Tera TermRevision: 10528
https://osdn.net/projects/ttssh2/scm/svn/commits/10528
Author: zmatsuo
Date: 2023-01-22 02:41:45 +0900 (Sun, 22 Jan 2023)
Log Message:
-----------
改行コードをCR+LFに変更
- LF->CRLF
Modified Paths:
--------------
trunk/ttssh2/ttxssh/cipher-3des1.c
-------------- next part --------------
Modified: trunk/ttssh2/ttxssh/cipher-3des1.c
===================================================================
--- trunk/ttssh2/ttxssh/cipher-3des1.c 2023-01-21 11:46:26 UTC (rev 10527)
+++ trunk/ttssh2/ttxssh/cipher-3des1.c 2023-01-21 17:41:45 UTC (rev 10528)
@@ -1,157 +1,157 @@
-/* Imported from OpenSSH-7.5p1, TeraTerm Project */
-
-/* $OpenBSD: cipher-3des1.c,v 1.12 2015/01/14 10:24:42 markus Exp $ */
-/*
- * Copyright (c) 2003 Markus Friedl. All rights reserved.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
- */
-
-// #include "includes.h"
-
-#include <sys/types.h>
-#include <string.h>
-#include <openssl/evp.h>
-#include <windows.h>
-
-typedef unsigned int u_int;
-typedef unsigned char u_char;
-
-#include "ssherr.h"
-
-/*
- * This is used by SSH1:
- *
- * What kind of triple DES are these 2 routines?
- *
- * Why is there a redundant initialization vector?
- *
- * If only iv3 was used, then, this would till effect have been
- * outer-cbc. However, there is also a private iv1 == iv2 which
- * perhaps makes differential analysis easier. On the other hand, the
- * private iv1 probably makes the CRC-32 attack ineffective. This is a
- * result of that there is no longer any known iv1 to use when
- * choosing the X block.
- */
-struct ssh1_3des_ctx
-{
- EVP_CIPHER_CTX *k1, *k2, *k3;
-};
-
-const EVP_CIPHER * evp_ssh1_3des(void);
-
-static int ssh1_3des_init(EVP_CIPHER_CTX *ctx, const u_char *key, const u_char *iv, int enc)
-{
- struct ssh1_3des_ctx *c;
- u_char *k1, *k2, *k3;
-
- if ((c = EVP_CIPHER_CTX_get_app_data(ctx)) == NULL) {
- if ((c = calloc(1, sizeof(*c))) == NULL)
- return 0;
- EVP_CIPHER_CTX_set_app_data(ctx, c);
- }
- if (key == NULL)
- return 1;
- if (enc == -1)
- enc = EVP_CIPHER_CTX_encrypting(ctx); // ctx->encrypt
- k1 = k2 = k3 = (u_char *) key;
- k2 += 8;
- if (EVP_CIPHER_CTX_key_length(ctx) >= 16+8) {
- if (enc)
- k3 += 16;
- else
- k1 += 16;
- }
- c->k1 = EVP_CIPHER_CTX_new();
- c->k2 = EVP_CIPHER_CTX_new();
- c->k3 = EVP_CIPHER_CTX_new();
- /*** TODO: OPENSSL1.1.1 ERROR CHECK(ticket#39335\x82ŏ\x88\x92u\x97\\x92\xE8) ***/
- if (EVP_CipherInit(c->k1, EVP_des_cbc(), k1, NULL, enc) == 0 ||
- EVP_CipherInit(c->k2, EVP_des_cbc(), k2, NULL, !enc) == 0 ||
- EVP_CipherInit(c->k3, EVP_des_cbc(), k3, NULL, enc) == 0) {
- EVP_CIPHER_CTX_free(c->k1);
- EVP_CIPHER_CTX_free(c->k2);
- EVP_CIPHER_CTX_free(c->k3);
- SecureZeroMemory(c, sizeof(*c));
- free(c);
- EVP_CIPHER_CTX_set_app_data(ctx, NULL);
