-# $OpenBSD: Makefile,v 1.187 2024/03/29 02:41:49 jsing Exp $
+# $OpenBSD: Makefile,v 1.188 2024/03/29 05:23:50 jsing Exp $
LIB= crypto
LIBREBUILD=y
SRCS+= hmac.c
# idea/
-SRCS+= i_cbc.c
-SRCS+= i_cfb64.c
-SRCS+= i_ecb.c
-SRCS+= i_ofb64.c
-SRCS+= i_skey.c
+SRCS+= idea.c
# kdf/
SRCS+= hkdf_evp.c
+++ /dev/null
-/* $OpenBSD: i_cfb64.c,v 1.6 2023/07/08 10:44:00 beck Exp $ */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * 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:
- * 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 cryptographic software written by
- * 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
- * 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
- * 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 <openssl/idea.h>
-#include "idea_local.h"
-
-/* The input and output encrypted as though 64bit cfb mode is being
- * used. The extra state information to record how much of the
- * 64bit block we have used is contained in *num;
- */
-
-void
-idea_cfb64_encrypt(const unsigned char *in, unsigned char *out,
- long length, IDEA_KEY_SCHEDULE *schedule,
- unsigned char *ivec, int *num, int encrypt)
-{
- unsigned long v0, v1, t;
- int n = *num;
- long l = length;
- unsigned long ti[2];
- unsigned char *iv, c, cc;
-
- iv = (unsigned char *)ivec;
- if (encrypt) {
- while (l--) {
- if (n == 0) {
- n2l(iv, v0);
- ti[0] = v0;
- n2l(iv, v1);
- ti[1] = v1;
- idea_encrypt((unsigned long *)ti, schedule);
- iv = (unsigned char *)ivec;
- t = ti[0];
- l2n(t, iv);
- t = ti[1];
- l2n(t, iv);
- iv = (unsigned char *)ivec;
- }
- c = *(in++) ^ iv[n];
- *(out++) = c;
- iv[n] = c;
- n = (n + 1) & 0x07;
- }
- } else {
- while (l--) {
- if (n == 0) {
- n2l(iv, v0);
- ti[0] = v0;
- n2l(iv, v1);
- ti[1] = v1;
- idea_encrypt((unsigned long *)ti, schedule);
- iv = (unsigned char *)ivec;
- t = ti[0];
- l2n(t, iv);
- t = ti[1];
- l2n(t, iv);
- iv = (unsigned char *)ivec;
- }
- cc = *(in++);
- c = iv[n];
- iv[n] = cc;
- *(out++) = c ^ cc;
- n = (n + 1) & 0x07;
- }
- }
- v0 = v1 = ti[0] = ti[1] = t = c = cc = 0;
- *num = n;
-}
-LCRYPTO_ALIAS(idea_cfb64_encrypt);
+++ /dev/null
-/* $OpenBSD: i_ecb.c,v 1.7 2023/07/28 10:35:14 tb Exp $ */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * 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:
- * 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 cryptographic software written by
- * 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
- * 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
- * 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 <openssl/idea.h>
-#include "idea_local.h"
-#include <openssl/opensslv.h>
-
-void
-idea_ecb_encrypt(const unsigned char *in, unsigned char *out,
- IDEA_KEY_SCHEDULE *ks)
-{
- unsigned long l0, l1, d[2];
-
- n2l(in, l0);
- d[0] = l0;
- n2l(in, l1);
- d[1] = l1;
- idea_encrypt(d, ks);
- l0 = d[0];
- l2n(l0, out);
