Abstract: A method is provided for producing securing data for implementing a secured session between a first and at least a second entity based on a protocol for establishing secured sessions. The method includes setting up a third secured entity related to the first entity; generating at least a portion of the securing data within the third entity; and transmitting the securing data from the secured third entity to the first entity.

Abstract: A method is provided for decoding a signal received by a receiver including at least one reception antenna. The method includes: selecting, among at least two techniques available in the receiver, a decoding technique representative of a space/time encoding implemented upon transmission; and decoding the signal using the selected decoding technique. The selecting step takes into account at least one selection criterion.

Abstract: A method and apparatus are provided for modulating a binary source sequence including of a plurality of source words to generate modulated symbols. The method implements error-correction encoding of the plurality of source words, implementing one or more encoding modules, each implementing a separate error-correction code to generate a plurality of code words, the source words being encoded in series. The code words are interlaced to generate an interlaced sequence. The interlaced sequence is differentially modulated to generate modulated symbols. Each code word is broken down into at least one group with a number of bits equal to the base-2 logarithm of a number of states of a modulation implemented by the step of differentially modulating. The interlacing step distributes the groups such that two adjacent groups in the interlaced sequence belong to separate code words.

Abstract: A method and apparatus are provided for generating security data for implementing a secure session between a first and at least a second entity according to a secure session establishment protocol. Such a method includes: initializing a third secure entity connected to the first entity; generating at least a portion of the security data within the third entity; transmitting the generated security data from the secure third entity to the first entity; and transmitting at least a portion of the security data generated in the third secure entity to at least a previously initialized fourth secure entity connected to the third secure entity.

Abstract: A method of decoding a data signal includes progressively constructing a decoding tree, implementing at least two iterations of the following steps: selecting at least one child node of a current node belonging to a selection interval; storing the child nodes in a first stack; deleting the current node from the first stack; selecting a new current node from the first stack; and if the new current node is a leaf node, storing the path between the root node and the leaf node, in the second stack, and deleting the leaf node from the first stack; otherwise, return to the step of selecting a child node for the new current node. Moreover, the method assigns a probability of likelihood to the bits of at least one symbol of the data signal, taking account of the paths stored in the second stack, and determines a probabilistic estimation of the signal.

Abstract: A method is provided for decoding a signal received by a receiver including at least one reception antenna. The method includes: selecting, among at least two techniques available in the receiver, a decoding technique representative of a space/time encoding implemented upon transmission; and decoding the signal using the selected decoding technique. The selecting step takes into account at least one selection criterion.

Abstract: A method is provided for producing securing data for implementing a secured session between a first and at least a second entity based on a protocol for establishing secured sessions. The method includes setting up a third secured entity related to the first entity; generating at least a portion of the securing data within the third entity; and transmitting the securing data from the secured third entity to the first entity.