DATA ENCRYPTION METHOD, CRYPTOGRAPHIC SYSTEM AND ASSOCIATED COMPONENT

摘要

The invention concerns an encryption method, comprising a step which consists in formatting a clear message (m) with a formatting function ( mu ), and a step which consists in an exponentiation of the result of the preceding step using a public key (N, e) in accordance with the relationship c = mu (m) mod N, c being an encrypted message, mu (m) being the result of the formatting step, and e and N elements of the public key. The invention is characterized in that the formatting function ( mu ) is The PSS function. The invention is applicable to cryptography, for example of RSA type, for smart cards for instance.