This memo updates RFC 4733 to add event codes for telephony signals used for channel-associated signalling when carried in the telephony event RTP payload. It supersedes and adds to the original assignment of event codes for this purpose in Section 3.14 of RFC 2833. As documented in Appendix A of RFC 4733, some of the RFC 2833 events have been deprecated because their specification was ambiguou...

 2D Barcode Sub-Coding Density Limits Guy Adams, Steven Simske,Stephen Pollard HP Laboratories HPL-2011-174 2D barcodes; sub-coding; high resolution; The use of 2D barcodes is becoming increasingly popular and is driven by both the added payload (data carrying capacity) that is provided over 1D linear codes and the fact that the majority of current Smart-phones are capable of reading them. Whi...

This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited. Abstract This document describes an RTP payload format for tr...

Since most current network attacks happen at the application layer, analysis of packet payload is necessary for their detection. Unfortunately malicious packets may be crafted to mimic normal payload, and so avoid detection if the anomaly detection method is known. This paper proposes keyed packet payload anomaly detection NIDS. Model of normal payload is key dependent. Key is different for eac...

The ability of a single administration of a high, medium and low potency foot-and-mouth disease (FMD) vaccine to decrease or inhibit local virus replication and excretion in the oropharynx of sheep following aerosol challenge with homologous live virus 14 days later was examined. Unvaccinated sheep showed signs of clinical FMD, whereas all of the vaccinated sheep, regardless of antigen payload,...

The Steganography is used for secure communication of information by embedding information in a cover object. In this paper we propose Wavelet based Secure Steganography with Scrambled Payload (WSSSP). The Daubechies Lifting Wavelet Transform (LWT) is applied on cover image. The XD band is decomposed into upper and lower bands for payload embedding. The payload is segmented into four equal bloc...