Construct · 1 fields · 2 citations
One name. One construct. A landmark on the map.
● anchor · a standalone construct Nearest construct by meaningsubstitutioncompare the meaningsEvery construct on the map is compared with every other by the meaning of its definitions, and the closest one is surfaced here. The nearest construct to cipher is substitution.
Hold this as a prompt, not a verdict. Two constructs sitting close in meaning is a reason to read them side by side and decide for yourself whether they are one idea under two names. It is not proof that they are. Compare the meanings in the Collider.
A single standalone construct; nearby constructs are located against it in the Collider. Tap a field for its definition, unit, and measures.
In cryptography a cipher is a systematic method, now written as an algorithm, that transforms readable plaintext into disguised ciphertext and back again under the control of a key. Alberti's 1467 treatise on ciphers, De componendis cifris, set out the first polyalphabetic substitution method in Europe, and Shannon's 1949 Communication Theory of Secrecy Systems put the field on a mathematical footing by defining secrecy in terms of information. The referent is a rule for encoding and decoding messages, judged by how well it resists attack, not the numeral zero, a fault in an organ, or a freestyle gathering.[1][2]
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