org.apache.ws.security.components.crypto
Class CryptoBase

java.lang.Object
  org.apache.ws.security.components.crypto.CryptoBase

All Implemented Interfaces:

Crypto

Direct Known Subclasses:

AbstractCrypto

public abstract class CryptoBase
extends Object
implements Crypto

Created by IntelliJ IDEA. User: dims Date: Sep 15, 2005 Time: 9:50:40 AM To change this template use File | Settings | File Templates.

Field Summary

protected KeyStore	cacerts
protected static Map	certFactMap
protected KeyStore	keystore

Constructor Summary

protected

CryptoBase() Constructor

Method Summary

protected static String	createKeyStoreErrorMessage(KeyStore keystore)
String[]	getAliasesForDN(String subjectDN) Lookup X509 Certificates in the keystore according to a given DN of the subject of the certificate The search gets all alias names of the keystore and gets the certificate (chain) for each alias.
String	getAliasForX509Cert(byte[] skiBytes) Lookup a X509 Certificate in the keystore according to a given SubjectKeyIdentifier.
String	getAliasForX509Cert(Certificate cert) Return a X509 Certificate alias in the keystore according to a given Certificate
String	getAliasForX509Cert(String issuer) Lookup a X509 Certificate in the keystore according to a given the issuer of a Certificate.
String	getAliasForX509Cert(String issuer, BigInteger serialNumber) Lookup a X509 Certificate in the keystore according to a given serial number and the issuer of a Certificate.
String	getAliasForX509CertThumb(byte[] thumb) Lookup a X509 Certificate in the keystore according to a given Thumbprint.
byte[]	getCertificateData(boolean reverse, X509Certificate[] certs) get a byte array given an array of X509 certificates.
CertificateFactory	getCertificateFactory() Singleton certificate factory for this Crypto instance.
X509Certificate[]	getCertificates(String alias) Gets the list of certificates for a given alias.
protected abstract String	getCryptoProvider()
KeyStore	getKeyStore() Gets the Keystore that was loaded by the underlying implementation
PrivateKey	getPrivateKey(String alias, String password) Gets the private key identified by alias and password.
byte[]	getSKIBytesFromCert(X509Certificate cert) Reads the SubjectKeyIdentifier information from the certificate.
X509Certificate[]	getX509Certificates(byte[] data, boolean reverse) Construct an array of X509Certificate's from the byte array.
X509Certificate	loadCertificate(InputStream in) load a X509Certificate from the input stream.
void	setKeyStore(KeyStore ks) A Hook for subclasses to set the keystore without having to load it from an InputStream.
protected Vector	splitAndTrim(String inString)
boolean	validateCertPath(X509Certificate[] certs) Overridden because there's a bug in the base class where they don't use the provider variant for the certificate validator.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.ws.security.components.crypto.Crypto

getDefaultX509Alias

Field Detail

certFactMap

protected static Map certFactMap

keystore

protected KeyStore keystore

cacerts

protected KeyStore cacerts

Constructor Detail

CryptoBase

protected CryptoBase()

Constructor

Method Detail

getCryptoProvider

protected abstract String getCryptoProvider()

Returns:

a crypto provider name. This operation should return null if the default crypto provider should be used.

getCertificateFactory

public CertificateFactory getCertificateFactory()
                                         throws WSSecurityException

Singleton certificate factory for this Crypto instance.

Specified by:

getCertificateFactory in interface Crypto

Returns:

Returns a CertificateFactory to construct X509 certificates

Throws:

WSSecurityException

loadCertificate

public X509Certificate loadCertificate(InputStream in)
                                throws WSSecurityException

load a X509Certificate from the input stream.

Specified by:

loadCertificate in interface Crypto

Parameters:

in - The InputStream array containing the X509 data

Returns:

Returns a X509 certificate

Throws:

WSSecurityException

getPrivateKey

public PrivateKey getPrivateKey(String alias,
                                String password)
                         throws Exception

Gets the private key identified by alias and password.

Specified by:

getPrivateKey in interface Crypto

Parameters:

alias - The alias (KeyStore) of the key owner

password - The password needed to access the private key

Returns:

The private key

Throws:

Exception

createKeyStoreErrorMessage

protected static String createKeyStoreErrorMessage(KeyStore keystore)
                                            throws KeyStoreException

Throws:

KeyStoreException

splitAndTrim

protected Vector splitAndTrim(String inString)

getAliasForX509Cert

public String getAliasForX509Cert(String issuer)
                           throws WSSecurityException

Lookup a X509 Certificate in the keystore according to a given the issuer of a Certificate.

The search gets all alias names of the keystore and gets the certificate chain for each alias. Then the Issuer for each certificate of the chain is compared with the parameters.

Specified by:

getAliasForX509Cert in interface Crypto

Parameters:

issuer - The issuer's name for the certificate

Returns:

alias name of the certificate that matches the issuer name or null if no such certificate was found.

Throws:

WSSecurityException

getAliasForX509Cert

public String getAliasForX509Cert(String issuer,
                                  BigInteger serialNumber)
                           throws WSSecurityException

Lookup a X509 Certificate in the keystore according to a given serial number and the issuer of a Certificate.

