Crate solitaire_cypher 

Solitaire Cypher

An implementation of the playing card based cypher created by Bruce Schneier and featured in Neal Stephenson’s “Cryptonomicon”. Includes crate solitaire_cypher_cli for command line usage. See: https://www.schneier.com/academic/solitaire/ and, of course, read Cryptonomicon!

Structs

CypherText

Container for an ordered collection of UpperLetters intended for use as cyphertext

KeyStream

Container for an ordered collection of UpperLetters for use as a KeyStream

Passphrase

Container for an ordered collection of UpperLetters intended for use as a passphrase

PlainText

Container for an ordered collection of UpperLetters intended as plaintext

Functions

decrypt

Decrypt CypherText into PlainText using the given KeyStream

encrypt

Encrypt PlainText into CypherText using the given KeyStream. Will panic if KeyStream length is less than PlainText length rounded up to the nearest multiple of 5.

get_key_stream

Create a KeyStream of the specified length from a Card deck

key_deck_from_passphrase

Create a key deck from a Passphrase (aka key). This follows the basic algorithm in that it does not include the “Optional step”.

Type Aliases

UpperLetter

Bounded type for ascii uppercase values A-Z