Media type: E-Article Title: Provably Secure Steganography Contributor: Hopper, Nicholas; von Ahn, Luis; Langford, John Published: Institute of Electrical and Electronics Engineers (IEEE), 2009 Published in: IEEE Transactions on Computers, 58 (2009) 5, Seite 662-676 Language: Without Specification DOI: 10.1109/tc.2008.199 ISSN: 0018-9340 Origination: Footnote: