doc-src/TutorialI/Protocol/document/Public.tex

export more symbols

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\begin{isabellebody}%
\def\isabellecontext{Public}%
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\isadelimtheory
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\endisadelimtheory
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\isatagtheory
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\endisatagtheory
{\isafoldtheory}%
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\isadelimtheory
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\endisadelimtheory
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\begin{isamarkuptext}%
The function
\isa{pubK} maps agents to their public keys.  The function
\isa{priK} maps agents to their private keys.  It is merely
an abbreviation (cf.\ \S\ref{sec:abbreviations}) defined in terms of
\isa{invKey} and \isa{pubK}.%
\end{isamarkuptext}%
\isamarkuptrue%
\isacommand{consts}\isamarkupfalse%
\ pubK\ {\isaliteral{3A}{\isacharcolon}}{\isaliteral{3A}{\isacharcolon}}\ {\isaliteral{22}{\isachardoublequoteopen}}agent\ {\isaliteral{5C3C52696768746172726F773E}{\isasymRightarrow}}\ key{\isaliteral{22}{\isachardoublequoteclose}}\isanewline
\isacommand{abbreviation}\isamarkupfalse%
\ priK\ {\isaliteral{3A}{\isacharcolon}}{\isaliteral{3A}{\isacharcolon}}\ {\isaliteral{22}{\isachardoublequoteopen}}agent\ {\isaliteral{5C3C52696768746172726F773E}{\isasymRightarrow}}\ key{\isaliteral{22}{\isachardoublequoteclose}}\isanewline
\isakeyword{where}\ {\isaliteral{22}{\isachardoublequoteopen}}priK\ x\ \ {\isaliteral{5C3C65717569763E}{\isasymequiv}}\ \ invKey{\isaliteral{28}{\isacharparenleft}}pubK\ x{\isaliteral{29}{\isacharparenright}}{\isaliteral{22}{\isachardoublequoteclose}}%
\begin{isamarkuptext}%
\noindent
The set \isa{bad} consists of those agents whose private keys are known to
the spy.

Two axioms are asserted about the public-key cryptosystem. 
No two agents have the same public key, and no private key equals
any public key.%
\end{isamarkuptext}%
\isamarkuptrue%
\isacommand{axioms}\isamarkupfalse%
\isanewline
\ \ inj{\isaliteral{5F}{\isacharunderscore}}pubK{\isaliteral{3A}{\isacharcolon}}\ \ \ \ \ \ \ \ {\isaliteral{22}{\isachardoublequoteopen}}inj\ pubK{\isaliteral{22}{\isachardoublequoteclose}}\isanewline
\ \ priK{\isaliteral{5F}{\isacharunderscore}}neq{\isaliteral{5F}{\isacharunderscore}}pubK{\isaliteral{3A}{\isacharcolon}}\ \ \ {\isaliteral{22}{\isachardoublequoteopen}}priK\ A\ {\isaliteral{5C3C6E6F7465713E}{\isasymnoteq}}\ pubK\ B{\isaliteral{22}{\isachardoublequoteclose}}%
\isadelimproof
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\endisadelimproof
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\isatagproof
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\endisatagproof
{\isafoldproof}%
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\isadelimproof
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\endisadelimproof
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\isadelimproof
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\endisadelimproof
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\isatagproof
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\endisatagproof
{\isafoldproof}%
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\isadelimproof
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\endisadelimproof
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\isadelimproof
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\endisadelimproof
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\isatagproof
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\endisatagproof
{\isafoldproof}%
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\isadelimproof
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\endisadelimproof
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\isadelimproof
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\endisadelimproof
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\isatagproof
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\endisatagproof
{\isafoldproof}%
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\isadelimproof
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\endisadelimproof
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\isadelimproof
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\endisadelimproof
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\isatagproof
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\endisatagproof
{\isafoldproof}%
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\isadelimproof
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\endisadelimproof
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\isadelimproof
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\endisadelimproof
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\isatagproof
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\endisatagproof
{\isafoldproof}%
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\isadelimproof
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\endisadelimproof
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\isadelimproof
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\endisadelimproof
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\isatagproof
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\endisatagproof
{\isafoldproof}%
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\isadelimproof
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\endisadelimproof
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\isadelimproof
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\endisadelimproof
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\isatagproof
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\endisatagproof
{\isafoldproof}%
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\isadelimproof
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\endisadelimproof
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\isadelimproof
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\endisadelimproof
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\isatagproof
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\endisatagproof
{\isafoldproof}%
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\isadelimproof
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\endisadelimproof
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\isadelimproof
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\endisadelimproof
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\isatagproof
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\endisatagproof
{\isafoldproof}%
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\isadelimproof
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\endisadelimproof
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\isadelimproof
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\endisadelimproof
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\isatagproof
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\endisatagproof
{\isafoldproof}%
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\isadelimproof
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\endisadelimproof
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\isadelimproof
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\endisadelimproof
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\isatagproof
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\endisatagproof
{\isafoldproof}%
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\isadelimproof
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\endisadelimproof
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\isadelimproof
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\endisadelimproof
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\isatagproof
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\endisatagproof
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\isadelimproof
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\endisadelimproof
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\isadelimproof
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\endisadelimproof
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\isatagproof
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\endisatagproof
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\isadelimproof
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\endisadelimproof
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\isadelimproof
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\endisadelimproof
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\isatagproof
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\endisatagproof
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\isadelimproof
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\endisadelimproof
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\isadelimproof
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\endisadelimproof
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\isatagproof
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\endisatagproof
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\isadelimproof
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\endisadelimproof
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\isadelimproof
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\endisadelimproof
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\isatagproof
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\endisatagproof
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\isadelimproof
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\endisadelimproof
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\isadelimproof
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\endisadelimproof
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\isatagproof
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\endisatagproof
{\isafoldproof}%
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\isadelimproof
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\endisadelimproof
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\isadelimproof
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\endisadelimproof
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\isatagproof
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\endisatagproof
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\isadelimproof
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\endisadelimproof
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\isadelimML
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\endisadelimML
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\isatagML
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\endisatagML
{\isafoldML}%
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\isadelimML
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\endisadelimML
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\isadelimtheory
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\endisadelimtheory
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\isatagtheory
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\endisatagtheory
{\isafoldtheory}%
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\isadelimtheory
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\endisadelimtheory
\end{isabellebody}%
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