CertficateManager provides mechanisms to obtain, load, verify, and display X509 certificates.
CertficateManager provides management functions for X.509 certificates that are used to authenticate connections to DataONE nodes over SSL. The X.509 certificates are issued by a recognized Certificate Authority, typically CILogon, and include fields that provide information about the authenticated party, including the distinguished name of the subject, the dates of validity of the certificate, and other information needed for authorization decisions. Certificate validity is determined by examining the validity of the certificate signatures for each certificate in a chain leading to a trusted root certificate. Within DataONE, the current trusted root certificate authorities are CILogon and DataONE itself.
Understanding how your identity is managed is important for working with DataONE, especially to avoid unexpected results. For example, depending your authorization status, searches may or may return only public records, or the full set of public and private records. Object and package retrievals might fail if some or all of the objects being retrieved are private. Creating or updating objects on DataONE nodes and reserving identifiers reservations might fail if your authorization certificate is missing or expired.
DataONE identifies you using CILogon-provided x509 certificates. DataONE has partnered with CILogon to provide a widely-accessible certificate issuing mechanism that allows DataONE users to use existing trusted institutional and public accounts.
CILogon recognizes many identity providers, including many universities as well as Google, so most times users new to DataONE can get certificates using one of their existing accounts. For more information about the CILogon service, see "https://cilogon.org/?skin=DataONE" .
X509 Certificates differ from typical username-password login schemes in that certificates can be used by more than one application, which is very useful when using more than one DataONE-enabled application. The certificates CILogon issues for DataONE are so-called "short-lived" certificates that currently expire 18 hours from the time of issuing. Typically you will want to download a fresh certificate the first time you interact with DataONE each day.
value of type
"character", containing a path to a custom certificate location
value of type
"character", containing the path used to temporarily obscure a certificate
CertificateManager: Create a CertificateManager object.
getCertLocation: Get the file path on disk of the client certificate file.
showClientSubject: Get DataONE Identity as Stored in the CILogon Certificate.
isCertExpired: Determine if an X.509 certificate has expired.
getCertExpires: Show the date and time when an X.509 certificate expires.
downloadCert: Open the CILogon Certificate download page in the default browser.
obscureCert: Obscure the CILogon Client Certificate.
restoreCert: Restore the CILogon client certificate by renaming it to its original location
Matthew Jones, Rob Nahf
dataone package description.
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