公开(公告)号：EP1675300B1

公开(公告)日：2008-10-01

申请号：EP05103305.8

申请日：2005-04-22

Applicant: Hewlett-Packard Development Company, L.P. ,  STMicroelectronics S.r.l.

Inventor： Harrison, Keith Alexander ,  Chen, Liqun ,  Bertoni, Guido Marco ,  Fragneto, Pasqualina ,  Pelosi, Gerardo

IPC: H04L9/32 ,  H04L9/30 ,  G06F7/72

CPC classification number: H04L9/08 ,  H04L9/3073 ,  H04L9/321 ,  H04L2209/80 ,  H04W12/06

公开(公告)号：EP1548976A1

公开(公告)日：2005-06-29

申请号：EP03425824.4

申请日：2003-12-24

Applicant: STMicroelectronics S.r.l.

Inventor： Sannino, Roberto Valerio ,  Sozzani, Fabio ,  Bertoni, Guido Marco ,  Pelosi, Gerardo ,  Fragneto, Pasqualina

IPC: H04L9/30

CPC classification number: H04L9/083 ,  H04L9/3073 ,  H04L9/3213

Abstract: A method for decrypting the encrypted messages sent by a transmission device to a first electronic device (SIM) associated with a first trusted authority (TA-SIM) and to a second electronic device (ME). The method comprises the steps of:

a) associating a single joint identity with the first (SIM) and the second (ME) devices which is identificative of a common entity comprising the first (SIM) and the second (ME) devices;
b) carrying out a single encryption operation of a message by the transmission device, by using the joint identity and transmitting the encrypted message to both devices;
c) generating first (W SIM ) and second (W ME ) decryption tokens by the first (SIM) and the second (ME) devices, respectively;
d) providing said first token to the second device and said second token to the first device;
e) generating, by starting from said tokens, by the first and second devices, of a joint decryption key (W) in order to decrypt the encrypted message.

Abstract translation: 一种用于将由传输设备发送的加密消息解密到与第一可信管理机构（TA-SIM）和第二电子设备（ME））相关联的第一电子设备（SIM）的方法。 该方法包括以下步骤：a）将单个联合身份与第一（SIM）和第二（ME）设备相关联，其与包括第一（SIM）和第二（ME）设备的公共实体相同） b）通过使用联合身份并将加密的消息发送到两个设备，由传输设备执行消息的单一加密操作; c）分别由第一（SIM）和第二（ME）设备产生第一（WSIM）和第二（WME）解密令牌） d）向所述第一设备提供所述第一令牌给所述第二设备和所述第二令牌; e）通过第一和第二设备从所述令牌开始，通过联合解密密钥（W）生成以解密加密的消息。

公开(公告)号：EP2015505A3

公开(公告)日：2016-11-16

申请号：EP08012447.2

申请日：2008-07-10

Applicant: STMicroelectronics Srl ,  STMicroelectronics, Inc.

Inventor： Bertoni, Guido Marco ,  Owen, Jefferson Eugene

IPC: H04L9/06 ,  G09C1/00

CPC classification number: H04L9/0637 ,  G09C1/00 ,  H04L2209/122 ,  H04L2209/125

Abstract: An encoding/decoding apparatus comprises a central processing unit and an encryption/decryption accelerator coupled to the central processing unit The accelerator comprises an input for input data to be encrypted/decrypted, an arithmetic logic unit coupled to said input for performing selectable operations on data obtained from said input data and an output for encrypted/decrypted data coupled to said arithmetic logic unit.