Package org.apache.tomcat.util.buf

Class Asn1Writer

  • public class Asn1Writer
extends java.lang.Object
    Utility class for writing ASN.1 DER-encoded data structures.

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static byte[] writeInteger​(int value)
      Writes an ASN.1 INTEGER value.
      static byte[] writeOctetString​(byte[] data)
      Writes an ASN.1 OCTET STRING value.
      static byte[] writeSequence​(byte[]... components)
      Writes an ASN.1 SEQUENCE containing the given components.
      static byte[] writeTag​(byte tagId, byte[] data)
      Writes an ASN.1 tag with the given data.

      • Methods inherited from class java.lang.Object

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

    • Method Detail

      • writeSequence

        public static byte[] writeSequence​(byte[]... components)
        Writes an ASN.1 SEQUENCE containing the given components.
        Parameters:
        components - the component byte arrays to include in the sequence
        Returns:
        the DER-encoded SEQUENCE bytes

      • writeInteger

        public static byte[] writeInteger​(int value)
        Writes an ASN.1 INTEGER value.
        Parameters:
        value - the integer value to encode
        Returns:
        the DER-encoded INTEGER bytes

      • writeOctetString

        public static byte[] writeOctetString​(byte[] data)
        Writes an ASN.1 OCTET STRING value.
        Parameters:
        data - the octet string bytes to encode
        Returns:
        the DER-encoded OCTET STRING bytes

      • writeTag

        public static byte[] writeTag​(byte tagId,
                              byte[] data)
        Writes an ASN.1 tag with the given data.
        Parameters:
        tagId - the ASN.1 tag identifier byte
        data - the data bytes to encode
        Returns:
        the DER-encoded tag and data bytes