METHOD FOR SECURE COMMUNICATION USING ASYMMETRIC & SYMMETRIC ENCRYPTION OVER INSECURE COMMUNICATIONS

摘要

Data may be protected using a combination of symmetric and asymmetric cryptography. A symmetric key may be generated and the data may be encrypted with the symmetric key. The symmetric key and a only a portion of the symmetrically encrypted data may then be encrypted with an asymmetric public key. The entire set of encrypted data, including the asymmetrically encrypted symmetric key, the doubly encrypted portion of data, and the remainder of the symmetrically encrypted data may then be sent to a remote device using insecure communications.

主权项

1. A method of encrypting a set of data with a first computing device, the method comprising:
a) generating a symmetric key; b) encrypting the set of data with the symmetric key, thereby converting the set of data into a set of symmetrically encrypted data; and c) encrypting the symmetric key and a portion of the symmetrically encrypted data with a public key of an asymmetric key pair, thereby converting the symmetric key into an asymmetrically encrypted symmetric key, thereby converting the portion of the symmetrically encrypted data into a portion of doubly encrypted data, and thereby generating a total set of encrypted data, the total set of encrypted data comprising the asymmetrically encrypted symmetric key, the portion of doubly encrypted data, and a remainder of symmetrically encrypted data.