| 摘要 |
An embedded picture can be embedded with secret embedded payloads. A method is disclosed for performing trusted binding between a first participant and a second participant based on RSA cryptosystem using the embedded picture having a first area assigned to the first participant for a first secret embedded payload, and a second area assigned to the second participant for a second secret embedded payload. Multiple payloads may be embedded in the embedded picture by multiple participants. Each payload can only be encrypted and decrypted by its corresponding participant. Multiple participants may form a trusted network, in the network each participant can be recognized and validated digitally. Accordingly, various activities such as transaction of digital credit card, verification of digital identification (ID) card, transaction of digital currency note may be performed using the trusted network |
| 主权项 |
1. A method for performing trusted binding among a plurality of participants including a first participant and a second participant, comprising:
providing an embedded picture having a plurality of areas for embedding embedded payloads, wherein a first area of the plurality of area is assigned to the first participant for a first embedded payload, and a second area of the plurality area is assigned to the second participant for a second embedded payload; establishing a secured two-way connection between the first participant and the second participant; and steps: the first participant generating a pair of RSA (Rivest Shamir Adleman) keys having a public key and a private key, creating a binding message, keeping the binding message, the public key, and the private key in the first embedded payload in the first area of the embedded picture; the first participant transferring the binding message and the public key to the second participant through the secured two-way connection; the second participant keeping the binding message and the public key received from the first participant in the second embedded payload in the second area of the embedded picture; the first participant creating a validating message, transferring the validating message to the second participant through the secured two-way connection; the second participant encrypting the received validating message and the received binding message using the received public key; the second participant transferring the encrypted validating message and binding message to the first participant through the secured two-way connection; the first participant decrypting the encrypted binding message and validating message received from the second participant using the private key, and checking the decrypted binding message and validating message against the binding message and validating message crated by the first participant. |
