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请输入英文单字，中文词皆可：

indistinguishability    
不可分辨性; 不可区分性

不可分辨性; 不可区分性

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  • Cryptography - Perfect secrecy $\implies$ adversarial . . .
    I'm just starting out with cryptography now and have gone over the various defnitions for a perfectly secret cipher One of the equvilant definitons is adversarial indistinguishability When trying
  • encryption - Perfectly secure and indistinguishability property . . .
    My doubt is: if an encryption scheme is indistinguishable from an eavesdropper but it is weak against a chosen plaintext attacks, so how can the scheme be considered still perfectly secure? Another doubt: "eavesdropping indistinguishability" and "perfectly secure" are both referred to information-theoretically secureness?
  • The essential differences between IND-CCA1 and IND-CCA2?
    Hi kelalaka and meshcollider ! I am aware of the definitions and security proofs of these models So the content of that post is not very helpful to me What I am looking for is some words to summarize the core differences between CCA1 and CCA2 in a short way just like "protect the ciphertexts "does (though it might not be that precise :-) Thus, this question is actually not an academic
  • public key - Indistinguishability versus semantic security . . .
    @fkraiem thanks for the advice, you're right that asking about course notes would be better directed at the teacher writing them, but all I have access to is the textbook the notes are based off, Foundations of Crypto, which doesn't offer information on the equivalency of semantic security and indistinguishability
  • Easy explanation of IND- security notions?
    There are many schemes that can advertise themselves with certain security notions, usually IND-CPA or IND-CCA2, for example plain ElGamal has IND-CPA security but doesn't provide IND-CCA security
  • encryption - How can we reduce indistinguishability-from-random to . . .
    How do we show that indistinguishability from uniform random implies left-or-right and real-or-random indistinguishability? Since left-or-right indistinguishability is equivalent to real-or-random indistinguishability, proving the result for ROR implies the result for LOR
  • complexity - Is Indistinguishability Obfuscation Real? - Cryptography . . .
    I've recently stumbled upon an interesting Quanta Magazine article It states that indistinguishability obfuscation (iO) 's theoretical feasibility has been proven, referencing a relatively recent
  • Motivation of Adversarial Indistinguishability Experiment
    Perfect (adversarial) indistinguishability We conclude this section by presenting another equivalent definition of perfect secrecy This definition is based on an experiment involving an adversary passively observing a ciphertext and then trying to guess which of two possible messages was encrypted
  • cryptanalysis - What are the practical implications of ciphertext . . .
    One can interpret indistinguishability as an overapproximation of the most common notions of security: Any system that is broken in a more practical way will also fail to meet indistinguishability, that is, all practically important security requirements are in fact subsumed by indistinguishability





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