X-Git-Url: https://git.openssl.org/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fdes%2Fxcbc_enc.c;h=201ef70b7cf89a790dc206306d5404f4ac6e2a01;hp=bb910a080d56607628d907ef91f8f6464d98d207;hb=e2f80180271f3badc9dec6f3172009b57ba57842;hpb=3ba5d1cf2eb6ef28ac5f6d9f3d28020d00c5be50 diff --git a/crypto/des/xcbc_enc.c b/crypto/des/xcbc_enc.c index bb910a080d..201ef70b7c 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 @@ -60,136 +60,93 @@ /* RSA's DESX */ -static 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]; - - 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]; - for (i=0; i<8; i++) - { - out[i]=in[i]^desx_white_in2out[out0^out1]; - out0=out1; - out1=(int)out[i&0x07]; - } - } - -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); +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; - 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; +}