Method and apparatus for forming security channel in short range communication
AssigneeSamsung Electronics Co., Ltd.
InventorsTae-Shik Shon, Yong-Suk Park, Jeong-Sik In
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Abstract
A channel connection of a device that performs short range wireless communication is provided. If a public key that is broadcast by a specified device is received, the device encrypts its own UID (Unique Identifier) using the public key to transmit the encrypted UID to the specified device, transmits a pairing request to the specified device, and safely receives a key seed from the specified device using a security address included in a pairing device and the UID to form a security channel with the specified device.
Claims20
A method of forming a channel in short range wireless communication, comprising the steps of:
- receiving, by a control device, a public key that is broadcast by a target device;
- encrypting, by the control device, its own UID (Unique Identifier) using the public key and transmitting the encrypted UID to the target device;
- transmitting, by the control device, a pairing request to the target device;
- receiving, by the control device, a pairing response corresponding to the pairing request;
- safely receiving a key seed from the target device using a security address included in the pairing response and the UID;
- and
- generating, by the control device, a link key using the received key seed and forming a security channel with the target device.
A method of forming a channel in short range wireless communication, comprising the steps of:
- broadcasting a public key by a target device;
- receiving, by the target device, a UID (Unique Identifier) encrypted using the public key from a control device;
- receiving, by the target device, a pairing request from the control device;
- making, by the target device, a security address that corresponds to the control device included in a pairing response and transmitting the pairing response to the control device;
- generating, by the target device, a key seed and safely transmitting the key seed to the control device using the security address and the UID;
- and
- generating, by the target device, a link key using the key seed and forming a security channel with the control device.
An apparatus for forming a channel of a control device that performs short range wireless communication, comprising:
- a short range transmission/reception unit performing the short range wireless communication;
- and
- a processor controlling the short range transmission/reception unit to receive a public key that is broadcast by a target device, encrypting its own UID (Unique Identifier) using the public key and transmitting the encrypted UID to the target device, transmitting a pairing request to the target device, receiving, by the control device, a pairing response corresponding to the pairing request, safely receiving a key seed from the target device using a security address included in the pairing response and the UID, and generating a link key using the received key seed to form a security channel with the target device.
An apparatus for forming a channel of a target device that performs short range wireless communication, comprising:
- a short range transmission/reception unit performing the short range wireless communication;
- and
- a processor controlling the short range transmission/reception unit to broadcast a public key, receiving a UID (Unique Identifier) encrypted using the public key from a control device, if a pairing request is received from the control device, making a security address that corresponds to the control device included in a pairing response and transmitting the pairing response to the control device, generating a key seed, safely transmitting the key seed to the control device using the security address and the UID, and generating a link key using the key seed to form a security channel with the control device.
Dependencies are inferred from the claim text.