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feat: authenticate the ZMQ bus with CURVE - #429
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DaniilSmirnov wants to merge 1 commit into
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DaniilSmirnov wants to merge 1 commit into
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Anyone who could reach the proxy ROUTER (7110, published by docker-compose-prod.yaml) or the processor ROUTER (7160) could send any wire message, shell commands to devices included. With ZMQ_SECRET set, every ROUTER/DEALER created through lib/util/zmqsocket runs CURVE. Both keypairs are derived from the secret, so nothing else has to be distributed: a DEALER needs the server key to finish the handshake, and a ZAP handler on the ROUTER side accepts only the client key. Traffic is encrypted as well. Without ZMQ_SECRET the bus works as before, and a ROUTER bound to a non-local address logs a warning.
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Anyone who could reach the proxy ROUTER (7110, published by docker-compose-prod.yaml) or the processor ROUTER (7160) could send any wire message, shell commands to devices included.
With ZMQ_SECRET set, every ROUTER/DEALER created through lib/util/zmqsocket runs CURVE. Both keypairs are derived from the secret, so nothing else has to be distributed: a DEALER needs the server key to finish the handshake, and a ZAP handler on the ROUTER side accepts only the client key. Traffic is encrypted as well.
Without ZMQ_SECRET the bus works as before, and a ROUTER bound to a non-local address logs a warning.