System and techniques for error correction code (ECC) memory security are described herein. A write request that includes data is received. An integrity check value (ICV) is computed for the data. Then, the write request is performed, including writing a representation of the data to a data area in memory and writing the ICV into an ECC area in memory. Here, the data area is addressable by a host and the ECC area corresponds to the data area via hardware of the memory.

A controller includes an Error Correction Code (ECC) encoder adding a first parity to data to generate a data set, and encoding the data set to generate a first parity data set, a buffer temporarily storing the first parity data set, an ECC decoder decoding the first parity data set received from the buffer to generate a decoded data set, a first checker performing a Low Density Parity Check (LDPC) encoding on the decoded data set to generate an LDPC data set to which a second parity is added, and a second checker performing a syndrome check operation on the LDCP data set including the first and second parities.

This disclosure falls into the field of voice communication systems, more specifically it is related to the field of voice quality estimation in a packet based voice communication system. In particular the disclosure provides methods, computer program products and devices for reducing a prediction error of the voice quality estimation by considering forward error correction of lost voice packets.

Systems and methods are disclosed for decoding data. A first block of data may be obtained from a storage medium or received from a computing device. The first block of data includes a first codeword generated based on an error correction code. A first set of likelihood values is obtained from a neural network. The first set of likelihood values indicates probabilities that the first codeword will be decoded into one of a plurality of decoded values. A second set of likelihood values is obtained from a decoder based on the first block of data. The second set of likelihood values indicates probabilities that the first codeword will be decoded into one of the plurality of decoded values. The first codeword is decoded to obtain a decoded value based on the first set of likelihood values and the second set of likelihood values.

Methods and apparatus for code-based asymmetric cryptosystem using Quasi-Cyclic Moderate-Density Parity-Check (QC-MDPC) error correcting codes. Specifically, the method and apparatus generalizes the framework of (QC-MDPC) Code-Based (CB) cryptography from the binary domain (Galois Field of two elements) to an arbitrary size of Galois Field and provides an apparatus for implementing the cryptosystem with a simplified computational complexity of key generation, encryption, and decryption components of the cryptosystems and reduced sizes of the public and private security keys.

The present invention discloses a coding and decoding method, apparatus, and system for forward error correction, and pertains to the field of communications. The method includes: determining check matrix parameters of time-varying periodic LDPC convolutional code according to performance a transmission system, complexity of the transmission system, and a synchronization manner for code word alignment, constructing a QC-LDPC check matrix according to the determined check matrix parameters, and obtaining a check matrix (H.sub.c) of the time-varying periodic LDPC convolutional code according to the QC-LDPC check matrix; de-blocking, according to requirements of the H.sub.c, data to be coded, and coding data of each sub-block according to the H.sub.c, so as to obtain multiple code words of the LDPC convolutional code; and adding the multiple code words of the LDPC convolutional code in a data frame and sending the data frame.

A method comprising initializing, by a processor, a field identification (FID) field and a file type field in a memory encryption counter block associated with pages for each file of a plurality of files stored in a persistent memory device (PMD), in response to a command by an operating system (OS). The file type field identifies whether each file associated with FID field is one of an encrypted file and a memory location. The method includes decrypting data of a page stored in the PMD, based on a read command by a requesting core. When decrypting, determining whether the requested page is an encrypted file or memory location. If the requested page is an encrypted file, performing decryption based on a first encryption pad generated based on the file encryption key of the encrypted file and a second encryption pad generated based on a processor key of the secure processor.

Embodiments include a method comprising storing each encrypted data block, of a cyphertext page, with corresponding encrypted error correction code (ECC) bits in a persistent memory device (PMD). The encrypted ECC bits verify both an encryption counter value of an encryption operation and a plaintext block of the cyphertext page from a decryption operation. The method includes decrypting, using the decryption operation during a read operation of a memory controller, a respective one block of the cyphertext file and the corresponding encrypted ECC bits stored in the PMD using a current counter value to form the plaintext block and decrypted ECC bits. The method includes verifying the plaintext block with the decrypted ECC bits; and performing a security check of the encryption counter value in response to the plaintext block failing the verification, using the decrypted ECC bits. A system and secure processor are provided.

A method for processing data includes coding a data item to obtain a coded data item that includes a predefinable number of bits, influencing maximally k many bits of the coded data item to obtain a changed data item, decoding the changed data item by using a fault-correcting code to obtain a decoded data item, and processing the decoded data item.

A key-based interleaver for enhancement the security of wireless communication includes a physical layer communication channel key to provide security even when the software encryption key is compromised. A method of creating a secure communication link using a physical layer interleaving system includes implementing a key policy implementation that utilizes temporal dependency and interleaving bits using a flexible inter and intra-block data interleaver.