anon.crypto

Class X509KeyUsage

java.lang.Object

anon.crypto.AbstractX509Extension

anon.crypto.X509KeyUsage

public class X509KeyUsage
extends AbstractX509Extension

This class implements the KeyUsage extension for X.509-certificates as specified in RFC 5280.

Author:

Robert Hirschberger

See Also:

http://tools.ietf.org/html/rfc5280

Field Summary

Fields

Modifier and Type	Field and Description
static int	CRL_SIGN
static int	DATA_ENCIPHERMENT
static int	DECIPHER_ONLY
static int	DIGITAL_SIGNATURE
static int	ENCIPHER_ONLY
static java.lang.String	IDENTIFIER
static int	KEY_AGREEMENT
static int	KEY_CERT_SIGN
static int	KEY_ENCIPHERMENT
static int	NON_REPUDIATION

Constructor Summary

Constructors

Constructor and Description
X509KeyUsage(mybouncycastle.org.bouncycastle.asn1.ASN1Sequence a_extension) Creates an new X509KeyUsage object from a BouncyCastle DERSequence
X509KeyUsage(int a_usage) Creates a new X509KeyUsage object from the specified usage integer.

Method Summary

Modifier and Type	Method and Description
boolean	allowsCRLSign()
boolean	allowsDataEncipherment()
boolean	allowsDecipherOnly()
boolean	allowsDigitalSignature()
boolean	allowsEncipherOnly()
boolean	allowsKeyAgreement()
boolean	allowsKeyCertSign()
boolean	allowsKeyEncipherment()
boolean	allowsNonRepudiation()
java.lang.String	getName() Returns the human-readable name of this extension.
java.lang.String	getUsageString(int a_usage) Translate a single usage-bitstring (no combination) into a human-readable String.
java.util.Vector	getValues() This method returns all values of this extension in separated String objects.
boolean	isAllowedUsage(int a_usage)

Methods inherited from class anon.crypto.AbstractX509Extension

equals, getDEROctets, getIdentifier, hashCode, isCritical, toString

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Field Detail

IDENTIFIER

public static final java.lang.String IDENTIFIER

DIGITAL_SIGNATURE

public static final int DIGITAL_SIGNATURE

See Also:

Constant Field Values

NON_REPUDIATION

public static final int NON_REPUDIATION

See Also:

Constant Field Values

KEY_ENCIPHERMENT

public static final int KEY_ENCIPHERMENT

See Also:

Constant Field Values

DATA_ENCIPHERMENT

public static final int DATA_ENCIPHERMENT

See Also:

Constant Field Values

KEY_AGREEMENT

public static final int KEY_AGREEMENT

See Also:

Constant Field Values

KEY_CERT_SIGN

public static final int KEY_CERT_SIGN

See Also:

Constant Field Values

CRL_SIGN

public static final int CRL_SIGN

See Also:

Constant Field Values

ENCIPHER_ONLY

public static final int ENCIPHER_ONLY

See Also:

Constant Field Values

DECIPHER_ONLY

public static final int DECIPHER_ONLY

See Also:

Constant Field Values

Constructor Detail

X509KeyUsage

public X509KeyUsage(int a_usage)

Creates a new X509KeyUsage object from the specified usage integer. This has to be constructed through the bitwise or ("|") from the different available usages in the BC-Class KeyUsage.

Parameters:

a_usage -

See Also:

org.bouncycastle.asn1.x509.KeyUsage;

X509KeyUsage

public X509KeyUsage(mybouncycastle.org.bouncycastle.asn1.ASN1Sequence a_extension)

Creates an new X509KeyUsage object from a BouncyCastle DERSequence

Parameters:

a_extension - the extions as ASN1Sequence

Method Detail

getName

public java.lang.String getName()

Description copied from class: AbstractX509Extension

Returns the human-readable name of this extension.

Specified by:

getName in class AbstractX509Extension

Returns:

"KeyUsage"

getValues

public java.util.Vector getValues()

Description copied from class: AbstractX509Extension

This method returns all values of this extension in separated String objects. The values should be human readable.

Specified by:

getValues in class AbstractX509Extension

Returns:

a human-readable Vector of the allowed KeyUsages.

getUsageString

public java.lang.String getUsageString(int a_usage)

Translate a single usage-bitstring (no combination) into a human-readable String.

Parameters:

a_usage - a single usage

Returns:

a human-readable String of the usage or null if the usage is unknown. combined usages return also null!

isAllowedUsage

public boolean isAllowedUsage(int a_usage)

Parameters:

a_usage - a (combination of) usage(s) to test against the extension's allowed usages.

Returns:

true if all of the usages are allowed or false otherwise.

allowsDigitalSignature

public boolean allowsDigitalSignature()

allowsNonRepudiation

public boolean allowsNonRepudiation()

allowsKeyEncipherment

public boolean allowsKeyEncipherment()

allowsDataEncipherment

public boolean allowsDataEncipherment()

allowsKeyAgreement

public boolean allowsKeyAgreement()

allowsKeyCertSign

public boolean allowsKeyCertSign()

allowsCRLSign

public boolean allowsCRLSign()

allowsEncipherOnly

public boolean allowsEncipherOnly()

allowsDecipherOnly

public boolean allowsDecipherOnly()