diff --git a/src/key.h b/src/key.h
index e7c5a3e8a..999bc1e81 100644
--- a/src/key.h
+++ b/src/key.h
@@ -221,16 +221,26 @@ public:
 		return vchPrivKey;
 	}
 
-	bool SetPubKey(const std::vector<unsigned char>& vchPubKey)
+	bool SetPubKey(const void *ptr, size_t len)
 	{
-		const unsigned char* pbegin = &vchPubKey[0];
-		if (!o2i_ECPublicKey(&pkey, &pbegin, vchPubKey.size()))
+		const unsigned char* pbegin = static_cast<const unsigned char *>(ptr);
+		if (!o2i_ECPublicKey(&pkey, &pbegin, len))
 			return false;
 		EC_KEY_set_conv_form(pkey, POINT_CONVERSION_COMPRESSED);
 		fSet = true;
 		return true;
 	}
 
+	bool SetPubKey(const std::vector<unsigned char>& vchPubKey)
+	{
+		return SetPubKey(&vchPubKey[0], vchPubKey.size());
+	}
+
+	bool SetPubKey(const std::string& pubKey)
+	{
+		return SetPubKey(pubKey.data(), pubKey.size());
+	}
+
 	std::vector<unsigned char> GetPubKey() const
 	{
 		unsigned int nSize = i2o_ECPublicKey(pkey, NULL);