- return 0;
- }
- return 1;
-}
-
-static int ssh1_3des_cbc(EVP_CIPHER_CTX *ctx, u_char *dest, const u_char *src, size_t len)
-{
- struct ssh1_3des_ctx *c;
-
- if ((c = EVP_CIPHER_CTX_get_app_data(ctx)) == NULL) {
- //error("ssh1_3des_cbc: no context");
- return 0;
- }
- if (EVP_Cipher(c->k1, dest, (u_char *)src, len) == 0 ||
- EVP_Cipher(c->k2, dest, dest, len) == 0 ||
- EVP_Cipher(c->k3, dest, dest, len) == 0)
- return 0;
- return 1;
-}
-
-static int ssh1_3des_cleanup(EVP_CIPHER_CTX *ctx)
-{
- struct ssh1_3des_ctx *c;
-
- if ((c = EVP_CIPHER_CTX_get_app_data(ctx)) != NULL) {
- EVP_CIPHER_CTX_free(c->k1);
- EVP_CIPHER_CTX_free(c->k2);
- EVP_CIPHER_CTX_free(c->k3);
- SecureZeroMemory(c, sizeof(*c));
- free(c);
- EVP_CIPHER_CTX_set_app_data(ctx, NULL);
- }
- return 1;
-}
-
-const EVP_CIPHER *evp_ssh1_3des(void)
-{
-#ifndef LIBRESSL_VERSION_NUMBER
- static EVP_CIPHER *p = NULL;
-
- if (p == NULL) {
- p = EVP_CIPHER_meth_new(NID_undef, /*block_size*/8, /*key_len*/16);
- /*** TODO: OPENSSL1.1.1 ERROR CHECK(ticket#39335\x82ŏ\x88\x92u\x97\\x92\xE8) ***/
- }
- if (p) {
- EVP_CIPHER_meth_set_iv_length(p, 0);
- EVP_CIPHER_meth_set_init(p, ssh1_3des_init);
- EVP_CIPHER_meth_set_cleanup(p, ssh1_3des_cleanup);
- EVP_CIPHER_meth_set_do_cipher(p, ssh1_3des_cbc);
- EVP_CIPHER_meth_set_flags(p, EVP_CIPH_CBC_MODE | EVP_CIPH_VARIABLE_LENGTH);
- }
- return (p);
-#else
- static EVP_CIPHER ssh1_3des;
-
- memset(&ssh1_3des, 0, sizeof(EVP_CIPHER));
- ssh1_3des.nid = NID_undef;
- ssh1_3des.block_size = 8;
- ssh1_3des.iv_len = 0;
- ssh1_3des.key_len = 16;
- ssh1_3des.init = ssh1_3des_init;
- ssh1_3des.cleanup = ssh1_3des_cleanup;
- ssh1_3des.do_cipher = ssh1_3des_cbc;
- ssh1_3des.flags = EVP_CIPH_CBC_MODE | EVP_CIPH_VARIABLE_LENGTH;
- return (&ssh1_3des);
-#endif
-}
+/* Imported from OpenSSH-7.5p1, TeraTerm Project */
+
+/* $OpenBSD: cipher-3des1.c,v 1.12 2015/01/14 10:24:42 markus Exp $ */
+/*
+ * Copyright (c) 2003 Markus Friedl. All rights reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
+ */
+
+// #include "includes.h"
+
+#include <sys/types.h>
+#include <string.h>
+#include <openssl/evp.h>
+#include <windows.h>
+
+typedef unsigned int u_int;
+typedef unsigned char u_char;
+
+#include "ssherr.h"
+
+/*
+ * This is used by SSH1:
+ *
+ * What kind of triple DES are these 2 routines?
+ *
+ * Why is there a redundant initialization vector?
+ *
+ * If only iv3 was used, then, this would till effect have been
+ * outer-cbc. However, there is also a private iv1 == iv2 which
+ * perhaps makes differential analysis easier. On the other hand, the
+ * private iv1 probably makes the CRC-32 attack ineffective. This is a
+ * result of that there is no longer any known iv1 to use when
+ * choosing the X block.
