PGPDigestCalculator (Bouncy Castle Library 1.68 API Specification)

```
public interface PGPDigestCalculator
```
A digest calculator, which consumes a stream of data and computes a digest value over it.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`int`	`getAlgorithm()`	Return the `algorithm number` representing the digest implemented by this calculator.
`byte[]`	`getDigest()`	Return the digest calculated on what has been written to the calculator's output stream.
`java.io.OutputStream`	`getOutputStream()`	Returns a stream that will accept data for the purpose of calculating a digest.
`void`	`reset()`	Reset the underlying digest calculator

- Method Detail
  - getAlgorithm
```
int getAlgorithm()
```
    Return the algorithm number representing the digest implemented by this calculator.
    
    Returns:
    
    the hash algorithm number
  - getOutputStream
```
java.io.OutputStream getOutputStream()
```
    Returns a stream that will accept data for the purpose of calculating a digest. Use org.bouncycastle.util.io.TeeOutputStream if you want to accumulate the data on the fly as well.
    
    Returns:
    
    an OutputStream that data to be digested can be written to.
  - getDigest
```
byte[] getDigest()
```
    Return the digest calculated on what has been written to the calculator's output stream.
    
    Returns:
    
    a digest.
  - reset
```
void reset()
```
    Reset the underlying digest calculator