Secure two party matching transaction system

An arrangement adapted to identify a purchaser and a retailer point of sale, and performing a secure electronic payment between said purchaser and said retailer, whereby said purchaser has a mobile device comprising a at least one of a camera, a radio frequency receiver, and a radio transmitter utilized to conduct a purchase, comprising:

• an account aware transaction system to be utilized to communicate with both said point of sale, and said purchaser, said transaction system being adapted to settles transfer of payment from said purchaser to said retailer, said point of sale arranged to communicate through at least one of a wired first channel, and a wireless first channel of communication, and said mobile device arranged to communicate with the transaction system via a second wireless radio channel whereby transaction signals can be communicated with the transaction system through different channels of communication;
• means in said transaction system adapted to provide each single purchase with a unique reference identity;
• a tag placed at said point of sale and recording a unique identity of the point of sale in a form readable by the mobile device camera and/or radio frequency receiver;
• said adapted mobile device operable by said purchaser to read the unique identity of the point of sale by means of the camera photographing, and/or radio frequency receiver, reading the point of sale unique identity from the tag;
• said mobile device adapted to execute software code to generate at least one signed mobile device message and transmit the mobile device message to said transaction system through said second channel, said mobile device message comprising the identity of said point of sale and said identity of said mobile device in response to reading the point of sale unique identity;
• said point of sale adapted to automatically generate, by prompting, at least one point of sale message, and to transmit said at least one message on said first channel, said at least one message comprising at least the identity of the point of sale and the sum to be paid by said purchaser;
• said transaction system responsive to receiving the mobile device message and the encrypted point of sale message to match the messages when the respective message parts identifying the point of sale are similar;
• and
• said transaction system responsive to matching the messages to prompt said mobile device for purchaser approval of the transaction including the sum to be paid said mobile device adapted to respond to purchaser approval to transmit to said transaction system a go-ahead signal whereby the purchasers particulars remain anonymous to said point of sale, but both said point of sale and said purchasers identity are known by said transaction system;
• said transaction system responsive to the go-ahead signal to settle the payment by withdrawing payment from said purchaser, and crediting the payment to an account relating to said point of sale for said unique transaction reference provided to a single purchase.