Block Ciphers
Block ciphers and their modes are a core part of cryptography. Different modes have different strengths and weaknesses.
Two effects can be demonstrated:
Changing one bit in the plaintext changes about 50% of the ciphertext bits with the same key. Changing one bit in the key changes about 50% of the ciphertext bits with the same plaintext.
Learn about the different cipher modes of block ciphers and their behavior.