Hashlib is a Python module that implements a common interface to many different secure hash and message digest algorithms.
Questions tagged [hashlib]
361 questions
7
votes
2 answers
Compare md5 hashes of two files in python
I want to compare hashes of two files. But no matter if files are different or not, even with different hashes comparison results True
Here is the code:
import hashlib
hasher1 = hashlib.md5()
afile1 = open('canvas.png', 'rb')
buf1 =…
VAGrus
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7
votes
3 answers
Python SHA1 Integer
I did two SHA1 in C code, one is for a string, and another is for a integer, and get different result.
SHA_init(&ctx);
SHA_update(&ctx, "1234", 4);
sha = SHA_final(&ctx);
unsigned n = 1234;
SHA_init(&ctx);
SHA_update(&ctx, &n, sizeof(n));
sha =…
Weicuan Yan
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- 1
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7
votes
2 answers
Convert unique numbers to md5 hash using pandas
Good morning, All.
I want to convert my social security numbers to a md5 hash hex number. The outcome should be a unique md5 hash hex number for each social security number.
My data format is as follows:
ob =…
Dave
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7
votes
1 answer
HMAC signing requests in Python
I'm trying to create an HMAC-SHA512 signed request for an API call in Python 3.4 using the requests library. I'm trying to follow docs, but am hitting this error:
AttributeError: '_hashlib.HASH' object has no attribute 'new'
Here's some code. It's…
Ludo
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7
votes
4 answers
Python shortest unique id from strings
I have more than 100 million unique strings (VARCHAR(100) UNIQUE in MySQL database). Now I use the code below to create unique hash from them (VARCHAR(32) UNIQUE) in order to reduct index size of the InnoDB table (a unique index on varchar(100) is…
jack
- 15,121
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6
votes
3 answers
Hashlib hashes not comparing properly
Heres my code:
import hashlib
real = hashlib.sha512("mom")
status = True
while status:
inp = raw_input("What's the password?")
converted = hashlib.sha512(inp)
if converted == real:
print "Access granted!"
status =…
user775171
6
votes
3 answers
What is _md5.md5 and why is hashlib.md5 so much slower?
Found this undocumented _md5 when getting frustrated with the slow stdlib hashlib.md5 implementation.
On a macbook:
>>> timeit hashlib.md5(b"hello world")
597 ns ± 17.2 ns per loop (mean ± std. dev. of 7 runs, 1000000 loops each)
>>> timeit…
wim
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6
votes
1 answer
How to get the same hash in Python3 and Mac / Linux terminal?
How can I get the same sha256 hash in terminal (Mac/Linux) and Python?
Tried different versions of the examples below, and search on StackOverflow.
Terminal:
echo 'test text' | shasum -a…
Punnerud
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6
votes
3 answers
SHA 512 crypt output written with Python code is different from mkpasswd
Running mkpasswd -m sha-512 -S salt1234 password results in the following:
$6$salt1234$Zr07alHmuONZlfKILiGKKULQZaBG6Qmf5smHCNH35KnciTapZ7dItwaCv5SKZ1xH9ydG59SCgkdtsTqVWGhk81
I have this snippet of Python code that I thought would output the same,…
user1720897
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6
votes
1 answer
Securely overwrite Python variables in RAM?
I'm making a program in Python that will involve hashing a password. Assuming I use this to get the password:
import getpass
password = getpass.getpass("Password: ")
And then hash it, is there any way to securely remove all traces of the unhashed…
tkbx
- 13,156
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6
votes
6 answers
the fastest way to create checksum for large files in python
i need to transfer large files across network and need to create checksum for them on hourly basis. so the speed for generating checksum is critical for me.
somehow i can't make zlib.crc32 and zlib.adler32 working with files larger than 4GB on…
pixelblender
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5
votes
5 answers
Unable to import "hashlib"
I'm trying to encrypt a string in sha1 and I get an error from the server:
"No Module Named hashlib"
By using the following code:
import hashlib
encrypted = hashlib.sha1(string)
encrypted = encrypted.digest()
I'll appreciate any help,
Thanks,
Guy…
user330885
5
votes
1 answer
How do I create a signature numerical for OneHotEncoded values and hashlibs in python?
I want to assign a numberical digit to onehotencoded values in my dataframe:
import pandas as pd
scale = df.ServiceSubCodeKey.max() + 1
onehot = []
for claimid, ssc in df.groupby('ClaimId').ServiceSubCodeKey:
ssc_list = ssc.to_list()
…
Joe Tha
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5
votes
3 answers
Invalid hash, timestamp, and key combination in Marvel API Call
I'm trying to form a Marvel API Call.
Here's a link on authorization:
https://developer.marvel.com/documentation/authorization
I'm attempting to create a server-side application, so according to the link above, I need a timestamp, apikey, and hash…
Philosopher-Programmer
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- 7
5
votes
3 answers
Python and hashlib module
I've just installed Python 2.6.6 from sources and what I get:
>>> import hashlib
Traceback (most recent call last):
File "", line 1, in
File "/usr/local/lib/python2.6/hashlib.py", line 136, in
md5 =…
zerkms
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