公开(公告)号：US11838424B2

公开(公告)日：2023-12-05

申请号：US17319732

申请日：2021-05-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kassem Kalach ,  Ali Abbassi ,  Teng Wu

IPC: H04L29/06 ,  G06F21/00 ,  H04L9/32 ,  H04L9/06 ,  H04L9/08

CPC classification number: H04L9/3242 ,  H04L9/0631 ,  H04L9/0637 ,  H04L9/0643 ,  H04L9/0656 ,  H04L9/0861

Abstract: A module has a processor for executing an encryption process to encrypt a message to a cipher-text with authentication. The encryption process includes generating a tag from a secret message authentication code (MAC) key, a nonce, a message, and optionally an additional data using a Poly1305 function, generating a pseudorandom initialization vector (IV) from a secret encryption key and the tag using a first encryption function, and generating a cipher-text from the secret encryption key, the generated IV, and the message using a second encryption function. The module or a similar module may execute a corresponding decryption process to decrypt the cipher-text to a decrypted message and verify the authenticity of the cipher-text. At least one of the first and second encryption functions may be an Advanced Encryption Standard (AES) encryption function such as an AES-CTR encryption function, an AES-like encryption function, and/or other suitable encryption functions.