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-rw-r--r--crypto/des/xcbc_enc.c279
1 files changed, 149 insertions, 130 deletions
diff --git a/crypto/des/xcbc_enc.c b/crypto/des/xcbc_enc.c
index 058cab6bce0c..6fe021be7583 100644
--- a/crypto/des/xcbc_enc.c
+++ b/crypto/des/xcbc_enc.c
@@ -5,21 +5,21 @@
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
- *
+ *
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
+ *
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
- *
+ *
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
@@ -34,10 +34,10 @@
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
+ * 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
+ *
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
@@ -49,7 +49,7 @@
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
- *
+ *
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
@@ -60,138 +60,157 @@
/* RSA's DESX */
-#if 0 /* broken code, preserved just in case anyone specifically looks for this */
-static const unsigned char desx_white_in2out[256]={
-0xBD,0x56,0xEA,0xF2,0xA2,0xF1,0xAC,0x2A,0xB0,0x93,0xD1,0x9C,0x1B,0x33,0xFD,0xD0,
-0x30,0x04,0xB6,0xDC,0x7D,0xDF,0x32,0x4B,0xF7,0xCB,0x45,0x9B,0x31,0xBB,0x21,0x5A,
-0x41,0x9F,0xE1,0xD9,0x4A,0x4D,0x9E,0xDA,0xA0,0x68,0x2C,0xC3,0x27,0x5F,0x80,0x36,
-0x3E,0xEE,0xFB,0x95,0x1A,0xFE,0xCE,0xA8,0x34,0xA9,0x13,0xF0,0xA6,0x3F,0xD8,0x0C,
-0x78,0x24,0xAF,0x23,0x52,0xC1,0x67,0x17,0xF5,0x66,0x90,0xE7,0xE8,0x07,0xB8,0x60,
-0x48,0xE6,0x1E,0x53,0xF3,0x92,0xA4,0x72,0x8C,0x08,0x15,0x6E,0x86,0x00,0x84,0xFA,
-0xF4,0x7F,0x8A,0x42,0x19,0xF6,0xDB,0xCD,0x14,0x8D,0x50,0x12,0xBA,0x3C,0x06,0x4E,
-0xEC,0xB3,0x35,0x11,0xA1,0x88,0x8E,0x2B,0x94,0x99,0xB7,0x71,0x74,0xD3,0xE4,0xBF,
-0x3A,0xDE,0x96,0x0E,0xBC,0x0A,0xED,0x77,0xFC,0x37,0x6B,0x03,0x79,0x89,0x62,0xC6,
-0xD7,0xC0,0xD2,0x7C,0x6A,0x8B,0x22,0xA3,0x5B,0x05,0x5D,0x02,0x75,0xD5,0x61,0xE3,
-0x18,0x8F,0x55,0x51,0xAD,0x1F,0x0B,0x5E,0x85,0xE5,0xC2,0x57,0x63,0xCA,0x3D,0x6C,
-0xB4,0xC5,0xCC,0x70,0xB2,0x91,0x59,0x0D,0x47,0x20,0xC8,0x4F,0x58,0xE0,0x01,0xE2,
-0x16,0x38,0xC4,0x6F,0x3B,0x0F,0x65,0x46,0xBE,0x7E,0x2D,0x7B,0x82,0xF9,0x40,0xB5,
-0x1D,0x73,0xF8,0xEB,0x26,0xC7,0x87,0x97,0x25,0x54,0xB1,0x28,0xAA,0x98,0x9D,0xA5,
-0x64,0x6D,0x7A,0xD4,0x10,0x81,0x44,0xEF,0x49,0xD6,0xAE,0x2E,0xDD,0x76,0x5C,0x2F,
