Dynamic barcode ticketing carrying encrypted validation transactions

A method of conducting a secure ticketing transaction by authenticating a transit customer's identity, the method comprising:

• receiving, by a first media reader at a first location within a transit system, a key for performing encryption or decryption of data;
• reading, by the first media reader from a display of a mobile communication device of a transit customer, an encrypted first barcode to obtain encrypted first barcode data;
• decrypting, by the first media reader using the key, the encrypted first barcode data to obtain first barcode data, the first barcode data indicating a request of the transit customer to enter the transit system at the first location;
• generating, by the first media reader, second barcode data indicating entry information;
• encrypting, by the first media reader using the key, the second barcode data to obtain encrypted second barcode data;
• displaying, by the first media reader, an encrypted second barcode containing the encrypted second barcode data;
• allowing the transit customer to enter the transit system at the first location;
• reading, by a second media reader at a second location within the transit system from the display of the mobile communication device, an encrypted fourth barcode to obtain encrypted fourth barcode data;
• decrypting, by the second media reader using the key, the encrypted fourth barcode data to obtain fourth barcode data, the fourth barcode data indicating the entry information and a request of the transit customer to exit the transit system at the second location;
• calculating a fare based on the first location and the second location;
• and
• allowing the transit customer to exit the transit system at the second location.

A non-transitory computer-readable medium comprising instructions that, when executed by one or more processors, cause the one or more processors to perform operations comprising:

• receiving, by a first media reader at a first location within a transit system, a key for performing encryption or decryption of data;
• reading, by the first media reader from a display of a mobile communication device of a transit customer, an encrypted first barcode to obtain encrypted first barcode data;
• decrypting, by the first media reader using the key, the encrypted first barcode data to obtain first barcode data, the first barcode data indicating a request of the transit customer to enter the transit system at the first location;
• generating, by the first media reader, second barcode data indicating entry information;
• encrypting, by the first media reader using the key, the second barcode data to obtain encrypted second barcode data;
• displaying, by the first media reader, an encrypted second barcode containing the encrypted second barcode data;
• allowing the transit customer to enter the transit system at the first location;
• reading, by a second media reader at a second location within the transit system from the display of the mobile communication device, an encrypted fourth barcode to obtain encrypted fourth barcode data;
• decrypting, by the second media reader using the key, the encrypted fourth barcode data to obtain fourth barcode data, the fourth barcode data indicating the entry information and a request of the transit customer to exit the transit system at the second location;
• calculating a fare based on the first location and the second location;
• and
• allowing the transit customer to exit the transit system at the second location.