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[linuxjm/jm.git] / manual / LDP_man-pages / draft / man3 / key_setsecret.3

.\"  Copyright 2002 walter harms (walter.harms@informatik.uni-oldenburg.de)
.\"  Distributed under GPL
.\"  I had no way the check the functions out
.\"  be careful
.\"
.\" Japanese Version Copyright (c) 2003 Akihiro MOTOKI all rights reserved.
.\" Translated Mon Jan 27 2003 by Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>
.\"
.\"WORD:        authentication  ǧ¾Ú
.\"WORD:        asymmetric      ÈóÂоθ°(°Å¹æ)
.\"WORD:        symmetric       Âоθ°(°Å¹æ)
.\"
.TH KEY_SETSECRET 3 2002-07-18 "" "Linux Programmer's Manual"
.\"O .SH NAME
.SH ̾Á°
.\"O key_decryptsession, key_encryptsession, key_setsecret, key_gendes,
.\"O key_secretkey_is_set \- interfaces to rpc keyserver daemon
key_decryptsession, key_encryptsession, key_setsecret, key_gendes,
key_secretkey_is_set \- rpc ¸°¥µ¡¼¥Ð¡¦¥Ç¡¼¥â¥ó¤È¤Î¥¤¥ó¥¿¥Õ¥§¡¼¥¹
.\"O .SH SYNOPSIS
.SH ½ñ¼°
.B "#include <rpc/rpc.h>"
.sp
.BI "int key_decryptsession(const char *" remotename ,
.BI "des_block *" deskey );
.sp
.BI "int key_encryptsession(const char *" remotename ,
.BI "des_block *" deskey );
.sp
.BI "int key_gendes(des_block *" deskey );
.sp
.BI "int key_setsecret(const char *" key );
.sp
.B "int key_secretkey_is_set(void);"
.\"O .SH DESCRIPTION
.SH ÀâÌÀ
.\"O The functions here are used within the RPC's secure authentication
.\"O mechanism (AUTH_DES).
.\"O There should be no need for user programs to
.\"O use this functions.
¤³¤ì¤é¤Î´Ø¿ô¤Ï RPC ¤Î°ÂÁ´¤Êǧ¾Úµ¡¹½ (AUTH_DES) ¤Ç»ÈÍѤµ¤ì¤ë¡£
¥æ¡¼¥¶¡¦¥×¥í¥°¥é¥à¤Ç¤³¤ì¤é¤Î´Ø¿ô¤ò»ÈÍѤ¹¤ëɬÍפϤʤ¤¡£

.\"O The function
.\"O .BR key_decryptsession ()
.\"O uses the (remote) server netname and takes the DES key
.\"O for decrypting.
.\"O It uses the public key of the server and the
.\"O secret key associated with the effective UID of the calling process.
´Ø¿ô
.BR key_decryptsession ()
¤Ï(¥ê¥â¡¼¥È)¥µ¡¼¥Ð¤Î¥Í¥Ã¥È̾¤òÍѤ¤¤Æ¡¢Éü¹æÍѤΠDES ¸°¤ò¼èÆÀ¤¹¤ë¡£
¥µ¡¼¥Ð¤Î¸ø³«¸°¤È¡¢¸Æ¤Ó½Ð¤·¸µ¥×¥í¥»¥¹¤Î¼Â¸ú UID ¤ËÂбþ¤¹¤ëÈëÌ©¸°¤¬»ÈÍѤµ¤ì¤ë¡£

.\"O The function
.\"O .BR key_encryptsession ()
.\"O is the inverse of
.\"O .BR key_decryptsession ().
.\"O It encrypts the DES keys with the public key of the server and
.\"O the secret key associated with the effective UID of the calling process.
´Ø¿ô
.BR key_encryptsession ()
¤Ï
.BR key_decryptsession ()
¤ÎµÕ¤Î½èÍý¤ò¹Ô¤¦¡£
¥µ¡¼¥Ð¤Î¸ø³«¸°¤È¡¢¸Æ¤Ó½Ð¤·¸µ¥×¥í¥»¥¹¤Î¼Â¸ú UID ¤ËÂбþ¤¹¤ëÈëÌ©¸°¤Ç
DES ¸°¤ò°Å¹æ¤¹¤ë¡£

