CertStore DataFlex Reference Documentation

CertStore

Current Version: 9.5.0.73

Represents a collection of certificates. The certificates may be loaded from a PFX (PKCS#12) or from a Windows-based certificate store.

Many of the methods of this class are only applicable when running on a MS Windows operating system. The methods for opening, creating, and modifying Windows-based certificate stores (registry-based, file-based, and memory-based) are (of course) Windows-only. However, the methods for loading certs from PFX (PKCS#12), are valid on all supported operating systems, including Linux, MAC OS X, Windows, etc.

Object Creation

// (Dataflex programs use the 32-bit Chilkat ActiveX)
Handle hoCertStore
Get Create(RefClass(cComChilkatCertStore)) to hoCertStore

Properties

AvoidWindowsPkAccess
Function ComAvoidWindowsPkAccess Returns Boolean
Procedure Set ComAvoidWindowsPkAccess Boolean value

Applies only when running on a Microsoft Windows operating system. If True, then any method that returns a certificate will not try to also access the associated private key, assuming one exists. This is useful if the certificate was installed with high-security such that a private key access would trigger the Windows OS to display a security warning dialog. The default value of this property is False.

top
DebugLogFilePath
Function ComDebugLogFilePath Returns String
Procedure Set ComDebugLogFilePath String value

If set to a file path, causes each Chilkat method or property call to automatically append it's LastErrorText to the specified log file. The information is appended such that if a hang or crash occurs, it is possible to see the context in which the problem occurred, as well as a history of all Chilkat calls up to the point of the problem. The VerboseLogging property can be set to provide more detailed information.

This property is typically used for debugging the rare cases where a Chilkat method call hangs or generates an exception that halts program execution (i.e. crashes). A hang or crash should generally never happen. The typical causes of a hang are:

  1. a timeout related property was set to 0 to explicitly indicate that an infinite timeout is desired,
  2. the hang is actually a hang within an event callback (i.e. it is a hang within the application code), or
  3. there is an internal problem (bug) in the Chilkat code that causes the hang.

top
LastBinaryResult
Function ComLastBinaryResult Returns Variant
Introduced in version 9.5.0.52

The binary data returned by the last (binary data returning) method called. Only available if Chilkat.Global.KeepBinaryResult is set to True. This provides a means for obtaining large varbinary results in the SQL Server environment (where limitations exist in getting large amounts of data returned by method calls, but where temp tables can be used for binary properties).

top
LastErrorHtml
Function ComLastErrorHtml Returns String

Provides information in HTML format about the last method/property called. If a method call returns a value indicating failure, or behaves unexpectedly, examine this property to get more information.

top
LastErrorText
Function ComLastErrorText Returns String

Provides information in plain-text format about the last method/property called. If a method call returns a value indicating failure, or behaves unexpectedly, examine this property to get more information.

top
LastErrorXml
Function ComLastErrorXml Returns String

Provides information in XML format about the last method/property called. If a method call returns a value indicating failure, or behaves unexpectedly, examine this property to get more information.

top
LastMethodSuccess
Function ComLastMethodSuccess Returns Boolean
Procedure Set ComLastMethodSuccess Boolean value
Introduced in version 9.5.0.52

Indicate whether the last method call succeeded or failed. A value of True indicates success, a value of False indicates failure. This property is automatically set for method calls. It is not modified by property accesses. The property is automatically set to indicate success for the following types of method calls:

  • Any method that returns a string.
  • Any method returning a Chilkat object, binary bytes, or a date/time.
  • Any method returning a standard boolean status value where success = True and failure = False.
  • Any method returning an integer where failure is defined by a return value less than zero.

Note: Methods that do not fit the above requirements will always set this property equal to True. For example, a method that returns no value (such as a "void" in C++) will technically always succeed.

top
LastStringResult
Function ComLastStringResult Returns String
Introduced in version 9.5.0.52

The string return value of the last (string returning) method called. Only available if Chilkat.Global.KeepStringResult is set to True. This provides a means for obtaining large string results in the SQL Server environment (where limitations exist in getting long strings returned by method calls, but where temp tables can be used for string properties).

top
LastStringResultLen
Function ComLastStringResultLen Returns Integer
Introduced in version 9.5.0.53

The length, in characters, of the string contained in the LastStringResult property.

top
NumCertificates
Function ComNumCertificates Returns Integer

The number of certificates held in the certificate store.

top
NumEmailCerts
Function ComNumEmailCerts Returns Integer

(This property only available on Microsoft Windows operating systems.)
The number of certificates that can be used for sending secure email within this store.

top
VerboseLogging
Function ComVerboseLogging Returns Boolean
Procedure Set ComVerboseLogging Boolean value

If set to True, then the contents of LastErrorText (or LastErrorXml, or LastErrorHtml) may contain more verbose information. The default value is False. Verbose logging should only be used for debugging. The potentially large quantity of logged information may adversely affect peformance.

top
Version
Function ComVersion Returns String

Version of the component/library, such as "9.5.0.63"

top

Methods

AddCertificate
Function ComAddCertificate cComChilkatCert cert Returns Boolean

(This method only available on Microsoft Windows operating systems.)
Adds a certificate to the store. If the certificate is already in the store, it is updated with the new information.

