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\begin{tikzpicture}[
-latex,
rrs/.style = {
draw = gray!30,
thick,
rounded rectangle,
fill = white,
minimum width = 2cm,
font = \fontsize{8}{8}\selectfont,
text = white,
},
ls/.style = {
font=\fontsize{6}{6}\selectfont,
},
]
\draw (0, 1) node[rrs, fill=darkRed] (Log) {Log};
\draw (0, -1) node[rrs, fill=darkGreen] (Subject) {Subject};
\draw (3.5, 0) node[rrs, fill=darkBlue] (Endpoint) {Notifier};
\draw (-3.5, 0) node[rrs, fill=gray] (Monitor) {Monitor};
\path [draw, ->, rounded corners]
(Log.north) |-
($ (Log.north) + (Log.west) - (Log) + (-0.25, 0.25) $)
node[ls, above, pos=0.75]{
STH with snapshot extension
} |-
(Log.west);
\path [draw, ->, rounded corners]
(Monitor.south) |-
($ (Monitor.south) + (Monitor.west) - (Monitor) + (-0.25, -0.25) $)
node[ls, below, pos=0.75]{
verify STH extension
} |-
(Monitor.west);
\path [draw, ->, rounded corners]
(Subject.south) |-
($ (Subject.south) + (Subject.east) - (Subject) + (0.25, -0.25) $)
node[ls, below, pos=0.75]{
verify notification
} |-
(Subject.east);
\path [draw, <-, dashed, rounded corners]
(Endpoint.north) |-
($ (Endpoint.east) + (Endpoint.north) - (Endpoint) + (0.25, 0.25) $)
node[ls, above, pos=0.75]{
optional verify
} |-
(Endpoint.east);
\draw [->]
(Log.south east) --
node[ls, sloped, anchor=center, above]{%
batch, STH
}
(Endpoint.north west);
\draw [->]
(Endpoint.south west) --
node[ls, sloped, anchor=center, above]{%
notification
}
(Subject.north east);
\path [draw, ->]
(Log.south west) --
node[ls, sloped, anchor=center, above]{%
batch, STH
}
(Monitor.north east);
\end{tikzpicture}
|
