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Home -> Cog -> Distribution -> 1.1 -> Api-new -> Org -> Globus -> Gsi -> Proxy

org.globus.gsi.proxy
Class ProxyPathValidator

java.lang.Object
  |
  +--org.globus.gsi.proxy.ProxyPathValidator

public class ProxyPathValidator

extends Object

Performs certificate/proxy path validation. It supports both old style Globus proxy as well as the new proxy certificate format. It checks BasicConstraints, KeyUsage, and ProxyCertInfo (if applicable) extensions. It also provides a callback interface for custom policy checking of restricted proxies.
Currently, does not perform the following checks for the new proxy certificates:

1. Check if proxy serial number is unique (and the version number)
2. Check for empty subject names

Constructor Summary

ProxyPathValidator()

Method Summary

protected void	checkIdentity(X509Certificate cert, int certType)
protected void	checkKeyUsage(TBSCertificateStructure issuer, X509Certificate[] certPath, int index)
protected void	checkProxyConstraints(TBSCertificateStructure proxy, TBSCertificateStructure issuer, X509Certificate checkedProxy)
protected void	checkRestrictedProxy(TBSCertificateStructure proxy, X509Certificate[] certPath, int index)
protected void	checkUnsupportedCriticalExtensions(TBSCertificateStructure crt, int certType, X509Certificate checkedProxy)
protected int	getCAPathConstraint(TBSCertificateStructure crt)
String	getIdentity() Returns the subject name of the identity certificate (in the Globus format)
X509Certificate	getIdentityCertificate() Returns the identity certificate.
protected boolean[]	getKeyUsage(TBSCertificateStructure crt)
protected ProxyCertInfo	getProxyCertInfo(TBSCertificateStructure crt)
protected int	getProxyPathConstraint(TBSCertificateStructure crt)
ProxyPolicyHandler	getProxyPolicyHandler(String id) Retrieves a restricted proxy policy handler for a given policy id.
boolean	isLimited() Returns if the validated proxy path is limited.
ProxyPolicyHandler	removeProxyPolicyHandler(String id) Removes a restricted proxy policy handler.
void	reset() Resets the internal state.
ProxyPolicyHandler	setProxyPolicyHandler(String id, ProxyPolicyHandler handler) Sets a restricted proxy policy handler.
void	validate(X509Certificate[] certPath) Performs certificate path validation.
void	validate(X509Certificate[] certPath, TrustedCertificates trustedCerts) Performs certificate path validation.
void	validate(X509Certificate[] certPath, X509Certificate[] trustedCerts) Performs all certificate path validation including checking of the signatures, validity of the certificates, extension checking, etc. It uses the PureTLS code to do basic signature & certificate validity checking and then calls validate for further checks.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ProxyPathValidator

public ProxyPathValidator()

Method Detail

isLimited

public boolean isLimited()

Returns if the validated proxy path is limited. A proxy path is limited when a limited proxy is present anywhere after the first non-impersonation proxy certificate.

Returns:

true if the validated path is limited

getIdentityCertificate

public X509Certificate getIdentityCertificate()

Returns the identity certificate. The first certificates in the path that is not an impersonation proxy, e.g. it could be a restricted proxy or end-entity certificate

Returns:

X509Certificate the identity certificate

getIdentity

public String getIdentity()

Returns the subject name of the identity certificate (in the Globus format)

Returns:

the subject name of the identity certificate in the Globus format

See Also:

getIdentityCertificate()

removeProxyPolicyHandler

public ProxyPolicyHandler removeProxyPolicyHandler(String id)

Removes a restricted proxy policy handler.

Parameters:

id - the Oid of the policy handler to remove.

Returns:

ProxyPolicyHandler the removed handler, or null if there is no handler registered under that id.

setProxyPolicyHandler

public ProxyPolicyHandler setProxyPolicyHandler(String id,
                                                ProxyPolicyHandler handler)

Sets a restricted proxy policy handler.

Parameters:

id - the Oid of the proxy policy to install the handler for.

handler - the proxy policy handler.

Returns:

ProxyPolicyHandler the previous handler installed under the specified id. Usually, will be null.

getProxyPolicyHandler

public ProxyPolicyHandler getProxyPolicyHandler(String id)

Retrieves a restricted proxy policy handler for a given policy id.

Parameters:

id - the Oid of the proxy policy to get the handler for.

Returns:

ProxyPolicyHandler the policy handler registered for the given id or null if none is registered.

reset

public void reset()

Resets the internal state. Useful for reusing the same instance for validating multiple certificate paths.

validate

public void validate(X509Certificate[] certPath,
                     X509Certificate[] trustedCerts)
              throws ProxyPathValidatorException

Performs all certificate path validation including checking of the signatures, validity of the certificates, extension checking, etc.
It uses the PureTLS code to do basic signature & certificate validity checking and then calls validate for further checks.

Parameters:

certPath - the certificate path to validate.

trustedCerts - the trusted (CA) certificates.

Throws:

ProxyPathValidatorException - if certificate path validation fails.

validate

public void validate(X509Certificate[] certPath)
              throws ProxyPathValidatorException

Performs certificate path validation. Does not check the signatures or validity of the certificates but it performs all other checks like the extension checking, restricted policy checking, etc.

Parameters:

certPath - the certificate path to validate.

Throws:

ProxyPathValidatorException - if certificate path validation fails.

validate

public void validate(X509Certificate[] certPath,
                     TrustedCertificates trustedCerts)
              throws ProxyPathValidatorException

Performs certificate path validation. Does not check the signatures or validity of the certificates but it performs all other checks like the extension checking, restricted policy checking, etc.

Parameters:

certPath - the certificate path to validate.

trustedCerts - the trusted (CA) certificates. If null, the default trusted certificates will be used.

Throws:

ProxyPathValidatorException - if certificate path validation fails.

checkIdentity

protected void checkIdentity(X509Certificate cert,
                             int certType)

checkRestrictedProxy

protected void checkRestrictedProxy(TBSCertificateStructure proxy,
                                    X509Certificate[] certPath,
                                    int index)
                             throws ProxyPathValidatorException,
                                    IOException

checkKeyUsage

protected void checkKeyUsage(TBSCertificateStructure issuer,
                             X509Certificate[] certPath,
                             int index)
                      throws ProxyPathValidatorException,
                             IOException

checkProxyConstraints

protected void checkProxyConstraints(TBSCertificateStructure proxy,
                                     TBSCertificateStructure issuer,
                                     X509Certificate checkedProxy)
                              throws ProxyPathValidatorException,
                                     IOException

checkUnsupportedCriticalExtensions

protected void checkUnsupportedCriticalExtensions(TBSCertificateStructure crt,
                                                  int certType,
                                                  X509Certificate checkedProxy)
                                           throws ProxyPathValidatorException

getProxyPathConstraint

protected int getProxyPathConstraint(TBSCertificateStructure crt)
                              throws IOException

getCAPathConstraint

protected int getCAPathConstraint(TBSCertificateStructure crt)
                           throws IOException

getProxyCertInfo

protected ProxyCertInfo getProxyCertInfo(TBSCertificateStructure crt)
                                  throws IOException

getKeyUsage

protected boolean[] getKeyUsage(TBSCertificateStructure crt)
                         throws IOException