Installation of ClassicSys - Distribution of PrivateKeys

The following steps create and install Alice's PrivateKey :

1. Alice asks the TA for a PrivateKey giving her name, first name, address, telephone, fax, Email, ... and information to generate a specific installation Key.
2. the TA creates the public ID number of Alice.
3. based on this information, the TA generates Alice's stamp (containing Alice's public ID number, the date of request, ...)
4. the TA encrypts this stamp with it's PrivateKey to generate Alice's PrivateKey K_Alice
5. knowing K_Alice, the TA computes the inverse PrivateKey of Alice K^-1_Alice
6. the TA sends several encrypted blocks to Alice :
   • a block containing Alice's PrivateKey K_Alice encrypted with a specific one-time usable installation Key.
   • another block containing Alice's stamp encrypted with Alice's inverse PrivateKey K^-1_Alice
   • and several blocks containing the personal data related to Alice (name, address, ...) encrypted with Alice's inverse PrivateKey K^-1_Alice

What are these blocks for ?

• The first block permits Alice to construct her PrivateKey and to record it in her hardware (this is done automatically, of course).
• The next blocks decrypted with her PrivateKey permit her to verify that the received information corresponds to her personal data.