1 files changed, 25 insertions, 0 deletions
diff --git a/src/models/crypto/pubkey.hpp b/src/models/crypto/pubkey.hpp
new file mode 100644
index 0000000..cb1f794
--- /dev/null
+++ b/src/models/crypto/pubkey.hpp
@@ -0,0 +1,25 @@
+extern "C" {
+
+#ifndef WG_KEY_LEN
+#define WG_KEY_LEN 32
+#endif
+
+#define WG_KEY_LEN_BASE64 ((((WG_KEY_LEN) + 2) / 3) * 4 + 1)
+#define WG_KEY_LEN_BASE32 (((WG_KEY_LEN + 4) / 5) * 8 + 1)
+
+/*
+ * wg_pubkey_base64 is a C++-compatible wrapper for the curve25519 public-key
+ * derivation routines used natively in `wg(8)`
+ *
+ * PRIVKEY: a c-style string containing the base64-encoded private key
+ * BASE32:  a c-style string of capacity WG_KEY_LEN_BASE64 containing the
+ * encoded public key
+ *
+ * returns: 0 on success
+ *          > 0 when an error occurs (due to improper key formatting)
+ */
+int wg_pubkey_base32(char const * privkey, char * base32);
+
+int wg_key_convert_base32(char const * base64, char * base32);
+
+}