connect to host requiring ssh-rsa

[lilactown]

I am trying to connect to a host. When I try to connect, I receive the error com.jcraft.jsch.JSchException: Session.connect: java.io.IOException: End of IO Stream Read.

$ cat script
(ssh {:hostname "10.11.99.1"
      :username "root"
      :identity "~/.ssh/id_rsa_remarkable"
      :passphrase ""}
  (get-fact))
$ spire script
Exception in thread "main" com.jcraft.jsch.JSchException: Session.connect: java.io.IOException: End of IO Stream Read
	at com.jcraft.jsch.Session.connect(Session.java:570)
	at com.jcraft.jsch.Session.connect(Session.java:185)
	at spire.transport$connect.invokeStatic(transport.clj:34)
	at spire.transport$open_connection$fn__12677.invoke(transport.clj:56)
	at clojure.core$update.invokeStatic(core.clj:6185)
	at clojure.core$update.invoke(core.clj:6177)
	at clojure.lang.Atom.swap(Atom.java:65)
	at clojure.core$swap_BANG_.invokeStatic(core.clj:2358)
	at spire.transport$open_connection.invokeStatic(transport.clj:51)
	at spire.transport$open_connection.invoke(transport.clj:50)
	at sci.impl.vars.SciVar.invoke(vars.cljc:325)
	at sci.impl.analyzer$return_call$reify__4565.eval(analyzer.cljc:1149)
	at sci.impl.evaluator$eval_let$fn__2076.invoke(evaluator.cljc:65)
	at sci.impl.evaluator$eval_let.invokeStatic(evaluator.cljc:56)
	at sci.impl.analyzer$analyze_let_STAR_$reify__4237.eval(analyzer.cljc:492)
	at sci.impl.evaluator$eval_try.invokeStatic(evaluator.cljc:125)
	at sci.impl.analyzer$analyze_try$reify__4320.eval(analyzer.cljc:741)
	at sci.impl.evaluator$eval_let.invokeStatic(evaluator.cljc:74)
	at sci.impl.analyzer$analyze_let_STAR_$reify__4237.eval(analyzer.cljc:492)
	at sci.impl.interpreter$eval_form.invokeStatic(interpreter.cljc:39)
	at sci.impl.interpreter$eval_string_STAR_.invokeStatic(interpreter.cljc:61)
	at sci.core$eval_string_STAR_.invokeStatic(core.cljc:235)
	at spire.eval$evaluate.invokeStatic(eval.clj:87)
	at spire.core$_main.invokeStatic(core.clj:85)
	at spire.core$_main.doInvoke(core.clj:59)
	at clojure.lang.RestFn.applyTo(RestFn.java:137)
	at spire.core.main(Unknown Source)
Caused by: java.io.IOException: End of IO Stream Read
	at com.jcraft.jsch.IO.getByte(IO.java:85)
	at com.jcraft.jsch.Session.read(Session.java:1175)
	at com.jcraft.jsch.Session.connect(Session.java:328)
	... 26 more

I did a bit of research and I see that this project uses a fork of jsch which followed OpenSSH's move to deprecate ssh-rsa. My hunch is that this could be related to the connection issues.

However, trying to follow their guidance does not lead to any different behavior:

$ cat script
(ssh {:hostname "10.11.99.1"
      :username "root"
      :identity "~/.ssh/id_rsa_remarkable"
      :passphrase ""
      :jsch-options {:server-host-key-fn (fn [s] (str s ",ssh-rsa"))}}
  (get-fact))
$ spire script
Exception in thread "main" com.jcraft.jsch.JSchException: Session.connect: java.io.IOException: End of IO Stream Read
	at com.jcraft.jsch.Session.connect(Session.java:570)
...

Any advice/guidance is appreciated