Objektigeneratoren zur Echtzeitdarstellung von Dreiecken. - Karl C. Posch (Austrographics, 1988)

Blocktransferprozessor: Echtzeitdarstellung alphanumerischer Bilder in CEPT-Kodierung. - Karl C. Posch (Visualisierungstechniken und Algorithmen, 1988)

The circle-brush algorithm. - Karl C. Posch; Wolf-Dietrich Fellner (ACM Trans. Graph., 1989)

Proceedings of the 1988 IEEE International Conference on Computer Design: VLSI in Computers and Processors : IEEE Computer Society Press, Los Alamitos, CA, USA (1988) 618pp. - Karl C. Posch (Comput. Aided Des., 1990)

Approaching encryption at ISDN speed using partial parallel modulus multiplication. - Karl C. Posch; Reinhard Posch (Microprocessing and Microprogramming, 1990)

Multiplication as Parallel as Possible. - P. Lippitsch; Karl C. Posch; Reinhard Posch (ACPC, 1991)

Residue Number Systems: A Key to Parallelism in Public Key Cryptography. - Karl C. Posch; Reinhard Posch (SPDP, 1992)

Base extension using a convolution sum in residue number systems. - Karl C. Posch; Reinhard Posch (Computing, 1993)

Testing a High-Speed Data Path: The Design of the RSAs Crypto Chip. - Wolfgang Mayerwieser; Karl C. Posch; Reinhard Posch; Volker Schindler (J. Univers. Comput. Sci., 1995)

Modulo Reduction in Residue Number Systems. - Karl C. Posch; Reinhard Posch (IEEE Trans. Parallel Distributed Syst., 1995)

RNS-modulo reduction upon a restricted base value set and its applicability to RSA cryptography. - J. Schwemmlein; Karl C. Posch; Reinhard Posch (Comput. Secur., 1998)

ISDN Security services. - Herbert Leitold; Karl C. Posch; Reinhard Posch (Communications and Multimedia Security, 1999)

A 155 Mbps Triple-DES Network Encryptor. - Herbert Leitold; Wolfgang Mayerwieser; Udo Payer; Karl C. Posch; Reinhard Posch; Johannes Wolkerstorfer (CHES, 2000)

Robustness-Agile Encryptor for ATM Networks. - Herbert Leitold; Wolfgang Mayerwieser; Udo Payer; Karl C. Posch; Reinhard Posch; Johannes Wolkerstorfer (SEC, 2000)

Architectural Enhancements to Support Digital Signal Processing and Public-Key Cryptography. - Johann Großschädl; Karl C. Posch; Stefan Tillich (WISES, 2004)

Secure and Privacy-Preserving eGovernment - Best Practice Austria. - Karl-Christian Posch; Reinhard Posch; Arne Tauber; Thomas Zefferer; Bernd Zwattendorfer (Rainbow of Computer Science, 2011)