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    • 6. 发明授权
    • Implementation of AES encryption circuitry with CCM
    • 采用CCM实现AES加密电路
    • US08233619B2
    • 2012-07-31
    • US11448425
    • 2006-06-07
    • Guido BertoniJefferson E. Owen
    • Guido BertoniJefferson E. Owen
    • H04K1/06
    • H04L9/0631H04L9/0637H04L9/3242H04L2209/125H04L2209/24H04L2209/38H04L2209/80
    • Circuitry for encrypting at least a part of an input data flow and generating a tag based on the input data flow with the same ciphering algorithm and the same key, the algorithm including iterative computations by at least two operation units, the circuitry including a pipeline including an input selection unit arranged to receive first data values to generate encryption sequences with the ciphering algorithm, second data values to generate temporary tags with the ciphering algorithm and an output of the pipeline; a first stage arranged to receive an output of the input selection unit and including at least a first operation unit; and a second stage arranged to receive an output of the first stage, including at least a second operation unit and providing the output of the pipeline.
    • 电路,用于对输入数据流的至少一部分进行加密,并使用相同的加密算法和相同的密钥,基于输入数据流生成标签,所述算法包括由至少两个操作单元进行的迭代计算,所述电路包括流水线, 输入选择单元,被配置为接收第一数据值以生成具有加密算法的加密序列,第二数据值以加密算法和流水线的输出生成临时标签; 第一级,被布置成接收输入选择单元的输出并且至少包括第一操作单元; 以及第二级,被布置成接收第一级的输出,包括至少第二操作单元并提供管道的输出。
    • 7. 发明授权
    • JPEG2000 syntax-compliant encryption with full scalability
    • 具有完全可扩展性的JPEG2000语法兼容加密
    • US08081755B2
    • 2011-12-20
    • US11419468
    • 2006-05-19
    • Bin ZhuShipeng LiYang Yang
    • Bin ZhuShipeng LiYang Yang
    • H04N7/167H04K1/04H04K1/06H04L9/00H04L29/06G06F21/00
    • H04K1/00H04L9/0637
    • A method and system is provided for encrypting an image compressed with a JPEG2000-based compression with minimal overhead so that the encrypted codestream is compliant with the syntax of the JPEG2000-based compression and can be scaled without decrypting. The encryption system generates, for each independent encryption segment of a codestream for an image, a unique initialization vector from a global initialization vector in such a way that the initialization vectors can be generated during decryption from the global initialization vector, even after truncation. The encryption system encrypts each independent encryption segment using its unique initialization vector. The encryption system ensures that the encrypted codestream is compliant with the syntax of the JPEG2000-based compression both as originally generated and as truncated by an encryption-unaware device.
    • 提供了一种方法和系统,用于以最小的开销加密用基于JPEG2000的压缩压缩的图像,使得加密的码流符合基于JPEG2000的压缩的语法,并且可以在不进行解密的情况下进行缩放。 加密系统对于图像的码流的每个独立加密段产生来自全局初始化向量的唯一初始化向量,使得即使在截断之后也可以在全局初始化向量的解密期间生成初始化向量。 加密系统使用其唯一的初始化向量来加密每个独立的加密段。 加密系统确保加密的码流符合基于JPEG2000的压缩的语法,原始生成并被加密不知情的设备截断。
    • 8. 发明授权
    • Method and apparatus for encrypting and decrypting data to/from an ESCON tape system
    • 用于向/从ESCON磁带系统加密和解密数据的方法和装置
    • US07873828B2
    • 2011-01-18
    • US11835324
    • 2007-08-07
    • Joseph F. GrubaGilford C. FisherChristopher D. Rigg
    • Joseph F. GrubaGilford C. FisherChristopher D. Rigg
    • H04L29/06G06F21/00G06F7/04H04K1/10H04K1/06
    • H04L9/06H04L2209/125H04L2209/30
    • A method and apparatus for encrypting data written to an Enterprise System Connection (ESCON) tape system and reading encrypted data from such a tape system and decrypting the encrypted data is described. One illustrative embodiment, in writing encrypted data to an ESCON tape system, receives from a computer over a first ESCON link a command to write a data block of specified size to the ESCON tape system; requests data constituting the data block from the computer in sub-blocks; compresses and encrypts each sub-block to produce a corresponding compressed and encrypted sub-block; and transmits to the ESCON tape system over a second ESCON link the compressed and encrypted sub-blocks using a series of chained-data write operations, the transmitted compressed and encrypted sub-blocks forming a compressed and encrypted data block on a tape of the ESCON tape system.
