Signature.x

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class Signature {
 
    // 定义签名操作的常量
    public static const int SIGN;              // 签名操作类型
    public static const int UNINITIALIZED;     // 未初始化状态
    public static const int VERIFY;            // 验证操作类型
    public  @NotNilptr Signature newInstance(String);
    public  void initVerify(Key)
         throws IllegalArgumentException;
    public  void initSign(Key)
         throws IllegalArgumentException;
    public  void initSign(Key, Object);
    public  @NotNilptr byte[] sign()
         throws IllegalArgumentException;
    public  int sign(byte[], int, int)
         throws IllegalArgumentException;
    public  bool verify(byte[], int, int)
         throws IllegalArgumentException;
    public  void update(byte[], int, int)
         throws IllegalArgumentException;
    public  @NotNilptr String getAlgorithm();
    public  void setParameter(String, Object)
         throws IllegalArgumentException;
    public  @NotNilptr Object getParameter(String)
         throws IllegalArgumentException;
    public  void finalize();
    public  static final bool registrySignature(String, Signature);
    public  static final @NotNilptr Signature getInstance(String)
         throws IllegalArgumentException;
};