Add federated block-signing server implementation

contrib/federation/blocksign.sh

@@ -0,0 +1,96 @@
+#!/bin/bash
+
+BIN=$(dirname $0)/../../src/elements
+
+ADDR0=2dg8TR1BtYs1BJPLdjSpWnhDgadEDXxKRM7
+PK0=02febf482b566f37b7b8a624e3bcb708ff745daa37389bcc381ea207efaa84d85c
+SK0=cPpQ1dgHCiaPKmpCeuRBECfwaa5cJCj39n6j8vLmZ8ZgLJ6NQ4ce
+
+ADDR1=2dmHcVLR9xCbCnkVGAAaJyps5Ak7hPkNEWu
+PK1=039a70503f82b475f0388a0a187b4bef35f54d4e63e6ea235790f03ac070750b93
+SK1=cStpof1xJ6yvGhxMmxKrJPfV8D8V8VGgftJPffyZk8eaJmFWZMFR
+
+ADDR2=2dZwNCpB4xHqhexTavHdFXHjRRCLALpkYmm
+PK2=022ceed2aa5b56abf6765135daf8970bd0be44e890d0b493eb6efb824be6c29197
+SK2=cVNMk5uTaAFVRKQvEwSxd6hnuQdDoXJ5qpGsvVchmESuy6s9MPcd
+
+# 2-of-3 multisig
+SCRIPT=5221${PK0}21${PK1}21${PK2}53ae
+
+TMP=/tmp/blocksign.$$
+PORT0=38401
+PORT1=38402
+PORT2=38403
+RPCPORT0=38501
+RPCPORT1=38502
+RPCPORT2=38503
+
+echo Setting up nodes...
+mkdir -p ${TMP}/node0
+echo "validatepegin=0"                   > ${TMP}/node0/elements.conf
+echo "con_signed_blocks=1"              >> ${TMP}/node0/elements.conf
+echo "signblockscript=${SCRIPT}"        >> ${TMP}/node0/elements.conf
+echo "con_max_block_sig_size=150"       >> ${TMP}/node0/elements.conf
+echo "con_dyna_deploy_start=9999999999" >> ${TMP}/node0/elements.conf
+echo "blocksigner=1"                    >> ${TMP}/node0/elements.conf
+echo "debug=federation"                 >> ${TMP}/node0/elements.conf
+echo "debug=net"                        >> ${TMP}/node0/elements.conf
+mkdir -p ${TMP}/node1
+cp ${TMP}/node0/elements.conf \
+   ${TMP}/node1/elements.conf
+mkdir -p ${TMP}/node2
+cp ${TMP}/node0/elements.conf \
+   ${TMP}/node2/elements.conf
+echo "elementsregtest.port=${PORT0}"       >> ${TMP}/node0/elements.conf
+echo "elementsregtest.port=${PORT1}"       >> ${TMP}/node1/elements.conf
+echo "elementsregtest.port=${PORT2}"       >> ${TMP}/node2/elements.conf
+echo "elementsregtest.rpcport=${RPCPORT0}" >> ${TMP}/node0/elements.conf
+echo "elementsregtest.rpcport=${RPCPORT1}" >> ${TMP}/node1/elements.conf
+echo "elementsregtest.rpcport=${RPCPORT2}" >> ${TMP}/node2/elements.conf
+
+${BIN}d -datadir=${TMP}/node0 -chain=elementsregtest -daemon
+${BIN}d -datadir=${TMP}/node1 -chain=elementsregtest -daemon
+${BIN}d -datadir=${TMP}/node2 -chain=elementsregtest -daemon
+sleep 1
+
+echo Importing block-signing keys...
+${BIN}-cli -datadir=${TMP}/node0 -chain=elementsregtest createwallet "" >/dev/null
+${BIN}-cli -datadir=${TMP}/node0 -chain=elementsregtest importprivkey ${SK0}
+${BIN}-cli -datadir=${TMP}/node0 -chain=elementsregtest stop
+
+${BIN}-cli -datadir=${TMP}/node1 -chain=elementsregtest createwallet "" >/dev/null
+${BIN}-cli -datadir=${TMP}/node1 -chain=elementsregtest importprivkey ${SK1}
+${BIN}-cli -datadir=${TMP}/node1 -chain=elementsregtest stop
+
+${BIN}-cli -datadir=${TMP}/node2 -chain=elementsregtest createwallet "" >/dev/null
+${BIN}-cli -datadir=${TMP}/node2 -chain=elementsregtest importprivkey ${SK2}
+${BIN}-cli -datadir=${TMP}/node2 -chain=elementsregtest stop
+sleep 1
+
+echo Connecting nodes...
+echo "elementsregtest.blocksignnode=${PK1}:localhost:${PORT1}" >> ${TMP}/node0/elements.conf
+echo "elementsregtest.blocksignnode=${PK2}:localhost:${PORT2}" >> ${TMP}/node0/elements.conf
+echo "elementsregtest.blocksignnode=${PK0}:localhost:${PORT0}" >> ${TMP}/node1/elements.conf
+echo "elementsregtest.blocksignnode=${PK2}:localhost:${PORT2}" >> ${TMP}/node1/elements.conf
+echo "elementsregtest.blocksignnode=${PK0}:localhost:${PORT0}" >> ${TMP}/node2/elements.conf
+echo "elementsregtest.blocksignnode=${PK1}:localhost:${PORT1}" >> ${TMP}/node2/elements.conf
+
+echo "Watching logs..."
+${BIN}d -datadir=${TMP}/node0 -chain=elementsregtest -daemon
+${BIN}d -datadir=${TMP}/node1 -chain=elementsregtest -daemon
+${BIN}d -datadir=${TMP}/node2 -chain=elementsregtest -daemon
+
+xtail ${TMP}/node{0,1,2}/elementsregtest/debug.log
+
+echo ""
+echo "Cleaning up..."
+
+${BIN}-cli -datadir=${TMP}/node0 -chain=elementsregtest stop
+${BIN}-cli -datadir=${TMP}/node1 -chain=elementsregtest stop
+${BIN}-cli -datadir=${TMP}/node2 -chain=elementsregtest stop
+sleep 1
+rm -rf ${TMP}
+
+echo "Done!"
+
+# End of File

src/Makefile.am

@@ -143,6 +143,7 @@ BITCOIN_CORE_H = \
   cuckoocache.h \
   dbwrapper.h \
   dynafed.h \
+  federation.h \
   flatfile.h \
   fs.h \
   httprpc.h \
@@ -310,6 +311,7 @@ libbitcoin_server_a_SOURCES = \
   consensus/tx_verify.cpp \
   dynafed.cpp \
   dbwrapper.cpp \
+  federation.cpp \
   flatfile.cpp \
   httprpc.cpp \
   httpserver.cpp \