TrustedRoots C# Reference Documentation
TrustedRoots
Current Version: 11.5.0
Chilkat.TrustedRoots
Add root or CA certificates that should be trusted by Chilkat validation
operations.
Load one or more trusted CA certificates from PEM bundle files used by
many TLS and certificate-validation workflows.
Import trusted certificates from a
Choose whether Chilkat should also trust the operating system's CA root
certificates.
Control whether self-signed server certificates are rejected or accepted
during certificate validation.
Activate the configured trusted-root set so it is used by Chilkat classes
that perform TLS or signature certificate validation.
For an extended overview, see
TrustedRoots Class Overview.
Configure the trusted root certificates used by Chilkat certificate validation.
Chilkat.TrustedRoots manages a collection of trusted CA and
self-signed root certificates used Chilkat-wide for PKCS7/CMS signature
validation and SSL/TLS server certificate validation. It can add individual
certificates, import trusted certificates from a Java keystore, load PEM CA
bundles, activate or deactivate the trusted-root set, and control whether
system CA roots and self-signed server certificates are trusted.
Custom trusted roots
PEM CA bundles
Java keystore import
JavaKeyStore when trust
anchors are maintained in JKS-style storage.
System CA root control
Self-signed certificate policy
Activate Chilkat-wide trust
TrustedRoots object, add trusted certificates or load a
PEM CA bundle, configure whether system roots and self-signed certificates
should be trusted, then call Activate. Treat trusted roots as
Chilkat-wide validation configuration, not as private state for a single
object.
Object Creation
Chilkat.TrustedRoots obj = new Chilkat.TrustedRoots();
Properties
DebugLogFilePath
If set to a file path, this property logs the LastErrorText of each Chilkat method or property call to the specified file. This logging helps identify the context and history of Chilkat calls leading up to any crash or hang, aiding in debugging.
Enabling the VerboseLogging property provides more detailed information. This property is mainly used for debugging rare instances where a Chilkat method call causes a hang or crash, which should generally not happen.
Possible causes of hangs include:
- A timeout property set to 0, indicating an infinite timeout.
- A hang occurring within an event callback in the application code.
- An internal bug in the Chilkat code causing the hang.
LastErrorHtml
Provides HTML-formatted information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.
topLastErrorText
Provides plain text information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.
LastErrorXml
Provides XML-formatted information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.
topLastMethodSuccess
Indicates the success or failure of the most recent method call: true means success, false means failure. This property remains unchanged by property setters or getters. This method is present to address challenges in checking for null or Nothing returns in certain programming languages. Note: This property does not apply to methods that return integer values or to boolean-returning methods where the boolean does not indicate success or failure.
NumCerts
The number of certificates explicitly contained in this object. The count includes certificates added by AddCert, AddJavaKeyStore, and LoadCaCertsPem.
Use indexes from 0 through NumCerts - 1 with CertAt.
TrustSystemCaRoots. It reports only the certificates stored in this object.
RejectSelfSignedCerts
Controls the special case in which an SSL/TLS server presents a certificate chain containing exactly one certificate and that certificate is self-signed. The default value is .
false
| Value | Behavior |
|---|---|
| Do not reject a one-certificate TLS chain solely because the certificate is self-signed. |
| Reject TLS server chains consisting of one self-signed certificate. |
This property applies to the TLS server-certificate case described above. It does not reject a self-signed CA certificate merely because that certificate appears as the trust anchor above a longer chain.
TrustSystemCaRoots
Controls whether operating-system CA roots are included when this object's trust configuration is activated. The default value is .
true
| Value | Behavior |
|---|---|
| Trust explicitly added certificates and the system-provided CA roots available to Chilkat. |
| Do not automatically trust system-provided CA roots; use the explicitly configured collection and the selected self-signed-certificate policy. |
On Windows, system roots come from registry-based certificate stores. On Linux, Chilkat may use a system CA bundle such as /etc/ssl/certs/ca-certificates.crt when available.
System roots are not added to this object's explicit collection and therefore are not included in NumCerts or returned by CertAt.
VerboseLogging
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.
