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Bouncy Castle Cryptography 1.45 | ||||||||
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java.lang.Objectjava.io.InputStream
java.io.FilterInputStream
org.bouncycastle.asn1.ASN1InputStream
public class ASN1InputStream
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.
| Field Summary |
|---|
| Fields inherited from class java.io.FilterInputStream |
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in |
| Fields inherited from interface org.bouncycastle.asn1.DERTags |
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APPLICATION, BIT_STRING, BMP_STRING, BOOLEAN, CONSTRUCTED, ENUMERATED, EXTERNAL, GENERAL_STRING, GENERALIZED_TIME, 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 |
| Constructor Summary | |
|---|---|
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(java.io.InputStream is)
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ASN1InputStream(java.io.InputStream input,
int limit)
Create an ASN1InputStream where no DER object will be longer than limit. |
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ASN1InputStream(java.io.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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| Method Summary | |
|---|---|
protected DERObject |
buildObject(int tag,
int tagNo,
int length)
build an object given its tag and the number of bytes to construct it from. |
protected void |
readFully(byte[] bytes)
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protected int |
readLength()
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DERObject |
readObject()
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| Methods inherited from class java.io.FilterInputStream |
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available, close, mark, markSupported, read, read, read, reset, skip |
| Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
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public ASN1InputStream(java.io.InputStream is)
public ASN1InputStream(byte[] input)
input - array containing ASN.1 encoded data.
public ASN1InputStream(byte[] input,
boolean lazyEvaluate)
input - array containing ASN.1 encoded data.lazyEvaluate - true if parsing inside constructed objects can be delayed.
public ASN1InputStream(java.io.InputStream input,
int limit)
input - stream containing ASN.1 encoded data.limit - maximum size of a DER encoded object.
public ASN1InputStream(java.io.InputStream input,
int limit,
boolean lazyEvaluate)
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.| Method Detail |
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protected int readLength()
throws java.io.IOException
java.io.IOException
protected void readFully(byte[] bytes)
throws java.io.IOException
java.io.IOException
protected DERObject buildObject(int tag,
int tagNo,
int length)
throws java.io.IOException
java.io.IOException
public DERObject readObject()
throws java.io.IOException
java.io.IOException
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