The thing is, if I do that it is possible to get an output string with a + / or possibly = in it, and that needs encoding to be kept in a url.
Of course, I could do that myself pretty easily when I have the base64 hash.
Thanks!
/J
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[d/l] |
I had this issue with MD5 hashes recently, but with even more constraints!
First, on top of using the MD5 hash in a URL, and sending that URL in an email, I also needed to use the MD5 hash in an actual email address. (Thus allowing the recipient to either go to the URL or reply to the email address.) Second, I couldn't translate to a period within the MD5 hash, because that character was already being used for something else.
I ended up using this translation (the translation from plus to plus is intentional):
tr,+=/,+-_,
That works fine for the email address. The only iffy part is the plus in the URL; I just made sure that the CGI script doesn't convert the plus to a space.
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[d/l] |
OK, I'm (relatively) lazy. Looking at the source code
for one Perl MD5 implementation, I see that the base64
output consists of A-Za-z0-9+/. Where does "=" come in?
Why do you need to use 65 different characters?
-
tye
(but my friends call me "Tye")
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