hmac key collision

hmac_collision.py

import hashlib
import hmac
string1 = 'plnlrtfpijpuhqylxbgqiiyipieyxvfsavzgxbbcfusqkozwpngsyejqlmjsytrmd'
string2 = 'eBkXQTfuBqp\'cTcar&g*'
key1 = hashlib.pbkdf2_hmac('sha1', string1.encode(), b'salt', 100000)
key2 = hashlib.pbkdf2_hmac('sha1', string2.encode(), b'salt', 100000)

hmac.new(key1, b"test", hashlib.sha256).hexdigest()
# '8122f91c70f4ac2205fc2039fc27bac3d54ccd91ee5ebf8d58fe13b406abd34a'
hmac.new(key2, b"test", hashlib.sha256).hexdigest()
# '8122f91c70f4ac2205fc2039fc27bac3d54ccd91ee5ebf8d58fe13b406abd34a'