| java.lang.Object
 org.apache.java.security.MessageDigest
All known Subclasses: org.apache.java.security.MD5,
| MessageDigest | | abstract public class MessageDigest (Code) | | This interface abstracts a message digest algorithm.
Note: even if standard Java 1.1 APIs already provide a
message digest implementation, this class is used on those Java
runtime environments (like Kaffe) where the package
java.security is highly improbable to be found.
author:
Stefano Mazzocchi
version:
$Id: MessageDigest.java 264148 2005-08-29 14:21:04Z henning $ |
| Constructor Summary | |
| public | MessageDigest()
Creates the algorithm and reset its state. |
| Method Summary | |
| public void | append(byte[] block)
Append another block to the message. | | public void | append(byte[] block, int length)
Append another block of specified length to the message. | | abstract public void | append(byte[] block, int offset, int length)
Append another block of specified length to the message
starting at the given offset. | | public byte[] | digest(byte[] block)
Appends a message block and return its message digest.
Parameters:
block - A byte[]. | | public byte[] | digest(byte[] block, int length)
Appends a message block with specified length and return its
message digest.
Parameters:
block - A byte[].
Parameters:
length - An int. | | abstract public byte[] | digest(byte[] block, int offset, int length)
Appends a message block with specified length starting from the
given offset and return its message digest.
Parameters:
block - A byte[].
Parameters:
offset - An int.
Parameters:
length - An int. | | abstract public void | reset()
Resets the state of the class. |
| MessageDigest | | public MessageDigest()(Code) | | Creates the algorithm and reset its state.
|
| append | | public void append(byte[] block)(Code) | | Append another block to the message.
Parameters:
block - A byte[]. |
| append | | public void append(byte[] block, int length)(Code) | | Append another block of specified length to the message.
Parameters:
block - A byte[].
Parameters:
length - An int. |
| append | | abstract public void append(byte[] block, int offset, int length)(Code) | | Append another block of specified length to the message
starting at the given offset.
Parameters:
block - A byte[].
Parameters:
offset - An int.
Parameters:
length - An int. |
| digest | | public byte[] digest(byte[] block)(Code) | | Appends a message block and return its message digest.
Parameters:
block - A byte[]. A byte[]. |
| digest | | public byte[] digest(byte[] block, int length)(Code) | | Appends a message block with specified length and return its
message digest.
Parameters:
block - A byte[].
Parameters:
length - An int. A byte[]. |
| digest | | abstract public byte[] digest(byte[] block, int offset, int length)(Code) | | Appends a message block with specified length starting from the
given offset and return its message digest.
Parameters:
block - A byte[].
Parameters:
offset - An int.
Parameters:
length - An int. A byte[]. |
| reset | | abstract public void reset()(Code) | | Resets the state of the class. Beware: calling this
method erases all data previously inserted.
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