摘要:
An apparatus having a first circuit and a second circuit is disclosed. The first circuit may be configured to (i) generate second Galois Field elements by performing a first Galois Field inversion on first Galois Field elements, the first Galois Field inversion being different from a second Galois Field inversion defined by an Advanced Encryption Standard and (ii) generate third Galois Field elements by multiplying the second Galois Field elements by an inverse of a predetermined matrix. The second circuit may be configured to (i) generate fourth Galois Field elements by processing the third Galois Field elements in a current encryption round while in a non-skip mode, (ii) generate fifth Galois Field elements by multiplying the fourth Galois Field elements by the predetermined matrix and (iii) present the fifth Galois Field elements as updated versions of the first Galois Field elements in advance of a next encryption round.
摘要:
An apparatus comprising a controller, a plurality of transport circuits and a plurality of memory-controlling circuits. The controller may be configured to (i) present one or more commands and (ii) receive one or more responses. Each of the plurality of transport circuits may be configured to (i) receive one of the commands, (ii) present the responses, and (iii) generate one or more control signals. Each of the plurality of memory-controlling circuits may be (i) coupled to a respective one of the plurality of transport circuits and (ii) configured to (i) generate one or more memory access signals in response to the one or more control signals, (ii) receive one or more memory output signals from a respective memory in response to the one or more memory access signals and (iii) generate the responses in response to the one or more memory output signals. Each respective memory may be independently sized. The controller generally provides a common testing routine for each respective memory that may be adjusted for the size of each respective memory by the memory-controlling circuits.
摘要:
A memory collar including a first circuit and a second circuit. The first circuit may be configured to generate one or more data sequences in response to one or more test commands. The one or more data sequences may be presented to a memory during a test mode. The second circuit may be configured to pre-process one or more outputs generated by the memory in response to the one or more data sequences.
摘要:
Disclosed is a cipher independent cryptographic hardware service. Cipher independent transactions are received into input slots (202). The input slots contain FIFOs to hold the transactions. The transactions are converted from cipher independent form to cipher dependent form (206) and timing as they are removed from the FIFOs. After cryptographic processing by cipher specific hardware, the results are sent to output FIFOs (212). Multiple FIFOs and cryptographic hardware may be used so that multiple cryptographic functions may be performed in parallel and simultaneously.
摘要:
An apparatus including an initialization circuit and a hash computation circuit. The initialization circuit may be configured to present a number of initialization values. The hash computation circuit may be configured to generate hash values for the message in response to the padded message blocks and the initialization values. The hash computation circuit generally performs a diagonal cut technique that simultaneously uses values from a plurality of different cycle rounds in a single cycle round analog.
摘要:
Disclosed is a method and apparatus for matching regular expressions. A buffer of symbols giving a number of the last occurrence positions of each symbol is maintained. When two constants match on either side of a regular expression operator, the buffer of symbols is queried to determine if a member of the complement of the regular expression operator occurred between the two constants. If so, then the operator was not satisfied. If not, then the operator was satisfied.
摘要:
An apparatus including a controller configured to present one or more commands and receive one or more responses, a plurality of transport circuits configured to receive one of the commands, present the responses, and generate one or more control signals, and a plurality of memory-controlling circuits, each coupled to a respective one of the plurality of transport circuits and configured to generate one or more memory access signals in response to the one or more control signals, receive one or more memory output signals from a respective memory in response to the one or more memory access signals, and generate the responses in response to the one or more memory output signals. Each respective memory may be independently sized. The controller generally provides a common testing routine for each respective memory that may be adjusted for the size of each respective memory by the memory-controlling circuits.
摘要:
A combination of an infrequently-called tiny multiplication unit and a “differential” unit that quickly computes T (n+1) basing on known T n. The schedule (how often the multiplication unit is called) can be considered as a parameter of the algorithm. The proposed architecture of the “differential” unit is efficient both in terms of speed (delay) and area (gate count).