Je was op zoek naar: dataencipherment (Engels - Frans)

keyencipherment or dataencipherment.
ce champ doit comporter l’une des valeurs suivantes dans tous les certificats :

keyusage digitalsignature nonrepudiation keyencipherment dataencipherment keyagreement keycertsign crlsign encipheronly decipheronly privatekeyusageperiod notbefore
dérivé du hachage à 160 bits sha -1 de l'élément subjectpublickeyinfo ou, facultativement, du hachage de l'élément subjectpublickey.

2.3.3.1 asn.1 syntax keyusage extension ::= { syntax identified by keyusage ::= bit string { digitalsignature nonrepudiation keyencipherment dataencipherment keyagreement keycertsign crlsign encipheronly decipheronly
2.3.3.1 syntaxe asn.1 keyusage extension ::= { syntax identified by keyusage ::= bit string { digitalsignature nonrepudiation keyencipherment dataencipherment keyagreement keycertsign crlsign encipheronly decipheronly