diff options
Diffstat (limited to 'libjava/classpath/gnu/javax/crypto/key/srp6/SRPPrivateKey.java')
| -rw-r--r-- | libjava/classpath/gnu/javax/crypto/key/srp6/SRPPrivateKey.java | 129 |
1 files changed, 53 insertions, 76 deletions
diff --git a/libjava/classpath/gnu/javax/crypto/key/srp6/SRPPrivateKey.java b/libjava/classpath/gnu/javax/crypto/key/srp6/SRPPrivateKey.java index d9f7a19a6cf..d5ade07d765 100644 --- a/libjava/classpath/gnu/javax/crypto/key/srp6/SRPPrivateKey.java +++ b/libjava/classpath/gnu/javax/crypto/key/srp6/SRPPrivateKey.java @@ -45,39 +45,33 @@ import java.math.BigInteger; import java.security.PrivateKey; /** - * <p>A representation of an SRP ephemeral private key.</p> - * - * <p>Reference:</p> + * A representation of an SRP ephemeral private key. + * <p> + * Reference: * <ol> - * <li><a href="http://srp.stanford.edu/design.html">SRP Protocol Design</a><br> - * Thomas J. Wu.</li> + * <li><a href="http://srp.stanford.edu/design.html">SRP Protocol Design</a><br> + * Thomas J. Wu.</li> * </ol> */ -public class SRPPrivateKey extends SRPKey implements PrivateKey +public class SRPPrivateKey + extends SRPKey + implements PrivateKey { - - // Constants and variables - // ------------------------------------------------------------------------- - /** - * The private exponent for either the server or the client engaged in the - * SRP protocol exchange. + * The private exponent for either the server or the client engaged in the SRP + * protocol exchange. */ private final BigInteger X; - /** - * The user's verifier (v) --for the server-- also computed at the client - * side as g.modPow(x, N), where x is the hashed output of the user name and + * The user's verifier (v) --for the server-- also computed at the client side + * as g.modPow(x, N), where x is the hashed output of the user name and * password . */ private final BigInteger v; - // Constructor(s) - // ------------------------------------------------------------------------- - /** - * <p>Public constructor for use from outside this package.</p> - * + * Public constructor for use from outside this package. + * * @param N the public shared modulus. * @param g the generator. * @param x the private exponent of the ephemeral key. @@ -88,8 +82,8 @@ public class SRPPrivateKey extends SRPKey implements PrivateKey } /** - * <p>Public constructor for use from outside this package.</p> - * + * Public constructor for use from outside this package. + * * @param N the public shared modulus. * @param g the generator. * @param x the private exponent of the ephemeral key. @@ -105,15 +99,16 @@ public class SRPPrivateKey extends SRPKey implements PrivateKey } /** - * <p>Default constructor. Assumes N and g are already validated.</p> - * + * Default constructor. Assumes N and g are already validated. + * * @param 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: - * <ol> - * <li>v (server side): the user's verifier.</li> - * <li>X (both sides): the server's or client's ephemeral private exponent.</li> - * </ol> + * either v and X for the server, or just X for the client. Those + * values represent the following: + * <ol> + * <li>v (server side): the user's verifier.</li> + * <li>X (both sides): the server's or client's ephemeral private + * exponent.</li> + * </ol> */ SRPPrivateKey(BigInteger[] params) { @@ -130,31 +125,27 @@ public class SRPPrivateKey extends SRPKey implements PrivateKey v = params[3]; } else - { - throw new IllegalArgumentException("invalid number of SRP parameters"); - } + throw new IllegalArgumentException("invalid number of SRP parameters"); } - // Class methods - // ------------------------------------------------------------------------- - /** - * <p>A class method that takes the output of the <code>encodePrivateKey()</code> + * A class method that takes the output of the <code>encodePrivateKey()</code> * method of an SRP keypair codec object (an instance implementing * {@link IKeyPairCodec} for DSS keys, and re-constructs an instance of this - * object.</p> - * + * object. + * * @param k the contents of a previously encoded instance of this object. * @throws ArrayIndexOutOfBoundsException if there is not enough bytes, in - * <code>k</code>, to represent a valid encoding of an instance of this object. + * <code>k</code>, to represent a valid encoding of an instance + * of this object. * @throws IllegalArgumentException if the byte sequence does not represent a - * valid encoding of an instance of this object. + * valid encoding of an instance of this object. */ public static SRPPrivateKey valueOf(byte[] k) { // check magic... // we should parse here enough bytes to know which codec to use, and - // direct the byte array to the appropriate codec. since we only have one + // direct the byte array to the appropriate codec. since we only have one // codec, we could have immediately tried it; nevertheless since testing // one byte is cheaper than instatiating a codec that will fail we test // the first byte before we carry on. @@ -164,18 +155,12 @@ public class SRPPrivateKey extends SRPKey implements PrivateKey IKeyPairCodec codec = new SRPKeyPairRawCodec(); return (SRPPrivateKey) codec.decodePrivateKey(k); } - else - { - throw new IllegalArgumentException("magic"); - } + throw new IllegalArgumentException("magic"); } - // Instance methods - // ------------------------------------------------------------------------- - /** - * <p>Returns the private exponent of the key as a {@link BigInteger}.</p> - * + * Returns the private exponent of the key as a {@link BigInteger}. + * * @return the private exponent of the key as a {@link BigInteger}. */ public BigInteger getX() @@ -184,26 +169,24 @@ public class SRPPrivateKey extends SRPKey implements PrivateKey } /** - * <p>Returns the user's verifier as a {@link BigInteger}.</p> - * + * Returns the user's verifier as a {@link BigInteger}. + * * @return the user's verifier as a {@link BigInteger} if this is an SRP - * private key of a Host, or <code>null</code> if this is a private SRP key - * for a User. + * private key of a Host, or <code>null</code> if this is a private + * SRP key for a User. */ public BigInteger getV() { return v; } - // Other instance methods -------------------------------------------------- - /** - * <p>Returns the encoded form of this private key according to the - * designated format.</p> - * + * Returns the encoded form of this private key according to the designated + * format. + * * @param format the desired format identifier of the resulting encoding. * @return the byte sequence encoding this key according to the designated - * format. + * format. * @throws IllegalArgumentException if the format is not supported. */ public byte[] getEncoded(int format) @@ -221,30 +204,24 @@ public class SRPPrivateKey extends SRPKey implements PrivateKey } /** - * <p>Returns <code>true</code> if the designated object is an instance of + * Returns <code>true</code> if the designated object is an instance of * <code>SRPPrivateKey</code> and has the same SRP parameter values as this - * one.</p> - * + * one. + * * @param obj the other non-null SRP key to compare to. - * @return <code>true</code> if the designated object is of the same type and - * value as this one. + * @return <code>true</code> if the designated object is of the same type + * and value as this one. */ public boolean equals(Object obj) { if (obj == null) - { - return false; - } - if (!(obj instanceof SRPPrivateKey)) - { - return false; - } + return false; + if (! (obj instanceof SRPPrivateKey)) + return false; SRPPrivateKey that = (SRPPrivateKey) obj; boolean result = super.equals(that) && X.equals(that.getX()); if (v != null) - { - result = result && v.equals(that.getV()); - } + result = result && v.equals(that.getV()); return result; } } |
