	for (i = _rounds - 1; i > 0; i -= 2) {
+	    l ^= ice_f (r, &_keysched[i]);
+	    r ^= ice_f (l, &_keysched[i - 1]);
+	}
+
+	for (i = 0; i < 4; i++) {
+	    ptext[3 - i] = r & 0xff;
+	    ptext[7 - i] = l & 0xff;
+
+	    r >>= 8;
+	    l >>= 8;
+	}
+}
+
+
+/*
+ * Set 8 rounds [n, n+7] of the key schedule of an ICE key.
+ */
+
+void
+IceKey::scheduleBuild (
+	unsigned short	*kb,
+	int		n,
+	const int	*keyrot
+) {
+	int		i;
+
+	for (i=0; i<8; i++) {
+	    register int	j;
+	    register int	kr = keyrot[i];
+	    IceSubkey		*isk = &_keysched[n + i];
+
+	    for (j=0; j<3; j++)
+		isk->val[j] = 0;
+
+	    for (j=0; j<15; j++) {
+		register int	k;
+		unsigned long	*curr_sk = &isk->val[j % 3];
+
+		for (k=0; k<4; k++) {
+		    unsigned short	*curr_kb = &kb[(kr + k) & 3];
+		    register int	bit = *curr_kb & 1;
+
+		    *curr_sk = (*curr_sk << 1) | bit;
+		    *curr_kb = (*curr_kb >> 1) | ((bit ^ 1) << 15);
+		}
+	    }
+	}
+}
+
+
+/*
+ * Set the key schedule of an ICE key.
+ */
+
+void
+IceKey::set (
+	const unsigned char	*key
+) {
+	int		i;
+
+	if (_rounds == 8) {
+	    unsigned short	kb[4];
+
+	    for (i=0; i<4; i++)
+		kb[3 - i] = (key[i*2] << 8) | key[i*2 + 1];
+
+	    scheduleBuild (kb, 0, ice_keyrot);
+	    return;
+	}
+
+	for (i=0; i<_size; i++) {
+	    int			j;
+	    unsigned short	kb[4];
+
+	    for (j=0; j<4; j++)
+		kb[3 - j] = (key[i*8 + j*2] << 8) | key[i*8 + j*2 + 1];
+
+	    scheduleBuild (kb, i*8, ice_keyrot);
+	    scheduleBuild (kb, _rounds - 8 - i*8, &ice_keyrot[8]);
+	}
+}
+
+
+/*
+ * Return the key size, in bytes.
+ */
+
+int
+IceKey::keySize () const
+{
+	return (_size * 8);
+}
+
+
+/*
+ * Return the block size, in bytes.
+ */
+
+int
+IceKey::blockSize () const
+{
+	return (8);
+}
+
+#endif // !_STATIC_LINKED || _SHARED_LIB