Wallet: added methods to sign and verify arbitrary message with multisig public signer's key (libwallet & wallet api)

1 files changed, 15 insertions, 0 deletions

diff --git a/src/wallet/api/wallet2_api.h b/src/wallet/api/wallet2_api.h
index d4e41c5aa..4f9d25957 100644
--- a/src/wallet/api/wallet2_api.h
+++ b/src/wallet/api/wallet2_api.h
@@ -747,6 +747,21 @@ struct Wallet
      */
     virtual bool verifySignedMessage(const std::string &message, const std::string &addres, const std::string &signature) const = 0;
 
+    /*!
+     * \brief signMultisigParticipant   signs given message with the multisig public signer key
+     * \param message                   message to sign
+     * \return                          signature in case of success. Sets status to Error and return empty string in case of error
+     */
+    virtual std::string signMultisigParticipant(const std::string &message) const = 0;
+    /*!
+     * \brief verifyMessageWithPublicKey verifies that message was signed with the given public key
+     * \param message                    message
+     * \param publicKey                  hex encoded public key
+     * \param signature                  signature of the message
+     * \return                           true if the signature is correct. false and sets error state in case of error
+     */
+    virtual bool verifyMessageWithPublicKey(const std::string &message, const std::string &publicKey, const std::string &signature) const = 0;
+
     virtual bool parse_uri(const std::string &uri, std::string &address, std::string &payment_id, uint64_t &amount, std::string &tx_description, std::string &recipient_name, std::vector<std::string> &unknown_parameters, std::string &error) = 0;
 
     virtual std::string getDefaultDataDir() const = 0;