The indistinguishability of the two twins fooled everyone. 这对双胞胎的不可区分性骗过了所有人。
In modern cryptography, indistinguishability ensures that an attacker cannot tell which message was encrypted, even after observing many ciphertexts. 在现代密码学中,不可区分性保证攻击者即使观察了大量密文,也无法判断到底加密的是哪一条消息。