+ */
+struct ssh1_3des_ctx
+{
+ EVP_CIPHER_CTX *k1, *k2, *k3;
+};
+
+const EVP_CIPHER * evp_ssh1_3des(void);
+
+static int ssh1_3des_init(EVP_CIPHER_CTX *ctx, const u_char *key, const u_char *iv, int enc)
+{
+ struct ssh1_3des_ctx *c;
+ u_char *k1, *k2, *k3;
+
+ if ((c = EVP_CIPHER_CTX_get_app_data(ctx)) == NULL) {
+ if ((c = calloc(1, sizeof(*c))) == NULL)
+ return 0;
+ EVP_CIPHER_CTX_set_app_data(ctx, c);
+ }
+ if (key == NULL)
+ return 1;
+ if (enc == -1)
+ enc = EVP_CIPHER_CTX_encrypting(ctx); // ctx->encrypt
+ k1 = k2 = k3 = (u_char *) key;
+ k2 += 8;
+ if (EVP_CIPHER_CTX_key_length(ctx) >= 16+8) {
+ if (enc)
+ k3 += 16;
+ else
+ k1 += 16;
+ }
+ c->k1 = EVP_CIPHER_CTX_new();
+ c->k2 = EVP_CIPHER_CTX_new();
+ c->k3 = EVP_CIPHER_CTX_new();
+ /*** TODO: OPENSSL1.1.1 ERROR CHECK(ticket#39335\x82ŏ\x88\x92u\x97\\x92\xE8) ***/
+ if (EVP_CipherInit(c->k1, EVP_des_cbc(), k1, NULL, enc) == 0 ||
+ EVP_CipherInit(c->k2, EVP_des_cbc(), k2, NULL, !enc) == 0 ||
+ EVP_CipherInit(c->k3, EVP_des_cbc(), k3, NULL, enc) == 0) {
+ EVP_CIPHER_CTX_free(c->k1);
+ EVP_CIPHER_CTX_free(c->k2);
+ EVP_CIPHER_CTX_free(c->k3);
+ SecureZeroMemory(c, sizeof(*c));
+ free(c);
+ EVP_CIPHER_CTX_set_app_data(ctx, NULL);
+ return 0;
+ }
+ return 1;
+}
+
+static int ssh1_3des_cbc(EVP_CIPHER_CTX *ctx, u_char *dest, const u_char *src, size_t len)
+{
+ struct ssh1_3des_ctx *c;
+
+ if ((c = EVP_CIPHER_CTX_get_app_data(ctx)) == NULL) {
+ //error("ssh1_3des_cbc: no context");
+ return 0;
+ }
+ if (EVP_Cipher(c->k1, dest, (u_char *)src, len) == 0 ||
+ EVP_Cipher(c->k2, dest, dest, len) == 0 ||
+ EVP_Cipher(c->k3, dest, dest, len) == 0)
+ return 0;
+ return 1;
+}
+
+static int ssh1_3des_cleanup(EVP_CIPHER_CTX *ctx)
+{
+ struct ssh1_3des_ctx *c;
+
+ if ((c = EVP_CIPHER_CTX_get_app_data(ctx)) != NULL) {
+ EVP_CIPHER_CTX_free(c->k1);
+ EVP_CIPHER_CTX_free(c->k2);
+ EVP_CIPHER_CTX_free(c->k3);
+ SecureZeroMemory(c, sizeof(*c));
+ free(c);
+ EVP_CIPHER_CTX_set_app_data(ctx, NULL);
+ }
+ return 1;
+}
+
+const EVP_CIPHER *evp_ssh1_3des(void)
+{
+#ifndef LIBRESSL_VERSION_NUMBER
+ static EVP_CIPHER *p = NULL;
+
+ if (p == NULL) {
+ p = EVP_CIPHER_meth_new(NID_undef, /*block_size*/8, /*key_len*/16);
+ /*** TODO: OPENSSL1.1.1 ERROR CHECK(ticket#39335\x82ŏ\x88\x92u\x97\\x92\xE8) ***/
+ }
+ if (p) {
+ EVP_CIPHER_meth_set_iv_length(p, 0);
+ EVP_CIPHER_meth_set_init(p, ssh1_3des_init);
+ EVP_CIPHER_meth_set_cleanup(p, ssh1_3des_cleanup);
+ EVP_CIPHER_meth_set_do_cipher(p, ssh1_3des_cbc);
+ EVP_CIPHER_meth_set_flags(p, EVP_CIPH_CBC_MODE | EVP_CIPH_VARIABLE_LENGTH);
+ }
+ return (p);
+#else
+ static EVP_CIPHER ssh1_3des;
+
+ memset(&ssh1_3des, 0, sizeof(EVP_CIPHER));
+ ssh1_3des.nid = NID_undef;
+ ssh1_3des.block_size = 8;
+ ssh1_3des.iv_len = 0;
+ ssh1_3des.key_len = 16;
+ ssh1_3des.init = ssh1_3des_init;
+ ssh1_3des.cleanup = ssh1_3des_cleanup;
+ ssh1_3des.do_cipher = ssh1_3des_cbc;
+ ssh1_3des.flags = EVP_CIPH_CBC_MODE | EVP_CIPH_VARIABLE_LENGTH;
+ return (&ssh1_3des);
+#endif
+}