-0xA7,0x1C,0xC9,0x09,0x69,0x9A,0x83,0xCF,0x29,0x39,0xB9,0xE9,0x4C,0xFF,0x43,0xAB,
- };
+#if 0 /* broken code, preserved just in case anyone
+ * specifically looks for this */
+static const unsigned char desx_white_in2out[256] = {
+ 0xBD, 0x56, 0xEA, 0xF2, 0xA2, 0xF1, 0xAC, 0x2A, 0xB0, 0x93, 0xD1, 0x9C,
+ 0x1B, 0x33, 0xFD, 0xD0,
+ 0x30, 0x04, 0xB6, 0xDC, 0x7D, 0xDF, 0x32, 0x4B, 0xF7, 0xCB, 0x45, 0x9B,
+ 0x31, 0xBB, 0x21, 0x5A,
+ 0x41, 0x9F, 0xE1, 0xD9, 0x4A, 0x4D, 0x9E, 0xDA, 0xA0, 0x68, 0x2C, 0xC3,
+ 0x27, 0x5F, 0x80, 0x36,
+ 0x3E, 0xEE, 0xFB, 0x95, 0x1A, 0xFE, 0xCE, 0xA8, 0x34, 0xA9, 0x13, 0xF0,
+ 0xA6, 0x3F, 0xD8, 0x0C,
+ 0x78, 0x24, 0xAF, 0x23, 0x52, 0xC1, 0x67, 0x17, 0xF5, 0x66, 0x90, 0xE7,
+ 0xE8, 0x07, 0xB8, 0x60,
+ 0x48, 0xE6, 0x1E, 0x53, 0xF3, 0x92, 0xA4, 0x72, 0x8C, 0x08, 0x15, 0x6E,
+ 0x86, 0x00, 0x84, 0xFA,
+ 0xF4, 0x7F, 0x8A, 0x42, 0x19, 0xF6, 0xDB, 0xCD, 0x14, 0x8D, 0x50, 0x12,
+ 0xBA, 0x3C, 0x06, 0x4E,
+ 0xEC, 0xB3, 0x35, 0x11, 0xA1, 0x88, 0x8E, 0x2B, 0x94, 0x99, 0xB7, 0x71,
+ 0x74, 0xD3, 0xE4, 0xBF,
+ 0x3A, 0xDE, 0x96, 0x0E, 0xBC, 0x0A, 0xED, 0x77, 0xFC, 0x37, 0x6B, 0x03,
+ 0x79, 0x89, 0x62, 0xC6,
+ 0xD7, 0xC0, 0xD2, 0x7C, 0x6A, 0x8B, 0x22, 0xA3, 0x5B, 0x05, 0x5D, 0x02,
+ 0x75, 0xD5, 0x61, 0xE3,
+ 0x18, 0x8F, 0x55, 0x51, 0xAD, 0x1F, 0x0B, 0x5E, 0x85, 0xE5, 0xC2, 0x57,
+ 0x63, 0xCA, 0x3D, 0x6C,
+ 0xB4, 0xC5, 0xCC, 0x70, 0xB2, 0x91, 0x59, 0x0D, 0x47, 0x20, 0xC8, 0x4F,
+ 0x58, 0xE0, 0x01, 0xE2,
+ 0x16, 0x38, 0xC4, 0x6F, 0x3B, 0x0F, 0x65, 0x46, 0xBE, 0x7E, 0x2D, 0x7B,
+ 0x82, 0xF9, 0x40, 0xB5,
+ 0x1D, 0x73, 0xF8, 0xEB, 0x26, 0xC7, 0x87, 0x97, 0x25, 0x54, 0xB1, 0x28,
+ 0xAA, 0x98, 0x9D, 0xA5,
+ 0x64, 0x6D, 0x7A, 0xD4, 0x10, 0x81, 0x44, 0xEF, 0x49, 0xD6, 0xAE, 0x2E,
+ 0xDD, 0x76, 0x5C, 0x2F,
+ 0xA7, 0x1C, 0xC9, 0x09, 0x69, 0x9A, 0x83, 0xCF, 0x29, 0x39, 0xB9, 0xE9,
+ 0x4C, 0xFF, 0x43, 0xAB,
+};
void DES_xwhite_in2out(const_DES_cblock *des_key, const_DES_cblock *in_white,
- DES_cblock *out_white)
- {
- int out0,out1;
- int i;
- const unsigned char *key = &(*des_key)[0];
- const unsigned char *in = &(*in_white)[0];
- unsigned char *out = &(*out_white)[0];
+ DES_cblock *out_white)
+{
+ int out0, out1;
+ int i;
+ const unsigned char *key = &(*des_key)[0];
+ const unsigned char *in = &(*in_white)[0];
+ unsigned char *out = &(*out_white)[0];
