| 摘要 |
A method of exchanging data between a data processing system and an electronic entity, characterized by the following steps: the electronic entity sending the data processing system a certificate (CASD_CERT) associating an identifier of the electronic entity with a public key (CASD_PK) associated with a secret key (CASD_SK) stored in the electronic entity in a set of reserved keys associated with a first security domain; the data processing system verifying the association of the identifier and the public key (CASD_PK) via the certificate (CASD_CERT); and an application of the electronic entity separate from the first security domain and the data processing system exchanging data encrypted by the public key (CASD_PK) or signed by the first security domain by the secret key (CASD_SK) stored in the electronic entity.
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