Systems and methods for securing communication data and property using blockchain

A method for granting access to property to a user of an electronic key, the method comprising:

• receiving, by an electronic key, an encrypted code from a mobile computer;
• transmitting, by the electronic key, the encrypted code to a validator running on a property computer via wireless communication;
• determining, by the validator, whether the encrypted code is valid;
• granting access to the property when it is determined that the encrypted code is valid;
• denying access to the property when it is determined that the encrypted code is invalid;
• in response to the validator determining that the encrypted code is valid or invalid, transmitting, by the property computer, an access message to the electronic key and a first access log message to the mobile computer, wherein the first access log message causes the mobile computer to transmit a second access log message to a server;
• and
• in response to receiving, by the server, the second access log message, updating, by the server, an access log of the electronic key in a hyper ledger stored on the server.