gnu.crypto.key.srp6
public class SRPPrivateKey extends SRPKey implements PrivateKey
A representation of an SRP ephemeral private key.
Reference:
Version: $Revision: 1.2 $
Constructor Summary | |
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SRPPrivateKey(BigInteger N, BigInteger g, BigInteger x) Public constructor for use from outside this package. | |
SRPPrivateKey(BigInteger N, BigInteger g, BigInteger x, BigInteger v) Public constructor for use from outside this package. | |
SRPPrivateKey(BigInteger[] params) Default constructor. |
Method Summary | |
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boolean | equals(Object obj) Returns |
byte[] | getEncoded(int format) Returns the encoded form of this private key according to the designated format. |
BigInteger | getV() Returns the user's verifier as a BigInteger. |
BigInteger | getX() Returns the private exponent of the key as a BigInteger. |
static SRPPrivateKey | valueOf(byte[] k) A class method that takes the output of the |
Public constructor for use from outside this package.
Parameters: N the public shared modulus. g the generator. x the private exponent of the ephemeral key.
Public constructor for use from outside this package.
Parameters: N the public shared modulus. g the generator. x the private exponent of the ephemeral key. v the user's verifier value (for the server side only).
Default constructor. Assumes N and g are already validated.
Parameters: params an array of either 3 or 4 values representing N, g, and
either v and X for the server, or just X for the client. Those values
represent the following:
Returns true
if the designated object is an instance of
SRPPrivateKey
and has the same SRP parameter values as this
one.
Parameters: obj the other non-null SRP key to compare to.
Returns: true
if the designated object is of the same type and
value as this one.
Returns the encoded form of this private key according to the designated format.
Parameters: format the desired format identifier of the resulting encoding.
Returns: the byte sequence encoding this key according to the designated format.
Throws: IllegalArgumentException if the format is not supported.
Returns the user's verifier as a BigInteger.
Returns: the user's verifier as a BigInteger if this is an SRP
private key of a Host, or null
if this is a private SRP key
for a User.
Returns the private exponent of the key as a BigInteger.
Returns: the private exponent of the key as a BigInteger.
A class method that takes the output of the encodePrivateKey()
method of an SRP keypair codec object (an instance implementing
IKeyPairCodec for DSS keys, and re-constructs an instance of this
object.
Parameters: k the contents of a previously encoded instance of this object.
Throws: ArrayIndexOutOfBoundsException if there is not enough bytes, in
k
, to represent a valid encoding of an instance of this object. IllegalArgumentException if the byte sequence does not represent a
valid encoding of an instance of this object.