Version
Methods
Activate
Activates this object's trust configuration for Chilkat-wide certificate validation. The active configuration includes:
- Certificates explicitly added to this object by
AddCert,AddJavaKeyStore, orLoadCaCertsPem. - Operating-system CA roots when
TrustSystemCaRootsis.true - The self-signed TLS certificate policy selected by
RejectSelfSignedCerts.
After activation, Chilkat classes that validate PKCS7/CMS signatures or SSL/TLS server certificate chains use this trust configuration. Returns if the configuration was activated successfully; otherwise returns true.false
AddCert
Adds the certificate in cert to this object's explicit trusted-certificate collection. The certificate is subsequently treated as a trust anchor when this configuration is activated.
Returns if the certificate was added successfully; otherwise returns true.false
AddJavaKeyStore
Adds the certificates designated as trusted entries in the keystore JavaKeyStore to this object's explicit trusted-certificate collection.
Private keys and secret keys are not imported. Returns if the trusted certificates were added successfully; otherwise returns true.false
Returns true for success, false for failure.
AddJavaKeyStoreAsync (C#) (PowerShell)
Creates an asynchronous task to call the AddJavaKeyStore method with the arguments provided.
Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.
Returns null on failure
CertAt
Copies the certificate at zero-based index into the caller-supplied Cert object in cert.
Valid indexes are from 0 through NumCerts - 1. Returns if the certificate was retrieved successfully; otherwise returns true, such as when the index is outside the valid range.false
This method enumerates only certificates explicitly contained in this TrustedRoots object. Operating-system roots enabled through TrustSystemCaRoots are not included.
Returns true for success, false for failure.
topDeactivate
Deactivates the previously activated Chilkat-wide trusted-root configuration. After deactivation, roots and single-certificate self-signed certificates are implicitly trusted.
Returns if the active configuration was deactivated successfully; otherwise returns true.false
Deactivate only when implicitly trusting arbitrary roots and self-signed certificates is intentional and acceptable for the application.
Returns true for success, false for failure.
topLoadCaCertsPem
Loads one or more PEM-encoded certificates from the file at path and adds them to this object's explicit trusted-certificate collection. A CA bundle normally contains consecutive -----BEGIN CERTIFICATE----- / -----END CERTIFICATE----- blocks.
This method can load a curated application bundle, a Mozilla-derived CA bundle, or a platform bundle such as /etc/ssl/certs/ca-certificates.crt when that file exists. Returns if the bundle was loaded successfully; otherwise returns true.false
LoadCaCertsPemAsync (C#) (PowerShell)
Creates an asynchronous task to call the LoadCaCertsPem method with the arguments provided.
Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.
Returns null on failure
LoadTaskCaller
Associates task with the object that initiated the task's asynchronous method call. This supports Chilkat's asynchronous task infrastructure and is not normally called directly by application code.
Returns if the task caller was loaded successfully; otherwise returns true.false
Returns true for success, false for failure.
topEvents
AbortCheck
Enables a method call to be aborted by triggering the AbortCheck event at intervals defined by the HeartbeatMs property. If HeartbeatMs is set to its default value of 0, no events will occur. For instance, set HeartbeatMs to 200 to trigger 5 AbortCheck events per second.
Chilkat .NET Framework Event Implementation
Args are passed using Chilkat.AbortCheckEventArgs
Event callback implementation:
private void trustedroots_OnAbortCheck(object sender, Chilkat.AbortCheckEventArgs args) { // application code goes here. }
To add an event handler:
Chilkat.TrustedRoots trustedroots = new Chilkat.TrustedRoots(); trustedroots.OnAbortCheck += trustedroots_OnAbortCheck;
Chilkat .NET Core Event Implementation
Event callback implementation:
public void handleAbortCheck(out bool abort)
{
// application code goes here.
}
To add an event handler:
Chilkat.TrustedRoots trustedroots = new Chilkat.TrustedRoots(); // ... Chilkat.TrustedRoots.AbortCheck abortCheck = new Chilkat.TrustedRoots.AbortCheck(handleAbortCheck); trustedroots.setAbortCheckCb(abortCheck);
PercentDone
This provides the percentage completion for any method involving network communications or time-consuming processing, assuming the progress can be measured as a percentage. This event is triggered only when it's possible and logical to express the operation's progress as a percentage. The pctDone argument will range from 1 to 100. For methods that finish quickly, the number of PercentDone callbacks may vary, but the final callback will have pctDone equal to 100. For longer operations, callbacks will not exceed one per percentage point (e.g., 1, 2, 3, ..., 98, 99, 100).
