Method for verifying the integrity and authorship of texts

摘要

Method for verifying the integrity and authorship of texts with a not ausspähbaren, automatically functioning module [m], which contains a database, in which, for each subscriber an individual secret number [g] with a characterizing identifier [k] is stored, after entry of a specific identifier [k] in the database the associated secret number [g] is available, characterized in that, in the module [m] are present• a secret a symmetrical crypto-algorithm with a variable parameters, whose value is determined by g, with this algorithm a, which are entered in m cryptographic text decrypted and a to the output from m of specific text can be encrypted;• a secret one-way algorithm, with a variable parameters, whose value is determined by g, with this algorithm is made of a in m input or decrypted text a characteristic number is calculated for this text and the text can be added to [digital signature u].