OpenJDK 27 · com.sun.org.apache.xml.internal.security.utils.JavaUtils

Modifier and Type	Field and Description
private static final Logger	LOG
private static final SecurityPermission	REGISTER_PERMISSION References Deprecated `SecurityPermission` is deprecated or references (maybe indirectly) at least one deprecated element.

Access	Constructor and Description
private	JavaUtils()

Method Summary

Modifier and Type	Method and Description
public static void	checkRegisterPermission() Throws a `SecurityException` if a security manager is installed and the caller is not allowed to register an implementation of an algorithm, transform, or other security sensitive XML Signature function.
public static byte[]	Returns: the XML Signature encoded bytes convertDsaASN1toXMLDSIG(byte[] the ASN.1 encoded bytes asn1Bytes, int size of r and s in bytes size) Converts an ASN.1 DSA value to a XML Signature DSA Value.
public static byte[]	Returns: the ASN.1 encoded bytes convertDsaXMLDSIGtoASN1(byte[] the XML Signature encoded bytes xmldsigBytes, int size of r and s in bytes size) Converts an XML Signature DSA Value to a ASN.1 DSA value.
public static byte[]	Returns: the bytes read from the file getBytesFromFile(String fileName) Method getBytesFromFile
public static byte[]	Returns: the bytes read from the stream getBytesFromStream(InputStream inputStream) This method reads all bytes from the given InputStream till EOF and returns them as a byte array.
public static < the type of the class T> T	Returns: the new instance newInstanceWithEmptyConstructor(Class<T> the class clazz) Creates a new instance of this class with the empty constructor.
public static void	writeBytesToFilename(String filename, byte[] bytes) Method writeBytesToFilename

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

LOG	back to summary
private static final Logger LOG

REGISTER_PERMISSION	back to summary
private static final SecurityPermission REGISTER_PERMISSION References Deprecated `SecurityPermission` is deprecated or references (maybe indirectly) at least one deprecated element. See corresponding docs for further information. Annotations @SuppressWarnings:removal

JavaUtils	back to summary
private JavaUtils()

Method Detail

checkRegisterPermission back to summary

checkRegisterPermission	back to summary
public static void checkRegisterPermission() Throws a `SecurityException` if a security manager is installed and the caller is not allowed to register an implementation of an algorithm, transform, or other security sensitive XML Signature function. Exceptions SecurityException: if a security manager is installed and the caller has not been granted the "com.sun.org.apache.xml.internal.security.register" `SecurityPermission`

public static void checkRegisterPermission()

Throws a SecurityException if a security manager is installed and the caller is not allowed to register an implementation of an algorithm, transform, or other security sensitive XML Signature function.

Exceptions

SecurityException:: if a security manager is installed and the caller has not been granted the "com.sun.org.apache.xml.internal.security.register" SecurityPermission

convertDsaASN1toXMLDSIG	back to summary
public static byte[] convertDsaASN1toXMLDSIG(byte[] asn1Bytes, int size) throws IOException Converts an ASN.1 DSA value to a XML Signature DSA Value. The JCE DSA Signature algorithm creates ASN.1 encoded (r, s) value pairs (see section 2.2.2 of RFC 3279); the XML Signature requires the core BigInteger values. Parameters asn1Bytes:byte[] the ASN.1 encoded bytes size:int size of r and s in bytes Returns:byte[] the XML Signature encoded bytes Exceptions IOException: if the bytes are not encoded correctly See Also 6.4.1 DSA

convertDsaASN1toXMLDSIG

back to summary

public static byte[] convertDsaASN1toXMLDSIG(byte[] asn1Bytes, int size) throws IOException

Converts an ASN.1 DSA value to a XML Signature DSA Value. The JCE DSA Signature algorithm creates ASN.1 encoded (r, s) value pairs (see section 2.2.2 of RFC 3279); the XML Signature requires the core BigInteger values.

Parameters

asn1Bytes:byte[]: the ASN.1 encoded bytes
size:int: size of r and s in bytes

Returns:byte[]

the XML Signature encoded bytes

Exceptions

IOException:: if the bytes are not encoded correctly

See Also

6.4.1 DSA

convertDsaXMLDSIGtoASN1	back to summary
public static byte[] convertDsaXMLDSIGtoASN1(byte[] xmldsigBytes, int size) throws IOException Converts an XML Signature DSA Value to a ASN.1 DSA value. The JCE DSA Signature algorithm creates ASN.1 encoded (r, s) value pairs (see section 2.2.2 of RFC 3279); the XML Signature requires the core BigInteger values. Parameters xmldsigBytes:byte[] the XML Signature encoded bytes size:int size of r and s in bytes Returns:byte[] the ASN.1 encoded bytes Exceptions IOException: if the bytes are not encoded correctly See Also 6.4.1 DSA

convertDsaXMLDSIGtoASN1

back to summary

public static byte[] convertDsaXMLDSIGtoASN1(byte[] xmldsigBytes, int size) throws IOException

Converts an XML Signature DSA Value to a ASN.1 DSA value. The JCE DSA Signature algorithm creates ASN.1 encoded (r, s) value pairs (see section 2.2.2 of RFC 3279); the XML Signature requires the core BigInteger values.

Parameters

xmldsigBytes:byte[]: the XML Signature encoded bytes
size:int: size of r and s in bytes

Returns:byte[]

the ASN.1 encoded bytes

Exceptions

IOException:: if the bytes are not encoded correctly

See Also

6.4.1 DSA

getBytesFromFile	back to summary
public static byte[] getBytesFromFile(String fileName) throws FileNotFoundException, IOException Method getBytesFromFile Returns:byte[] the bytes read from the file

getBytesFromFile

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public static byte[] getBytesFromFile(String fileName) throws FileNotFoundException, IOException

Method getBytesFromFile

Returns:byte[]: the bytes read from the file

getBytesFromStream	back to summary
public static byte[] getBytesFromStream(InputStream inputStream) throws IOException This method reads all bytes from the given InputStream till EOF and returns them as a byte array. The method doesn't close the input stream. Returns:byte[] the bytes read from the stream

getBytesFromStream

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public static byte[] getBytesFromStream(InputStream inputStream) throws IOException

This method reads all bytes from the given InputStream till EOF and returns them as a byte array. The method doesn't close the input stream.

Returns:byte[]: the bytes read from the stream

newInstanceWithEmptyConstructor	back to summary
public static <T> T newInstanceWithEmptyConstructor(Class<T> clazz) throws InstantiationException, IllegalAccessException, InvocationTargetException Creates a new instance of this class with the empty constructor. Parameters <T> the type of the class clazz:Class<T> the class Returns:T the new instance

newInstanceWithEmptyConstructor

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public static <T> T newInstanceWithEmptyConstructor(Class<T> clazz) throws InstantiationException, IllegalAccessException, InvocationTargetException

Creates a new instance of this class with the empty constructor.

Parameters

<T>: the type of the class
clazz:Class<T>: the class

Returns:T

the new instance

writeBytesToFilename	back to summary
public static void writeBytesToFilename(String filename, byte[] bytes) Method writeBytesToFilename

public final Class JavaUtils

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Constructor Summary

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