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Erschienen in:
2014 | OriginalPaper | Buchkapitel
Human Decipherable Encryption Scheme
verfasst von : Dr. Sebastian Pape
Erschienen in: Authentication in Insecure Environments
Verlag: Springer Fachmedien Wiesbaden
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At first, we define four sets suitable for the domains and codomains of the encoding and encryption functions defined in the next subsections. As mentioned in Sect. 2.2, messages are encrypted with a key to ciphertexts as shown in Fig. 4.1a. Without anticipating the following subsections, we point out that messages are first encoded and then encrypted with a key distinguishing between codings and encryptions (see Fig. 4.1). Therefore the following definitions introduce messages, codings, ciphertexts and keys consisting of characters from a particular alphabet which fit into the notion one may intuitively expect.