substitution cipher

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substitution cipher [‚səb·stə′tü·shən ‚sī·fər]

(communications)

A cipher in which the characters of the original message are replaced by other characters according to a key.

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No references found			The author begins a description of various symmetric-key cryptographic algorithms that includes basic substitution ciphers, cryptanalysis and other encryption standards. Understanding and applying cryptography and data security by SciTech Book News There is also a partial converse result: if two letter-sequences are related by a substitution cipher and have the same reduced alphabet-length, then either every letter that appears in the period does so at most once, or the two letter-sequences are similar. Properties of sequences by Norton, Simon / Word Ways This third programme, Le Chiffre Indechiffrable, traces the search for a new system of encryption, following the cracking of the mono-alphabetic substitution cipher. Scourge of the thinking classes; Clarkson BBC2, 10.00pm by Daily Record (Glasgow, Scotland)			subsonic nozzle subsonic speed Subspace Subspecies Substance substance P substandard propagation substantial substantial completion substantial improvement substantive substantive dye Substantive Law Substantivization substation Substation, Electric-Power Substatutory Act substellar object substellar point substituent Substitute substitute mode Substitution substitution alphabet Substitution Bone substitution cipher substitution group Substitution Method Substitution of Organs substitution reaction Substitution Reactions substitution solid solution substitution weighing substitutional impurity substitutive nomenclature substrain Substrate substrate failure Substrate Phosphorylation substratosphere Substratum substring Substructure Subsurface subsurface contour subsurface course subsurface current Subsurface Flow subsurface geology Subsurface Ice subsurface investigation			Substituted Judgement Substituted service Substituted service Substituted service Substituted service substituted-cysteine-accessibility method substitutes substitutes substitutes substitutes substitutes substitutes Substitutes Not Desired substituting substituting substituting substituting substituting substituting substituting for substitution substitution substitution substitution substitution Substitution Acceptable Substitution alphabet substitution bond swap Substitution Bone Substitution box substitution cipher Substitution ciphers substitution class Substitution cryptography Substitution distance Substitution failure is not an error substitution group Substitution method Substitution of attorney substitution of counsel Substitution of Organs Substitution of Trustee Substitution of Vehicle substitution product substitution product substitution product substitution product Substitution reaction Substitution reaction Substitution reactions Substitution reactions substitution solid solution Substitution swap Substitution Swaps substitution therapy substitution therapy substitution therapy substitution therapy substitution transfusion substitution weighing Substitution, Insertion, Deletion

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