公开(公告)号：US20180123792A1

公开(公告)日：2018-05-03

申请号：US15619151

申请日：2017-06-09

Applicant: BEIJING BAIDU NETCOM SCIENCE AND TECHNOLOGY CO., LTD.

Inventor： Yichen TU ,  Wei QI ,  Yong WANG

IPC: H04L9/30 ,  H04L9/06

CPC classification number: H04L9/30 ,  G09C1/00 ,  H04L9/06 ,  H04L9/0618 ,  H04L9/302 ,  H04L2209/12

Abstract: The present application discloses an RSA decryption processor and a method for controlling an RSA decryption processor. A specific implementation of the processor includes a memory, a control component, and a parallel processor. The memory is configured to store decryption parameters comprising a private key. The control component is configured to receive a ciphertext set, and send a decryption signal comprising the ciphertext set to the parallel processor. The parallel processor is configured to: read a decryption parameter from the memory in response to receiving the decryption signal, and use at least one modular exponentiation circuit unit in the parallel processor to perform in parallel a modular exponentiation operation on ciphertexts in the ciphertext set by using the read decryption parameter, to obtain plaintexts corresponding to the ciphertexts. This implementation improves the efficiency of RSA decryption.

公开(公告)号：US20180124023A1

公开(公告)日：2018-05-03

申请号：US15618655

申请日：2017-06-09

Applicant: BEIJING BAIDU NETCOM SCIENCE AND TECHNOLOGY CO., LTD.

Inventor： Wei QI ,  Jian OUYANG ,  Yong WANG ,  Yichen TU ,  Sijie YANG

IPC: H04L29/06 ,  H04L9/06

CPC classification number: H04L63/0435 ,  H04L9/006 ,  H04L9/0618 ,  H04L9/3271 ,  H04L63/0442 ,  H04L63/061 ,  H04L63/168 ,  H04L67/02

Abstract: The present application discloses a method, system and apparatus for storing a website private key plaintext. A specific implementation of the method includes: receiving a public key sent from a terminal configured to perform encryption and decryption, wherein the public key is generated at random by the terminal; encrypting a website private key plaintext by using the public key to generate a website private key ciphertext, wherein the website private key plaintext is pre-acquired; and sending the website private key ciphertext to the terminal, so that the terminal decrypts the website private key ciphertext by using the private key to generate the website private key plaintext and store the website private key plaintext in the terminal. This implementation improves the security of storage of the website private key plaintext.