diff options
Diffstat (limited to 'REORG.TODO/sunrpc/des_crypt.c')
| -rw-r--r-- | REORG.TODO/sunrpc/des_crypt.c | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/REORG.TODO/sunrpc/des_crypt.c b/REORG.TODO/sunrpc/des_crypt.c new file mode 100644 index 0000000000..a4d8b2936b --- /dev/null +++ b/REORG.TODO/sunrpc/des_crypt.c @@ -0,0 +1,118 @@ +/* + * des_crypt.c, DES encryption library routines + * 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. + */ + +#include <sys/types.h> +#include <rpc/des_crypt.h> +#include <shlib-compat.h> +#include "des.h" + +extern int _des_crypt (char *, unsigned, struct desparams *); + +/* + * Copy 8 bytes + */ +#define COPY8(src, dst) { \ + register char *a = (char *) dst; \ + register char *b = (char *) src; \ + *a++ = *b++; *a++ = *b++; *a++ = *b++; *a++ = *b++; \ + *a++ = *b++; *a++ = *b++; *a++ = *b++; *a++ = *b++; \ +} + +/* + * Copy multiple of 8 bytes + */ +#define DESCOPY(src, dst, len) { \ + register char *a = (char *) dst; \ + register char *b = (char *) src; \ + register int i; \ + for (i = (int) len; i > 0; i -= 8) { \ + *a++ = *b++; *a++ = *b++; *a++ = *b++; *a++ = *b++; \ + *a++ = *b++; *a++ = *b++; *a++ = *b++; *a++ = *b++; \ + } \ +} + +/* + * Common code to cbc_crypt() & ecb_crypt() + */ +static int +common_crypt (char *key, char *buf, register unsigned len, + unsigned mode, register struct desparams *desp) +{ + register int desdev; + + if ((len % 8) != 0 || len > DES_MAXDATA) + return DESERR_BADPARAM; + + desp->des_dir = + ((mode & DES_DIRMASK) == DES_ENCRYPT) ? ENCRYPT : DECRYPT; + + desdev = mode & DES_DEVMASK; + COPY8 (key, desp->des_key); + /* + * software + */ + if (!_des_crypt (buf, len, desp)) + return DESERR_HWERROR; + + return desdev == DES_SW ? DESERR_NONE : DESERR_NOHWDEVICE; +} + +/* + * CBC mode encryption + */ +int +cbc_crypt (char *key, char *buf, unsigned int len, unsigned int mode, + char *ivec) +{ + int err; + struct desparams dp; + + dp.des_mode = CBC; + COPY8 (ivec, dp.des_ivec); + err = common_crypt (key, buf, len, mode, &dp); + COPY8 (dp.des_ivec, ivec); + return err; +} +libc_hidden_nolink_sunrpc (cbc_crypt, GLIBC_2_1) + +/* + * ECB mode encryption + */ +int +ecb_crypt (char *key, char *buf, unsigned int len, unsigned int mode) +{ + struct desparams dp; + + dp.des_mode = ECB; + return common_crypt (key, buf, len, mode, &dp); +} +libc_hidden_nolink_sunrpc (ecb_crypt, GLIBC_2_1) |