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Oracle Fusion Middleware Crypto Java API Reference for Oracle Security Developer Tools 11g Release 1 (11.1.1) E10668-05 |
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java.lang.Object
java.io.InputStream
java.io.FilterInputStream
oracle.security.crypto.core.DigestInputStream
public class DigestInputStream
An input stream that keeps a message digest of the bytes going through it.
The method computeCurrent() computes and returns the current digest.
Field Summary | |
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protected MessageDigest |
messageDigest The message digest used by this stream. |
Fields inherited from class java.io.FilterInputStream |
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in |
Constructor Summary | |
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DigestInputStream(java.io.InputStream is, MessageDigest md) Create a new DigestInputStream with specified InputStream and Message Digest. |
Method Summary | |
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byte[] |
computeCurrent() Compute and return the current digest. |
MessageDigest |
getMessageDigest() Return the message digest for this stream. |
int |
read() Read one byte of data. |
int |
read(byte[] b, int off, int len) Reads into an array of bytes. |
void |
setMessageDigest(MessageDigest md) Set the message digest for this stream. |
Methods inherited from class java.io.FilterInputStream |
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available, close, mark, markSupported, 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 |
Field Detail |
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protected MessageDigest messageDigest
Constructor Detail |
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public DigestInputStream(java.io.InputStream is, MessageDigest md)
Method Detail |
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public int read() throws java.io.IOException
read
in class java.io.FilterInputStream
java.io.IOException
public int read(byte[] b, int off, int len) throws java.io.IOException
read
in class java.io.FilterInputStream
b
- the buffer which the data is read intooff
- start offset of datalen
- maximum number of bytes readjava.io.IOException
public byte[] computeCurrent()
public MessageDigest getMessageDigest()
public void setMessageDigest(MessageDigest md)
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Oracle Fusion Middleware Crypto Java API Reference for Oracle Security Developer Tools 11g Release 1 (11.1.1) E10668-05 |
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