This is not correct, block size and key size are not the same thing for symmetric encryption algorithms.
AES's block size is always 128-bit, it's not something cryptography chooses to use, it's the definition of the algorithm. Alex On Thu, Feb 2, 2023 at 8:02 PM Arshad Khan <khan.m.ars...@gmail.com> wrote: > > Hello > > I have a question regarding AES in python cryptography which uses a block > size of 128 bits. Currently I am using 256 bit keys with AES in CTR mode. > However, internally the python cryptography uses a block size of 128. My > understanding is that block size and key size are the same for symmetric > encryption. How does a 256 bits key work in this case? Appreciate if someone > could provide some explanation about this and clear my confusion. > > Thanks > Arshad > _______________________________________________ > Cryptography-dev mailing list > Cryptography-dev@python.org > https://mail.python.org/mailman/listinfo/cryptography-dev -- All that is necessary for evil to succeed is for good people to do nothing. _______________________________________________ Cryptography-dev mailing list Cryptography-dev@python.org https://mail.python.org/mailman/listinfo/cryptography-dev
