org.bouncycastle.asn1
Class ASN1InputStream
FilterInputStream
org.bouncycastle.asn1.ASN1InputStream
- DERTags
public class ASN1InputStream
extends FilterInputStream
a general purpose ASN.1 decoder - note: this class differs from the
others in that it returns null after it has read the last object in
the stream. If an ASN.1 NULL is encountered a DER/BER Null object is
returned.
APPLICATION , BIT_STRING , BMP_STRING , BOOLEAN , CONSTRUCTED , ENUMERATED , EXTERNAL , GENERALIZED_TIME , GENERAL_STRING , GRAPHIC_STRING , IA5_STRING , INTEGER , NULL , NUMERIC_STRING , OBJECT_IDENTIFIER , OCTET_STRING , PRINTABLE_STRING , SEQUENCE , SEQUENCE_OF , SET , SET_OF , T61_STRING , TAGGED , UNIVERSAL_STRING , UTC_TIME , UTF8_STRING , VIDEOTEX_STRING , VISIBLE_STRING |
ASN1InputStream(InputStream is)
|
ASN1InputStream(InputStream input, int limit) - Create an ASN1InputStream where no DER object will be longer than limit.
|
ASN1InputStream(byte[] input) - Create an ASN1InputStream based on the input byte array.
|
ASN1InputStream
public ASN1InputStream(InputStream is)
ASN1InputStream
public ASN1InputStream(InputStream input,
int limit)
Create an ASN1InputStream where no DER object will be longer than limit.
input
- stream containing ASN.1 encoded data.limit
- maximum size of a DER encoded object.
ASN1InputStream
public ASN1InputStream(byte[] input)
Create an ASN1InputStream based on the input byte array. The length of DER objects in
the stream is automatically limited to the length of the input array.
input
- array containing ASN.1 encoded data.
buildObject
protected DERObject buildObject(int tag,
int tagNo,
byte[] bytes)
throws IOException
build an object given its tag and a byte stream to construct it
from.
readFully
protected void readFully(byte[] bytes)
throws IOException
readLength
protected int readLength()
throws IOException
readObject
public DERObject readObject()
throws IOException