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Diffstat (limited to 'REORG.TODO/sunrpc/xcrypt.c')
| -rw-r--r-- | REORG.TODO/sunrpc/xcrypt.c | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/REORG.TODO/sunrpc/xcrypt.c b/REORG.TODO/sunrpc/xcrypt.c new file mode 100644 index 0000000000..da7c4e66b9 --- /dev/null +++ b/REORG.TODO/sunrpc/xcrypt.c @@ -0,0 +1,215 @@ +/* + * Copyright (c) 2010, Oracle America, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * 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. + * * Neither the name of the "Oracle America, Inc." nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "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 + * COPYRIGHT HOLDER 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. + */ + +#if 0 +#ident "@(#)xcrypt.c 1.11 94/08/23 SMI" +#endif + +#if !defined(lint) && defined(SCCSIDS) +static char sccsid[] = "@(#)xcrypt.c 1.3 89/03/24 Copyr 1986 Sun Micro"; +#endif + +/* + * xcrypt.c: Hex encryption/decryption and utility routines + */ + +#include <ctype.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/types.h> +#include <rpc/des_crypt.h> +#include <shlib-compat.h> + +static const char hex[16] = +{ + '0', '1', '2', '3', '4', '5', '6', '7', + '8', '9', 'a', 'b', 'c', 'd', 'e', 'f', +}; + + +#ifdef _LIBC +# define hexval(c) \ + (c >= '0' && c <= '9' \ + ? c - '0' \ + : ({ int upp = toupper (c); \ + upp >= 'A' && upp <= 'Z' ? upp - 'A' + 10 : -1; })) +#else +static char hexval (char) internal_function; +#endif + +static void hex2bin (int, char *, char *) internal_function; +static void bin2hex (int, unsigned char *, char *) internal_function; +void passwd2des_internal (char *pw, char *key); +#ifdef _LIBC +libc_hidden_proto (passwd2des_internal) +#endif + +/* + * Turn password into DES key + */ +void +passwd2des_internal (char *pw, char *key) +{ + int i; + + memset (key, 0, 8); + for (i = 0; *pw && i < 8; ++i) + key[i] ^= *pw++ << 1; + + des_setparity (key); +} + +#ifdef _LIBC +libc_hidden_def (passwd2des_internal) +libc_sunrpc_symbol(passwd2des_internal, passwd2des, GLIBC_2_1) +#else +void passwd2des (char *pw, char *key) +{ + return passwd2des_internal (pw, key); +} +#endif + +/* + * Encrypt a secret key given passwd + * The secret key is passed and returned in hex notation. + * Its length must be a multiple of 16 hex digits (64 bits). + */ +int +xencrypt (char *secret, char *passwd) +{ + char key[8]; + char ivec[8]; + char *buf; + int err; + int len; + + len = strlen (secret) / 2; + buf = malloc ((unsigned) len); + hex2bin (len, secret, buf); + passwd2des_internal (passwd, key); + memset (ivec, 0, 8); + + err = cbc_crypt (key, buf, len, DES_ENCRYPT | DES_HW, ivec); + if (DES_FAILED (err)) + { + free (buf); + return 0; + } + bin2hex (len, (unsigned char *) buf, secret); + free (buf); + return 1; +} +libc_hidden_nolink_sunrpc (xencrypt, GLIBC_2_0) + +/* + * Decrypt secret key using passwd + * The secret key is passed and returned in hex notation. + * Once again, the length is a multiple of 16 hex digits + */ +int +xdecrypt (char *secret, char *passwd) +{ + char key[8]; + char ivec[8]; + char *buf; + int err; + int len; + + len = strlen (secret) / 2; + buf = malloc ((unsigned) len); + + hex2bin (len, secret, buf); + passwd2des_internal (passwd, key); + memset (ivec, 0, 8); + + err = cbc_crypt (key, buf, len, DES_DECRYPT | DES_HW, ivec); + if (DES_FAILED (err)) + { + free (buf); + return 0; + } + bin2hex (len, (unsigned char *) buf, secret); + free (buf); + return 1; +} +#ifdef EXPORT_RPC_SYMBOLS +libc_hidden_def (xdecrypt) +#else +libc_hidden_nolink_sunrpc (xdecrypt, GLIBC_2_1) +#endif + +/* + * Hex to binary conversion + */ +static void +internal_function +hex2bin (int len, char *hexnum, char *binnum) +{ + int i; + + for (i = 0; i < len; i++) + *binnum++ = 16 * hexval (hexnum[2 * i]) + hexval (hexnum[2 * i + 1]); +} + +/* + * Binary to hex conversion + */ +static void +internal_function +bin2hex (int len, unsigned char *binnum, char *hexnum) +{ + int i; + unsigned val; + + for (i = 0; i < len; i++) + { + val = binnum[i]; + hexnum[i * 2] = hex[val >> 4]; + hexnum[i * 2 + 1] = hex[val & 0xf]; + } + hexnum[len * 2] = 0; +} + +#ifndef _LIBC +static char +hexval (char c) +{ + if (c >= '0' && c <= '9') + return (c - '0'); + else if (c >= 'a' && c <= 'z') + return (c - 'a' + 10); + else if (c >= 'A' && c <= 'Z') + return (c - 'A' + 10); + else + return -1; +} +#endif |