Top "Block-cipher" questions

A block cipher is a keyed bijective function (also pseudo-random permutation).

How to detect block cipher mode

How to detect if a message was crypt by CBC or ECB mode? I have made a function who encrypt …

aes ecb block-cipher cbc-mode
ECB, CFB, OFB cipher modes in Openssl

I know that when I use CBC mode with Openssl, I can give as an input which is a multiple …

c openssl mode encryption block-cipher
CTR mode use of Initial Vector(IV)

from what I know, CTR mode doesn't use an Initial Vector. It just takes a counter, encrypts it with a …

java cryptography initialization-vector block-cipher
What is the default IV when encrypting with aes_256_cbc cipher?

I've generated a random 256 bit symmetric key, in a file, to use for encrypting some data using the OpenSSL command …

c++ encryption openssl aes block-cipher