diff --git a/cmd/tkey-sign/main.go b/cmd/tkey-sign/main.go
index e73f82f..d40ac76 100644
--- a/cmd/tkey-sign/main.go
+++ b/cmd/tkey-sign/main.go
@@ -288,6 +288,13 @@ func GetKey(keyFn string, overwrite bool, dev devArgs, uss USSArgs) error {
 		err = writeRetry(keyFn, &pubkey, comment)
 	}
 
+	if err != nil {
+		return fmt.Errorf("%w", err)
+	}
+	// Proof of concept.
+	binPath := keyFn + ".bin"
+	err = pubkey.ToFileRaw(binPath, true)
+
 	if err != nil {
 		return fmt.Errorf("%w", err)
 	}
diff --git a/signify/signify.go b/signify/signify.go
index 744828a..8befc45 100644
--- a/signify/signify.go
+++ b/signify/signify.go
@@ -140,6 +140,10 @@ func (p *PubKey) ToFile(fileName string, comment string, overwrite bool) error {
 	return writeFile(fileName, buf, overwrite)
 }
 
+func (p *PubKey) ToFileRaw(fileName string, overwrite bool) error {
+	return writeFile(fileName, p[:], overwrite)
+}
+
 // NewSignature instantiates a signify Signature from a byte slice.
 func NewSignature(t AlgType, srcSig []byte) (Signature, error) {
 	var sig Signature