Regarding constructing a good encryption algorithm， what does creating an avalanche effect indicate？（）A、Altering the key length causes the ciphertext to be completely differentB、Changing only a few bits of a ciphertext message causes the plain text to be
题目
Regarding constructing a good encryption algorithm， what does creating an avalanche effect indicate？（）
A、Altering the key length causes the ciphertext to be completely different
B、Changing only a few bits of a ciphertext message causes the plain text to be completely different
C、Altering the key length causes the plain text to be completely different
D、Changing only a few bits of a plain-text message causes the ciphertext to be completely different
