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

All Implemented Interfaces:

CryptoAlgorithm, SignatureProcessor, SignatureVerifier<SignatureBinary>, SignatureVerifierSimple, CryptoChunker, CryptoProcessor
```
public class SignatureVerifierImplCryptorWithHash
extends SignatureProcessorImplWithHash
implements SignatureVerifier<SignatureBinary>
```
Implementation of SignatureVerifier combining a Decryptor with a HashCreator.

Since:

1.0.0

Author:

Joerg Hohwiller (hohwille at users.sourceforge.net)

Constructor Summary

Constructors
Constructor Description

SignatureVerifierImplCryptorWithHash(HashCreator hashGenerator, Decryptor decryptor)
The constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected Decryptor`	`getSignatureAlgorithm()`
`void`	`reset()`	Will reset the internal state of this object.
`boolean`	`verifyAfterUpdate(byte[] signature, int offset, int length)`

Methods inherited from class io.github.mmm.crypto.asymmetric.sign.SignatureProcessorImplWithHash
getAlgorithm, getHashGenerator, update

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.algorithm.CryptoAlgorithm
getAlgorithm

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

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

Methods inherited from interface io.github.mmm.crypto.asymmetric.sign.SignatureVerifier
verify, verify, verify, verifyAfterUpdate, verifyUnsafe

Methods inherited from interface io.github.mmm.crypto.asymmetric.sign.SignatureVerifierSimple
verify, verify, verify, verifyAfterUpdate

- Constructor Detail
  - SignatureVerifierImplCryptorWithHash
```
public SignatureVerifierImplCryptorWithHash(HashCreator hashGenerator,
                                            Decryptor decryptor)
```
    The constructor.
    
    Parameters:
    
    hashGenerator - the HashCreator to apply as extension.
    
    decryptor - the Decryptor to extend.
- Method Detail
  - getSignatureAlgorithm
```
protected Decryptor getSignatureAlgorithm()
```
    Specified by:
    
    getSignatureAlgorithm in class SignatureProcessorImplWithHash
    
    Returns:
    
    the CryptoAlgorithm to extend.
  - verifyAfterUpdate
```
public boolean verifyAfterUpdate(byte[] signature,
                                 int offset,
                                 int length)
```
    Specified by:
    
    verifyAfterUpdate in interface SignatureVerifierSimple
    
    Parameters:
    
    signature - the byte array with the signature as raw data.
    
    offset - the index where to start reading data from signature.
    
    length - the number of bytes to read from signature.
    
    Returns:
    
    true if the given signature is valid, false otherwise.
  - 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
    
    Overrides:
    
    reset in class SignatureProcessorImplWithHash
    
    See Also:
    
    MessageDigest.reset()

Class SignatureVerifierImplCryptorWithHash

Constructor Summary

Method Summary

Methods inherited from class io.github.mmm.crypto.asymmetric.sign.SignatureProcessorImplWithHash

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.algorithm.CryptoAlgorithm

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

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

Methods inherited from interface io.github.mmm.crypto.asymmetric.sign.SignatureVerifier

Methods inherited from interface io.github.mmm.crypto.asymmetric.sign.SignatureVerifierSimple

Constructor Detail

SignatureVerifierImplCryptorWithHash

Method Detail

getSignatureAlgorithm

verifyAfterUpdate

reset