Systems and methods for preventing transmitted cryptographic parameters from compromising privacy

摘要

A method for secure cryptographic communication comprises transmitting information that identifies a group key from a first device to a second device. The method further comprises, in the first device, using the group key to encrypt an input vector, transmitting the encrypted input vector, encrypting privacy-sensitive information using a device key, an encryption algorithm, and the input vector, and transmitting the encrypted privacy-sensitive information to the second device.

主权项

1. A method for secure cryptographic communication, comprising:
transmitting plain text information that can be used to reference a group key from a first device to a second device in a first transmission; in the first device, using the group key to encrypt an input vector; in the first device, transmitting the encrypted input vector in a second transmission; in the first device, encrypting privacy-sensitive information using a device key, an encryption algorithm, and the input vector; and in the first device, transmitting the encrypted privacy-sensitive information to the second device in a third transmission.