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-rw-r--r--sys/crypto/des/des_cbc.c331
1 files changed, 0 insertions, 331 deletions
diff --git a/sys/crypto/des/des_cbc.c b/sys/crypto/des/des_cbc.c
deleted file mode 100644
index 92de8f8..0000000
--- a/sys/crypto/des/des_cbc.c
+++ /dev/null
@@ -1,331 +0,0 @@
-/* $FreeBSD$ */
-/* $KAME: des_cbc.c,v 1.4 2000/06/14 10:41:17 itojun Exp $ */
-
-/*
- * heavily modified by Yoshifumi Nishida <nishida@sfc.wide.ad.jp>.
- * then, completely rewrote by Jun-ichiro itojun Itoh <itojun@itojun.org>,
- * 1997.
- */
-/* crypto/des/cbc_enc.c */
-/* Copyright (C) 1995-1996 Eric Young (eay@mincom.oz.au)
- * All rights reserved.
- *
- * This file is part of an SSL implementation written
- * by Eric Young (eay@mincom.oz.au).
- * The implementation was written so as to conform with Netscapes SSL
- * specification. This library and applications are
- * FREE FOR COMMERCIAL AND NON-COMMERCIAL USE
- * as long as the following conditions are aheared to.
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed. If this code is used in a product,
- * Eric Young should be given attribution as the author of the parts 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:
- * 1. Redistributions of source code must retain the copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by Eric Young (eay@mincom.oz.au)
- *
- * 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
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * 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
- * [including the GNU Public Licence.]
- */
-
-#include <crypto/des/des_locl.h>
-
-#define panic(x) do {printf(x); return EINVAL;} while (0)
-
-int des_cbc_encrypt(m0, skip, length, schedule, ivec, mode)
- struct mbuf *m0;
- size_t skip;
- size_t length;
- des_key_schedule schedule;
- des_cblock (*ivec);
- int mode;
-{
- u_int8_t inbuf[8], outbuf[8];
- struct mbuf *m;
- size_t off;
- register DES_LONG tin0, tin1;
- register DES_LONG tout0, tout1;
- DES_LONG tin[2];
- u_int8_t *iv;
-
- /* sanity checks */
- if (m0->m_pkthdr.len < skip) {
- printf("mbuf length < skip\n");
- return EINVAL;
- }
- if (m0->m_pkthdr.len < length) {
- printf("mbuf length < encrypt length\n");
- return EINVAL;
- }
- if (m0->m_pkthdr.len < skip + length) {
- printf("mbuf length < skip + encrypt length\n");
- return EINVAL;
- }
- if (length % 8) {
- printf("length is not multiple of 8\n");
- return EINVAL;
- }
-
- m = m0;
- off = 0;
-
- /* skip over the header */
- while (skip) {
- if (!m)
- panic("mbuf chain?\n");
- if (m->m_len <= skip) {
- skip -= m->m_len;
- m = m->m_next;
- off = 0;
- } else {
- off = skip;
- skip = 0;
- }
- }
-
- /* initialize */
- tin0 = tin1 = tout0 = tout1 = 0;
- tin[0] = tin[1] = 0;
-
- if (mode == DES_ENCRYPT) {
- u_int8_t *in, *out;
-
- iv = (u_int8_t *)ivec;
- c2l(iv, tout0);
- c2l(iv, tout1);
-
- while (0 < length) {
- if (!m)
- panic("mbuf chain?\n");
-
- /*
- * copy the source into input buffer.
- * don't update off or m, since we need to use them * later.
- */
- if (off + 8 <= m->m_len)
- bcopy(mtod(m, u_int8_t *) + off, &inbuf[0], 8);
- else {
- struct mbuf *n;
- size_t noff;
- u_int8_t *p;
- u_int8_t *in;
-
- n = m;
- noff = off;
- p = mtod(n, u_int8_t *) + noff;
-
- in = &inbuf[0];
- while (in - &inbuf[0] < 8) {
- if (!p)
- panic("mbuf chain?\n");
-
- *in++ = *p++;
- noff++;
- if (noff < n->m_len)
- continue;
- do {
- n = n->m_next;
- } while (n && ! n->m_len);
- noff = 0;
- if (n)
- p = mtod(n, u_int8_t *) + noff;
- else
- p = NULL;
- }
- }
-
- in = &inbuf[0];
- out = &outbuf[0];
- c2l(in, tin0);
- c2l(in, tin1);
-
- tin0 ^= tout0; tin[0] = tin0;
- tin1 ^= tout1; tin[1] = tin1;
- des_encrypt((DES_LONG *)tin, schedule, DES_ENCRYPT);
- tout0 = tin[0]; l2c(tout0, out);
- tout1 = tin[1]; l2c(tout1, out);
-
- /*
- * copy the output buffer into the result.