Returns True for success, False for failure.

top
CreateFileStore
Function ComCreateFileStore String filename Returns Boolean

(This method only available on Microsoft Windows operating systems.)
Creates a new file-based certificate store. Certificates may be saved to this store by calling AddCertificate.

Returns True for success, False for failure.

top
CreateMemoryStore
Function ComCreateMemoryStore Returns Boolean

(This method only available on Microsoft Windows operating systems.)
Creates an in-memory certificate store. Certificates may be added by calling AddCertificate.

Returns True for success, False for failure.

top
CreateRegistryStore
Function ComCreateRegistryStore String regRoot String regPath Returns Boolean

(This method only available on Microsoft Windows operating systems.)
Creates a registry-based certificate store. regRoot must be "CurrentUser" or "LocalMachine". regPath is a registry path such as "Software/MyApplication/Certificates".

Returns True for success, False for failure.

top
FindCertByRfc822Name
Function ComFindCertByRfc822Name String name Returns cComChilkatCert

Locates and returns a certificate by its RFC 822 name.

If multiple certificates match, then non-expired certificates will take precedence over expired certificates. In other words, Chilkat will aways return the non-expired certificate over the expired certificate.

Returns null on failure

top
FindCertBySerial
Function ComFindCertBySerial String str Returns cComChilkatCert

Finds and returns the certificate that has the matching serial number.

Returns null on failure.

Returns null on failure

top
FindCertBySha1Thumbprint
Function ComFindCertBySha1Thumbprint String str Returns cComChilkatCert

Finds a certificate by it's SHA-1 thumbprint. The thumbprint is a hexidecimal string.

Returns null on failure.

Returns null on failure

More Information and Examples
top
FindCertBySubject
Function ComFindCertBySubject String str Returns cComChilkatCert

Finds a certificate where one of the Subject properties (SubjectCN, SubjectE, SubjectO, SubjectOU, SubjectL, SubjectST, SubjectC) matches exactly (but case insensitive) with the passed string. A match in SubjectCN will be tried first, followed by SubjectE, and SubjectO. After that, the first match found in SubjectOU, SubjectL, SubjectST, or SubjectC, but in no guaranteed order, is returned. All matches are case insensitive.

Returns null on failure.

Returns null on failure

top
FindCertBySubjectCN
Function ComFindCertBySubjectCN String str Returns cComChilkatCert

Finds a certificate where the SubjectCN property (common name) matches exactly (but case insensitive) with the passed string

Returns null on failure.

Returns null on failure

top
FindCertBySubjectE
Function ComFindCertBySubjectE String str Returns cComChilkatCert

Finds a certificate where the SubjectE property (email address) matches exactly (but case insensitive) with the passed string. This function differs from FindCertForEmail in that the certificate does not need to match the ForSecureEmail property.

Returns null on failure.

Returns null on failure

top
FindCertBySubjectO
Function ComFindCertBySubjectO String str Returns cComChilkatCert

Finds a certificate where the SubjectO property (organization) matches exactly (but case insensitive) with the passed string.

Returns null on failure.

Returns null on failure

top
FindCertForEmail
Function ComFindCertForEmail String emailAddress Returns cComChilkatCert

(This method only available on Microsoft Windows operating systems.)
Finds a certificate that can be used to send secure email to the passed email address. A certificate matches only if the ForSecureEmail property is TRUE, and the email address matches exactly (but case insensitive) with the SubjectE property. Returns NULL if no matches are found.

Returns null on failure.

Returns null on failure

top
GetCertificate
Function ComGetCertificate Integer index Returns cComChilkatCert

Returns the Nth certificate in the store. The first certificate is at index 0.

Returns null on failure.

Returns null on failure

top
GetEmailCert
Function ComGetEmailCert Integer index Returns cComChilkatCert

(This method only available on Microsoft Windows operating systems.)
Returns the Nth email certificate in the store. The first certificate is at index 0. Use the NumEmailCertificates property to get the number of email certificates.

Returns null on failure.

Returns null on failure

top
LoadPemFile
Function ComLoadPemFile String pemPath Returns Boolean

Loads the certificates contained within a PEM formatted file.

Returns True for success, False for failure.

top
LoadPemStr
Function ComLoadPemStr String pemString Returns Boolean

Loads the certificates contained within an in-memory PEM formatted string.

Returns True for success, False for failure.

top
LoadPfxData
Function ComLoadPfxData Variant pfxData String password Returns Boolean

Loads a PFX from an in-memory image of a PFX file. Once loaded, the certificates within the PFX may be searched via the Find* methods. It is also possible to iterate from 0 to NumCertficates-1, calling GetCertificate for each index, to retrieve each certificate within the PFX.

Returns True for success, False for failure.

top
LoadPfxFile
Function ComLoadPfxFile String pfxFilename String password Returns Boolean

Loads a PFX file. Once loaded, the certificates within the PFX may be searched via the Find* methods. It is also possible to iterate from 0 to NumCertficates-1, calling GetCertificate for each index, to retrieve each certificate within the PFX.

