| 摘要 |
In order to determine a result of a modular exponentiation, a randomization auxiliary number based on the product of the public key and of the private key is set to less than "1" in order to randomize the exponent. This randomization auxiliary number can be derived without special functionalities from the private RSA data record. This enables an low-effort exponent randomization to be universally carried out for each security protocol in order to carry out a digital signature that is secure from side channel attacks.
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