公开(公告)号：US09825920B1

公开(公告)日：2017-11-21

申请号：US14930555

申请日：2015-11-02

Applicant: GOOGLE INC.

Inventor： Marcel M. M. Yung ,  Nunzio Thron ,  Gang Wang

IPC: H04L9/32 ,  H04L29/06

CPC classification number: H04L63/0428 ,  H04L9/0822 ,  H04L9/0866 ,  H04L9/3263 ,  H04L67/10 ,  H04L2209/805

Abstract: A computer-implemented method is provided that includes propagating a first identifier and a first key to one or more cipher engines on a computing system, the one or more cipher engines configured to perform at least one of decryption and encryption based on a first cryptographic scheme from a plurality of cryptographic schemes identified by the first identifier, and the first key; on expiration of the first identifier and the first key, propagating a second identifier and a second key to the one or more cipher engines on the computing system and instructions for configuring the one or more cipher engines to change the first cryptographic scheme to a second cryptographic scheme based on the second identifier and the second key; and setting a time window beyond the expiration for acceptance of messages encrypted in the first cryptographic scheme and messages encrypted in the second cryptographic scheme.

公开(公告)号：US09189638B1

公开(公告)日：2015-11-17

申请号：US13975363

申请日：2013-08-25

Applicant: GOOGLE INC.

Inventor： Marcel M. M. Yung ,  Nunzio Thron ,  Gang Wang

IPC: H04L29/06 ,  G06F21/60 ,  H04L9/32

CPC classification number: G06F21/602 ,  G06F21/606 ,  G06F2221/2107 ,  H04L9/0637 ,  H04L9/14 ,  H04L9/3239 ,  H04L9/3242

Abstract: Systems and methods for multi-function and multi-purpose cryptography are described, including obtaining a message to be encrypted by a cipher engine configured to perform encryption using a plurality of predetermined tags with an encryption function; determining a tag of the plurality of predetermined tags based on the message; encrypting, by the cipher engine, the message using the tag to produce a ciphertext; and sending the ciphertext.

Abstract translation: 描述了用于多功能和多用途密码术的系统和方法，包括获得被配置为使用具有加密功能的多个预定标签执行加密的加密引擎加密的消息; 基于所述消息确定所述多个预定标签的标签; 通过密码引擎加密消息，使用该标签产生密文; 并发送密文。

公开(公告)号：US09178855B1

公开(公告)日：2015-11-03

申请号：US13975365

申请日：2013-08-25

Applicant: GOOGLE INC.

Inventor： Marcel M. M. Yung ,  Nunzio Thron ,  Gang Wang

IPC: H04L9/32 ,  H04L29/06

CPC classification number: H04L9/0822 ,  H04L9/0866 ,  H04L9/3263 ,  H04L63/0428 ,  H04L2209/805

Abstract: Systems and methods for multi-function and multi-purpose cryptography are described, including obtaining, by a cipher engine executing on a computing system, a message and an identifier of a server, the message is to be encrypted by the cipher engine, which is configured to perform at least one of decryption and encryption using a plurality of cryptographic schemes associated with a plurality of servers; determining a cryptographic scheme of the plurality of cryptographic schemes based on the identifier of the server, the cryptographic scheme is associated with the server and defines an encryption scheme; encrypting, by the cipher engine, the message using the encryption scheme to produce a ciphertext; and sending the ciphertext to the server.

Abstract translation: 描述了用于多功能和多用途密码术的系统和方法，包括通过在计算系统上执行的加密引擎获得消息和服务器的标识符，该消息将被加密引擎加密 被配置为使用与多个服务器相关联的多个密码方案来执行解密和加密中的至少一个; 基于所述服务器的标识确定所述多个密码方案的加密方案，所述密码方案与所述服务器相关联并且定义加密方案; 通过密码引擎使用加密方案加密消息以产生密文; 并将密文发送到服务器。