.\"O The function
.\"O .BR key_gendes ()
.\"O is used to ask the keyserver for a secure conversation key.
´Ø¿ô
.BR key_gendes ()
¤Ï¡¢¸°¥µ¡¼¥Ð¤Ë°ÂÁ´¤ÊÄÌ¿®¤ò¹Ô¤¦¤¿¤á¤Î¸°¤òÍ׵᤹¤ë¤¿¤á¤Ë»ÈÍѤµ¤ì¤ë¡£

.\"O The function
.\"O .BR key_setsecret ()
.\"O is used to set the key for the effective UID of the calling process.
´Ø¿ô
.BR key_setsecret ()
¤Ï¡¢¸Æ¤Ó½Ð¤·¸µ¥×¥í¥»¥¹¤Î¼Â¸ú UID ¤ËÂФ·¤Æ¸°¤òÀßÄꤹ¤ë¤¿¤á¤Ë»ÈÍѤµ¤ì¤ë¡£

.\"O The function
.\"O .BR key_secretkey_is_set ()
.\"O can be used to determine whether a key has been
.\"O set for the effective UID of the calling process.
´Ø¿ô
.BR key_secretkey_is_set ()
¤Ï¡¢¸Æ¤Ó½Ð¤·¸µ¥×¥í¥»¥¹¤Î¼Â¸ú UID ¤ËÂФ·¤Æ¸°¤¬ÀßÄꤵ¤ì¤Æ¤¤¤ë¤«¤É¤¦¤«¤ò
Ä´¤Ù¤ë¤¿¤á¤Ë»ÈÍѤµ¤ì¤ë¡£
.\"O .SH "RETURN VALUE"
.SH ÊÖ¤êÃÍ
.\"O These functions return 1 on success and 0 on failure.
¤³¤ì¤é¤Î´Ø¿ô¤ÏÀ®¸ù¤·¤¿¾ì¹ç 1 ¤ò¡¢¼ºÇÔ¤·¤¿¾ì¹ç 0 ¤òÊÖ¤¹¡£
.\"O .SH NOTES
.SH Ãí°Õ
.\"O Note that we talk about two types of encryption here.
.\"O One is asymmetric using a public and secret key.
.\"O The other is symmetric, the
.\"O 64-bit DES.
¤³¤³¤Ç¤Ï 2 ¼ïÎà¤Î°Å¹æÊý¼°¤¬Åо줹¤ë¤³¤È¤ËÃí°Õ¤¹¤ë¤³¤È¡£
°ì¤Ä¤Ï¸ø³«¸°¤ÈÈëÌ©¸°¤ò»ÈÍѤ¹¤ëÈóÂоθ°°Å¹æ¤Ç¤¢¤ê¡¢
¤â¤¦°ì¤Ä¤ÏÂоθ°°Å¹æ¤Ç¤¢¤ë 64 ¥Ó¥Ã¥È DES ¤Ç¤¢¤ë¡£
.PP
.\"O These routines were part of the Linux/Doors-project, abandoned by now.
¤³¤ì¤é¤Î´Ø¿ô¤Ï Linux/Doors-project ¤ÎÀ®²Ì¤Î°ìÉô¤À¤Ã¤¿¤¬¡¢
¸½ºß¤Þ¤Ç¤Ë³ºÅö²Õ½ê¤Ï¤¹¤Ù¤ÆÇË´þ¤µ¤ì¤¿¡£
.\"O .SH "SEE ALSO"
.SH ´ØÏ¢¹àÌÜ
.BR crypt (3)