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)
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ASN1InputStream(InputStream input, int limit) - Create an ASN1InputStream where no DER object will be longer than limit.
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ASN1InputStream(InputStream input, int limit, boolean lazyEvaluate) - Create an ASN1InputStream where no DER object will be longer than limit, and constructed
objects such as sequences will be parsed lazily.
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ASN1InputStream(byte[] input) - Create an ASN1InputStream based on the input byte array.
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ASN1InputStream(byte[] input, boolean lazyEvaluate) - Create an ASN1InputStream based on the input byte array.
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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(InputStream input,
int limit,
boolean lazyEvaluate)
Create an ASN1InputStream where no DER object will be longer than limit, and constructed
objects such as sequences will be parsed lazily.
input
- stream containing ASN.1 encoded data.limit
- maximum size of a DER encoded object.lazyEvaluate
- true if parsing inside constructed objects can be delayed.
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.
ASN1InputStream
public ASN1InputStream(byte[] input,
boolean lazyEvaluate)
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.lazyEvaluate
- true if parsing inside constructed objects can be delayed.
buildObject
protected DERObject buildObject(int tag,
int tagNo,
int length)
throws IOException
build an object given its tag and the number of bytes to construct it from.
readFully
protected void readFully(byte[] bytes)
throws IOException
readLength
protected int readLength()
throws IOException
readObject
public DERObject readObject()
throws IOException