I want to create unique <client-key> and <client-secret> for the users who registers themselves for the service.
So, I was searching for the same and came up with these options:
It's a silly question but I want to know that which implementation is more secure to use (with proper explanation)? Why? And what are the advantages of using it over others?
Note:
AFAIK,
random.SystemRandom()usesos.urandom(x). So comparison is mainly betweenuuidandrandom.SystemRandom().
Here's what I've tried so far:
1)
import random
temp = random.SystemRandom()
random_seq = ''.join(temp.choice(CHARACTER_SET) for x in range(x))
>>> 'wkdnP3EWxtEQWnB5XhqgNOr5RKL533vO7A40hsin'
2)
import uuid
str(uuid.uuid4())
>>> 'f26155d6-fa3d-4206-8e48-afe15f26048b'
I'm not sure about the solution. So, any help would be appreciated.
P.S. It'd be great if any solution is available for both Python 2.x and 3.x.
It does not make any difference, all are of them use os.urandom both in Python 3 and 2. uuid4 just instantiates a new UUID object by passing in 16 random bytes to it:
def uuid4():
"""Generate a random UUID."""
return UUID(bytes=os.urandom(16), version=4)
so from a standpoint of how the randomness is generated, these don't differ.
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