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diff --git a/doc/implement/rcache-i.tex b/doc/implement/rcache-i.tex
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index e00a639da..000000000
--- a/doc/implement/rcache-i.tex
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@@ -1,142 +0,0 @@
-The replay cache functions deal with verifying that AP_REQ's do not
-contain duplicate authenticators; the storage must be non-volatile for
-the site-determined validity period of authenticators.
-
-Each replay cache has a string {\bf name} associated with it.  The use of
-this name is dependent on the underlying caching strategy (for
-file-based things, it would be a cache file name).  The
-caching strategy should use non-volatile storage so that replay
-integrity can be maintained across system failures.
-
-\subsubsection{The krb5_rc_ops structure}
-In order to implement a new replay cache type, the programmer should
-declare a {\bf krb5_rc_ops} structure, and fill in the elements of the
-structure appropriately, by implementing each of the replay cache
-functions for the new replay cache type.  
-
-The prefix element specifies the prefix {bf name} of the the new replay
-cache type.  For example, if the prefix {\bf name} is ``dfl'', then if the
-program calls \funcname{krb5_rc_resolve} with a credential cache name
-such as ``dfl:host'', then \funcname{krb5_rc_resolve}
-will call the resolve function (as defined by the {\bf krb5_rc_ops}
-structure where the prefix element is ``dfl'') and pass it the
-argument ``host''.
-
-Before a new replay cache type can be recognized by
-\funcname{krb5_rc_resolve}, it must be registered with the Kerberos
-library by calling \funcname{krb5_rc_register}.
-
-\begin{verbatim}
-typedef struct _krb5_rc_ops {
-    char *type;
-    krb5_error_code (*init)((krb5_rcache,krb5_deltat));
-    krb5_error_code (*recover)((krb5_rcache));
-    krb5_error_code (*destroy)((krb5_rcache));
-    krb5_error_code (*close)((krb5_rcache));
-    krb5_error_code (*store)((krb5_rcache,krb5_donot_replay *));
-    krb5_error_code (*expunge)((krb5_rcache));
-    krb5_error_code (*get_span)((krb5_rcache,krb5_deltat *));
-    char *(*get_name)((krb5_rcache));
-    krb5_error_code (*resolve)((krb5_rcache, char *));
-} krb5_rc_ops;
-\end{verbatim}
-
-
-\subsubsection{Per-type functions}
-The following entry points must be implemented for each type of
-replay cache.
-
-\begin{funcdecl}{init}{krb5_error_code}{\funcin}
-\funcarg{krb5_rcache}{id}
-\funcarg{krb5_deltat}{auth_lifespan}
-\end{funcdecl}
-
-Creates/refreshes the replay cache identified by \funcparam{id} and sets its
-authenticator lifespan to \funcparam{auth_lifespan}.  If the 
-replay cache already exists, its contents are destroyed.
-
-%Errors: permission errors, system errors
-
-\begin{funcdecl}{recover}{krb5_error_code}{\funcin}
-\funcarg{krb5_rcache}{id}
-\end{funcdecl}
-Attempts to recover the replay cache \funcparam{id}, (presumably after a
-system crash or server restart).
-
-%Errors: error indicating that no cache was found to recover
-
-\begin{funcdecl}{destroy}{krb5_error_code}{\funcin}
-\funcarg{krb5_rcache}{id}
-\end{funcdecl}
-
-Destroys the replay cache \funcparam{id}.
-Requires that \funcparam{id} identifies a valid replay cache.
-
-%Errors: permission errors.
-
-\begin{funcdecl}{close}{krb5_error_code}{\funcin}
-\funcarg{krb5_rcache}{id}
-\end{funcdecl}
-
-Closes the replay cache \funcparam{id}, invalidates \funcparam{id},
-and releases any other resources acquired during use of the replay cache.
-Requires that \funcparam{id} identifies a valid replay cache.
-
-%Errors: permission errors
-
-\begin{funcdecl}{store}{krb5_error_code}{\funcin}
-\funcarg{krb5_rcache}{id}
-\funcarg{krb5_donot_replay *}{rep}
-\end{funcdecl}
-Stores \funcparam{rep} in the replay cache \funcparam{id}.
-Requires that \funcparam{id} identifies a valid replay cache.
-
-Returns KRB5KRB_AP_ERR_REPEAT if \funcparam{rep} is already in the
-cache.  May also return permission errors, storage failure errors.
-
-\begin{funcdecl}{expunge}{krb5_error_code}{\funcin}
-\funcarg{krb5_rcache}{id}
-\end{funcdecl}
-Removes all expired replay information (i.e. those entries which are
-older than then authenticator lifespan of the cache) from the cache
-\funcparam{id}.  Requires that \funcparam{id} identifies a valid replay
-cache.
-
-%Errors: permission errors.
-
-\begin{funcdecl}{get_span}{krb5_error_code}{\funcin}
-\funcarg{krb5_rcache}{id}
-\funcout
-\funcarg{krb5_deltat *}{auth_lifespan}
-\end{funcdecl}
-Fills in \funcparam{auth_lifespan} with the lifespan of
-the cache \funcparam{id}.
-Requires that \funcparam{id} identifies a valid replay cache.
-
-\begin{funcdecl}{resolve}{krb5_error_code}{\funcinout}
-\funcarg{krb5_rcache}{id}
-\funcin
-\funcarg{char *}{name}
-\end{funcdecl}
-
-Initializes private data attached to \funcparam{id}.  This function MUST
-be called before the other per-replay cache functions.
-
-Requires that \funcparam{id} points to allocated space, with an
-initialized \funcparam{id{\ptsto}ops} field.
-
-Since \funcname{resolve} allocates memory,
-\funcname{close} must be called to free the allocated memory,
-even if neither \funcname{init} or
-\funcname{recover} were successfully called by the application.
-
-%Returns:  allocation errors.
-
-
-\begin{funcdecl}{krb5_rc_get_name}{char *}{\funcin}
-\funcarg{krb5_rcache}{id}
-\end{funcdecl}
-
-Returns the name (excluding the type) of the rcache \funcparam{id}.
-Requires that \funcparam{id} identifies a valid replay cache.
-