- l1 = d[1];
- l2n(l1, out);
- l0 = l1 = d[0] = d[1] = 0;
-}
-LCRYPTO_ALIAS(idea_ecb_encrypt);
+++ /dev/null
-/* $OpenBSD: i_ofb64.c,v 1.6 2023/07/08 10:44:00 beck Exp $ */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * 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:
- * 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 cryptographic software written by
- * 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
- * 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
- * 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 <openssl/idea.h>
-#include "idea_local.h"
-
-/* The input and output encrypted as though 64bit ofb mode is being
- * used. The extra state information to record how much of the
- * 64bit block we have used is contained in *num;
- */
-void
-idea_ofb64_encrypt(const unsigned char *in, unsigned char *out,
- long length, IDEA_KEY_SCHEDULE *schedule,
- unsigned char *ivec, int *num)
-{
- unsigned long v0, v1, t;
- int n = *num;
- long l = length;
- unsigned char d[8];
- char *dp;
- unsigned long ti[2];
- unsigned char *iv;
- int save = 0;
-
- iv = (unsigned char *)ivec;
- n2l(iv, v0);
- n2l(iv, v1);
- ti[0] = v0;
- ti[1] = v1;
- dp = (char *)d;
- l2n(v0, dp);
- l2n(v1, dp);
- while (l--) {
- if (n == 0) {
- idea_encrypt((unsigned long *)ti, schedule);
- dp = (char *)d;
- t = ti[0];
- l2n(t, dp);
- t = ti[1];
- l2n(t, dp);
- save++;
- }
- *(out++) = *(in++) ^ d[n];
- n = (n + 1) & 0x07;
- }
- if (save) {
- v0 = ti[0];
- v1 = ti[1];
- iv = (unsigned char *)ivec;
- l2n(v0, iv);
- l2n(v1, iv);
- }
- t = v0 = v1 = ti[0] = ti[1] = 0;
- *num = n;
-}
-LCRYPTO_ALIAS(idea_ofb64_encrypt);
+++ /dev/null
-/* $OpenBSD: i_skey.c,v 1.7 2023/07/08 10:44:00 beck Exp $ */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * 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:
- * 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 cryptographic software written by
- * 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
- * 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
- * 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 <openssl/crypto.h>
-#include <openssl/idea.h>
-#include "idea_local.h"
-
-static IDEA_INT inverse(unsigned int xin);
-void
-idea_set_encrypt_key(const unsigned char *key, IDEA_KEY_SCHEDULE *ks)
-{
- int i;
- IDEA_INT *kt, *kf, r0, r1, r2;
-
- kt = &(ks->data[0][0]);
- n2s(key, kt[0]);
- n2s(key, kt[1]);
- n2s(key, kt[2]);
- n2s(key, kt[3]);
- n2s(key, kt[4]);
- n2s(key, kt[5]);
- n2s(key, kt[6]);
- n2s(key, kt[7]);
-
- kf = kt;
- kt += 8;
- for (i = 0; i < 6; i++)
- {
- r2 = kf[1];
- r1 = kf[2];
- *(kt++) = ((r2 << 9) | (r1 >> 7)) & 0xffff;
- r0 = kf[3];
- *(kt++) = ((r1 << 9) | (r0 >> 7)) & 0xffff;
- r1 = kf[4];
- *(kt++) = ((r0 << 9) | (r1 >> 7)) & 0xffff;
- r0 = kf[5];
- *(kt++) = ((r1 << 9) | (r0 >> 7)) & 0xffff;
- r1 = kf[6];
- *(kt++) = ((r0 << 9) | (r1 >> 7)) & 0xffff;