- * need to update off and m.
- */
- if (off + 8 < m->m_len) {
- bcopy(&outbuf[0], mtod(m, u_int8_t *) + off, 8);
- off += 8;
- } else if (off + 8 == m->m_len) {
- bcopy(&outbuf[0], mtod(m, u_int8_t *) + off, 8);
- do {
- m = m->m_next;
- } while (m && ! m->m_len);
- off = 0;
- } else {
- struct mbuf *n;
- size_t noff;
- u_int8_t *p;
- u_int8_t *out;
-
- n = m;
- noff = off;
- p = mtod(n, u_int8_t *) + noff;
-
- out = &outbuf[0];
- while (out - &outbuf[0] < 8) {
- if (!p)
- panic("mbuf chain?");
- *p++ = *out++;
- noff++;
- if (noff < n->m_len)
- continue;
- do {
- n = n->m_next;
- } while (n && ! n->m_len);
- noff = 0;
- if (n)
- p = mtod(n, u_int8_t *) + noff;
- else
- p = NULL;
- }
-
- m = n;
- off = noff;
- }
-
- length -= 8;
- }
- } else if (mode == DES_DECRYPT) {
- register DES_LONG xor0, xor1;
- u_int8_t *in, *out;
-
- xor0 = xor1 = 0;
- iv = (u_int8_t *)ivec;
- c2l(iv, xor0);
- c2l(iv, xor1);
-
- while (0 < length) {
- if (!m)
- panic("mbuf chain?\n");
-
- /*
- * copy the source into input buffer.
- * don't update off or m, since we need to use them * later.
- */
- if (off + 8 <= m->m_len)
- bcopy(mtod(m, u_int8_t *) + off, &inbuf[0], 8);
- else {
- struct mbuf *n;
- size_t noff;
- u_int8_t *p;
- u_int8_t *in;
-
- n = m;
- noff = off;
- p = mtod(n, u_int8_t *) + noff;
-
- in = &inbuf[0];
- while (in - &inbuf[0] < 8) {
- if (!p)
- panic("mbuf chain?\n");
- *in++ = *p++;
- noff++;
- if (noff < n->m_len)
- continue;
- do {
- n = n->m_next;
- } while (n && ! n->m_len);
- noff = 0;
- if (n)
- p = mtod(n, u_int8_t *) + noff;
- else
- p = NULL;
- }
- }
-
- in = &inbuf[0];
- out = &outbuf[0];
- c2l(in, tin0); tin[0] = tin0;
- c2l(in, tin1); tin[1] = tin1;
- des_encrypt((DES_LONG *)tin, schedule, DES_DECRYPT);
- tout0 = tin[0] ^ xor0;
- tout1 = tin[1] ^ xor1;
- l2c(tout0, out);
- l2c(tout1, out);
- xor0 = tin0;
- xor1 = tin1;
-
-
- /*
- * copy the output buffer into the result.
- * need to update off and m.
- */
- if (off + 8 < m->m_len) {
- bcopy(&outbuf[0], mtod(m, u_int8_t *) + off, 8);
- off += 8;
- } else if (off + 8 == m->m_len) {
- bcopy(&outbuf[0], mtod(m, u_int8_t *) + off, 8);
- do {
- m = m->m_next;
- } while (m && ! m->m_len);
- off = 0;
- } else {
- struct mbuf *n;
- size_t noff;
- u_int8_t *p;
- u_int8_t *out;
-
- n = m;
- noff = off;
- p = mtod(n, u_int8_t *) + noff;
-
- out = &outbuf[0];
- while (out - &outbuf[0] < 8) {
- if (!p)
- panic("mbuf chain?\n");
- *p++ = *out++;
- noff++;
- if (noff < n->m_len)
- continue;
- do {
- n = n->m_next;
- } while (n && ! n->m_len);
- noff = 0;
- if (n)
- p = mtod(n, u_int8_t *) + noff;
- else
- p = NULL;
- }
-
- m = n;
- off = noff;
- }
-
- length -= 8;
- }
- }
-
- return 0;
-}
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