lib: rsa: RSAPub: add N method

Returns `n`.

1 files changed, 4 insertions, 0 deletions

diff --git a/lib/rsa.go b/lib/rsa.go
index 1a860eb..ae264b8 100644
--- a/lib/rsa.go
+++ b/lib/rsa.go
@@ -138,6 +138,10 @@ func (r *RSAPub) Encrypt(msg []byte) []byte {
 	return c.Bytes()
 }
 
+func (r *RSAPub) N() *big.Int {
+	return r.n
+}
+
 func (r *RSAPrivate) Decrypt(cipher []byte) []byte {
 	// Convert cipher to big int.
 	c := big.NewInt(0).SetBytes(cipher)