Class DigestUtil

java.lang.Object

org.wildfly.security.sasl.digest._private.DigestUtil

public final class DigestUtil
extends Object

Author:

Peter Skopek.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	AUTH_METHOD
static final String	HASH_algorithm
static final String	HMAC_algorithm
static final String	QOP_AUTH
static final String	QOP_AUTH_CONF
static final String	QOP_AUTH_INT
static final String[]	QOP_VALUES
static final String	SECURITY_MARK

Constructor Summary

Constructors

Constructor	Description
DigestUtil()

Method Summary

Modifier and Type	Method	Description
static byte[]	computeHMAC(byte[] kc, int sequenceNumber, Mac mac, byte[] message, int offset, int len)
static byte[]	convertToHexBytesWithLeftPadding(int input, int totalLength)	Converts input to HEX and pad it from left with zeros to totalLength.
static SecretKey	create3desSecretKey(byte[] keyBits)	Create 3des secret key according to http://www.cryptosys.net/3des.html.
static SecretKey	createDesSecretKey(byte[] keyBits)	Create DES secret key according to http://www.cryptosys.net/3des.html.
static int	decodeByteOrderedInteger(byte[] buf, int offset, int len)
static byte[]	digestResponse(MessageDigest messageDigest, byte[] H_A1, byte[] nonce, int nonce_count, byte[] cnonce, String authzid, String qop, String digest_uri, boolean auth)	Method to produce digest-response: response-value = HEX( KD ( HEX(H(A1)), { nonce-value, ":" nc-value, ":", cnonce-value, ":", qop-value, ":", HEX(H(A2)) }))
static byte[]	H_A1(MessageDigest messageDigest, byte[] digest_urp, byte[] nonce, byte[] cnonce, String authzid, Charset responseCharset)	Calculates H(A1).
static void	integerByteOrdered(int num, byte[] buf, int offset, int len)
static String	messageDigestAlgorithm(String digestAlgorithm)
static String	passwordAlgorithm(String digestAlgorithm)

Methods inherited from class Object

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

Field Details

QOP_AUTH

public static final String QOP_AUTH

See Also:

• Constant Field Values

QOP_AUTH_INT

public static final String QOP_AUTH_INT

See Also:

• Constant Field Values

QOP_AUTH_CONF

public static final String QOP_AUTH_CONF

See Also:

• Constant Field Values

QOP_VALUES

public static final String[] QOP_VALUES

AUTH_METHOD

public static final String AUTH_METHOD

See Also:

• Constant Field Values

SECURITY_MARK

public static final String SECURITY_MARK

See Also:

• Constant Field Values

HASH_algorithm

public static final String HASH_algorithm

See Also:

• Constant Field Values

HMAC_algorithm

public static final String HMAC_algorithm

See Also:

• Constant Field Values

Constructor Details

DigestUtil

public DigestUtil()

Method Details

passwordAlgorithm

public static String passwordAlgorithm(String digestAlgorithm)

messageDigestAlgorithm

public static String messageDigestAlgorithm(String digestAlgorithm)

H_A1

public static byte[] H_A1(MessageDigest messageDigest,
 byte[] digest_urp,
 byte[] nonce,
 byte[] cnonce,
 String authzid,
 Charset responseCharset)

Calculates H(A1).

Parameters:

messageDigest -

digest_urp -

nonce -

cnonce -

authzid -

responseCharset -

Returns:

digestResponse

public static byte[] digestResponse(MessageDigest messageDigest,
 byte[] H_A1,
 byte[] nonce,
 int nonce_count,
 byte[] cnonce,
 String authzid,
 String qop,
 String digest_uri,
 boolean auth)

Method to produce digest-response: response-value = HEX( KD ( HEX(H(A1)), { nonce-value, ":" nc-value, ":", cnonce-value, ":", qop-value, ":", HEX(H(A2)) }))

convertToHexBytesWithLeftPadding

public static byte[] convertToHexBytesWithLeftPadding(int input,
 int totalLength)

Converts input to HEX and pad it from left with zeros to totalLength.

Parameters:

input - to be converted to HEX

totalLength - length of returned array of bytes

Returns:

computeHMAC

public static byte[] computeHMAC(byte[] kc,
 int sequenceNumber,
 Mac mac,
 byte[] message,
 int offset,
 int len)
                          throws SaslException

Throws:

SaslException

integerByteOrdered

public static void integerByteOrdered(int num,
 byte[] buf,
 int offset,
 int len)

decodeByteOrderedInteger

public static int decodeByteOrderedInteger(byte[] buf,
 int offset,
 int len)

createDesSecretKey

public static SecretKey createDesSecretKey(byte[] keyBits)
                                    throws NoSuchAlgorithmException,
InvalidKeyException,
InvalidKeySpecException

Create DES secret key according to http://www.cryptosys.net/3des.html.

Parameters:

keyBits -

Returns:

Throws:

NoSuchAlgorithmException

InvalidKeyException

InvalidKeySpecException

create3desSecretKey

public static SecretKey create3desSecretKey(byte[] keyBits)
                                     throws NoSuchAlgorithmException,
InvalidKeyException,
InvalidKeySpecException

Create 3des secret key according to http://www.cryptosys.net/3des.html.

Parameters:

keyBits -

Returns:

Throws:

NoSuchAlgorithmException

InvalidKeyException

InvalidKeySpecException