Bio

Daniel Lerch holds a BSc degree in Computer Science, a MSc degree in Free and Open Source Software (FOSS) and a PhD in Network and Information Technologies from Universitat Oberta de Catalunya (UOC). He is member of KISON (K-ryptography and Information Security for Open Networks) research group and his research focuses on Steganography, Steganalysis, Image Processing and Machine learning. He is also an expert member at Criminal Use of Information Hiding (CUIng) Initiative (Europol European Cybercrime Centre - EC3).

Daniel Lerch is the founder of Neuron4 Tech, a company dedicated to developing innovative products powered by Artificial Intelligence. He is also associate professor of cryptography at the Universitat Oberta de Catalunya (UOC).

Social / Contact

Tools

Aletheia: Image steganalysis using state-of-the-art machine learning techniques
Stego-retweet: Steganography in Twitter using retweets
python-jpeg-toolbox: The JPEG Toolbox for Python

Publications

Detection of Classifier Inconsistencies in Image Steganalysis. July 2019. Proceedings of the ACM Workshop on Information Hiding and Multimedia Security. [pdf] [slides].
Diagnóstico de CSM en estegoanálisis. Octubre 2018. Reunión Española de Criptografía y Seguridad XV [pdf] [slides].
Manifold alignment approach to cover source mismatch in steganalysis. October 2016. Reunión Española de Criptografía y Seguridad XIV [pdf] [slides] [code].
Unsupervised steganalysis based on artificial training sets. UOC Research Week 2016,18 April 2016. [slides].
Unsupervised steganalysis based on artificial training sets, with Megías. D.Engineering Applications of Artificial Intelligence, April 2016. [10.1016/j.engappai.2015.12.013] [arxiv] [code].
Esteganografía en zonas ruidosas de la imagen, con David Megías. Septiembre 2014. Reunión Española de Criptografía y Seguridad XIII [pdf] [slides].
Esteganografía y Estegoanálisis, con Jordi Serra y la colaboración de Alfonso Muñoz. Mayo 2014. Editorial 0xWord, ISBN: 978-84-617-0021-9 [0xWord].
LSB Matching Steganalysis Based on Patterns of Pixel Differences and Random Embedding, with Megías. D. Computers & Security, February 2013 [10.1016/j.cose.2012.11.005] [arxiv] [code].
Steganalytic Methods for the Detection of Histogram Shifting Data Hiding Schemes, with Megías. D. In: Actas de la XII Reunión Española sobre Criptología y Seguridad de la Información (RECSI 2012). Pag. 381-386. ISBN. 978-84-615-9933-2 [pdf] [slides].
Steganalytic methods for the detection of histogram shifting data-hiding schemes. Jun. 2011. Master Thesis (UOC) [pdf].
Criptografía de curva Elíptica, Ataque Rho de Pollard. Jun. 2007. Hakin9 Magazine [pdf].
Factorization Attack to RSA. Mar. 2007. Hakin9 Magazine [english] [spanish] [french].

Photos

Some pictures from different events related with my research in the fields of steganography and steganalysis.

7th ACM Workshop on Information Hiding and Multimedia Security 2019, París

XV Reunión Española sobre Criptología y Seguridad de la Información 2018, Granada

Thesis defense "Image Steganalysis and Steganography in the Spatial Domain".
Universitat Oberta de Catalunya 2017, Castelldefels

UOC Research Week 2016, Castelldefels

XIV Reunión Española sobre Criptología y Seguridad de la Información 2016, Menorca

XIII Reunión Española sobre Criptología y Seguridad de la Información 2014, Alicante

XII Reunión Española sobre Criptología y Seguridad de la Información 2012, Donostia