TH26795A - Method of establishing a communication that uses a shared key. - Google Patents

Abstract

DC60 for the creation of cipher communication between users i, j using a shared cipher key.Each user i, j generates a shared cipher key using an identifier conversion algoritum and a secret private key. Which has been previously distributed from the center to the body Show of other users to communicate with (Step 3) In the field of random number transmission, one password-generated communication will be generated and encrypted. The combination of encryption keys and characters are normally encrypted by Use random number information And encrypted random number information And normal characters that are encrypted Will be included as communication letters The encrypted substance (step 4) in the field of receiving the encrypted random number. In characters, the encrypted communication will be decrypted using a shared key. And normal characters that are encrypted Will be decoded using the The random number decrypted is a key (step 5) for generating cipher communication between users i, j using a shared key, each using i, j generates a common cipher key using al. The character transformation goritum and secret private key, which have been previously distributed from the center to the body. Show other users To communicate with (step 3) in the field of random number transmission, cryptographic communication One pass Will be created and encrypted By means of a combination key, normal characters that are encrypted are combined into media letters. The encrypted substance (step 4) in the field of receiving the encrypted random number. In characters, the encrypted communication will be decrypted using a shared key. And normal characters that are encrypted Will be decoded using the A random number decrypted as a key (step 5)

Claims (1)

1. a method of establishing a communication to send and receive information Which is a shared key for encryption And decoding Communication information between users in the network, including The user group and the center consist of steps of Encryption of communication data with random number is key and random number data encryption. With a key Secret joint in the field of transmission And sending random numbers that have been entered The secret code along with the encrypted communication from the transmission side to the receiving side and decoding of the tagged random numbers: