(DataFlex) Find a Certificate by it's SHA-1 Thumbprint

See more Cert Store Examples

Finds a certificate by it's SHA-1 hex thumbprint.

Note: This example requires Chilkat v10.1.2 or later.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

Use ChilkatAx-win32.pkg

Procedure Test
    Variant vCert
Store    Handle hoCertStore
    String sThumbprint
    Boolean iBReadOnly
    Boolean iSuccess
    Variant vJson
    Handle hoJson
    Variant vCert
    Handle hoCert
    Handle hoCertStorePem
    String sTemp1

    Get Create (RefClass(cComChilkatCertStore)) To hoCertStore
    If (Not(IsComObjectCreated(hoCertStore))) Begin
        Send CreateComObject of hoCertStore
    End

    Move "12c1dd8015f3f03f7b1fa619dc24e2493ca8b4b2" To sThumbprint

    // This opens the Current User certificate store on Windows,
    // On MacOS and iOS it opens the default Keychain.
    Move True To iBReadOnly
    Get ComOpenCurrentUserStore Of hoCertStore iBReadOnly To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoCertStore To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // Find the certificate having a specific SHA1 thumbprint.
    Get Create (RefClass(cComChilkatJsonObject)) To hoJson
    If (Not(IsComObjectCreated(hoJson))) Begin
        Send CreateComObject of hoJson
    End
    Get ComUpdateString Of hoJson "thumbprint" sThumbprint To iSuccess

    Get Create (RefClass(cComChilkatCert)) To hoCert
    If (Not(IsComObjectCreated(hoCert))) Begin
        Send CreateComObject of hoCert
    End
    Get pvComObject of hoJson to vJson
    Get pvComObject of hoCert to vCert
    Get ComFindCert Of hoCertStore vJson vCert To iSuccess
    If (iSuccess = False) Begin
        Showln "Failed to find the certificate."
        Procedure_Return
    End

    Get ComSubjectCN Of hoCert To sTemp1
    Showln "Found: " sTemp1

    // -------------------------------------------------------------------------------------
    // Alternatively, one could load a certificate store object with certs from a PEM file,
    // and do the same thing..
    Get Create (RefClass(cComChilkatCertStore)) To hoCertStorePem
    If (Not(IsComObjectCreated(hoCertStorePem))) Begin
        Send CreateComObject of hoCertStorePem
    End

    Get ComLoadPemFile Of hoCertStorePem "pemFiles/certificates.pem" To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoCertStorePem To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get pvComObject of hoJson to vJson
    Get pvComObject of hoCert to vCert
    Get ComFindCert Of hoCertStore vJson vCert To iSuccess
    If (iSuccess = False) Begin
        Showln "Failed to find the certificate."
        Procedure_Return
    End

    Get ComSubjectCN Of hoCert To sTemp1
    Showln "Found: " sTemp1


End_Procedure