JDK8/Java8源码在线阅读

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
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package java.security.spec;

import java.math.BigInteger;

/**
 * This class specifies an RSA public key.
 *
 * @author Jan Luehe
 *
 *
 * @see java.security.Key
 * @see java.security.KeyFactory
 * @see KeySpec
 * @see X509EncodedKeySpec
 * @see RSAPrivateKeySpec
 * @see RSAPrivateCrtKeySpec
 */

public class RSAPublicKeySpec implements KeySpec {

    private final BigInteger modulus;
    private final BigInteger publicExponent;
    private final AlgorithmParameterSpec params;

    /**
     * Creates a new RSAPublicKeySpec.
     *
     * @param modulus the modulus
     * @param publicExponent the public exponent
     */
    public RSAPublicKeySpec(BigInteger modulus, BigInteger publicExponent) {
        this(modulus, publicExponent, null);
    }

    /**
     * Creates a new RSAPublicKeySpec with additional key parameters.
     *
     * @param modulus the modulus
     * @param publicExponent the public exponent
     * @param params the parameters associated with this key, may be null
     * @since 8
     */
    public RSAPublicKeySpec(BigInteger modulus, BigInteger publicExponent,
            AlgorithmParameterSpec params) {
        this.modulus = modulus;
        this.publicExponent = publicExponent;
        this.params = params;
    }


    /**
     * Returns the modulus.
     *
     * @return the modulus
     */
    public BigInteger getModulus() {
        return this.modulus;
    }

    /**
     * Returns the public exponent.
     *
     * @return the public exponent
     */
    public BigInteger getPublicExponent() {

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