1.\" @(#)des_crypt.3 2.1 88/08/11 4.0 RPCSRC; from 1.16 88/03/02 SMI;
| 1.\" @(#)des_crypt.3 2.1 88/08/11 4.0 RPCSRC; from 1.16 88/03/02 SMI;
|
2.\" $FreeBSD: head/lib/libc/rpc/des_crypt.3 84306 2001-10-01 16:09:29Z ru $
| 2.\" $FreeBSD: head/lib/libc/rpc/des_crypt.3 108037 2002-12-18 12:45:11Z ru $
|
3.\"
4.Dd October 6, 1987
5.Dt DES_CRYPT 3
6.Os
7.Sh NAME
8.Nm des_crypt , ecb_crypt , cbc_crypt , des_setparity
9.Nd "fast DES encryption"
10.Sh LIBRARY
11.Lb libc
12.Sh SYNOPSIS
13.In rpc/des_crypt.h
14.Ft int
15.Fn ecb_crypt "char *key" "char *data" "unsigned datalen" "unsigned mode"
16.Ft int
17.Fn cbc_crypt "char *key" "char *data" "unsigned datalen" "unsigned mode" "char *ivec"
18.Ft void
19.Fn des_setparity "char *key"
20.Sh DESCRIPTION
| 3.\"
4.Dd October 6, 1987
5.Dt DES_CRYPT 3
6.Os
7.Sh NAME
8.Nm des_crypt , ecb_crypt , cbc_crypt , des_setparity
9.Nd "fast DES encryption"
10.Sh LIBRARY
11.Lb libc
12.Sh SYNOPSIS
13.In rpc/des_crypt.h
14.Ft int
15.Fn ecb_crypt "char *key" "char *data" "unsigned datalen" "unsigned mode"
16.Ft int
17.Fn cbc_crypt "char *key" "char *data" "unsigned datalen" "unsigned mode" "char *ivec"
18.Ft void
19.Fn des_setparity "char *key"
20.Sh DESCRIPTION
|
| 21The
|
21.Fn ecb_crypt
22and
23.Fn cbc_crypt
| 22.Fn ecb_crypt
23and
24.Fn cbc_crypt
|
| 25functions
|
24implement the
25.Tn NBS
26.Tn DES
27(Data Encryption Standard).
28These routines are faster and more general purpose than
29.Xr crypt 3 .
30They also are able to utilize
31.Tn DES
32hardware if it is available.
| 26implement the
27.Tn NBS
28.Tn DES
29(Data Encryption Standard).
30These routines are faster and more general purpose than
31.Xr crypt 3 .
32They also are able to utilize
33.Tn DES
34hardware if it is available.
|
| 35The
|
33.Fn ecb_crypt
| 36.Fn ecb_crypt
|
| 37function
|
34encrypts in
35.Tn ECB
36(Electronic Code Book)
37mode, which encrypts blocks of data independently.
| 38encrypts in
39.Tn ECB
40(Electronic Code Book)
41mode, which encrypts blocks of data independently.
|
| 42The
|
38.Fn cbc_crypt
| 43.Fn cbc_crypt
|
| 44function
|
39encrypts in
40.Tn CBC
41(Cipher Block Chaining)
42mode, which chains together
43successive blocks.
44.Tn CBC
45mode protects against insertions, deletions and
46substitutions of blocks.
--- 77 unchanged lines hidden --- | 45encrypts in
46.Tn CBC
47(Cipher Block Chaining)
48mode, which chains together
49successive blocks.
50.Tn CBC
51mode protects against insertions, deletions and
52substitutions of blocks.
--- 77 unchanged lines hidden --- |