diff --git a/scripts/setup-hw-ssh.sh b/scripts/setup-hw-ssh.sh
index e9ccd676..ed43f680 100755
--- a/scripts/setup-hw-ssh.sh
+++ b/scripts/setup-hw-ssh.sh
@@ -8,23 +8,32 @@
 # set up ssh for access to UNSW machine queue
 
 mkdir -p ~/.ssh
-echo "login.trustworthy.systems ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBD111xPT6mKt1s+wJvXIGwUXaebbM/B1GE7ztMUgKBqySbO/5AXXFUr/xflvSluH3lYG5tTpGwPYbJyHOmnJGLY=" >> ~/.ssh/known_hosts
-echo "tftp.keg.cse.unsw.edu.au ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBEj7X6doSoop91gTvBD7L4O7VGwCO5pLNsu5YAGS1L64MJqo+3wTYgFRdMWTM0hL3YN+1sSabJPICJzKk0EJxkg=" >> ~/.ssh/known_hosts
+cat >> ~/.ssh/known_hosts <<\EOF
+login.trustworthy.systems ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBD111xPT6mKt1s+wJvXIGwUXaebbM/B1GE7ztMUgKBqySbO/5AXXFUr/xflvSluH3lYG5tTpGwPYbJyHOmnJGLY=
+login.trustworthy.systems ssh-rsa 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
+login.trustworthy.systems ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINn1vg1dwyMuDFVWdUqoIRmOHv9FdbCZ4q+0zDY/xTJN
+login.trustworthy.systems ssh-rsa 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
+login.trustworthy.systems ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBCRA/W8LVxLFjzPvijygdSw+rPW/EQEG8WoUVcTm5dYXDIhCc0Zxibd19zPb1LQpE2/Ohe+I16iC5glpmFyDfrs=
+login.trustworthy.systems ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPYp/3vDMDnHnjtqt5Oqievgz04g/LJ4yEKOlXCu9Yux
+tftp.keg.cse.unsw.edu.au ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBEj7X6doSoop91gTvBD7L4O7VGwCO5pLNsu5YAGS1L64MJqo+3wTYgFRdMWTM0hL3YN+1sSabJPICJzKk0EJxkg=
+EOF
 
-echo "Host *" >> ~/.ssh/config
-echo "ServerAliveInterval 30" >> ~/.ssh/config
-echo "ControlMaster auto" >> ~/.ssh/config
-echo "ControlPath ~/.ssh/%r@%h:%p-${GITHUB_RUN_ID}-${GITHUB_JOB}-${INPUT_INDEX}" >> ~/.ssh/config
-echo "ControlPersist 15" >> ~/.ssh/config
-echo >> ~/.ssh/config
-echo "Host ts" >> ~/.ssh/config
-echo "Hostname login.trustworthy.systems" >> ~/.ssh/config
-echo "User sel4_ci" >> ~/.ssh/config
-echo >> ~/.ssh/config
-echo "Host tftp.keg.cse.unsw.edu.au" >> ~/.ssh/config
-echo "User sel4_ci" >> ~/.ssh/config
-echo "ProxyJump ts" >> ~/.ssh/config
-echo >> ~/.ssh/config
+cat >> ~/.ssh/config <<EOF
+Host *
+  ServerAliveInterval 30
+  ControlMaster auto
+  ControlPath ~/.ssh/%r@%h:%p-${GITHUB_RUN_ID}-${GITHUB_JOB}-${INPUT_INDEX}
+  ControlPersist 15
+
+Host ts
+  Hostname login.trustworthy.systems
+  User sel4_ci
+
+Host tftp.keg.cse.unsw.edu.au
+  User sel4_ci
+  ProxyJump ts
+
+EOF
 
 eval $(ssh-agent)
 ssh-add -q - <<< "${HW_SSH}"