Security system for handheld wireless devices using time-variable encryption keys
First Claim
1. A portable wireless personal communication system for cooperating with a remote certification authority to generate time variable secure key information and to generate time variable secure key information and to employ the time variable secure key information pursuant to a predetermined encryption algorithm to facilitate secure encrypted communication, comprising:
- a. a key generating component having an external configuration suitable to be mounted on an individual'"'"'s body for wirelessly transmitting a key signal within the immediate proximity of the individual'"'"'s body when the key generating component is mounted on the individual'"'"'s body, wherein the key signal comprises secret key information corresponding to the time variable secure key information to facilitate secure wireless communication in accordance with the predetermined encryption algorithm, wherein the secret key information is changed by the key generating component in coordination with changes in the time variable secure key generated by the remote certificate authority; and
b. a handheld wireless component, physically separated from the key generating component, and having an external configuration suitable to be held by a hand of a user to (a) wirelessly receive the key signal transmitted by the key generating component only when within the immediate proximity of the key generating component, (b) use the secret key information included in the key signal to encrypt a message in accordance with the predetermined encryption algorithm, and (c) transmit the encrypted message via a wireless link that forms part of a communication channel connected at one end to said handheld wireless component and connected at the other end to a third party that has communicated with the remote certification authority in accordance with the encryption algorithm, wherein the portable wireless personal communication system is adapted to operate with the remote certification authority that implements a Public Key Infrastructure (PKI) type encryption algorithm, wherein the remote certification authority authenticates the individual on whose body is mounted the key generating component, a sequential series of public keys corresponding one to one to a sequential series of secret keys generated from time to time by said key generating component in accordance with a predetermined PKI key generation algorithm and wherein the key signal broadcast by said key generating component is the secret key corresponding to the public key used by the remote certification authority to facilitate secure communication between third parties and the individual who has been authenticated by the remote certification authority.
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Abstract
In one embodiment, the invention provides a portable wireless personal communication system for cooperating with a remote certification authority to employ time variable secure key information pursuant to a predetermined encryption algorithm to facilitate convenient, secure encrypted communication. The disclosed system includes a wireless handset, such as PDA, smartphone, cellular telephone or the like, characterized by a relatively robust data processing capability and a body mounted key generating component which is adapted to be mounted on an individual'"'"'s body, in a permanent or semi-permanent manner, for wirelessly broadcasting, within the immediate proximity of the individual, a secret or private key identifying signal corresponding to a time variable secure key information under the control of the certification authority. The key identifying signal is generated in a format that facilitates secure wireless communication with the individual in accordance with a predetermined encryption algorithm including a PKI encryption algorithm. The disclosed system may be used with a console for coordinating access to a variety of different communication system and networks.
41 Citations
14 Claims
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1. A portable wireless personal communication system for cooperating with a remote certification authority to generate time variable secure key information and to generate time variable secure key information and to employ the time variable secure key information pursuant to a predetermined encryption algorithm to facilitate secure encrypted communication, comprising:
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a. a key generating component having an external configuration suitable to be mounted on an individual'"'"'s body for wirelessly transmitting a key signal within the immediate proximity of the individual'"'"'s body when the key generating component is mounted on the individual'"'"'s body, wherein the key signal comprises secret key information corresponding to the time variable secure key information to facilitate secure wireless communication in accordance with the predetermined encryption algorithm, wherein the secret key information is changed by the key generating component in coordination with changes in the time variable secure key generated by the remote certificate authority; and b. a handheld wireless component, physically separated from the key generating component, and having an external configuration suitable to be held by a hand of a user to (a) wirelessly receive the key signal transmitted by the key generating component only when within the immediate proximity of the key generating component, (b) use the secret key information included in the key signal to encrypt a message in accordance with the predetermined encryption algorithm, and (c) transmit the encrypted message via a wireless link that forms part of a communication channel connected at one end to said handheld wireless component and connected at the other end to a third party that has communicated with the remote certification authority in accordance with the encryption algorithm, wherein the portable wireless personal communication system is adapted to operate with the remote certification authority that implements a Public Key Infrastructure (PKI) type encryption algorithm, wherein the remote certification authority authenticates the individual on whose body is mounted the key generating component, a sequential series of public keys corresponding one to one to a sequential series of secret keys generated from time to time by said key generating component in accordance with a predetermined PKI key generation algorithm and wherein the key signal broadcast by said key generating component is the secret key corresponding to the public key used by the remote certification authority to facilitate secure communication between third parties and the individual who has been authenticated by the remote certification authority. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 14)
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11. A portable wireless personal communication system for cooperating with a remote certification authority to generate time variable secure key information and to employ the time variable secure key information pursuant to a predetermined encryption algorithm to facilitate secure encrypted communication, comprising:
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a. a key generating component having an external configuration suitable to be mounted on an individual'"'"'s body for wirelessly transmitting a key signal within the immediate proximity of the individual'"'"'s body when the key generating component is mounted on the individual'"'"'s body, wherein the key signal comprises secret key information corresponding to the time variable secure key information to facilitate secure wireless communication in accordance with the predetermined encryption algorithm, wherein the secret key information is changed by the key generating component in coordination with changes in the time variable secure key generated by the remote certificate authority; and b. a handheld wireless component, physically separated from the key generating component, and having an external configuration suitable to be held by a hand of a user to (a) wirelessly receive the key signal transmitted by the key generating component only when within the immediate proximity of the key generating component, (b) use the secret key information included in the key signal to encrypt a message in accordance with the predetermined encryption algorithm, and (c) transmit the encrypted message via a wireless link that forms part of a communication channel connected at one end to said handheld wireless component and connected at the other end to a third party that has communicated with the remote certification authority in accordance with the encryption algorithm, wherein said key generating component includes a processor adapted to generate a time variable key that corresponds to the time variable secure key information held by the remote certification authority; wherein said key generating component includes a radio transmitter for broadcasting the time variable key within a zone in close proximity to the individual on whose body said key generating component is mounted and said key generating component includes encrypting means for broadcasting the time variable key in an encrypted form and further wherein said hand held wireless component includes decrypting means for recovering the time variable key from the signal broadcasted by said key generating component. - View Dependent Claims (12, 13)
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Specification