Installation of ClassicSys - Distribution of PrivateKeys
The following steps create and install Alice's PrivateKey :
- Alice asks the TA for a PrivateKey giving her name, first
name, address, telephone, fax, Email, ... and information to generate
a specific installation Key.
- the TA creates the public ID number of Alice.
- based on this information, the TA generates Alice's stamp
(containing Alice's public ID number, the date of request, ...)
- the TA encrypts this stamp with it's PrivateKey to generate
Alice's PrivateKey KAlice
- knowing KAlice, the TA computes the inverse PrivateKey
of Alice K-1Alice
- the TA sends several encrypted blocks to Alice :
- a block containing Alice's PrivateKey KAlice encrypted
with a specific one-time usable installation Key.
- another block containing Alice's stamp encrypted with Alice's
inverse PrivateKey K-1Alice
- and several blocks containing the personal data related to
Alice (name, address, ...) encrypted with Alice's inverse PrivateKey
K-1Alice
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.