How to recognize the encryption algorithm for ciphertext?

Question

Cryptography

Are there ways to find out, having only a ciphertext, with what algorithm it was encrypted. For example, is it possible to distinguish the AES ciphertext from the Twofish ciphertext, while the block length and key length are identical for the two 128/256 bit algorithms.

Answer 1

They encrypt in order not to be decrypted, and if you can immediately determine from the encrypted data which algorithm was encrypted, then this is a big minus for the implementation of encryption. So no, you can't.