2 .\" Sun Microsystems, Inc. gratefully acknowledges The Open Group for
3 .\" permission to reproduce portions of its copyrighted documentation.
4 .\" Original documentation from The Open Group can be obtained online at
5 .\" http://www.opengroup.org/bookstore/.
7 .\" The Institute of Electrical and Electronics Engineers and The Open
8 .\" Group, have given us permission to reprint portions of their
11 .\" In the following statement, the phrase ``this text'' refers to portions
12 .\" of the system documentation.
14 .\" Portions of this text are reprinted and reproduced in electronic form
15 .\" in the SunOS Reference Manual, from IEEE Std 1003.1, 2004 Edition,
16 .\" Standard for Information Technology -- Portable Operating System
17 .\" Interface (POSIX), The Open Group Base Specifications Issue 6,
18 .\" Copyright (C) 2001-2004 by the Institute of Electrical and Electronics
19 .\" Engineers, Inc and The Open Group. In the event of any discrepancy
20 .\" between these versions and the original IEEE and The Open Group
21 .\" Standard, the original IEEE and The Open Group Standard is the referee
22 .\" document. The original Standard can be obtained online at
23 .\" http://www.opengroup.org/unix/online.html.
25 .\" This notice shall appear on any product containing this material.
27 .\" The contents of this file are subject to the terms of the
28 .\" Common Development and Distribution License (the "License").
29 .\" You may not use this file except in compliance with the License.
31 .\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
32 .\" or http://www.opensolaris.org/os/licensing.
33 .\" See the License for the specific language governing permissions
34 .\" and limitations under the License.
36 .\" When distributing Covered Code, include this CDDL HEADER in each
37 .\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
38 .\" If applicable, add the following below this CDDL HEADER, with the
39 .\" fields enclosed by brackets "[]" replaced with your own identifying
40 .\" information: Portions Copyright [yyyy] [name of copyright owner]
43 .\" Copyright (c) 1992, X/Open Company Limited. All Rights Reserved.
44 .\" Portions Copyright (c) 2002, Sun Microsystems, Inc. All Rights Reserved.
46 .TH SETKEY 3C "Aug 14, 2002"
48 setkey \- set encoding key
54 \fBvoid\fR \fBsetkey\fR(\fBconst char *\fR\fIkey\fR);
60 The \fBsetkey()\fR function provides (rather primitive) access to the hashing
61 algorithm employed by the \fBcrypt\fR(3C) function. The argument of
62 \fBsetkey()\fR is an array of length 64 bytes containing only the bytes with
63 numerical value of 0 and 1. If this string is divided into groups of 8, the
64 low-order bit in each group is ignored; this gives a 56-bit key which is used
65 by the algorithm. This is the key that will be used with the algorithm to
66 encode a string \fIblock\fR passed to \fBencrypt\fR(3C).
70 No values are returned.
74 The \fBsetkey()\fR function will fail if:
81 The functionality is not supported on this implementation.
87 In some environments, decoding may not be implemented. This is related to U.S.
88 Government restrictions on encryption and decryption routines: the \fBDES\fR
89 decryption algorithm cannot be exported outside the U.S.A. Historical practice
90 has been to ship a different version of the encryption library without the
91 decryption feature in the routines supplied. Thus the exported version of
92 \fBencrypt()\fR does encoding but not decoding.
95 Because \fBsetkey()\fR does not return a value, applications wishing to check
96 for errors should set \fBerrno\fR to 0, call \fBsetkey()\fR, then test
97 \fBerrno\fR and, if it is non-zero, assume an error has occurred.
101 See \fBattributes\fR(5) for descriptions of the following attributes:
109 ATTRIBUTE TYPE ATTRIBUTE VALUE
111 Interface Stability Standard
119 \fBcrypt\fR(3C), \fBencrypt\fR(3C), \fBattributes\fR(5), \fBstandards\fR(5)