EP1320009A3

Method and apparatus for securely storing a public key

Abstract

A method for securely storing a public key for encryption of data in a computing device uses a user-specific key pair which is securely stored in the computing device. A target public key corresponding to a target device is received and a user-specific key pair is obtained from a secure registry. A user-specific private key from the user-specific key pair is used to create a target key verifier based on the target public key. The target key verifier and the target public key are stored in a storage area. The target key verifier and the target public key are retrieved from the storage area and a user-specific public key from the user-specific key pair is applied to the target key verifier to verify the authenticity of the target public key. In the case that the authenticity of the target public key is verified, the data is encrypted with the target public key, thereby creating encrypted data for transmission to the target device.

EP1320009A3, drawing sheet 1
Sheet 1 of 1

Term

Term ended

Projected expiry passed 27 November 2022, 3.8 years ago.

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