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Class iaik.x509.extensions.BasicConstraints 

java.lang.Object
   |
   +----iaik.x509.V3Extension
           |
           +----iaik.x509.extensions.BasicConstraints
public class BasicConstraints
extends V3Extension
This class implements the BasicConstraints Extension. The basic constraints extension identifies whether the subject of the certificate is a CA and how deep a certification path may exist through that CA. This profile requires the use of this extension, and it shall be critical for all certificates issued to CAs.

Constructor Index

o BasicConstraints()
Default constructor.
o BasicConstraints(boolean)
Creates a new BasicConstraints extension.
o BasicConstraints(boolean, int)
Creates a new BasicConstraints extension.

Method Index

o ca()
Returns true if the subject is a CA.
o getObjectID()
Returns the object ID of this extension
o getPathLenConstraint()
Returns the pathLenConstraint value.
o hashCode()
Returns a hashcode for this identity.
o init(ASN1Object)
Inits this implementation of an extension with an ASN1Object.
o setCa(boolean)
Sets the cA value, true if the subject is a CA.
o setPathLenConstraint(int)
Sets the pathLenConstraint value.
o toASN1Object()
Returns the value of this extension as ASN1Object.
o toString()
Returns a string that represents the contents of the extensions.

Constructors

o BasicConstraints 
 public BasicConstraints()
Default constructor. Creates an empty object.

o BasicConstraints 
 public BasicConstraints(boolean ca,
                         int plc)
Creates a new BasicConstraints extension.

Parameters:
ca - is the subject a CA
plc - how deep a certification path may exist
o BasicConstraints 
 public BasicConstraints(boolean ca)
Creates a new BasicConstraints extension.

Parameters:
ca - is the subject a CA

Methods

o getObjectID 
 public ObjectID getObjectID()
Returns the object ID of this extension

Returns:
the object ID
Overrides:
getObjectID in class V3Extension
o init 
 public void init(ASN1Object obj) throws ExtensionException
Inits this implementation of an extension with an ASN1Object. The ASN1Object is the extensionValue from ASN.1 type "Extension". The ASN1Object is the one created by toASN1Object().

Parameters:
obj - the extensionValue as ASN1Object
Throws: ExtensionException
if the extension could not be parsed
Overrides:
init in class V3Extension
See Also:
toASN1Object
o toASN1Object 
 public ASN1Object toASN1Object() throws ExtensionException
Returns the value of this extension as ASN1Object. The ASN1Object is the extensionValue from ASN.1 type "Extension". The created ASN1Object is same, which is the parameter to method init.

Returns:
the value of the extension as ASN1Object
Throws: ExtensionException
if the extension could not be created
Overrides:
toASN1Object in class V3Extension
See Also:
init
o setPathLenConstraint 
 public void setPathLenConstraint(int plc)
Sets the pathLenConstraint value.

Parameters:
plc - the pathLenConstraint value
o setCa 
 public void setCa(boolean ca)
Sets the cA value, true if the subject is a CA.

Parameters:
ca - the cA value, true if the subject is a CA
o getPathLenConstraint 
 public int getPathLenConstraint()
Returns the pathLenConstraint value.

Returns:
the pathLenConstraint value
o ca 
 public boolean ca()
Returns true if the subject is a CA.

Returns:
true if the subject is a CA
o hashCode 
 public int hashCode()
Returns a hashcode for this identity.

Returns:
a hash code for this identity
Overrides:
hashCode in class V3Extension
o toString 
 public String toString()
Returns a string that represents the contents of the extensions.

Returns:
the string representation
Overrides:
toString in class Object 
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