The PercentDone callback also acts as an AbortCheck event. For fast methods where PercentDone fires, an AbortCheck event may not trigger since the PercentDone callback already provides an opportunity to abort. For longer operations, where time between PercentDone callbacks is extended, AbortCheck callbacks enable more responsive operation termination.
To abort the operation, set the abort output argument to true. This will cause the method to terminate and return a failure status or corresponding failure value.
Chilkat .NET Framework Event Implementation
Args are passed using Chilkat.PercentDoneEventArgs
Event callback implementation:
private void trustedroots_OnPercentDone(object sender, Chilkat.PercentDoneEventArgs args) { // application code goes here. }
To add an event handler:
Chilkat.TrustedRoots trustedroots = new Chilkat.TrustedRoots(); trustedroots.OnPercentDone += trustedroots_OnPercentDone;
Chilkat .NET Core Event Implementation
Event callback implementation:
public void handlePercentDone(int pctDone, out bool abort)
{
// application code goes here.
}
To add an event handler:
Chilkat.TrustedRoots trustedroots = new Chilkat.TrustedRoots(); // ... Chilkat.TrustedRoots.PercentDone percentDone = new Chilkat.TrustedRoots.PercentDone(handlePercentDone); trustedroots.setPercentDoneCb(percentDone);
ProgressInfo
This event callback provides tag name/value pairs that detail what occurs during a method call. To discover existing tag names, create code to handle the event, emit the pairs, and review them. Most tag names are self-explanatory.
Note: Some Chilkat methods don't fire any ProgressInfo events.
Chilkat .NET Framework Event Implementation
Args are passed using Chilkat.ProgressInfoEventArgs
Event callback implementation:
private void trustedroots_OnProgressInfo(object sender, Chilkat.ProgressInfoEventArgs args) { // application code goes here. }
To add an event handler:
Chilkat.TrustedRoots trustedroots = new Chilkat.TrustedRoots(); trustedroots.OnProgressInfo += trustedroots_OnProgressInfo;
Chilkat .NET Core Event Implementation
Event callback implementation:
public void handleProgressInfo(string name, string value)
{
// application code goes here.
}
To add an event handler:
Chilkat.TrustedRoots trustedroots = new Chilkat.TrustedRoots(); // ... Chilkat.TrustedRoots.ProgressInfo progressInfo = new Chilkat.TrustedRoots.ProgressInfo(handleProgressInfo); trustedroots.setProgressInfoCb(progressInfo);
TaskCompleted
Called from the background thread when an asynchronous task completes.
Chilkat .NET Framework Event Implementation
Args are passed using Chilkat.TaskCompletedEventArgs
Event callback implementation:
private void trustedroots_OnTaskCompleted(object sender, Chilkat.TaskCompletedEventArgs args) { // application code goes here. }
To add an event handler:
Chilkat.TrustedRoots trustedroots = new Chilkat.TrustedRoots(); trustedroots.OnTaskCompleted += trustedroots_OnTaskCompleted;
Chilkat .NET Core Event Implementation
Event callback implementation:
public void handleTaskIdCompleted(int taskId)
{
// application code goes here.
}
To add an event handler:
Chilkat.TrustedRoots trustedroots = new Chilkat.TrustedRoots(); // ... Chilkat.TrustedRoots.TaskIdCompleted taskIdCompleted = new Chilkat.TrustedRoots.TaskIdCompleted(handleTaskIdCompleted); trustedroots.setTaskIdCompletedCb(taskIdCompleted);
Deprecated
GetCert
Returns the certificate at zero-based index in this object's explicitly added certificate collection.
This method is deprecated. New applications should call CertAt, which returns an explicit success/failure result and stores the certificate in a caller-supplied Cert object.
Valid indexes are from 0 through NumCerts - 1. Operating-system roots enabled by TrustSystemCaRoots are not part of this indexed collection.
Returns null on failure