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| author | Michael Kerrisk <mtk.manpages@gmail.com> | 2004-11-03 13:51:07 +0000 |
|---|---|---|
| committer | Michael Kerrisk <mtk.manpages@gmail.com> | 2004-11-03 13:51:07 +0000 |
| commit | fea681dafb1363a154b7fc6d59baa83d2a9ebc5c (patch) | |
| tree | 8ea275c0f242af739617d0afc3e1b16c4eff3dc2 /man3/xcrypt.3 | |
| download | man-pages-fea681dafb1363a154b7fc6d59baa83d2a9ebc5c.tar.gz | |
Import of man-pages 1.70man-pages-1.70
Diffstat (limited to 'man3/xcrypt.3')
| -rw-r--r-- | man3/xcrypt.3 | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/man3/xcrypt.3 b/man3/xcrypt.3 new file mode 100644 index 0000000000..ae0efada1b --- /dev/null +++ b/man3/xcrypt.3 @@ -0,0 +1,69 @@ +.\" Copyright 2003 walter harms (walter.harms@informatik.uni-oldenburg.de) +.\" Distributed under GPL +.\" this is the 3rd type of interface for cryptographic routines +.\" 1. encrypt() expects a bitfield +.\" 2. cbc_crypt() byte values +.\" 3. xencrypt() a hexstring +.\" to bad to be true :( +.\" +.TH xcrypt 3 2003-04-04 "" "RPC cryptography" +.SH NAME +xencrypt, xdecrypt, passwd2des \- RFS password encryption +.SH SYNOPSIS +.sp +.B "#include <rpc/des_crypt.h>" +.sp +.BR "void passwd2des (char " *passwd ", char *" key ");" +.sp +.BR "int xencrypt (char " *secret ", char *" passwd ");" +.sp +.BR "int xdecrypt (char " *secret ", char *" passwd ");" +.sp +.SH DESCRIPTION +The function +.B passwd2des() +takes a character string +.I passwd +of arbitrary length and fills a character array +.I key +of length 8. The array +.I key +is suitable for use as DES key. It has odd parity set in bit 0 of each byte. +Both other functions described here use this function to turn their +argument +.I passwd +into a DES key. +.LP +The +.B xencrypt() +function takes the ASCII character string +.I secret +given in hex, +.\" (over the alphabet 0123456789abcdefABCDEF), +which must have a length that is a multiple of 16, +encrypts it using the DES key derived from +.I passwd +by +.BR passwd2des() , +and outputs the result again in +.I secret +as a hex string +.\" (over the alphabet 0123456789abcdef) +of the same length. +.LP +The +.B xdecrypt() +function performs the converse operation. +.SH "RETURN VALUE" +The functions +.B xencrypt() +and +.B xdecrypt() +return 1 on success and 0 on error. +.SH AVAILABILITY +These routines are present in libc 4.6.27 and later, and in +glibc 2.1 and later. +.SH BUGS +The prototypes are missing from the abovementioned include file. +.SH "SEE ALSO" +.BR cbc_crypt (3) |