print question - character representation

[Ajay]

hi!

i am calculating a digest of some data (using hmac) and printing it to a
cookie. the problem is the hash may contain special characters. when these
are printed they get converted to \<number> representation.
later when i receive the cookie i recalculate the hmac and do a comparison
which returns false because of the conversion when writing to a cookie

q - how do i stop the conversion from happening? if i cant then how can i
convert the hmac i recalculate on receiving the cookie to the same
representation as the one printed

thanks

cheers

 

[Brian Gough]

i am calculating a digest of some data (using hmac) and printing it to a
cookie. the problem is the hash may contain special characters. when these
are printed they get converted to \<number> representation.
later when i receive the cookie i recalculate the hmac and do a comparison
which returns false because of the conversion when writing to a cookie
q - how do i stop the conversion from happening?

Use the hexdigest() method instead of digest() to avoid non-printable
characters. See the hmac library documentation for details.

 

[Michael Foord]

hi!

i am calculating a digest of some data (using hmac) and printing it to a
cookie. the problem is the hash may contain special characters. when these
are printed they get converted to \<number> representation.
later when i receive the cookie i recalculate the hmac and do a comparison
which returns false because of the conversion when writing to a cookie

q - how do i stop the conversion from happening? if i cant then how can i
convert the hmac i recalculate on receiving the cookie to the same
representation as the one printed

thanks

cheers

One way is to use a binary to ascii conversion - like the binascii module.

Regards,

Fuzzy

http://www.voidspace.org.uk/atlantibots/pythonutils.html