- r0 = kf[7];
- *(kt++) = ((r1 << 9) | (r0 >> 7)) & 0xffff;
- r1 = kf[0];
- if (i >= 5)
- break;
- *(kt++) = ((r0 << 9) | (r1 >> 7)) & 0xffff;
- *(kt++) = ((r1 << 9) | (r2 >> 7)) & 0xffff;
- kf += 8;
- }
-}
-LCRYPTO_ALIAS(idea_set_encrypt_key);
-
-void
-idea_set_decrypt_key(IDEA_KEY_SCHEDULE *ek, IDEA_KEY_SCHEDULE *dk)
-{
- int r;
- IDEA_INT *fp, *tp, t;
-
- tp = &(dk->data[0][0]);
- fp = &(ek->data[8][0]);
- for (r = 0; r < 9; r++)
- {
- *(tp++) = inverse(fp[0]);
- *(tp++) = ((int)(0x10000L - fp[2]) & 0xffff);
- *(tp++) = ((int)(0x10000L - fp[1]) & 0xffff);
- *(tp++) = inverse(fp[3]);
- if (r == 8)
- break;
- fp -= 6;
- *(tp++) = fp[4];
- *(tp++) = fp[5];
- }
-
- tp = &(dk->data[0][0]);
- t = tp[1];
- tp[1] = tp[2];
- tp[2] = t;
-
- t = tp[49];
- tp[49] = tp[50];
- tp[50] = t;
-}
-LCRYPTO_ALIAS(idea_set_decrypt_key);
-
-/* taken directly from the 'paper' I'll have a look at it later */
-static IDEA_INT
-inverse(unsigned int xin)
-{
- long n1, n2, q, r, b1, b2, t;
-
- if (xin == 0)
- b2 = 0;
- else {
- n1 = 0x10001;
- n2 = xin;
- b2 = 1;
- b1 = 0;
-
- do {
- r = (n1 % n2);
- q = (n1 - r)/n2;
- if (r == 0) {
- if (b2 < 0)
- b2 = 0x10001 + b2;
- } else {
- n1 = n2;
- n2 = r;
- t = b2;
- b2 = b1 - q*b2;
- b1 = t;
- }
- } while (r != 0);
- }
- return ((IDEA_INT)b2);
-}
--- /dev/null
+/* $OpenBSD: idea.c,v 1.1 2024/03/29 05:23:50 jsing Exp $ */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * 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:
+ * 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 cryptographic software written by
+ * 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
+ * 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
+ * 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 <openssl/idea.h>
+#include "idea_local.h"
+
+void
+idea_cbc_encrypt(const unsigned char *in, unsigned char *out, long length,
+ IDEA_KEY_SCHEDULE *ks, unsigned char *iv, int encrypt)
+{
+ unsigned long tin0, tin1;
+ unsigned long tout0, tout1, xor0, xor1;
+ long l = length;
+ unsigned long tin[2];
+
+ if (encrypt) {
+ n2l(iv, tout0);
+ n2l(iv, tout1);
+ iv -= 8;
+ for (l -= 8; l >= 0; l -= 8)
+ {
+ n2l(in, tin0);
+ n2l(in, tin1);
+ tin0 ^= tout0;
+ tin1 ^= tout1;
+ tin[0] = tin0;
+ tin[1] = tin1;
+ idea_encrypt(tin, ks);
+ tout0 = tin[0];
+ l2n(tout0, out);
+ tout1 = tin[1];
+ l2n(tout1, out);
+ }
+ if (l != -8) {
+ n2ln(in, tin0, tin1, l + 8);
+ tin0 ^= tout0;
+ tin1 ^= tout1;
+ tin[0] = tin0;
+ tin[1] = tin1;
+ idea_encrypt(tin, ks);
+ tout0 = tin[0];
+ l2n(tout0, out);
+ tout1 = tin[1];
+ l2n(tout1, out);
+ }
+ l2n(tout0, iv);
+ l2n(tout1, iv);
+ } else {
+ n2l(iv, xor0);
+ n2l(iv, xor1);
+ iv -= 8;
+ for (l -= 8; l >= 0; l -= 8)
+ {
+ n2l(in, tin0);
+ tin[0] = tin0;
+ n2l(in, tin1);
+ tin[1] = tin1;
+ idea_encrypt(tin, ks);
+ tout0 = tin[0] ^ xor0;
+ tout1 = tin[1] ^ xor1;
