java.lang.Object
- io.github.mmm.crypto.algorithm.AbstractSecurityAlgorithm
- - io.github.mmm.crypto.asymmetric.sign.SignatureProcessorImplWithHash

All Implemented Interfaces:

CryptoAlgorithm, SignatureProcessor, CryptoChunker, CryptoProcessor

Direct Known Subclasses:

SignatureSignerImplCryptorWithHash, SignatureSignerImplWithHash, SignatureVerifierImplCryptorWithHash, SignatureVerifierImplWithHash
```
public abstract class SignatureProcessorImplWithHash
extends AbstractSecurityAlgorithm
implements SignatureProcessor
```
Implementation of SignatureProcessor combining a SignatureSigner with a HashCreator.

Since:

1.0.0

Author:

Joerg Hohwiller (hohwille at users.sourceforge.net)

Constructor Summary

Constructors
Constructor Description

SignatureProcessorImplWithHash(HashCreator hashGenerator)
The constructor.

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`String`	`getAlgorithm()`
`protected HashCreator`	`getHashGenerator()`
`protected abstract CryptoAlgorithm`	`getSignatureAlgorithm()`
`void`	`reset()`	Will reset the internal state of this object.
`void`	`update(byte[] input, int offset, int length)`

Methods inherited from class io.github.mmm.crypto.algorithm.AbstractSecurityAlgorithm
creationFailedException, creationFailedException, creationFailedException, creationFailedException, getAlgorithm, toString

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface io.github.mmm.crypto.CryptoChunker
update, update

Methods inherited from interface io.github.mmm.crypto.CryptoProcessor
process, process, process, process

- Constructor Detail
  - SignatureProcessorImplWithHash
```
public SignatureProcessorImplWithHash(HashCreator hashGenerator)
```
    The constructor.
    
    Parameters:
    
    hashGenerator - the HashCreator to apply as extension.
- Method Detail
  - getSignatureAlgorithm
```
protected abstract CryptoAlgorithm getSignatureAlgorithm()
```
    Returns:
    
    the CryptoAlgorithm to extend.
  - getHashGenerator
```
protected HashCreator getHashGenerator()
```
    Returns:
    
    the HashCreator to apply as extension.
  - getAlgorithm
```
public String getAlgorithm()
```
    Specified by:
    
    getAlgorithm in interface CryptoAlgorithm
    
    Returns:
    
    the name of the underlying algorithm (e.g. "RSA", "NONEwithECDSA", etc.).
    
    See Also:
    
    Key.getAlgorithm(), Signature.getAlgorithm(), MessageDigest.getAlgorithm(), SecureRandom.getAlgorithm(), Cipher.getAlgorithm()
  - update
```
public void update(byte[] input,
                   int offset,
                   int length)
```
    Specified by:
    
    update in interface CryptoChunker
    
    Parameters:
    
    input - the next chunk of data.
    
    offset - the index where to start reading data from input.
    
    length - the number of bytes to read from input.
    
    See Also:
    
    MessageDigest.update(byte[], int, int), Signature.update(byte[], int, int)
  - reset
```
public void reset()
```
    Description copied from interface: CryptoProcessor
    
    Will reset the internal state of this object. Please note that complex algorithms especially for Cryptor may not reusable. It is therefore preferable to always create a fresh instance for each cryptographic task.
    
    Specified by:
    
    reset in interface CryptoProcessor
    
    See Also:
    
    MessageDigest.reset()

Class SignatureProcessorImplWithHash

Constructor Summary

Method Summary

Methods inherited from class io.github.mmm.crypto.algorithm.AbstractSecurityAlgorithm

Methods inherited from class java.lang.Object

Methods inherited from interface io.github.mmm.crypto.CryptoChunker

Methods inherited from interface io.github.mmm.crypto.CryptoProcessor

Constructor Detail

SignatureProcessorImplWithHash

Method Detail

getSignatureAlgorithm

getHashGenerator

getAlgorithm

update

reset