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using md5 initwith shell?

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Operating Systems Linux using md5 initwith shell?
# 1  
Old 04-07-2010
Network using md5 initwith shell?
Hi guys,
Hi have a little problem with md5 digest.I want to translate in bash language this function in python:

Code:
digest = int(md5(value).hexdigest(),16)

(it's an md5 update)

how i "translate" this function in bash or openssl utility in bash?
Thanks
Last edited by pludi; 04-07-2010 at 06:50 AM.. Reason: code tags, please...
# 2  
Old 04-07-2010
Roughly?
Code:
digest=$( echo "ibase=16; $( echo $value | md5sum | cut -f1 -d ' ' | tr '[a-z]' '[A-Z]' )" | bc )

# 3  
Old 04-09-2010
Thanks but not the same resultSmilie
For example
Code:
echo -n "0011223344556677889910111213141516171819"|md5sum| cut -f1 -d ' ' | tr '[a-z]' '[A-Z]' | bc
19498340999655919679390993985391

and the pyton gives:

Code:
digest = int(md5(0011223344556677889910111213141516171819).hexdigest(),16)
37615660562377680210092719805016069009

whats the matter??
Last edited by pludi; 04-09-2010 at 06:57 AM.. Reason: code tags, please...
# 4  
Old 04-09-2010
It's because you didn't specify the input base. Compare
Code:
$ echo -n "0011223344556677889910111213141516171819" | md5sum | cut -f1 -d ' ' | tr '[a-z]' '[A-Z]' | bc
19498340999655919679390993985391
$ ( echo "ibase=16"; echo -n "0011223344556677889910111213141516171819" | md5sum | cut -f1 -d ' ' | tr '[a-z]' '[A-Z]' ) | bc
37615660562377680210092719805016069009

From man bc (emphasis added)
Quote:
Input numbers may contain the characters 0-9 and A-F. (Note: They must be capitals. Lower case letters are variable names.) Single digit numbers always have the value of the digit regardless of the value of ibase. (i.e. A = 10.) For multi-digit numbers, bc changes all input digits greater or equal to ibase to the value of ibase-1. This makes the number FFF always be the largest 3 digit number of the input base.
That means that, with an ibase default of 10, A-F are changed to the number 9:
Code:
$ echo -n "0011223344556677889910111213141516171819" | md5sum | cut -f1 -d ' ' | tr '[a-z]' '[A-Z]'
1C4C8340AAE655C1F67F3F0CF3A85391
$ echo -n "0011223344556677889910111213141516171819" | md5sum | cut -f1 -d ' ' | tr '[a-z]' '[A-Z]'| bc
19498340999655919679390993985391

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