Unverified50% confidenceConceptExact time
Information-theoretic security (also called unconditional security) means that even an attacker with unlimited computational power cannot obtain any information about the secret from the ciphertext or shares, and its security does not depend on computational hardness problems.
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50%
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Long-term
Relevance
10/27/2026
First Seen
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Related Claims
UnverifiedSecurity through obscurity refers to the practice of preventing attackers from discovering vulnerabilities by hiding a system's implementation details, code logic, or architectural design.80% similarVerifiedKerckhoffs's principle holds that the strength of a secure system should not depend on the secrecy of its design, but on the secrecy of the key.77% similarUnverifiedThe definition of confidential computing is: when data is processed in a hardware-based trusted execution environment, the data is encrypted in memory and is invisible to the host operating system, the hypervisor, and the cloud operator.74% similarUnverifiedThe information security field generally follows the principle of 'defense in depth', meaning that digital measures such as network firewalls, encryption, and permission management must be combined with physical protection to form a complete closed loop.71% similarUnverifiedSigsaly's unconditional security depended on the absolute secrecy and one-time use of keys, whereas modern E2EE is mostly based on computational complexity assumptions (such as the difficulty of factoring large numbers) and is not information-theoretically secure.71% similar
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