63 lines
2.3 KiB
TeX
63 lines
2.3 KiB
TeX
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\begin{figure}[th]
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\begin{minipage}[b]{0.45\linewidth}
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\begin{center}
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\begin{tikzpicture}[scale = 0.4,
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transform shape,
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msglabel/.style = { text = Black, yshift = .3cm,
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sloped, midway },
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okmsg/.style = { ->, color = MidnightBlue, thick,
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>=stealth },
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rstmsg/.style = { ->, color = BrickRed, thick,
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>=stealth }
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]
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\node[draw = MidnightBlue,
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fill = CornflowerBlue,
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minimum width = .3cm,
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minimum height = 10cm
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] (h1) at (-4, 0) {};
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\node[draw = MidnightBlue,
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fill = CornflowerBlue,
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minimum width = .3cm,
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minimum height = 10cm
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] (h2) at (4, 0) {};
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\node[above = 0cm of h1] {Merchant};
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\node[above = 0cm of h2] {Exchange};
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\path[->, color = MidnightBlue, very thick, >=stealth]
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(-5, 4.5) edge
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node[rotate=90, text = Black, yshift = .3cm] {Time}
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(-5, -4.5);
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\path[->, color = MidnightBlue, thick, >=stealth]
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($(h1.east)+(0,3)$) edge
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node[text = Black, yshift = .3cm, sloped] {$S_{DK}(C), S_{c}(D)$}
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($(h2.west)+(0,2)$);
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\path[->, color = MidnightBlue, thick, >=stealth]
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($(h2.west)+(0,0.5)$) edge
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node[text = Black, yshift = .3cm, sloped] {200 OK: $S_{SK}(S_{c}(D))$}
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($(h1.east)+(0,-0.5)$);
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\path[rstmsg]
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($(h2.west)+(0, -2.5)$) edge
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node[msglabel] {409 CONFLICT: $S_{c}(D')$}
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($(h1.east)+(0, -3.5)$);
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\node at (5.3, 0) {};
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\end{tikzpicture}
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\end{center}
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\end{minipage}
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\hspace{0.5cm}
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\begin{minipage}[b]{0.45\linewidth}
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\tiny
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\begin{description}
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\item[$DK$] Denomination key
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\item[$S_{DK}()$] RSA-FDH signature using $DK$
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\item[$c$] Private coin key, $C := cG$.
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\item[$S_{C}()$] EdDSA signature using $c$
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\item[$D$] Deposit details
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\item[$SK$] Exchange's signing key
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\item[$S_{SK}()$] EdDSA signature using $SK$
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\item[$D'$] Conficting deposit details $D' \not= D$
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\end{description}
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\end{minipage}
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\end{figure}
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