Package org.jenkinsci.main.modules.instance_identity.pem

Class Asn1Object

java.lang.Object
org.jenkinsci.main.modules.instance_identity.pem.Asn1Object
@Restricted(org.kohsuke.accmod.restrictions.NoExternalUse.class) public class Asn1Object extends Object
An ASN.1 TLV. The object is not parsed. It can only handle integers and strings.
Author:
zhang

  • Field Details

    • type

      protected final int type

    • length

      protected final int length

    • value

      protected final byte[] value

    • tag

      protected final int tag

  • Constructor Details

    • Asn1Object

      public Asn1Object(int tag, int length, byte[] value)
      Construct a ASN.1 TLV. The TLV could be either a constructed or primitive entity.

      The first byte in DER encoding is made of following fields, 

      -------------------------------------------------
|Bit 8|Bit 7|Bit 6|Bit 5|Bit 4|Bit 3|Bit 2|Bit 1|
-------------------------------------------------
|  Class    | CF  |     +      Type             |
-------------------------------------------------
      • Class: Universal, Application, Context or Private
      • CF: Constructed flag. If 1, the field is constructed.
      • Type: This is actually called tag in ASN.1. It indicates data type (Integer, String) or a construct (sequence, choice, set).
      Parameters:
      tag - Tag or Identifier
      length - Length of the field
      value - Encoded octet string for the field.

  • Method Details

    • getType

      public int getType()

    • getLength

      public int getLength()

    • getValue

      public byte[] getValue()

    • isConstructed

      public boolean isConstructed()

    • getParser

      public DerParser getParser() throws IOException
      For constructed field, return a parser for its content.
      Returns:
      A parser for the construct.
      Throws:
      IOException - if problems parsing

    • getInteger

      public BigInteger getInteger() throws IOException
      Get the value as integer
      Returns:
      the integer
      Throws:
      IOException - if problems parsing

    • getString

      public String getString() throws IOException
      Get value as string. Most strings are treated as Latin-1.
      Returns:
      value as string
      Throws:
      IOException - if problems parsing