You can navigate in the digital signature certificate store on your computer. The certificate store maps to the Windows PowerShell Cert: drive. The following example shows how to use Set-Location (cd) and Get-Childitem (dir, ls) to navigate the Cert: drive.
PS C:\> cd cert: PS cert:\> dir Location : CurrentUser StoreNames : {TrustedPeople, _NMSTR, Trust, REQUEST...} Location : LocalMachine StoreNames : {_NMSTR, Trust, REQUEST, TrustedPeople...} PS cert:\> cd currentuser PS cert:\currentuser> dir Name : TrustedPeople Name : _NMSTR Name : Trust Name : REQUEST Name : AuthRoot Name : ACRS Name : My Name : addressbook Name : Disallowed Name : CA Name : UserDS Name : Root Name : TrustedPublisher PS cert:\currentuser> cd authroot PS cert:\currentuser\authroot> dir Directory: Microsoft.PowerShell.Security\Certificate::currentuser\authroot Thumbprint Subject ---------- ------- F88015D3F98479E1DA553D24FD42BA3F43886AEF O=C&W HKT SecureNet CA SGC Root, C=hk F44095C238AC73FC4F77BF8F98DF70F8F091BC52 CN=Class 3TS Primary CA, O=Certplus, C=FR EF2DACCBEABB682D32CE4ABD6CB90025236C07BC O="Colegio Nacional de Correduria Publica Mexicana, A.C.", CN="Autoridad C... ... PS cert:\currentuser\authroot> get-childitem F88015D3F98479E1DA553D24FD42BA3F43886AEF Directory: Microsoft.PowerShell.Security\Certificate::currentuser\authroot Thumbprint Subject ---------- ------- F88015D3F98479E1DA553D24FD42BA3F43886AEF O=C&W HKT SecureNet CA SGC Root, C=hk PS cert:\currentuser\authroot> get-childitem F88015D3F98479E1DA553D24FD42BA3F43886AEF | format-list -property * PSPath : Microsoft.PowerShell.Security\Certificate::currentuser\authroot\F88015D3F98479E1DA553D24FD42BA3F43 886AEF PSParentPath : Microsoft.PowerShell.Security\Certificate::currentuser\authroot PSChildName : F88015D3F98479E1DA553D24FD42BA3F43886AEF PSDrive : cert PSProvider : Microsoft.PowerShell.Security\Certificate PSIsContainer : False Archived : False Extensions : {} FriendlyName : CW HKT SecureNet CA SGC Root IssuerName : System.Security.Cryptography.X509Certificates.X500DistinguishedName NotAfter : 10/16/2009 2:59:00 AM NotBefore : 6/30/1999 3:00:00 AM HasPrivateKey : False PrivateKey : PublicKey : System.Security.Cryptography.X509Certificates.PublicKey RawData : {48, 130, 2, 235...} SerialNumber : 00 SubjectName : System.Security.Cryptography.X509Certificates.X500DistinguishedName SignatureAlgorithm : System.Security.Cryptography.Oid Thumbprint : F88015D3F98479E1DA553D24FD42BA3F43886AEF Version : 1 Handle : 1577256 Issuer : O=C&W HKT SecureNet CA SGC Root, C=hk Subject : O=C&W HKT SecureNet CA SGC Root, C=hk