公开(公告)号：EP0900488B1

公开(公告)日：2006-01-11

申请号：EP97931181.8

申请日：1997-06-12

申请人： INTEL CORPORATION

发明人： AUCSMITH, David ,  GRAUNKE, Gary

IPC分类号： H04K1/00 ,  G06F1/00

CPC分类号： G06F21/57 ,  G06F21/14

摘要： In accordance with a first aspect of the present invention, a security sensitive program (100) that operates with a secret (101) is made tamper resistant by distributing the secret in space as well as in time. In accordance with a second aspect of the present invention, a security sensitive program is made tamper resistant by obfuscating the program. In accordance with a third aspect of the present invention, a security sensitive application is made tamper resistant by isolating its security sensitive functions, and making the isolated security sensitive functions tamper resistant by distributing the secrets of the security sensitive functions in time as well as in space, and/or obfuscating the security sensitive functions. In one embodiment where obfuscation is employed, the pseudo-randomly selected pattern(s) of mutations is (are) unique for each installation. In accordance with a fourth aspect of the present invention, a security sensitive system with security sensitive applications is made further tamper resistant by deploying an interlocking trust mechanism. In accordance with a fifth aspect of the present invention, a content industry association, in conjunction with content manufacturers, content reader manufacturers, and content player manufacturers of the industry jointly implement a coordinated encryption/decryption scheme, with the player apparatus manufactured by the content player manufacturers employing playing software that include tamper resistant decryption functions.

公开(公告)号：EP1654661B1

公开(公告)日：2019-07-24

申请号：EP04754772.4

申请日：2004-06-09

申请人： Intel Corporation

发明人： ROZAS, Carlos ,  GRAUNKE, Gary

IPC分类号： G06F12/14 ,  G06F1/00

公开(公告)号：EP1829276B1

公开(公告)日：2013-03-20

申请号：EP05853584.0

申请日：2005-12-09

申请人： Intel Corporation

发明人： BRICKELL, Ernest ,  GRAUNKE, Gary

IPC分类号： H04L9/06

CPC分类号： H04L9/0637 ,  H04L9/0668

公开(公告)号：EP1829276A1

公开(公告)日：2007-09-05

申请号：EP05853584.0

申请日：2005-12-09

申请人： Intel Corporation

发明人： BRICKELL, Ernest ,  GRAUNKE, Gary

IPC分类号： H04L9/06

CPC分类号： H04L9/0637 ,  H04L9/0668

摘要： Encrypting data in as cascaded block cipher system may be accomplished by applying a first encryption algorithm using a secret shared between first and second parties as a key to generate a secret inner key; applying a second encryption algorithm for a predetermined number of rounds using the secret inner key to generate a plurality of blocks of ciphertext data from a plurality of blocks of plaintext data; and repeating the applying the first encryption algorithm and the applying the second encryption algorithm steps.

公开(公告)号：EP1654661A2

公开(公告)日：2006-05-10

申请号：EP04754772.4

申请日：2004-06-09

申请人： INTEL CORPORATION

发明人： ROZAS, Carlos ,  GRAUNKE, Gary

IPC分类号： G06F12/14 ,  G06F1/00

CPC分类号： G06F12/1408 ,  G06F12/0802 ,  G06F21/78 ,  G06F21/85 ,  H04L9/0637 ,  H04L2209/12

摘要： A method and apparatus for memory encryption with reduced decryption latency. In one embodiment, the method includes reading an encrypted data block from memory. During reading of the encrypted data block, a keystream used to encrypt the data block is regenerated according to one or more stored criteria of the encrypted data block. Once the encrypted data block is read, the encrypted data block is decrypted using the regenerated keystream. Accordingly, in one embodiment, encryption of either random access memory (RAM) or disk memory is performed. A keystream is regenerated during data retrieval such that once the data is received, the data may be decrypted using a single clock operation. As a result, memory encryption is performed without exacerbating memory latency between the processor and memory.

摘要翻译： 一种用于具有降低的解密等待时间的存储器的加密方法和设备。 在一个，实施例的方法包括：从存储器的加密数据块的读出。 期间读取的加密数据块的，密钥流用于加密所述数据块被再生gemäß到一个或多个存储的加密数据块的条件。 一旦加密数据块被读取，加密的数据块使用再生的密钥流解密。 因此，在一个实施方式中，进行任一随机存取存储器（RAM）或磁盘存储器的加密。 密钥流被再生期间的数据检索搜索做一旦接收到数据时，数据可以使用单个时钟操作被解密。 其结果是，存储器加密进行不加剧了处理器和存储器之间的存储器等待时间。

公开(公告)号：EP1570475A2

公开(公告)日：2005-09-07

申请号：EP03786657.1

申请日：2003-11-06

申请人： Intel Corporation (a Delaware Corporation)

发明人： ELLISON, Carl ,  TRAW, Brendan ,  RIPLEY, Michael ,  GRAUNKE, Gary

IPC分类号： G11B20/00

CPC分类号： G11B20/0021 ,  G11B20/00086 ,  G11B20/00188 ,  G11B20/00224 ,  G11B20/00253 ,  G11B20/00362 ,  G11B20/00492 ,  G11B20/00528 ,  H04L9/0825 ,  H04L9/0897 ,  H04L2209/60

摘要： Protected content distribution is accomplished by a first entity generating a set of asymmetric key pairs, creating a plurality of sets of private keys by selecting a combination of private keys from the set of asymmetric key pairs for each created set, and distributing the sets of private keys to playback devices. A second entity produces protected content including encrypted content and a public key media key block, encrypts a symmetric content key with each public key in the set of asymmetric key pairs to form the public key media key block and encrypts a content title with the symmetric content key to form the encrypted content. A playback device stores one set of private keys, receives the protected content, and decrypts and plays the content title stored in the protected content when a selected one of the set of private keys stored by the playback device successfully decrypts the encrypted symmetric content key stored in the public key media key block of the received protected content.

公开(公告)号：EP0900488A1

公开(公告)日：1999-03-10

申请号：EP97931181.0

申请日：1997-06-12

申请人： INTEL CORPORATION

发明人： AUCSMITH, David ,  GRAUNKE, Gary

IPC分类号： G06F1 ,  G06F21

CPC分类号： G06F21/57 ,  G06F21/14

摘要： In accordance with a first aspect of the present invention, a security sensitive program (100) that operates with a secret (101) is made tamper resistant by distributing the secret in space as well as in time. In accordance with a second aspect of the present invention, a security sensitive program is made tamper resistant by obfuscating the program. In accordance with a third aspect of the present invention, a security sensitive application is made tamper resistant by isolating its security sensitive functions, and making the isolated security sensitive functions tamper resistant by distributing the secrets of the security sensitive functions in time as well as in space, and/or obfuscating the security sensitive functions. In one embodiment where obfuscation is employed, the pseudo-randomly selected pattern(s) of mutations is (are) unique for each installation. In accordance with a fourth aspect of the present invention, a security sensitive system with security sensitive applications is made further tamper resistant by deploying an interlocking trust mechanism. In accordance with a fifth aspect of the present invention, a content industry association, in conjunction with content manufacturers, content reader manufacturers, and content player manufacturers of the industry jointly implement a coordinated encryption/decryption scheme, with the player apparatus manufactured by the content player manufacturers employing playing software that include tamper resistant decryption functions.