Class MacOutputStream

  • All Implemented Interfaces:
    java.io.Closeable, java.io.Flushable, java.lang.AutoCloseable

    public class MacOutputStream
    extends java.io.OutputStream
    An output stream that wraps around a Mac (message authentication code algorithm). This is currently used for symmetric (private) keys, but in theory could be used with assymetric (public/private) keys.
    Since:
    5.3.6
    • Constructor Summary

      Constructors 
      Constructor Description
      MacOutputStream​(javax.crypto.Mac mac)  
    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      java.lang.String getResult()
      Should only be invoked once, immediately after this stream is closed; it generates the final MAC result, and returns it as a Base64 encoded string.
      static MacOutputStream streamFor​(java.security.Key key)  
      void write​(byte[] b)  
      void write​(byte[] b, int off, int len)  
      void write​(int b)  
      • Methods inherited from class java.io.OutputStream

        close, flush, nullOutputStream
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Constructor Detail

    • Method Detail

      • streamFor

        public static MacOutputStream streamFor​(java.security.Key key)
                                         throws java.io.IOException
        Throws:
        java.io.IOException
      • getResult

        public java.lang.String getResult()
        Should only be invoked once, immediately after this stream is closed; it generates the final MAC result, and returns it as a Base64 encoded string.
        Returns:
        Base64 encoded MAC result
      • write

        public void write​(int b)
                   throws java.io.IOException
        Specified by:
        write in class java.io.OutputStream
        Throws:
        java.io.IOException
      • write

        public void write​(byte[] b)
                   throws java.io.IOException
        Overrides:
        write in class java.io.OutputStream
        Throws:
        java.io.IOException
      • write

        public void write​(byte[] b,
                          int off,
                          int len)
                   throws java.io.IOException
        Overrides:
        write in class java.io.OutputStream
        Throws:
        java.io.IOException