import org.bouncycastle.crypto.generators.EphemeralKeyPairGenerator; //导入依赖的package包/类
/**
 * Initialise the encryptor.
 *
 * @param publicKey      the recipient's/sender's public key parameters
 * @param params         encoding and derivation parameters.
 * @param ephemeralKeyPairGenerator             the ephemeral key pair generator to use.
 */
public void init(AsymmetricKeyParameter publicKey, CipherParameters params, EphemeralKeyPairGenerator ephemeralKeyPairGenerator)
{
    this.forEncryption = true;
    this.pubParam = publicKey;
    this.param = (IESParameters)params;
    this.keyPairGenerator = ephemeralKeyPairGenerator;
}
 

import org.bouncycastle.crypto.generators.EphemeralKeyPairGenerator; //导入依赖的package包/类
/**
 * Initialise the decryptor.
 *
 * @param publicKey      the recipient's/sender's public key parameters
 * @param params         encoding and derivation parameters, may be wrapped to include an IV for an underlying block cipher.
 * @param ephemeralKeyPairGenerator             the ephemeral key pair generator to use.
 */
public void init(AsymmetricKeyParameter publicKey, CipherParameters params, EphemeralKeyPairGenerator ephemeralKeyPairGenerator)
{
    this.forEncryption = true;
    this.pubParam = publicKey;
    this.keyPairGenerator = ephemeralKeyPairGenerator;

    extractParams(params);
}