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    • 14. 发明授权
    • Instruction set for message scheduling of SHA256 algorithm
    • SHA256算法消息调度指令集
    • US08838997B2
    • 2014-09-16
    • US13631165
    • 2012-09-28
    • Gilbert M. WolrichKirk S. YapJames D. GuilfordVinodh GopalSean M. Gulley
    • Gilbert M. WolrichKirk S. YapJames D. GuilfordVinodh GopalSean M. Gulley
    • H04L9/28
    • G09C1/00G06F9/30007H04L9/0643H04L2209/125
    • A processor includes a first execution unit to receive and execute a first instruction to process a first part of secure hash algorithm 256 (SHA256) message scheduling operations, the first instruction having a first operand associated with a first storage location to store a first set of message inputs and a second operand associated with a second storage location to store a second set of message inputs. The processor further includes a second execution unit to receive and execute a second instruction to process a second part of the SHA256 message scheduling operations, the second instruction having a third operand associated with a third storage location to store an intermediate result of the first part and a third set of message inputs and a fourth operand associated with a fourth storage location to store a fourth set of message inputs.
    • 处理器包括第一执行单元,用于接收和执行第一指令以处理安全散列算法256(SHA256)消息调度操作的第一部分,所述第一指令具有与第一存储位置相关联的第一操作数,以存储第一组 消息输入和与第二存储位置相关联的第二操作数,以存储第二组消息输入。 所述处理器还包括第二执行单元,用于接收和执行用于处理所述SHA256消息调度操作的第二部分的第二指令,所述第二指令具有与第三存储位置相关联的第三操作数,以存储所述第一部分的中间结果;以及 第三组消息输入和与第四存储位置相关联的第四操作数,以存储第四组消息输入。
    • 16. 发明申请
    • INSTRUCTION AND LOGIC TO PROVIDE SIMD SECURE HASHING ROUND SLICE FUNCTIONALITY
    • 指示和逻辑提供SIMD安全冲击圆形功能
    • US20140189368A1
    • 2014-07-03
    • US13731004
    • 2012-12-29
    • Gilbert M. WolrichVinodh GopalKirk S. Yap
    • Gilbert M. WolrichVinodh GopalKirk S. Yap
    • G06F21/60
    • H04L9/0643G06F9/30007G06F9/30036G06F9/30145G06F9/3887G06F15/8007G06F21/602G06F21/64
    • Instructions and logic provide SIMD secure hashing round slice functionality. Some embodiments include a processor comprising: a decode stage to decode an instruction for a SIMD secure hashing algorithm round slice, the instruction specifying a source data operand set, a message-plus-constant operand set, a round-slice portion of the secure hashing algorithm round, and a rotator set portion of rotate settings. Processor execution units, are responsive to the decoded instruction, to perform a secure hashing round-slice set of round iterations upon the source data operand set, applying the message-plus-constant operand set and the rotator set, and store a result of the instruction in a SIMD destination register. One embodiment of the instruction specifies a hash round type as one of four MD5 round types. Other embodiments may specify a hash round type by an immediate operand as one of three SHA-1 round types or as a SHA-2 round type.
    • 说明和逻辑提供SIMD安全散列圆切片功能。 一些实施例包括处理器,包括:解码级,用于解码用于SIMD安全散列算法圆切片的指令,指定源数据操作数集合的指令,消息加常数操作数集合,安全散列的圆切片部分 圆周运算,旋转设定部分旋转设定。 处理器执行单元响应于解码的指令,在源数据操作数集合上执行循环迭代的安全散列圆切片集合,应用消息加常数操作数集合和旋转器集合,并且存储 SIMD目的寄存器中的指令。 该指令的一个实施例将哈希循环类型指定为四个MD5循环类型之一。 其他实施例可以通过立即操作数来指定散列循环类型,作为三种SHA-1轮型之一或SHA-2轮型。