public class BasicConstraintsExtension extends Extension implements CertAttrSet
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.
The ASN.1 syntax for this extension is:
BasicConstraints ::= SEQUENCE {
cA BOOLEAN DEFAULT FALSE,
pathLenConstraint INTEGER (0..MAX) OPTIONAL
}
CertAttrSet,
Extension,
Serialized Form| Modifier and Type | Field and Description |
|---|---|
static java.lang.String |
IDENT
Identifier for this attribute, to be used with the
get, set, delete methods of Certificate, x509 type.
|
static java.lang.String |
IS_CA |
static java.lang.String |
NAME
Attribute names.
|
static java.lang.String |
PATH_LEN |
critical, extensionId, extensionValue| Constructor and Description |
|---|
BasicConstraintsExtension(boolean ca,
boolean critical,
int len)
Default constructor for this object.
|
BasicConstraintsExtension(boolean ca,
int len)
Default constructor for this object.
|
BasicConstraintsExtension(java.lang.Boolean critical,
java.lang.Object value)
Create the extension from the passed DER encoded value of the same.
|
| Modifier and Type | Method and Description |
|---|---|
void |
decode(java.io.InputStream in)
Decode the extension from the InputStream.
|
void |
delete(java.lang.String name)
Delete the attribute value.
|
void |
encode(java.io.OutputStream out)
Encode this extension value to the output stream.
|
java.lang.Object |
get(java.lang.String name)
Get the attribute value.
|
java.util.Enumeration<java.lang.String> |
getAttributeNames()
Return an enumeration of names of attributes existing within this
attribute.
|
java.lang.String |
getName()
Return the name of this attribute.
|
void |
set(java.lang.String name,
java.lang.Object obj)
Set the attribute value.
|
java.lang.String |
toString()
Return user readable form of extension.
|
clearValue, encode, getExtensionId, getExtensionValue, isCritical, setCritical, setExtensionId, setExtensionValuepublic static final java.lang.String IDENT
public static final java.lang.String NAME
public static final java.lang.String IS_CA
public static final java.lang.String PATH_LEN
public BasicConstraintsExtension(boolean ca,
int len)
throws java.io.IOException
ca - true, if the subject of the Certificate is a CA.len - specifies the depth of the certification path.java.io.IOExceptionpublic BasicConstraintsExtension(boolean ca,
boolean critical,
int len)
throws java.io.IOException
ca - true, if the subject of the Certificate is a CA.len - specifies the depth of the certification path.java.io.IOExceptionpublic BasicConstraintsExtension(java.lang.Boolean critical,
java.lang.Object value)
throws java.io.IOException
value - the DER encoded value of the extension.java.io.IOException - on error.public java.lang.String toString()
toString in interface CertAttrSettoString in class Extensionpublic void decode(java.io.InputStream in)
throws java.io.IOException
decode in interface CertAttrSetin - the InputStream to unmarshal the contents from.java.io.IOException - on decoding or validity errors.public void encode(java.io.OutputStream out)
throws java.io.IOException
encode in interface CertAttrSetout - the DerOutputStream to encode the extension to.java.io.IOException - on other errors.public void set(java.lang.String name,
java.lang.Object obj)
throws java.io.IOException
set in interface CertAttrSetname - the name of the attribute (e.g. "x509.info.key")obj - the attribute object.java.io.IOException - on other errors.public java.lang.Object get(java.lang.String name)
throws java.io.IOException
get in interface CertAttrSetname - the name of the attribute to return.java.io.IOException - on other errors.public void delete(java.lang.String name)
throws java.io.IOException
delete in interface CertAttrSetname - the name of the attribute to delete.java.io.IOException - on other errors.public java.util.Enumeration<java.lang.String> getAttributeNames()
getAttributeNames in interface CertAttrSetpublic java.lang.String getName()
getName in interface CertAttrSet