Add windows ini support, allow default use of SecureRandom(), fix stack size setting on Linux

Author: mcsherrylabs

src/main/resources/application.conf

@@ -19,7 +19,8 @@ grothendieck {
 
   # one of the algorithms defined here:
   # https://docs.oracle.com/javase/8/docs/technotes/guides/security/StandardNames.html#SecureRandom
-  secure-random-algo = "NativePRNG"
+  # Uncomment this to specify, otherwise use the default 'strong' implementation
+  # secure-random-algo = "NativePRNG"
 
   network {
     # Ethereum protocol version

src/main/scala/io/iohk/ethereum/nodebuilder/NodeBuilder.scala

@@ -406,7 +406,8 @@ trait GenesisDataLoaderBuilder {
 }
 
 trait SecureRandomBuilder {
-  lazy val secureRandom: SecureRandom = SecureRandom.getInstance(Config.secureRandomAlgo)
+  lazy val secureRandom: SecureRandom =
+    Config.secureRandomAlgo.map(SecureRandom.getInstance(_)).getOrElse(new SecureRandom())
 }
 
 trait Node extends NodeKeyBuilder

src/main/scala/io/iohk/ethereum/utils/Config.scala

@@ -31,7 +31,9 @@ object Config {
 
   val shutdownTimeout: Duration = config.getDuration("shutdown-timeout").toMillis.millis
 
-  val secureRandomAlgo: String = config.getString("secure-random-algo")
+  val secureRandomAlgo: Option[String] =
+    if(config.hasPath("secure-random-algo")) Some(config.getString("secure-random-algo"))
+    else None
 
   object Network {
     private val networkConfig = config.getConfig("network")

src/universal/conf/application.ini

@@ -1 +1 @@
--Dconfig.file=./conf/grothendieck.conf -Dlogback.configurationFile=./conf/logback.xml -Xss10M
+-Dconfig.file=./conf/grothendieck.conf -Dlogback.configurationFile=./conf/logback.xml -J-Xss10M

src/universal/etc_client_config.txt

@@ -0,0 +1,3 @@
+-Dconfig.file=.\conf\grothendieck.conf
+-Dlogback.configurationFile=.\conf\logback.xml
+-Xss10M