INSTALLATION OF THE CERTIFICATES FOR T2U 
Trust to User uses two certificate memory (Certificate net curtain): T2U and T2UDecrypt. 
The certificate memory (Certificate net curtain) T2U is to exist to that on each computer, on that 
T2U-dienst runs. The certificate memory contains certificates, which uses for Trust to User 
will can. Those are either certificates of T2U-administratoren, with those packages 
are marked or a superordinate certificate in the certification chain. For example 
it could be a certificate of the certification body of the enterprise (see Abb.86). 
The certificate memory T2UDecrypt must be present on the computer with T2U-admin, 
then only if one uses the coding. To the coding of data 
one uses the public key from the certificate, from the certificate memory 
T2UDecrypt. 
Abb. 88 
An appropriate certificate with the private key is into "own ones 
Certificates "certificate memory with" certificates - current user "for the T?Dienstkonto 
available its. One makes simplest by producing of the 
central profile for the T2U-dienstkonto. 
One knows the certificate, which is suitable for the coding, e.g. with MakeCert.exe 
provide (see chapter production of a test certificate with the help of the MakeCert.exe). 
If one provides a certificate with the help of the MakeCert.exe for coding purposes, 
one should use the key sky exchange. 
When using Microsoft certification services (Certificate services) one can 
alternatively the certificate, which is suitable for the coding, over any to 
Coding suitable certificate collecting main request. For example for it the user is  
Certificate collecting main suitably. 
It is recommended urgently that the certificate in profile for the T2U-dienstkonto not 
to be exportable should. We recommend to provide first a exportable certificate it too 
export and well to keep. Afterwards this certificate should into the profile for the T?Dienstkonto 
are imported. With the import one should not the certificate however as 
manufacture exportable.  

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