Method sendOutOrStoreMyV3Pubkey

src/class_singleWorker.py:221–305

(self, hash)

    # assembles the pubkey and stores is in the pubkey table so that we can
    # send messages to "ourselves".
    def sendOutOrStoreMyV3Pubkey(self, hash): 
        try:
            myAddress = shared.myAddressesByHash[hash]
        except:
            #The address has been deleted.
            return
        if BMConfigParser().safeGetBoolean(myAddress, 'chan'):
            logger.info('This is a chan address. Not sending pubkey.')
            return
        status, addressVersionNumber, streamNumber, hash = decodeAddress(
            myAddress)
        
        TTL = int(28 * 24 * 60 * 60 + random.randrange(-300, 300))# 28 days from now plus or minus five minutes
        embeddedTime = int(time.time() + TTL)
        signedTimeForProtocolV2 = embeddedTime - TTL
        """
        According to the protocol specification, the expiresTime along with the pubkey information is
        signed. But to be backwards compatible during the upgrade period, we shall sign not the 
        expiresTime but rather the current time. There must be precisely a 28 day difference
        between the two. After the upgrade period we'll switch to signing the whole payload with the
        expiresTime time.
        """
        payload = pack('>Q', (embeddedTime))
        payload += '\x00\x00\x00\x01' # object type: pubkey
        payload += encodeVarint(addressVersionNumber)  # Address version number
        payload += encodeVarint(streamNumber)
        payload += protocol.getBitfield(myAddress)  # bitfield of features supported by me (see the wiki).

        try:
            privSigningKeyBase58 = BMConfigParser().get(
                myAddress, 'privsigningkey')
            privEncryptionKeyBase58 = BMConfigParser().get(
                myAddress, 'privencryptionkey')
        except Exception as err:
            logger.error('Error within sendOutOrStoreMyV3Pubkey. Could not read the keys from the keys.dat file for a requested address. %s\n' % err)

            return

        privSigningKeyHex = hexlify(shared.decodeWalletImportFormat(
            privSigningKeyBase58))
        privEncryptionKeyHex = hexlify(shared.decodeWalletImportFormat(
            privEncryptionKeyBase58))
        pubSigningKey = unhexlify(highlevelcrypto.privToPub(
            privSigningKeyHex))
        pubEncryptionKey = unhexlify(highlevelcrypto.privToPub(
            privEncryptionKeyHex))

        payload += pubSigningKey[1:]
        payload += pubEncryptionKey[1:]

        payload += encodeVarint(BMConfigParser().getint(
            myAddress, 'noncetrialsperbyte'))
        payload += encodeVarint(BMConfigParser().getint(
            myAddress, 'payloadlengthextrabytes'))
        
        signature = highlevelcrypto.sign(payload, privSigningKeyHex)
        payload += encodeVarint(len(signature))
        payload += signature