Abstract: A peer-to-peer transaction security method includes authentication and identification steps for pushing an encrypted colorgram from a transaction server to a first personal trusted device. Such provides a visual key for user authentication. Persona descriptors may be included for user identification. A decryption of the colorgram is displayed on the first personal trusted device to be optically captured by a second personal trusted device. The image captured from the second personal trusted device is encrypted and uploaded to the transaction server. In some cases, the persona descriptors alone are used to build a composite rendering for identification of the first user by the second user. The second user clicks and returns an acceptance if they recognize the composite drawing as a reasonable persona of the first user.

Abstract: A transaction security process includes authentication and identification parts for pushing an encrypted colorgram for user authentication and persona descriptors for user identification from a transaction server to a first personal trusted device. A decryption of the colorgram is displayed on the first personal trusted device. An image is captured by a second personal trusted device. An encryption of the image captured from the second personal trusted device is uploaded to the transaction server. The persona descriptors are used to build a composite rendering for identification of the first user to the second user. The second user clicks “OK” if they recognize the composite drawing as a reasonable persona of the first user.

Abstract: A transaction security process includes authentication and identification parts for pushing an encrypted colorgram for user authentication and persona descriptors for user identification from a transaction server to a first personal trusted device. A decryption of the colorgram is displayed on the first personal trusted device. An image is captured by a second personal trusted device. An encryption of the image captured from the second personal trusted device is uploaded to the transaction server. The persona descriptors are used to build a composite rendering for identification of the first user to the second user. The second user clicks “OK” if they recognize the composite drawing as a reasonable persona of the first user.