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| zix... |
 Posted: Sat Sep 05, 2009 11:08 pm |
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Guest
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Hi,
I am trying to use the encrypt API in linux. My code is like this
below:
#define _XOPEN_SOURCE
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#define _GNU_SOURCE
#include <crypt.h>
#include <errno.h>
#include <string.h>
int main()
{
char str[64]="abcdef";
char *key;
errno=0;
key=(char *)calloc(64,1);
memset(key, 1, 20);
setkey(key);
encrypt(str,0);
printf("str mod is %s errno is %d\n", str, errno);
return 0;
}
I expected an ecrypted string, but I am gettign the output as:
str mod is errno is 0
where am i going wrong? any idea?
Thanks for the help.
zix |
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| zix... |
| Posted: Sat Sep 05, 2009 11:44 pm |
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Guest
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On Sep 6, 2:23 pm, Markku Kolkka <markku.kol... at (no spam) iki.fi> wrote:
Quote: zix wrote:
I am trying to use the encrypt API in linux.
(...)
I expected an ecrypted string, but I am gettign the output as:
str mod is errno is 0
where am i going wrong? any idea?
encrypt() works on 64-bit blocks of data encoded in an array of 64
bytes, it doesn't handle C-style null terminated text strings. Read the
man page for encrypt().
--
Markku Kolkka
markku.kol... at (no spam) iki.fi
oops, thanks a lot..btw, how do i then encrypt/decrypt a string in
linux? |
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| Markku Kolkka... |
| Posted: Sun Sep 06, 2009 3:23 am |
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Guest
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zix wrote:
Quote: I am trying to use the encrypt API in linux.
(...)
I expected an ecrypted string, but I am gettign the output as:
str mod is errno is 0
where am i going wrong? any idea?
encrypt() works on 64-bit blocks of data encoded in an array of 64
bytes, it doesn't handle C-style null terminated text strings. Read the
man page for encrypt().
--
Markku Kolkka
markku.kolkka at (no spam) iki.fi |
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| John Hasler... |
| Posted: Sun Sep 06, 2009 6:21 am |
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Guest
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Consider des_crypt instead.
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John Hasler
john at (no spam) dhh.gt.org
Dancing Horse Hill
Elmwood, WI USA |
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| zix... |
| Posted: Mon Sep 07, 2009 8:11 pm |
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Guest
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On Sep 6, 5:21 pm, John Hasler <j... at (no spam) dhh.gt.org> wrote:
Quote: Consider des_crypt instead.
--
John Hasler
j... at (no spam) dhh.gt.org
Dancing Horse Hill
Elmwood, WI USA
I am able to encrypt by crypt call. The only disadvantage it has is it
only takes 8 characters of string. But I took care by appending the
next 8 char encoded part after the 1st part and could manage to handle
long strings.
This is just for folks who also get stuck. :-)
Thanks Everybody,
zix |
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| Joe Beanfish... |
| Posted: Tue Sep 08, 2009 10:53 am |
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Guest
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zix wrote:
Quote: On Sep 6, 2:23 pm, Markku Kolkka <markku.kol... at (no spam) iki.fi> wrote:
zix wrote:
I am trying to use the encrypt API in linux.
(...)
I expected an ecrypted string, but I am gettign the output as:
str mod is errno is 0
where am i going wrong? any idea?
encrypt() works on 64-bit blocks of data encoded in an array of 64
bytes, it doesn't handle C-style null terminated text strings. Read the
man page for encrypt().
--
Markku Kolkka
markku.kol... at (no spam) iki.fi
oops, thanks a lot..btw, how do i then encrypt/decrypt a string in
linux?
Pad the length with NULLs to the required length. |
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