+ l2n(tout0, out);
+ l2n(tout1, out);
+ xor0 = tin0;
+ xor1 = tin1;
+ }
+ if (l != -8) {
+ n2l(in, tin0);
+ tin[0] = tin0;
+ n2l(in, tin1);
+ tin[1] = tin1;
+ idea_encrypt(tin, ks);
+ tout0 = tin[0] ^ xor0;
+ tout1 = tin[1] ^ xor1;
+ l2nn(tout0, tout1, out, l + 8);
+ xor0 = tin0;
+ xor1 = tin1;
+ }
+ l2n(xor0, iv);
+ l2n(xor1, iv);
+ }
+ tin0 = tin1 = tout0 = tout1 = xor0 = xor1 = 0;
+ tin[0] = tin[1] = 0;
+}
+LCRYPTO_ALIAS(idea_cbc_encrypt);
+
+void
+idea_encrypt(unsigned long *d, IDEA_KEY_SCHEDULE *key)
+{
+ IDEA_INT *p;
+ unsigned long x1, x2, x3, x4, t0, t1, ul;
+
+ x2 = d[0];
+ x1 = (x2 >> 16);
+ x4 = d[1];
+ x3 = (x4 >> 16);
+
+ p = &(key->data[0][0]);
+
+ E_IDEA(0);
+ E_IDEA(1);
+ E_IDEA(2);
+ E_IDEA(3);
+ E_IDEA(4);
+ E_IDEA(5);
+ E_IDEA(6);
+ E_IDEA(7);
+
+ x1 &= 0xffff;
+ idea_mul(x1, x1, *p, ul);
+ p++;
+
+ t0 = x3 + *(p++);
+ t1 = x2 + *(p++);
+
+ x4 &= 0xffff;
+ idea_mul(x4, x4, *p, ul);
+
+ d[0] = (t0 & 0xffff)|((x1 & 0xffff) << 16);
+ d[1] = (x4 & 0xffff)|((t1 & 0xffff) << 16);
+}
+LCRYPTO_ALIAS(idea_encrypt);
+
+/* The input and output encrypted as though 64bit cfb mode is being
+ * used. The extra state information to record how much of the
+ * 64bit block we have used is contained in *num;
+ */
+
+void
+idea_cfb64_encrypt(const unsigned char *in, unsigned char *out,
+ long length, IDEA_KEY_SCHEDULE *schedule,
+ unsigned char *ivec, int *num, int encrypt)
+{
+ unsigned long v0, v1, t;
+ int n = *num;
+ long l = length;
+ unsigned long ti[2];
+ unsigned char *iv, c, cc;
+
+ iv = (unsigned char *)ivec;
+ if (encrypt) {
+ while (l--) {
+ if (n == 0) {
+ n2l(iv, v0);
+ ti[0] = v0;
+ n2l(iv, v1);
+ ti[1] = v1;
+ idea_encrypt((unsigned long *)ti, schedule);
+ iv = (unsigned char *)ivec;
+ t = ti[0];
+ l2n(t, iv);
+ t = ti[1];
+ l2n(t, iv);
+ iv = (unsigned char *)ivec;
+ }
+ c = *(in++) ^ iv[n];
+ *(out++) = c;
+ iv[n] = c;
+ n = (n + 1) & 0x07;
+ }
+ } else {
+ while (l--) {
+ if (n == 0) {
+ n2l(iv, v0);
+ ti[0] = v0;
+ n2l(iv, v1);
+ ti[1] = v1;
+ idea_encrypt((unsigned long *)ti, schedule);
+ iv = (unsigned char *)ivec;
+ t = ti[0];
+ l2n(t, iv);
+ t = ti[1];
+ l2n(t, iv);
+ iv = (unsigned char *)ivec;
+ }
+ cc = *(in++);
+ c = iv[n];
+ iv[n] = cc;
+ *(out++) = c ^ cc;
+ n = (n + 1) & 0x07;
+ }
+ }
+ v0 = v1 = ti[0] = ti[1] = t = c = cc = 0;
+ *num = n;
+}
+LCRYPTO_ALIAS(idea_cfb64_encrypt);
+
+void
+idea_ecb_encrypt(const unsigned char *in, unsigned char *out,
+ IDEA_KEY_SCHEDULE *ks)
+{
+ unsigned long l0, l1, d[2];
+
+ n2l(in, l0);
+ d[0] = l0;
+ n2l(in, l1);
+ d[1] = l1;
+ idea_encrypt(d, ks);
+ l0 = d[0];
+ l2n(l0, out);
+ l1 = d[1];
+ l2n(l1, out);
+ l0 = l1 = d[0] = d[1] = 0;
+}
+LCRYPTO_ALIAS(idea_ecb_encrypt);
+
+/*
+ * The input and output encrypted as though 64bit ofb mode is being
+ * used. The extra state information to record how much of the
+ * 64bit block we have used is contained in *num;
