A CertPathChecker implementation is typically created to extend a certification path validation algorithm. For example, an implementation may check for and process a critical private extension of each certificate in a certification path.

Summary

Public methods
abstract Unit	`check(cert: Certificate!)` Performs the check(s) on the specified certificate using its internal state.
abstract Unit	`init(forward: Boolean)` Initializes the internal state of this `CertPathChecker`.
abstract Boolean	`isForwardCheckingSupported()` Indicates if forward checking is supported.

Public methods

check

Added in API level 24

abstract fun check(cert: Certificate!): Unit

Performs the check(s) on the specified certificate using its internal state. The certificates are presented in the order specified by the init method.

Parameters
`cert`	Certificate!: the `Certificate` to be checked

Exceptions
`java.security.cert.CertPathValidatorException`	if the specified certificate does not pass the check

init

Added in API level 24

abstract fun init(forward: Boolean): Unit

Initializes the internal state of this CertPathChecker.

The forward flag specifies the order that certificates will be passed to the check method (forward or reverse).

Parameters
`forward`	Boolean: the order that certificates are presented to the `check` method. If `true`, certificates are presented from target to trust anchor (forward); if `false`, from trust anchor to target (reverse).

Exceptions
`java.security.cert.CertPathValidatorException`	if this `CertPathChecker` is unable to check certificates in the specified order

isForwardCheckingSupported

Added in API level 24

abstract fun isForwardCheckingSupported(): Boolean

Indicates if forward checking is supported. Forward checking refers to the ability of the CertPathChecker to perform its checks when certificates are presented to the check method in the forward direction (from target to trust anchor).

Return
`Boolean`	`true` if forward checking is supported, `false` otherwise

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Last updated 2025-02-10 UTC.

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