CPC H04L 9/0618 (2013.01) [H04L 9/065 (2013.01); H04L 9/0816 (2013.01); H04L 9/0869 (2013.01)] | 18 Claims |
1. A method of low latency and encrypted hardware layer communication, the method comprising:
calculating, by an encryption circuit of a communication bridge controller of a device, one or more pre-calculated encryption keys corresponding to one or more block encryptors of the encryption circuit, each block encryptor configured to use a corresponding pre-calculated encryption key to encrypt a corresponding unencrypted data block of a data transmission having one or more unencrypted data blocks;
obtaining at least one initialization value corresponding to the block encryptor, wherein the calculating the pre-calculated encryption key further comprises calculating the pre-calculated encryption key based on the initialization value;
storing, by the encryption circuit, the one or more pre-calculated encryption keys in an encryption key memory associated with the communication bridge;
subsequent to the encryption circuit storing each pre-calculated encryption key into the encryption key memory, for each unencrypted data block:
encrypting, by the block encryptor corresponding to the unencrypted data block, the unencrypted data block using the corresponding pre-calculated encryption key to generate an encrypted data block and an authentication code block for the unencrypted data block; aggregating, by the encryption circuit, one or more encrypted data blocks into an encrypted data transmission; and generating, by the encryption circuit, an authenticated code corresponding to the encrypted data transmission based upon each of the authentication code blocks of each of the encrypted data blocks.
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