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author | Özgür Kesim <oec-taler@kesim.org> | 2023-05-12 13:40:22 +0200 |
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committer | Özgür Kesim <oec-taler@kesim.org> | 2023-05-12 13:40:22 +0200 |
commit | 4833234df63d7da774299b336adb925e700bd4b4 (patch) | |
tree | abb478b860c2d3f292ded9364300ce73b1d60d11 /doc/flows/int-pull.tex | |
parent | 9130cda9e775131d3ced613b7f238a4c9e43ad5a (diff) | |
parent | ff1a28319fe31741958a0b1cfa761fd44878db45 (diff) | |
download | exchange-4833234df63d7da774299b336adb925e700bd4b4.tar.xz |
Merge branch 'master' into age-withdraw
Diffstat (limited to 'doc/flows/int-pull.tex')
-rw-r--r-- | doc/flows/int-pull.tex | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/doc/flows/int-pull.tex b/doc/flows/int-pull.tex new file mode 100644 index 000000000..8c9b66b1b --- /dev/null +++ b/doc/flows/int-pull.tex @@ -0,0 +1,55 @@ +\section{Pull payment (aka invoicing)} + +\begin{figure}[h!] + \begin{sequencediagram} + \newinst{payer}{\shortstack{Payer \\ + \\ \begin{tikzpicture} + \node [fill=gray!20,draw=black,thick,align=center] {Pre-funded \\ Wallet}; + \end{tikzpicture} + }} + \newinst[2]{exchange}{\shortstack{Taler (exchange) \\ + \\ \begin{tikzpicture}[shape aspect=.5] + \tikzset{every node/.style={cylinder,shape border rotate=90, draw,fill=gray!25}} + \node at (1.5,0) {\shortstack{{{\tiny Database}}}}; + \end{tikzpicture} + }} + \newinst[2]{payee}{\shortstack{Payee \\ + \\ \begin{tikzpicture} + \node [fill=gray!20,draw=black,thick,align=center] { Unique \\ Wallet ID}; + \end{tikzpicture} + }} + \postlevel + \begin{callself}{payee}{Review pull payment fees}{} + \end{callself} + \mess[0]{payee}{{Create invoice (Wallet ID)}}{exchange} + + \mess[0]{exchange}{{Invoice ready}}{payee} + \mess[0]{payee}{{Send invoice (e.g. via QR code)}}{payer} + + \begin{callself}{payer}{Review invoice}{} + \end{callself} + \mess[0]{payer}{{Make payment (Coins)}}{exchange} + + \begin{sdblock}{Domestic wallet?}{} + \begin{callself}{exchange}{Figure~\ref{fig:proc:domestic}}{} + \end{callself} + \end{sdblock} + \begin{sdblock}{KYC/AML required?}{} + \begin{callself}{exchange}{Figures~\ref{fig:proc:kyc}, \ref{fig:proc:aml}}{} + \end{callself} + \end{sdblock} + + \mess[0]{exchange}{{Distribute digital cash}}{payee} + +\end{sequencediagram} + \caption{Interactions between wallets and Taler exchange + in a pull payment.} + \label{fig:int:pull} +\end{figure} + +We do {\bf not} permit the payer to regain control over their funds, once the +payment was made they are locked {\em until} the payee passes the KYC/AML +checks. We only do the AML/KYC process once the funds are locked at the +exchange. This ensures we know the actual transacted amounts (which may be +lower than the total amounts requested) and prevents risk-free probing +attacks. |