- out[0]=out[1]=out[2]=out[3]=out[4]=out[5]=out[6]=out[7]=0;
- out0=out1=0;
- for (i=0; i<8; i++)
- {
- out[i]=key[i]^desx_white_in2out[out0^out1];
- out0=out1;
- out1=(int)out[i&0x07];
- }
+ out[0] = out[1] = out[2] = out[3] = out[4] = out[5] = out[6] = out[7] = 0;
+ out0 = out1 = 0;
+ for (i = 0; i < 8; i++) {
+ out[i] = key[i] ^ desx_white_in2out[out0 ^ out1];
+ out0 = out1;
+ out1 = (int)out[i & 0x07];
+ }
- out0=out[0];
- out1=out[i]; /* BUG: out-of-bounds read */
- for (i=0; i<8; i++)
- {
- out[i]=in[i]^desx_white_in2out[out0^out1];
- out0=out1;
- out1=(int)out[i&0x07];
- }
- }
+ out0 = out[0];
+ out1 = out[i]; /* BUG: out-of-bounds read */
+ for (i = 0; i < 8; i++) {
+ out[i] = in[i] ^ desx_white_in2out[out0 ^ out1];
+ out0 = out1;
+ out1 = (int)out[i & 0x07];
+ }
+}
#endif
void DES_xcbc_encrypt(const unsigned char *in, unsigned char *out,
- long length, DES_key_schedule *schedule,
- DES_cblock *ivec, const_DES_cblock *inw,
- const_DES_cblock *outw, int enc)
- {
- register DES_LONG tin0,tin1;
- register DES_LONG tout0,tout1,xor0,xor1;
- register DES_LONG inW0,inW1,outW0,outW1;
- register const unsigned char *in2;
- register long l=length;
- DES_LONG tin[2];
- unsigned char *iv;
-
- in2 = &(*inw)[0];
- c2l(in2,inW0);
- c2l(in2,inW1);
- in2 = &(*outw)[0];
- c2l(in2,outW0);
- c2l(in2,outW1);
+ long length, DES_key_schedule *schedule,
+ DES_cblock *ivec, const_DES_cblock *inw,
+ const_DES_cblock *outw, int enc)
+{
+ register DES_LONG tin0, tin1;
+ register DES_LONG tout0, tout1, xor0, xor1;
+ register DES_LONG inW0, inW1, outW0, outW1;
+ register const unsigned char *in2;
+ register long l = length;
+ DES_LONG tin[2];
+ unsigned char *iv;
- iv = &(*ivec)[0];
+ in2 = &(*inw)[0];
+ c2l(in2, inW0);
+ c2l(in2, inW1);
+ in2 = &(*outw)[0];
+ c2l(in2, outW0);
+ c2l(in2, outW1);
- if (enc)
- {
- c2l(iv,tout0);
- c2l(iv,tout1);
- for (l-=8; l>=0; l-=8)
- {
- c2l(in,tin0);
- c2l(in,tin1);
- tin0^=tout0^inW0; tin[0]=tin0;
- tin1^=tout1^inW1; tin[1]=tin1;
- DES_encrypt1(tin,schedule,DES_ENCRYPT);
- tout0=tin[0]^outW0; l2c(tout0,out);
- tout1=tin[1]^outW1; l2c(tout1,out);
- }
- if (l != -8)
- {
- c2ln(in,tin0,tin1,l+8);
- tin0^=tout0^inW0; tin[0]=tin0;
- tin1^=tout1^inW1; tin[1]=tin1;
- DES_encrypt1(tin,schedule,DES_ENCRYPT);