+ */
+void
+idea_ofb64_encrypt(const unsigned char *in, unsigned char *out,
+ long length, IDEA_KEY_SCHEDULE *schedule,
+ unsigned char *ivec, int *num)
+{
+ unsigned long v0, v1, t;
+ int n = *num;
+ long l = length;
+ unsigned char d[8];
+ char *dp;
+ unsigned long ti[2];
+ unsigned char *iv;
+ int save = 0;
+
+ iv = (unsigned char *)ivec;
+ n2l(iv, v0);
+ n2l(iv, v1);
+ ti[0] = v0;
+ ti[1] = v1;
+ dp = (char *)d;
+ l2n(v0, dp);
+ l2n(v1, dp);
+ while (l--) {
+ if (n == 0) {
+ idea_encrypt((unsigned long *)ti, schedule);
+ dp = (char *)d;
+ t = ti[0];
+ l2n(t, dp);
+ t = ti[1];
+ l2n(t, dp);
+ save++;
+ }
+ *(out++) = *(in++) ^ d[n];
+ n = (n + 1) & 0x07;
+ }
+ if (save) {
+ v0 = ti[0];
+ v1 = ti[1];
+ iv = (unsigned char *)ivec;
+ l2n(v0, iv);
+ l2n(v1, iv);
+ }
+ t = v0 = v1 = ti[0] = ti[1] = 0;
+ *num = n;
+}
+LCRYPTO_ALIAS(idea_ofb64_encrypt);
+
+/* taken directly from the 'paper' I'll have a look at it later */
+static IDEA_INT
+inverse(unsigned int xin)
+{
+ long n1, n2, q, r, b1, b2, t;
+
+ if (xin == 0)
+ b2 = 0;
+ else {
+ n1 = 0x10001;
+ n2 = xin;
+ b2 = 1;
+ b1 = 0;
+
+ do {
+ r = (n1 % n2);
+ q = (n1 - r)/n2;
+ if (r == 0) {
+ if (b2 < 0)
+ b2 = 0x10001 + b2;
+ } else {
+ n1 = n2;
+ n2 = r;
+ t = b2;
+ b2 = b1 - q*b2;
+ b1 = t;
+ }
+ } while (r != 0);
+ }
+ return ((IDEA_INT)b2);
+}
+
+void
+idea_set_encrypt_key(const unsigned char *key, IDEA_KEY_SCHEDULE *ks)
+{
+ int i;
+ IDEA_INT *kt, *kf, r0, r1, r2;
+
+ kt = &(ks->data[0][0]);
+ n2s(key, kt[0]);
+ n2s(key, kt[1]);
+ n2s(key, kt[2]);
+ n2s(key, kt[3]);
+ n2s(key, kt[4]);
+ n2s(key, kt[5]);
+ n2s(key, kt[6]);
+ n2s(key, kt[7]);
+
+ kf = kt;
+ kt += 8;
+ for (i = 0; i < 6; i++)
+ {
+ r2 = kf[1];
+ r1 = kf[2];
+ *(kt++) = ((r2 << 9) | (r1 >> 7)) & 0xffff;
+ r0 = kf[3];
+ *(kt++) = ((r1 << 9) | (r0 >> 7)) & 0xffff;
+ r1 = kf[4];
+ *(kt++) = ((r0 << 9) | (r1 >> 7)) & 0xffff;
+ r0 = kf[5];
+ *(kt++) = ((r1 << 9) | (r0 >> 7)) & 0xffff;
+ r1 = kf[6];
+ *(kt++) = ((r0 << 9) | (r1 >> 7)) & 0xffff;
+ r0 = kf[7];
+ *(kt++) = ((r1 << 9) | (r0 >> 7)) & 0xffff;
+ r1 = kf[0];
+ if (i >= 5)
+ break;
+ *(kt++) = ((r0 << 9) | (r1 >> 7)) & 0xffff;
+ *(kt++) = ((r1 << 9) | (r2 >> 7)) & 0xffff;
+ kf += 8;
+ }
+}
+LCRYPTO_ALIAS(idea_set_encrypt_key);
+
+void
+idea_set_decrypt_key(IDEA_KEY_SCHEDULE *ek, IDEA_KEY_SCHEDULE *dk)
+{
+ int r;
+ IDEA_INT *fp, *tp, t;
+
+ tp = &(dk->data[0][0]);
+ fp = &(ek->data[8][0]);
+ for (r = 0; r < 9; r++)
+ {
+ *(tp++) = inverse(fp[0]);
+ *(tp++) = ((int)(0x10000L - fp[2]) & 0xffff);
+ *(tp++) = ((int)(0x10000L - fp[1]) & 0xffff);
+ *(tp++) = inverse(fp[3]);
+ if (r == 8)
+ break;
+ fp -= 6;
+ *(tp++) = fp[4];
+ *(tp++) = fp[5];
+ }
+
+ tp = &(dk->data[0][0]);
+ t = tp[1];
+ tp[1] = tp[2];
+ tp[2] = t;
+
+ t = tp[49];
+ tp[49] = tp[50];
+ tp[50] = t;
+}
+LCRYPTO_ALIAS(idea_set_decrypt_key);
projects / openbsd / commitdiff