doc/system-documentation/glossary.tex


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\section*{Glossary}
\label{sec:glossary}
\addcontentsline{toc}{section}{\nameref{sec:glossary}}
\begin{description}
	 \item[account key] {A public-private key pair used to sign and authenticate the encrypted policy document upload.}
	 \item[authentication method] {An authentication method specifies how the user should convince the escrow provider that he is authorized to get a key share.}
	 \item[challenge] {A challenge is a data structure which holds information about a user authentication for a escrow provider.}
 	\item[core secret] {The core secret is the data which the user wants to protect with Anastasis.}
 	\item[escrow provider] {An escrow provider is referred  to servers which operate Anastasis.}
 	\item[kdf id] {The kdf id is an Argon2 hash over the user's unforgettable password.}
 	\item[key share] {A key share is a random byte sequence which is combined with other key shares to create a policy key.}
 	\item[master key] {The master key is a randomly generated key which is used to encrypt the user's core secret.}
 	\item[policy] {A policy is a list of challenges which need to be solved to recover the core secret.}
 	\item[policy key] {Every policy holds a separate policy key which is built through the combination of the key shares. The policy key is used to encrypt the master key.}
	\item[recovery document] {A data structure which contains a set of policies and challenges.}
	\item[truth] {A truth is a data structure which defines how a user authentication is performed, it also contains the key share which is released upon successful authentication.}
	\item[truth key] {A public-private key pair used to sign and authenticate the truth upload.}
    \item[truth seed] {A nonce used to generate the key material to sign the truth upload.}
\end{description}