not sure if you've gotten any help on this yet. perhaps test the
CRYPT_SALT_LENGTH and CRYPT_MD5 constants to make sure that your system
and compiled php support md5 via crypt(). also, what salts did you try?
note the comments at the bottom of
http://php.net/manual/en/function.crypt.php about double-quoting $1$ and
how it may be interpreted and how to escape the $ characters. also, i'm
not sure if you need a $ character at the end of the salt string like in
some of the examples on those comments or not. unfortunately, i don't
have a system with php running right now to test.
you may also want to investigate http://php.net/manual/en/ref.mhash.php
depending on what kind of functionality you need. my guess is that
crypt() would be suitable for you if it worked properly.
-tcl.
On Tue, 17 Jul 2001, Jeremy Hansen wrote:
>
> I'd like to use php to do what I'm able to do in perl.
>
> use String::Random;
> use Crypt::PasswdMD5;
>
> $foo = new String::Random;
>
> $rand = $foo->randpattern("ss");
>
> print "Type in your password: ";
>
> $password = <STDIN>;
>
> $hash = unix_md5_crypt($password,$rand);
>
> $salt = substr($hash,3,2);
>
> print "SUBSTR: $salt\n";
> print "HASH: $hash\n";
> print "SALT: $rand\n";
>
> print "Type in your password: ";
> $password_verify = <STDIN>;
>
> $hash_verify = unix_md5_crypt($password_verify,$salt);
>
> if ($hash eq $hash_verify) {
> print "Good to go!\n";
> print "HASH BEFORE: $hash\n";
> print "HASH AFTER: $hash_verify\n";
> } else {
> print "You fuckered it up!\n";
> print "HASH BEFORE: $hash\n";
> print "HASH AFTER: $hash_verify\n";
> }
>
> srv1:~$ ./crypt.pl
> Type in your password: password
> SUBSTR: Kd
> HASH: $1$Kd$T9I3jUnJvGy0Ekfg2VobM0
> SALT: Kd
> Type in your password: password
> Good to go!
> HASH BEFORE: $1$Kd$T9I3jUnJvGy0Ekfg2VobM0
> HASH AFTER: $1$Kd$T9I3jUnJvGy0Ekfg2VobM0
>
> I've looked at crypt() in php and it claims that if you pass it a salt
> that resembles $1$ format, it should generate an md5 type hash, but this
> doesn't seem to be the case for me. The crypt only looks at the first two
> characters of the salt, no matter what, so my salt never changes because
> it just seems $1.
>
> Thanks for explaining what I'm doing wrong.
>
> -jeremy
>
> --
> salad.
>
>
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