Gestão de chaves

Key Slots

The PIV application can hold certificates for different purposes. For each purpose the private key and its corresponding certificate are stored in a key slot.

Slot	Application	Descrição
82-95	Retired Key Management	The private keys and certificates in these slots were used for key management applications and are still there to provide backward compatibility.
9a	Authentication	The private key and certificate in this slot are used to authenticate the cardholder.
9c	Signature	The private key and certificate in this slot are used to sign emails and files.
9d	Gestão de chaves	The private key and certificate in this slot are used to encrypt emails and files.
9e	Card Authentication	The private key and certificate in this slot are used for physical operations, such as building access or time recording. Support from the respective system is a prerequisite.

Algorithms

The PIV application uses asymmetric and symmetric algorithms. The asymmetric algorithms are used for the user private keys and the symmetric algorithms for the management key.

Supported asymmetric key algorithms:

• RSA 2048

• nistp256

Supported symmetric key algorithms:

• AES 256

• 3DES (TDES)

Aviso

It is not recommended to use the 3DES (TDES) algorithm.

Gerar chave

The PIV application can generate a new private key on the Nitrokey.

The command below will create private key in key slot 9a for the user with the subject name John Doe and subject alternative name jd@nitrokey.local.

nitropy nk3 piv generate-key --key-slot 9a --subject-name "John Doe" --subject-alt-name-upn "jd@nitrokey.local"