Returns True for success, False for failure.

top
OpenChilkatStore
Function ComOpenChilkatStore Boolean readOnly Returns Boolean

(This method only available on Microsoft Windows operating systems.)
Opens the registry-based local machine certificate store having the path "Software/Chilkat/SystemCertificates". If the certificate store does not exist, it is automatically created. Setting readOnly = True causes the certificate store to be opened read-only, and will prevent "permission denied" errors caused by the need for read-write permission.

Once loaded, the certificates within the store may be searched via the Find* methods. An application may also iterate from 0 to NumCertficates-1 and call GetCertificate to access each certificate by index.

Returns True for success, False for failure.

top
OpenCurrentUserStore
Function ComOpenCurrentUserStore Boolean readOnly Returns Boolean

(This method is only available on Microsoft Windows operating systems.)
Opens the registry-based Current-User\Personal certificate store. Set readOnly = True if only fetching certificates and not updating the certificate store (i.e. certificates will not be added or removed). Setting readOnly = True causes the certificate store to be opened read-only, and will prevent "permission denied" errors caused by the need for read-write permission.

Once loaded, the certificates within the store may be searched via the Find* methods. An application may also iterate from 0 to NumCertficates-1 and call GetCertificate to access each certificate by index.

Returns True for success, False for failure.

top
OpenFileStore
Function ComOpenFileStore String filename Boolean readOnly Returns Boolean

(This method only available on Microsoft Windows operating systems.)
Opens a file-based certificate store.

Once loaded, the certificates within the store may be searched via the Find* methods. An application may also iterate from 0 to NumCertficates-1 and call GetCertificate to access each certificate by index.

Returns True for success, False for failure.

top
OpenLocalSystemStore
Function ComOpenLocalSystemStore Boolean readOnly Returns Boolean

(This method is only available on Microsoft Windows operating systems.)
Opens the registry-based Local-Computer\Personal certificate store. Set readOnly = True if only fetching certificates and not updating the certificate store (i.e. certificates will not be added or removed). Setting readOnly = True causes the certificate store to be opened read-only, and will prevent "permission denied" errors caused by the need for read-write permission.

Once loaded, the certificates within the store may be searched via the Find* methods. An application may also iterate from 0 to NumCertficates-1 and call GetCertificate to access each certificate by index.

Returns True for success, False for failure.

top
OpenOutlookStore
Function ComOpenOutlookStore Boolean readOnly Returns Boolean

(This method is only available on Microsoft Windows operating systems.)
Opens the registry-based Current-User\Other People certificate store. This is the certificate store use by Microsot Outlook. Set readOnly = True if only fetching certificates and not updating the certificate store (i.e. certificates will not be added or removed). Setting readOnly = True causes the certificate store to be opened read-only, and will prevent "permission denied" errors caused by the need for read-write permission.

Once loaded, the certificates within the store may be searched via the Find* methods. An application may also iterate from 0 to NumCertficates-1 and call GetCertificate to access each certificate by index.

Returns True for success, False for failure.

top
OpenRegistryStore
Function ComOpenRegistryStore String regRoot String regPath Boolean readOnly Returns Boolean

(This method only available on Microsoft Windows operating systems.)
Opens an arbitrary registry-based certificate store. regRoot must be "CurrentUser" or "LocalMachine". regPath is a registry path such as "Software/MyApplication/Certificates".

Setting readOnly = True causes the certificate store to be opened read-only, and will prevent "permission denied" errors caused by the need for read-write permission.

Once loaded, the certificates within the store may be searched via the Find* methods. An application may also iterate from 0 to NumCertficates-1 and call GetCertificate to access each certificate by index.

Returns True for success, False for failure.

top
OpenWindowsStore
Function ComOpenWindowsStore String storeLocation String storeName Boolean readOnly Returns Boolean
Introduced in version 9.5.0.49

(This method only available on Microsoft Windows operating systems.)
Opens a Microsoft Windows certificate store. storeLocation must be "CurrentUser" or "LocalMachine". storeName is the name of the certificate store to open. It may be any of the following:

  • AddressBook: Certificate store for other users.
  • AuthRoot: Certificate store for third-party certification authorities (CAs).
  • CertificationAuthority: Certificate store for intermediate certification authorities (CAs).
  • Disallowed: Certificate store for revoked certificates.
  • My: Certificate store for personal certificates.
  • Root: Certificate store for trusted root certification authorities (CAs).
  • TrustedPeople: Certificate store for directly trusted people and resources.
  • TrustedPublisher: Certificate store for directly trusted publishers.

Setting readOnly = True causes the certificate store to be opened read-only, and will prevent "permission denied" errors caused by the need for read-write permission.

Once loaded, the certificates within the store may be searched via the Find* methods. An application may also iterate from 0 to NumCertficates-1 and call GetCertificate to access each certificate by index.

Returns True for success, False for failure.

top
RemoveCertificate
Function ComRemoveCertificate cComChilkatCert cert Returns Boolean

(This method only available on Microsoft Windows operating systems.)
Removes the passed certificate from the store. The certificate object passed as the argument can no longer be used once removed.

Returns True for success, False for failure.

top