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Showing results 1 to 6 of 6
Search took 0.00 seconds. Search: Posts Made By: bucabay

Forum: Advanced PHP Programming

11-01-2009, 11:17 PM

Replies: 19

How's this for a hashing algorithm?

Views: 1,563

Posted By bucabay

A visible salt does not decrease the...

A visible salt does not decrease the effectiveness of a brute force.
http://en.wikipedia.org/wiki/Brute_force_attack

Quoting the wikipedia article:

For hashes, the only unknown would be the...

Forum: Advanced PHP Programming

10-20-2009, 07:09 PM

Replies: 19

How's this for a hashing algorithm?

Views: 1,563

Posted By bucabay

It appears that rehashing...

It appears that rehashing (http://en.wikipedia.org/wiki/Key_strengthening) is a defense against precomputation attacks such as rainbow tables....

Forum: Advanced PHP Programming

10-19-2009, 09:25 PM

Replies: 54

Sticky: 8 Practical PHP Regular Expressions

Views: 32,629

Posted By bucabay

For email address validation there is two...

For email address validation there is two libraries on Google Code.

1) validating email syntax with regex
http://code.google.com/p/php-email-address-validation/

2) validating email's via SMTP...

Forum: Advanced PHP Programming

10-19-2009, 09:16 PM

Replies: 4

to decimal conversion problem

Views: 671

Posted By bucabay

I understand you're writing your own. But for...

I understand you're writing your own. But for anyone's reference, the base_convert() function can convert any base between 2 and 36 (0-9a-z).

http://php.net/manual/en/function.base-convert.php

:-)

Forum: Advanced PHP Programming

10-19-2009, 09:04 PM

Replies: 19

How's this for a hashing algorithm?

Views: 1,563

Posted By bucabay

I was assuming the salts were ASCII strings, thus...

I was assuming the salts were ASCII strings, thus the 256^64 possible salts and 16^64 possible hashes.

I understand that you cannot easily reverse a hashing algorithm, and that two inputs do not...

Forum: Advanced PHP Programming

10-19-2009, 03:48 PM

Replies: 19

How's this for a hashing algorithm?

Views: 1,563

Posted By bucabay

I think it should be stated as a random salt or a...

I think it should be stated as a random salt or a hard to guess salt and not as long and short. Of course a long salt like "try and guess me if you can" would not be a good choice.

If the salt can...

Showing results 1 to 6 of 6

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