in src/main/scala/com/gu/ssm/utils/KeyMaker.scala [17:24]
def makeKey (privateKeyFile: File, algorithm: String, provider: String): String = {
Security.addProvider(new BouncyCastleProvider)
val keyPair = generateKeyPair(algorithm, provider)
val priv = keyPair.getPrivate
val pub = keyPair.getPublic
writePemFile(priv, "RSA PRIVATE KEY", privateKeyFile)
toAuthorizedKey(pub, "security_ssm-scala")
}