Volume & Issue: Volume 7, Issue 1, Winter and Spring 2015 (21) 

Editorial

1. Editorial

Pages 1-2

R. Jalili


ORIGINAL RESEARCH PAPER

2. A traceable optimistic fair exchange protocol in the standard model

Pages 3-14

R. Ganjavi; M. Rajabzadeh Asaar; M. Salmasizadeh


5. Optimizing image steganography by combining the GA and ICA

Pages 47-58

F. Sadeghi; F. Zarisfi Kermani; M. Kuchaki Rafsanjani


6. GGRA: a grouped gossip-based reputation aggregation algorithm

Pages 59-74

S. Ghasemi Falavarjani; Behrouz Tork Ladani; S. Ghasemi