| 摘要 |
<p>The present invention relates to a method for encrypting data, preferably a message, using an asymmetric encryption scheme, comprising the steps of a) Providing a first public key/secret key pair based on a first security parameter, b) Encrypting the data with the first public key, c) Generating an update key and a second public key/secret key pair based on a second security parameter and based on the first public key/secret key pair, and d) Patching the encrypted data with the generated update key to obtain patched encrypted data with a higher entropy compared with the unpatched encrypted data.</p> |
