Hervé Talé Kalachi

Publications

• New

  Generalized subspace subcodes in the rank metric

  Ousmane Ndiaye, Peter Arnaud Kidoudou, and Hervé Talé Kalachi Journal of Algebra Combinatorics Discrete Structures and Applications, 13(2): 199–216, 2026.
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• Contextual Cloud Steganography (CCS): Breaking the Capacity-Security Trade-Off

  Stéphane Willy Mossebo Tcheunteu, Leonel Moyou Metcheka, Hervé Talé Kalachi, Stéphane Gaël Raymond Ekodeck, René Ndoundam, and Alain Tchana IEEE Transactions on Cloud Computing, 2026.
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• High embedding capacity text steganography using optimal color combinations from 24-bit space

  Stéphane Willy Mossebo Tcheunteu, Hervé Talé Kalachi, Stéphane Gaël Raymond Ekodeck, Leonel Moyou Metcheka, Jean Marsien Ayemidie Moto, and René Ndoundam Journal of Computer Security, 2026.
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• Security assessment of the LG cryptosystem

  Étienne Burle, Hervé Talé Kalachi, Freddy Lende Metouke, and Ayoub Otmani Applicable Algebra in Engineering, Communication and Computing, 37(1): 187–198, 2026.
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• Solving systems of algebraic equations over finite commutative rings and applications

  Hermann Tchatchiem Kamche and Hervé Talé Kalachi Applicable Algebra in Engineering, Communication and Computing, 36: 1083–1111, 2025.
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• Low-rank parity-check codes over finite commutative rings

  Hermann Tchatchiem Kamche, Hervé Talé Kalachi, Franck Rivel Kamwa Djomou, and Emmanuel Fouotsa Applicable Algebra in Engineering, Communication and Computing, 36: 819–845, 2025.
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• On the rank decoding problem over finite principal ideal rings

  Hervé Talé Kalachi and Hermann Tchatchiem Kamche Advances in Mathematics of Communications, 18(5): 1492–1513, 2024.
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• On the Generalizations of the Rank Metric over Finite Chain Rings

  Hermann Tchatchiem Kamche and Hervé Talé Kalachi Progress in Cryptology -- AFRICACRYPT 2024, LNCS 14861, 2024.
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• Generalization of low rank parity-check (LRPC) codes over the ring of integers modulo a positive integer

  Franck Rivel Kamwa Djomou, Hervé Talé Kalachi, and Emmanuel Fouotsa Arabian Journal of Mathematics, 10: 357–366, 2021.
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• On the failure of the smart approach of the GPT cryptosystem

  Hervé Talé Kalachi Cryptologia, 46(2): 167–182, 2021.
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• Polynomial-time key recovery attack on the Faure-Loidreau scheme based on Gabidulin codes

  Philippe Gaborit, Ayoub Otmani, and Hervé Talé Kalachi Designs, Codes and Cryptography, 86(7): 1391–1403, 2018.
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• Improved cryptanalysis of rank metric schemes based on Gabidulin codes

  Ayoub Otmani, Hervé Talé Kalachi, and Sélestin Ndjeya Designs, Codes and Cryptography, 86(9): 1983–1996, 2018.
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• Cryptanalysis of a public key encryption scheme based on QC-LDPC and QC-MDPC codes

  Vlad Drăgoi and Hervé Talé Kalachi IEEE Communications Letters, 22(2): 264–267, 2018.
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• Security of cryptographic protocols based on coding theory

  Hervé Talé Kalachi PhD Thesis -- University of Rouen-Normandie and University of Yaounde I, 2017.
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• Evolution of the McEliece public key encryption scheme

  Dominic Bucerzan, Vlad Drăgoi, and Hervé Talé Kalachi Innovative Security Solutions for Information Technology and Communications (SecITC 2017), pp. 129–149, 2017.
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• Square code attack on a modified Sidelnikov cryptosystem

  Ayoub Otmani and Hervé Talé Kalachi Proceedings of Codes, Cryptology, and Information Security (C2SI 2015), pp. 173–183, 2015.
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