Hashlib is a Python module that implements a common interface to many different secure hash and message digest algorithms.
Questions tagged [hashlib]
427 questions
0
votes
1 answer
When using hashlib in Python, a different value returned when fetched from a database
I am using Python 3.5 and when I use hashlib.md5(), a different value is returned from a database than when a string is hashed outside.
The code I am using:
self.m = hashlib.md5()
self.m.update(self.password.encode('utf-8'))
self.passCheck =…
Ben Dent
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1 answer
Trouble inserting variable in sqlite python
Im having a problem inserting a variable into sqlite3 and the variable is hashed.
Here's my code:
if passadefinir == passadefinir2:
maindb.execute("DELETE FROM Password WHERE ID = 'not'")
maindb.execute("INSERT INTO Password(ID) VALUES…
Luís Duarte
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1 answer
Hashlib in Windows and Linux
I'm writing a p2p application in Python and am using the hashlib module to identify files with the same contents but different names within the network.
The thing is that I tested the code that does the hash for the files in Windows (Vista), with…
Nahu
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1 answer
Two users, same machine, same python installs, one can't import paramiko without UserWarning, module already imported
When running following code, user without error reports normal termination.
python -c "import paramiko"
User with error reports termination (note, no exception) with the…
seanmus
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votes
1 answer
Cannot install hashlib on Heroku Web Application
I am trying to deploy a python web application on Heroku which uses the hashlib module in it. I included hashlib in the 'requirements.txt' file (All modules mentioned in the file are installed by Heroku using pip)
However it gives me an…
Mihir Khandekar
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0 answers
javascript Base64 encoding to python
I have this line in a postman pre-script that uses javascript:
var hash256 = CryptoJS.HmacSHA256(rawSignature, Secret);
var hashbase64 = hash256.toString(CryptoJS.enc.Base64);
im trying to convert that to a python script (2.7) and have come up with…
Pete
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importing hashlib error after mac os updated
After upgrading my mac os from Captain to Sierra, I am getting following error while importing hashlib.
AttributeError: 'module' object has no attribute
'openssl_md_meth_names'
The library was getting successfully imported in the Captain…
Techy John
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votes
1 answer
Python hashlib and sparse files
I wanted to know how does python hashlib library treat sparse files. If the file has a lot of zero blocks then instead of wasting CPU and memory on reading zero blocks does it do any optimization like scanning the inode block map and reading only…
CodeWithPride
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2 answers
How to mock MD5 hash collision
I am using a private Ubuntu server and am testing a private application
I am using the Python hashlib library for generating MD5 hashes.
Now I want the MD5 function always return my specific number although different input. How can I do this? Is…
Nguyen Diep
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Hashing Twitter API Keys and Tokens Using Python's hashlib
I am writing a program that parses a file and tweets lines from it. I was able to write the program but I was curious if I should hash the Keys and Tokens that Twitter provides for added security? They tell you to protect the keys because they can…
pjmorin0001
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1 answer
Hashlib MemoryError in Python 3.5 but not in 2.7
I've been porting a set of Python 2.7 scripts to Python 3.5 so that I can use some libraries that aren't available in 2.7, but I'm getting MemoryError from this code that worked previously:
import hashlib, functools
sha2h = hashlib.sha256()
with…
CrunchBangDev
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- 7
0
votes
0 answers
How to walk through the OS and generate a hash of every file then output into a txt file?
so I have this file to walk through the OS and generate a hash of every file using python, however I want it to output the hashes into a txt file. I have tried using:
from __future__ import print_function
But I cannot seem to get this to work all…
dperrie
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How can I use Python's hashlib to generate a checksum for a directory that matches 7zip's checksum?
I've found an example online that generates a checksum by hashing the hashes of each individual file in whatever order os.path.walk() lists them (which is consistent so that's fine). I've copied the example here:
def GetHashofDirs(directory,…
sgfw
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2 answers
Python hashlib.sha256() digest length
I have some python code,
hash_object = hashlib.sha256(b'Hello World')
hex_dig = hash_object.hexdigest()
cipher = AES.new(hex_dig, AES.MODE_CBC, iv)
plain = cipher.decrypt( cipher )
but, I have an error - ValueError: AES key must be either 16,…
khi0227
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votes
1 answer
How to truncate a SHA256 key to emulate a 128 key in Ruby
I want to truncate a 256 key to simulate a 128 key. This is easy enough in Python with [:16]
>>> hashed_master_key = hashlib.sha256(master_key).digest()
>>> len(hashed_master_key)
32
>>> hashed_master_key =…
onknows
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