Secure key storage using physically unclonable functions
    42.
    发明授权
    Secure key storage using physically unclonable functions 有权
    使用物理不可克隆功能保护密钥存储

    公开(公告)号:US09544141B2

    公开(公告)日:2017-01-10

    申请号:US13996544

    申请日:2011-12-29

    IPC分类号: H04L29/06 H04L9/08

    摘要: Some implementations disclosed herein provide techniques and arrangements for provisioning keys to integrated circuits/processors. A processor may include physically unclonable functions component, which may generate a unique hardware key based at least on at least one physical characteristic of the processor. The hardware key may be employed in encrypting a key such as a secret key. The encrypted key may be stored in a memory of the processor. The encrypted key may be validated. The integrity of the key may be protected by communicatively isolating at least one component of the processor.

    摘要翻译: 本文公开的一些实施例提供了用于向集成电路/处理器供应密钥的技术和布置。 处理器可以包括物理上不可克隆的功能组件,其可以至少基于处理器的至少一个物理特性来生成唯一的硬件密钥。 硬件密钥可用于加密诸如秘密密钥的密钥。 加密密钥可以存储在处理器的存储器中。 可以验证加密的密钥。 可以通过通信地隔离处理器的至少一个组件来保护密钥的完整性。

    Reconfigurable SIMD vector processing system
    43.
    发明授权
    Reconfigurable SIMD vector processing system 有权
    可重构SIMD矢量处理系统

    公开(公告)号:US07519646B2

    公开(公告)日:2009-04-14

    申请号:US11586810

    申请日:2006-10-26

    IPC分类号: G06F7/52

    CPC分类号: G06F7/5324 G06F2207/3828

    摘要: A system may include M N-bit×N-bit multipliers to output M 2N-bit products in a redundant format, a compressor to receive the M 2N-bit products and to generate an MN-bit product in a redundant format based on the M 2N-bit products, and an adder block to receive the M 2N-bit products and the MN-bit product, to select one from the M 2N-bit products or the MN-bit product, and to resolve the selected one of the M 2N-bit products or the MN-bit product to a non-redundant format.

    摘要翻译: 系统可以包括用于以冗余格式输出M 2N位产品的M N位×N位乘法器,用于接收M 2N位乘积并基于M 2N产生冗余格式的MN位乘积的压缩器 以及用于接收M 2N位乘积和MN位乘积的加法器块,从M 2N位乘积或MN位乘积中选择一个,并将所选择的一个M 2N 位产品或MN位产品为非冗余格式。

    Apparatus and method for an address generation circuit
    47.
    发明授权
    Apparatus and method for an address generation circuit 有权
    地址生成电路的装置和方法

    公开(公告)号:US07380099B2

    公开(公告)日:2008-05-27

    申请号:US10956164

    申请日:2004-09-30

    IPC分类号: G06F12/00

    CPC分类号: G06F7/507 G06F7/508

    摘要: A method and apparatus for an address generation circuit. In one embodiment, the method includes computing a carry-in for at least one group of a predetermined number of bits of a propagate and a generate signal formed from a plurality of logical address components. Once the carry-in is computed, a plurality of conditional sums are generated for a logic 0 carry-in and a logic 1 carry-in. Subsequently, a sum is selected from the plurality of conditional sums to form a first portion of an effective address from the logical address components in a first stage and a second portion of the effective address in a second stage. In one embodiment, a fully dynamic high-performance sparse tree adder circuit that generates one in four carries, is used to form an address generation circuit, in accordance with one embodiment. Other embodiments are described and claimed.

    摘要翻译: 一种用于地址产生电路的方法和装置。 在一个实施例中,该方法包括计算由多个逻辑地址分量形成的传播信号和生成信号的预定位数的至少一组的进位。 一旦计算了进位,则为逻辑0进位和逻辑1进位产生多个条件和。 随后,从多个条件和中选出一个和,以在第二阶段中的第一阶段的逻辑地址分量和有效地址的第二部分中形成有效地址的第一部分。 在一个实施例中,根据一个实施例,使用产生四分之一载波的完全动态的高性能稀疏树加法器电路来形成地址生成电路。 描述和要求保护其他实施例。