diff --git a/README.md b/README.md
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+# openSSL-DICE
+Simulated implementation of DICE based on microsoft paper on dice n riot. initial implementation, later to be implemented on Jetson Xavior
+
+
+Step 1 - skeletal setup
+
+sketch roadmap of dataflow,
+lable functions,
+locate input and output DS,
+find appropriate openssl fns,
+
+
+
+Step 2 - codify
+
+use static value for ids, eg UDS, FW,
+
+
+
+
+Step 3 - replace static IDs with real values
+
+use real values from device? use rng?
diff --git a/trial1/fun1.c b/trial1/fun1.c
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+++ b/trial1/fun1.c
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+#include "fun1.h"
+
+int fun1()
+{
+	printf("Hello from FN1\n");
+//	fun2();
+	return 0;
+}
diff --git a/trial1/fun1.h b/trial1/fun1.h
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--- /dev/null
+++ b/trial1/fun1.h
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+#include <stdio.h>
+
+
+
+int fun1();
diff --git a/trial1/include/fun2.c b/trial1/include/fun2.c
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+++ b/trial1/include/fun2.c
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+#include "fun2.h"
+
+int fun2()
+{
+	printf("Hello from FN2\n");
+	return 0;
+}
+
diff --git a/trial1/include/fun2.h b/trial1/include/fun2.h
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index 0000000..77ca2fd
--- /dev/null
+++ b/trial1/include/fun2.h
@@ -0,0 +1 @@
+int fun2();
diff --git a/trial1/main b/trial1/main
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diff --git a/trial1/main.c b/trial1/main.c
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--- /dev/null
+++ b/trial1/main.c
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+#include "fun1.h"
+
+int main()
+{
+	printf("Hello World\n");
+	fun1();
+	return 0;
+}
+
diff --git a/trial1/makefile b/trial1/makefile
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--- /dev/null
+++ b/trial1/makefile
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+CC=gcc
+IDIR=./include
+LDIR=./lib
+ODIR=./out
+_DEPS = fun1.h
+DEPS = $(pathsbst %,(IDIR)/%,%(_DEPS))
+
+
+CFLAGS= -I. -T$(IDIR)
+
+
+.PHONY: all clean
+
+all: main.c fun1.c
+	${CC} -o $(ODIR)/main2 main.c fun1.c
+
+clean: 
+	rm -r $(ODIR)/*
+	rm -r ./keys/*
diff --git a/trial1/out/main2 b/trial1/out/main2
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diff --git a/trial2/include/hellomake.h b/trial2/include/hellomake.h
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--- /dev/null
+++ b/trial2/include/hellomake.h
@@ -0,0 +1 @@
+void myPrintHelloMake(void);
diff --git a/trial2/src/hellofunc.c b/trial2/src/hellofunc.c
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--- /dev/null
+++ b/trial2/src/hellofunc.c
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+#include <stdio.h>
+#include <hellomake.h>
+
+void myPrintHelloMake(void) {
+
+  printf("Hello makefiles!\n");
+
+  return;
+}
diff --git a/trial2/src/hellomake b/trial2/src/hellomake
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diff --git a/trial2/src/hellomake.c b/trial2/src/hellomake.c
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index 0000000..3d673b7
--- /dev/null
+++ b/trial2/src/hellomake.c
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+#include <hellomake.h>
+
+int main() {
+  // call a function in another file
+  myPrintHelloMake();
+
+  return(0);
+}
diff --git a/trial2/src/makefile b/trial2/src/makefile
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--- /dev/null
+++ b/trial2/src/makefile
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+IDIR =../include
+CC=gcc
+CFLAGS=-I$(IDIR)
+
+ODIR=obj
+LDIR =../lib
+
+LIBS=-lm
+
+_DEPS = hellomake.h
+DEPS = $(patsubst %,$(IDIR)/%,$(_DEPS))
+
+_OBJ = hellomake.o hellofunc.o 
+OBJ = $(patsubst %,$(ODIR)/%,$(_OBJ))
+
+
+$(ODIR)/%.o: %.c $(DEPS)
+	$(CC) -c -o $@ $< $(CFLAGS)
+
+hellomake: $(OBJ)
+	$(CC) -o $@ $^ $(CFLAGS) $(LIBS)
+
+.PHONY: clean
+
+clean:
+	rm -f $(ODIR)/*.o *~ core $(INCDIR)/*~ 
diff --git a/trial2/src/obj/hellofunc.o b/trial2/src/obj/hellofunc.o
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diff --git a/trial2/src/obj/hellomake.o b/trial2/src/obj/hellomake.o
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