| 摘要 |
Method for securing a transaction performed by bank card The invention relates to a method for securing a transaction made by bank card, the transaction involving the remote provision, by a user, of data existing in a bank card in his possession, method. According to the invention, such a method comprises: - a step (10) for obtaining data existing in the bank card (CB) to be used, called textual data (DT); - a step (20) for obtaining at least one portion of the textual data (DT) in the form of an audio data stream, called a sound sample (ES), resulting from the reading of the data existing in the bank card to be used (CB); - a step (30) for computing a current voice signature from said sound sample (ES); - a step (40) for comparing said current voice signature with a reference voice signature pre-recorded and associated with the textual data (DT) of the bank card; and when the reference voice signature (SVr) differs from the current voice signature (SVc) by a value greater than the first value defined by a predetermined parameter (PPd), a step (50) for rejecting the transaction |