    • 描述用于加密写入企业系统连接(ESCON)磁带系统并从这种磁带系统读取加密数据并解密加密数据的方法和装置。 在将加密数据写入ESCON磁带系统的一个说明性实施例中,通过第一ESCON链接从计算机接收将指定尺寸的数据块写入ESCON磁带系统的命令; 在子块中从计算机请求构成数据块的数据; 压缩和加密每个子块以产生相应的压缩和加密子块; 并且通过第二ESCO​​N链路向ESCON磁带系统发送使用一系列链接数据写入操作的压缩和加密的子块,所发送的压缩和加密的子块在ESCON的磁带上形成压缩和加密的数据块 磁带系统
    • 9. 发明授权
    • Locally interative encryption generating compliant ciphertext for general syntax specifications
    • 本地迭代加密生成符合一般语法规范的密文
    • US07769168B2
    • 2010-08-03
    • US11095048
    • 2005-03-31
    • Bin ZhuYang YangShipeng Li
    • Bin ZhuYang YangShipeng Li
    • H04K1/06
    • H04L9/0637H04L9/065H04L2209/26H04L2209/30H04L2209/603
    • A fast and secure syntax compliant encryption schema, “locally iterative encryption,” can produce compliant ciphertext for a general syntax specification. In one implementation, an engine partitions a data stream into blocks, and encrypts each block iteratively until syntax compliance conditions are met. A system using the schema can utilize either stream ciphers or block ciphers in different modes. Locally iterative encryption methods are fast and remain at approximately the same speed even as the length of the data stream to be encrypted increases. Besides providing superior processing speed, the locally iterative encryption schema is also more robust to errors in the resulting ciphertext and in the resulting decrypted plaintext than conventional syntax compliant encryption techniques. Locally iterative encryption is secure as long as an underlying encryption cipher selected for use in the schema is secure.
    • 快速和安全的语法兼容加密模式“本地迭代加密”可以为通用语法规范提供符合规定的密文。 在一个实现中,引擎将数据流分割成块,并且迭代地对每个块进行加密,直到满足语法符合条件。 使用该模式的系统可以利用不同模式的流密码或块密码。 即使要加密的数据流的长度增加,本地迭代加密方法也是快速且保持大致相同的速度。 除了提供优越的处理速度之外,本地迭代加密模式对于所生成的密文中的错误以及生成的解密明文也比传统的符合法规的加密技术更加鲁棒。 只要选择用于模式的底层加密密码是安全的,本地迭代加密就是安全的。
    • 10. 发明授权
    • Apparatus and method for performing transparent cipher feedback mode cryptographic functions
    • 用于执行透明密码反馈模式密码功能的装置和方法
    • US07529367B2
    • 2009-05-05
    • US10826428
    • 2004-04-16
    • G. Glenn HenryThomas A. CrispinTerry Parks
    • G. Glenn HenryThomas A. CrispinTerry Parks
    • H04K1/06
    • H04L9/0631G06F9/30007H04L9/0637H04L2209/125H04L2209/24
    • An apparatus and method for performing cryptographic operations on a plurality of input data blocks within a processor. In one embodiment, an apparatus for performing cryptographic operations is provided. The apparatus includes a cryptographic instruction, CFB mode logic, and execution logic. The cryptographic instruction is received by a pipeline microprocessor as part of an application program executing on the pipeline microprocessor. The cryptographic instruction prescribes one of the cryptographic operations. The one of the cryptographic operations includes a plurality of CFB block cryptographic operations performed on a corresponding plurality of input text blocks. The CFB mode logic is operatively coupled to the cryptographic instruction. The CFB mode logic directs the pipeline microprocessor to update pointer registers and intermediate results for each of the plurality of CFB block cryptographic operations. The execution logic is operatively coupled to the CFB mode logic. The execution logic executes the one of the cryptographic operations.
    • 一种用于对处理器内的多个输入数据块执行加密操作的装置和方法。 在一个实施例中,提供了一种用于执行密码操作的装置。 该装置包括密码指令,CFB模式逻辑和执行逻辑。 密码指令由流水线微处理器接收,作为在流水线微处理器上执行的应用程序的一部分。 加密指令规定了一种加密操作。 密码操作之一包括对相应的多个输入文本块执行的多个CFB块加密操作。 CFB模式逻辑可操作地耦合到密码指令。 CFB模式逻辑指示流水线微处理器为多个CFB块加密操作中的每一个更新指针寄存器和中间结果。 执行逻辑可操作地耦合到CFB模式逻辑。 执行逻辑执行加密操作之一。