FOCS '02 Proceedings of the 43rd Symposium on Foundations of Computer Science
Generalized Compact Knapsacks, Cyclic Lattices, and Efficient One-Way Functions
Computational Complexity
An LLL Algorithm with Quadratic Complexity
SIAM Journal on Computing
Efficient Public Key Encryption Based on Ideal Lattices
ASIACRYPT '09 Proceedings of the 15th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
Generalized compact knapsacks are collision resistant
ICALP'06 Proceedings of the 33rd international conference on Automata, Languages and Programming - Volume Part II
Efficient collision-resistant hashing from worst-case assumptions on cyclic lattices
TCC'06 Proceedings of the Third conference on Theory of Cryptography
Constructions of codes from number fields
IEEE Transactions on Information Theory
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We present a variation of the modular algorithm for computing the Hermite Normal Form of an OK-module presented by Cohen [4], where OK is the ring of integers of a number field K. An approach presented in [4] based on reductions modulo ideals was conjectured to run in polynomial time by Cohen, but so far, no such proof was available in the literature. In this paper, we present a modification of the approach of [4] to prevent the coefficient swell and we rigorously assess its complexity with respect to the size of the input and the invariants of the field K.