# Selecting a certificate to sign a "facturae" invoice
# Instructions for use
Select the certificate with which you wish to sign from the "Available certificates" list. Alternatively, you may consult the properties of the certificate selected. They are displayed in "Details of selected certificate". You may view each specific attribute in "Details". Once the certificate has been selected, click on "Continue" ("Back" or close window if you do not wish to sign the invoice).
# Available certificates
Issued for - Holder of the certificate Issuer - Entity issuing certificate Expiry date - Certificate validity deadline Type of certificate - Type
# Details of selected certificate
It is possible to view the fields: Version, Series number, Signature algorithm, Issuer, Date of entry into force (valid from), Expiry date (valid until), who it is issued for (Subject), Public key and the different uses.
# Details
The details of a specific attribute may be viewed in this text region. On selecting a certificate, and subsequently, an attribute of this certificate, the detailed value of this attribute is displayed in this section.