Package org.apache.sshd.common.util.io.der

Class DERWriter

  • All Implemented Interfaces:
    java.io.Closeable, java.io.Flushable, java.lang.AutoCloseable
    public class DERWriter
extends java.io.FilterOutputStream
    A bare-minimum DER encoder - just enough so we can encoder signatures and keys data

    • Field Summary

      Fields 
      Modifier and Type Field Description
      private byte[] lenBytes  

      • Fields inherited from class java.io.FilterOutputStream

        out

    • Constructor Summary

      Constructors 
      Constructor Description
      DERWriter()  
      DERWriter​(int initialSize)  
      DERWriter​(java.io.OutputStream stream)  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      private boolean isPositive​(byte b)  
      DERWriter startSequence()  
      byte[] toByteArray()  
      void writeBigInteger​(byte... bytes)
      The integer is always considered to be positive, so if the first byte is < 0, we pad with a zero to make it positive
      void writeBigInteger​(byte[] bytes, int off, int len)
      The integer is always considered to be positive, so if the first byte is < 0, we pad with a zero to make it positive
      void writeBigInteger​(java.math.BigInteger value)  
      void writeLength​(int len)  
      void writeObject​(byte tag, int len, byte... data)  
      void writeObject​(ASN1Object obj)  

      • Methods inherited from class java.io.FilterOutputStream

        close, flush, write, write, write

      • Methods inherited from class java.io.OutputStream

        nullOutputStream

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • lenBytes

        private final byte[] lenBytes

    • Constructor Detail

      • DERWriter

        public DERWriter()

      • DERWriter

        public DERWriter​(int initialSize)

      • DERWriter

        public DERWriter​(java.io.OutputStream stream)

    • Method Detail

      • startSequence

        public DERWriter startSequence()

      • writeBigInteger

        public void writeBigInteger​(java.math.BigInteger value)
                     throws java.io.IOException
        Throws:
        java.io.IOException

      • writeBigInteger

        public void writeBigInteger​(byte... bytes)
                     throws java.io.IOException
        The integer is always considered to be positive, so if the first byte is < 0, we pad with a zero to make it positive
        Parameters:
        bytes - BigInteger bytes
        Throws:
        java.io.IOException - If failed to write the bytes

      • writeBigInteger

        public void writeBigInteger​(byte[] bytes,
                            int off,
                            int len)
                     throws java.io.IOException
        The integer is always considered to be positive, so if the first byte is < 0, we pad with a zero to make it positive
        Parameters:
        bytes - BigInteger bytes
        off - Offset in bytes data
        len - Number of bytes to write
        Throws:
        java.io.IOException - If failed to write the bytes

      • isPositive

        private boolean isPositive​(byte b)

      • writeObject

        public void writeObject​(ASN1Object obj)
                 throws java.io.IOException
        Throws:
        java.io.IOException

      • writeObject

        public void writeObject​(byte tag,
                        int len,
                        byte... data)
                 throws java.io.IOException
        Throws:
        java.io.IOException

      • writeLength

        public void writeLength​(int len)
                 throws java.io.IOException
        Throws:
        java.io.IOException

      • toByteArray

        public byte[] toByteArray()
                   throws java.io.IOException
        Throws:
        java.io.IOException