1 files changed, 46 insertions, 0 deletions
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..e6c66ae
--- /dev/null
+++ b/main.go
@@ -0,0 +1,46 @@
+package main
+
+import (
+	"crypto/rand"
+	"errors"
+	"flag"
+	"fmt"
+	"io"
+	"os"
+
+	"sauteed-onions.org/onion-csr/internal/options"
+	"sauteed-onions.org/onion-csr/pkg/ocsr"
+	"sauteed-onions.org/onion-csr/pkg/okey"
+)
+
+const entropyBytes = 10 // 80 bits
+
+func main() {
+	opts, err := options.New(os.Args[0], os.Args[1:])
+	if err != nil {
+		if errors.Is(err, flag.ErrHelp) {
+			os.Exit(0)
+		}
+
+		fmt.Fprintf(os.Stderr, "ERROR: %v\n", err)
+		os.Exit(1)
+	}
+
+	var applicantNonce [entropyBytes]byte
+	if _, err := io.ReadFull(rand.Reader, applicantNonce[:]); err != nil {
+		fmt.Fprintf(os.Stderr, "ERROR: %v\n", err)
+		os.Exit(1)
+	}
+	priv, err := okey.NewFromHSDir(opts.HSDir)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "ERROR: %v\n", err)
+		os.Exit(1)
+	}
+	csr, err := ocsr.New(priv, opts.CANonce, applicantNonce[:])
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "ERROR: %v\n", err)
+		os.Exit(1)
+	}
+
+	fmt.Fprintf(os.Stdout, "%s", csr)
+}