Abstract: In one example an apparatus comprises verification circuitry to store an object image in a computer readable memory external to an XMSS verifier circuitry and verify the object image by repeating operations to receive, in a local memory of the XMSS verifier circuitry, a fixed-sized block of data from the object image and process the fixed-sized block of data to compute the signature verification. Other examples may be described.

Abstract: An HDLC frame formation technique that calculates fields based on unscrambled data and combines unscrambled fields with scrambled data. Decoding HDLC frames includes determining integrity of the scrambled data based on the unscrambled fields.

Abstract: A method for formatting ATM cells compliant with SPI-4 Phase 2 specification is presented. The method enables selection among various cell formats depending on the devices employed, and enables use of a payload-only test format, a typical format having payload and header data, a format having header error correction (HEC) data and dummy data, and a format having HEC data and user data.

Abstract: A device for mapping and demapping cells in an orderly manner is provided. The device employs a channel identifier and in certain configurations a buffer and series of stages to provide for relatively ordered, predictable mapping and demapping of data, such as virtual concatenation data.

Abstract: According to some embodiments, an apparatus is provided comprising a plurality of transmit storage structures each being associated with a storage width, a write block, and a read block. The write block is to receive information having a first width via an interface associated with a configurable width, and the read block is to read the information from the storage structures and is to transmit information to a network line.

Abstract: Configurable CRC calculation engines and methods of performing CRC calculations are presented. The configurable CRC calculation engines calculate a CRC value for the data using an associated polynomial and remainder. The method includes receiving a polynomial, receiving a block of data to determine a CRC value for, and calculating a CRC value for the data using the polynomial. With such devices and methods, the configurable CRC calculation engines are useful in various applications and protocols.

Abstract: An HDLC frame formation technique that calculates fields based on unscrambled data and combines unscrambled fields with scrambled data. Decoding HDLC frames includes determining integrity of the scrambled data based on the unscrambled fields.

Abstract: Configurable CRC calculation engines and methods of performing CRC calculations are presented. The configurable CRC calculation engines calculate a CRC value for the data using an associated polynomial and remainder. The method includes receiving a polynomial, receiving a block of data to determine a CRC value for, and calculating a CRC value for the data using the polynomial. With such devices and methods, the configurable CRC calculation engines are useful in various applications and protocols.

Abstract: According to some embodiments, configurable transmit and receive system interfaces are proved for a network device.

Abstract: A system to generate and transfer data frames without frame abortion includes an input source to provide input characters to transmit. A frame writing device generates the data frames having the input characters, stuffed characters, and non-data characters. The frame writing device inserts the stuffed characters into the data frames in place of the input characters that are identical to predetermined special characters utilized in the data frames. No more than two different special characters are utilized in the data frames. A frame transmitting device transmits the data frames. A frame receiving device receives the data frames. A data extraction device extracts the input characters from the data frames. The data extraction device extracts the input characters from the stuffed characters.