The search gets all alias names of the keystore and gets the certificate chain for each alias. Then the SerialNumber and Issuer for each certificate of the chain is compared with the parameters.

Specified by:

getAliasForX509Cert in interface Crypto

Parameters:

issuer - The issuer's name for the certificate

serialNumber - The serial number of the certificate from the named issuer

Returns:

alias name of the certificate that matches serialNumber and issuer name or null if no such certificate was found.

Throws:

WSSecurityException

getAliasForX509Cert

public String getAliasForX509Cert(byte[] skiBytes)
                           throws WSSecurityException

Lookup a X509 Certificate in the keystore according to a given SubjectKeyIdentifier.

The search gets all alias names of the keystore and gets the certificate chain or certificate for each alias. Then the SKI for each user certificate is compared with the SKI parameter.

Specified by:

getAliasForX509Cert in interface Crypto

Parameters:

skiBytes - The SKI info bytes

Returns:

alias name of the certificate that matches serialNumber and issuer name or null if no such certificate was found.

Throws:

WSSecurityException - if problems during keystore handling or wrong certificate (no SKI data)

getAliasForX509Cert

public String getAliasForX509Cert(Certificate cert)
                           throws WSSecurityException

Return a X509 Certificate alias in the keystore according to a given Certificate

Specified by:

getAliasForX509Cert in interface Crypto

Parameters:

cert - The certificate to lookup

Returns:

alias name of the certificate that matches the given certificate or null if no such certificate was found.

Throws:

WSSecurityException

getCertificates

public X509Certificate[] getCertificates(String alias)
                                  throws WSSecurityException

Gets the list of certificates for a given alias.

Specified by:

getCertificates in interface Crypto

Parameters:

alias - Lookup certificate chain for this alias

Returns:

Array of X509 certificates for this alias name, or null if this alias does not exist in the keystore

Throws:

WSSecurityException

getAliasForX509CertThumb

public String getAliasForX509CertThumb(byte[] thumb)
                                throws WSSecurityException

Lookup a X509 Certificate in the keystore according to a given Thumbprint.

The search gets all alias names of the keystore, then reads the certificate chain or certificate for each alias. Then the thumbprint for each user certificate is compared with the thumbprint parameter.

Specified by:

getAliasForX509CertThumb in interface Crypto

Parameters:

thumb - The SHA1 thumbprint info bytes

Returns:

alias name of the certificate that matches the thumbprint or null if no such certificate was found.

Throws:

WSSecurityException - if problems during keystore handling or wrong certificate

setKeyStore

public void setKeyStore(KeyStore ks)

A Hook for subclasses to set the keystore without having to load it from an InputStream.

Parameters:

ks - existing keystore

getSKIBytesFromCert

public byte[] getSKIBytesFromCert(X509Certificate cert)
                           throws WSSecurityException

Reads the SubjectKeyIdentifier information from the certificate.

If the the certificate does not contain a SKI extension then try to compute the SKI according to RFC3280 using the SHA-1 hash value of the public key. The second method described in RFC3280 is not support. Also only RSA public keys are supported. If we cannot compute the SKI throw a WSSecurityException.

Specified by:

getSKIBytesFromCert in interface Crypto

Parameters:

cert - The certificate to read SKI

Returns:

The byte array containing the binary SKI data

Throws:

WSSecurityException

getKeyStore

public KeyStore getKeyStore()

Description copied from interface: Crypto

Gets the Keystore that was loaded by the underlying implementation

Specified by:

getKeyStore in interface Crypto

Returns:

the Keystore

getAliasesForDN

public String[] getAliasesForDN(String subjectDN)
                         throws WSSecurityException

Lookup X509 Certificates in the keystore according to a given DN of the subject of the certificate

The search gets all alias names of the keystore and gets the certificate (chain) for each alias. Then the DN of the certificate is compared with the parameters.

Specified by:

getAliasesForDN in interface Crypto

Parameters:

subjectDN - The DN of subject to look for in the keystore

Returns:

Vector with all alias of certificates with the same DN as given in the parameters

Throws:

WSSecurityException

getCertificateData

public byte[] getCertificateData(boolean reverse,
                                 X509Certificate[] certs)
                          throws WSSecurityException

get a byte array given an array of X509 certificates.

Specified by:

getCertificateData in interface Crypto

Parameters:

reverse - If set the first certificate in the array data will the last in the byte array

certs - The certificates to convert

Returns:

The byte array for the certificates ordered according to the reverse flag

Throws:

WSSecurityException

getX509Certificates

public X509Certificate[] getX509Certificates(byte[] data,
                                             boolean reverse)
                                      throws WSSecurityException

Construct an array of X509Certificate's from the byte array.

Specified by:

getX509Certificates in interface Crypto

Parameters:

data - The byte array containing the X509 data

reverse - If set the first certificate in input data will the last in the array

Returns:

An array of X509 certificates, ordered according to the reverse flag

Throws:

WSSecurityException

validateCertPath

public boolean validateCertPath(X509Certificate[] certs)
                         throws WSSecurityException

Overridden because there's a bug in the base class where they don't use the provider variant for the certificate validator.

Specified by:

validateCertPath in interface Crypto

Parameters:

certs - Certificate chain to validate

Returns:

true if the certificate chain is valid, false otherwise

Throws:

WSSecurityException