- tout0=tin[0]^outW0; l2c(tout0,out);
- tout1=tin[1]^outW1; l2c(tout1,out);
- }
- iv = &(*ivec)[0];
- l2c(tout0,iv);
- l2c(tout1,iv);
- }
- else
- {
- c2l(iv,xor0);
- c2l(iv,xor1);
- for (l-=8; l>0; l-=8)
- {
- c2l(in,tin0); tin[0]=tin0^outW0;
- c2l(in,tin1); tin[1]=tin1^outW1;
- DES_encrypt1(tin,schedule,DES_DECRYPT);
- tout0=tin[0]^xor0^inW0;
- tout1=tin[1]^xor1^inW1;
- l2c(tout0,out);
- l2c(tout1,out);
- xor0=tin0;
- xor1=tin1;
- }
- if (l != -8)
- {
- c2l(in,tin0); tin[0]=tin0^outW0;
- c2l(in,tin1); tin[1]=tin1^outW1;
- DES_encrypt1(tin,schedule,DES_DECRYPT);
- tout0=tin[0]^xor0^inW0;
- tout1=tin[1]^xor1^inW1;
- l2cn(tout0,tout1,out,l+8);
- xor0=tin0;
- xor1=tin1;
- }
+ iv = &(*ivec)[0];
- iv = &(*ivec)[0];
- l2c(xor0,iv);
- l2c(xor1,iv);
- }
- tin0=tin1=tout0=tout1=xor0=xor1=0;
- inW0=inW1=outW0=outW1=0;
- tin[0]=tin[1]=0;
- }
+ if (enc) {
+ c2l(iv, tout0);
+ c2l(iv, tout1);
+ for (l -= 8; l >= 0; l -= 8) {
+ c2l(in, tin0);
+ c2l(in, tin1);
+ tin0 ^= tout0 ^ inW0;
+ tin[0] = tin0;
+ tin1 ^= tout1 ^ inW1;
+ tin[1] = tin1;
+ DES_encrypt1(tin, schedule, DES_ENCRYPT);
+ tout0 = tin[0] ^ outW0;
+ l2c(tout0, out);
+ tout1 = tin[1] ^ outW1;
+ l2c(tout1, out);
+ }
+ if (l != -8) {
+ c2ln(in, tin0, tin1, l + 8);
+ tin0 ^= tout0 ^ inW0;
+ tin[0] = tin0;
+ tin1 ^= tout1 ^ inW1;
+ tin[1] = tin1;
+ DES_encrypt1(tin, schedule, DES_ENCRYPT);
+ tout0 = tin[0] ^ outW0;
+ l2c(tout0, out);
+ tout1 = tin[1] ^ outW1;
+ l2c(tout1, out);
+ }
+ iv = &(*ivec)[0];
+ l2c(tout0, iv);
+ l2c(tout1, iv);
+ } else {
+ c2l(iv, xor0);
+ c2l(iv, xor1);
+ for (l -= 8; l > 0; l -= 8) {
+ c2l(in, tin0);
+ tin[0] = tin0 ^ outW0;
+ c2l(in, tin1);
+ tin[1] = tin1 ^ outW1;
+ DES_encrypt1(tin, schedule, DES_DECRYPT);
+ tout0 = tin[0] ^ xor0 ^ inW0;
+ tout1 = tin[1] ^ xor1 ^ inW1;
+ l2c(tout0, out);
+ l2c(tout1, out);
+ xor0 = tin0;
+ xor1 = tin1;
+ }
+ if (l != -8) {
+ c2l(in, tin0);
+ tin[0] = tin0 ^ outW0;
+ c2l(in, tin1);
+ tin[1] = tin1 ^ outW1;
+ DES_encrypt1(tin, schedule, DES_DECRYPT);
+ tout0 = tin[0] ^ xor0 ^ inW0;
+ tout1 = tin[1] ^ xor1 ^ inW1;
+ l2cn(tout0, tout1, out, l + 8);
+ xor0 = tin0;
+ xor1 = tin1;
+ }
+ iv = &(*ivec)[0];
+ l2c(xor0, iv);
+ l2c(xor1, iv);
+ }
+ tin0 = tin1 = tout0 = tout1 = xor0 = xor1 = 0;
+ inW0 = inW1 = outW0 = outW1 = 0;
+ tin[0] = tin[1] = 0;
+}