Construction of an orthogonal basis based on pseudorandom sequences

On p-pseudorandom binary sequences

where the maximum is taken over all a, b, t ∈ IN such that 1 ≤ a ≤ a + (t − 1)b ≤ N , while the correlation measure of order k of EN is defined as Research of the second author is partially supported by Hungarian National Foundation for Scientific Research, Grant no. T043623. This paper was written while the second author was visiting the Institut de Mathématiques de Luminy (UPR 9016 CNRS), Mar...

Construction of pseudorandom binary lattices based on multiplicative characters

In this paper a large family of pseudorandom binary lattices is constructed by using the multiplicative characters of finite fields. This construction generalizes several one dimensional constructions to arbitrary dimension. 2000 Mathematics Subject Classification: Primary 11K45

Audio Watermarking Using Pseudorandom Sequences Based on Biometric Templates

This paper proposes an efficient watermark generation method for audio copyright protection and digital right management. It proposes a method of generating pseudorandom sequences based on iris image templates. These biometric generated sequences (bio-keys) are found to be unique for distinct identification purposes. These bio-keys are used as the watermark for audio signals. The correlation of...

On Stochastic Security of Pseudorandom Sequences

Cryptographic primitives such as secure hash functions (e.g., SHA1, SHA2, and SHA3) and symmetric key block ciphers (e.g., AES and TDES) have been commonly used to design pseudorandom generators with counter modes (e.g., in NIST SP800-90A standards). It is assumed that if these primitives are secure then the sequences generated by pseudorandom generators based on these primitives are indistingu...

Pseudorandom sequences and lattices