DatawithRSA

java.lang.Object
- java.security.SignatureSpi
- - java.security.Signature
  - - com.ibm.crypto.fips.provider.DatawithRSA

```
public final class DatawithRSA
extends java.security.Signature
```
This class implements signature without this algorithm doing the hashing with RSA

Field Summary
- Fields inherited from class java.security.Signature
  SIGN, state, UNINITIALIZED, VERIFY
- Fields inherited from class java.security.SignatureSpi
  appRandom

Constructor Summary

Constructors
Constructor and Description

DatawithRSA()
Construct a blank RSA object.

Constructors
Constructor and Description
`DatawithRSA()` Construct a blank RSA object.

Method Summary

Methods
Modifier and Type	Method and Description
`protected java.lang.Object`	`engineGetParameter(java.lang.String key)` Have to implement Signature's abstract method engineGetParameter to be a concrete class.
`protected void`	`engineInitSign(java.security.PrivateKey privateKey)` Initialize the RSA object with a RSA private key.
`protected void`	`engineInitVerify(java.security.PublicKey publicKey)` Initialize the RSA object with a RSA public key.
`protected void`	`engineSetParameter(java.lang.String key, java.lang.Object param)` Have to implement Signature's abstract method engineSetParameter to be a concrete class.
`protected byte[]`	`engineSign()` Get message digest for all the data thus far updated, then sign the message digest.
`protected void`	`engineUpdate(byte b)` Update a byte to be signed or verified.
`protected void`	`engineUpdate(byte[] dataBuf, int off, int len)` Update an array of bytes to be signed or verified.
`protected boolean`	`engineVerify(byte[] signature)` Verify the signature (compare the result with the message digest).
`protected void`	`finalize()` This function resets the class variables.
`protected java.lang.Object`	`internalGetParameter(java.lang.String key)` Have to implement Signature's abstract method engineGetParameter to be a concrete class.
`protected void`	`internalInitSign(java.security.PrivateKey privateKey)` Initialize the RSA object with a RSA private key.
`protected void`	`internalInitVerify(java.security.PublicKey publicKey)` Initialize the RSA object with a RSA public key.
`protected void`	`internalSetParameter(java.lang.String key, java.lang.Object param)` Have to implement Signature's abstract method engineSetParameter to be a concrete class.
`protected byte[]`	`internalSign()` Get message digest for all the data thus far updated, then sign the message digest.
`protected void`	`internalUpdate(byte b)` Update a byte to be signed or verified.
`protected boolean`	`internalVerify(byte[] signature)` Verify the signature (compare the result with the message digest).

Methods inherited from class java.security.Signature
clone, getAlgorithm, getInstance, getInstance, getInstance, getParameter, getParameters, getProvider, initSign, initSign, initVerify, initVerify, setParameter, setParameter, sign, sign, toString, update, update, update, update, verify, verify

Methods inherited from class java.security.SignatureSpi
engineGetParameters, engineInitSign, engineSetParameter, engineSign, engineUpdate, engineVerify

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

- Constructor Detail
  - DatawithRSA
```
public DatawithRSA()
```
    Construct a blank RSA object. It must be initialized before being usable for signing or verifying.
- Method Detail
  - engineSetParameter
```
protected void engineSetParameter(java.lang.String key,
                      java.lang.Object param)
```
    Have to implement Signature's abstract method engineSetParameter to be a concrete class.
    
    Specified by:
    
    engineSetParameter in class java.security.SignatureSpi
    
    Throws:
    
    FIPSRuntimeException - if SelfTest.isFipsRunnable returns false.
  - internalSetParameter
```
protected void internalSetParameter(java.lang.String key,
                        java.lang.Object param)
```
    Have to implement Signature's abstract method engineSetParameter to be a concrete class.
  - engineGetParameter
```
protected java.lang.Object engineGetParameter(java.lang.String key)
```
    Have to implement Signature's abstract method engineGetParameter to be a concrete class.
    
    Specified by:
    
    engineGetParameter in class java.security.SignatureSpi
    
    Throws:
    
    FIPSRuntimeException - if SelfTest.isFipsRunnable returns false.
  - internalGetParameter
```
protected java.lang.Object internalGetParameter(java.lang.String key)
```
    Have to implement Signature's abstract method engineGetParameter to be a concrete class.
  - engineInitSign
```
protected void engineInitSign(java.security.PrivateKey privateKey)
                       throws java.security.InvalidKeyException
```
    Initialize the RSA object with a RSA private key.
    
    Specified by:
    
    engineInitSign in class java.security.SignatureSpi
    
    Parameters:
    privateKey - the RSA private key
    
    Throws:
    
    java.security.InvalidKeyException - if the key is not a valid RSA private key.
    
    FIPSRuntimeException - if SelfTest.isFipsRunnable returns false.
  - internalInitSign
```
protected void internalInitSign(java.security.PrivateKey privateKey)
                         throws java.security.InvalidKeyException
```
    Initialize the RSA object with a RSA private key.
    
    Parameters:
    privateKey - the RSA private key
    
    Throws:
    
    java.security.InvalidKeyException - if the key is not a valid RSA private key.
  - engineInitVerify
```
protected void engineInitVerify(java.security.PublicKey publicKey)
                         throws java.security.InvalidKeyException
```
    Initialize the RSA object with a RSA public key.
    
    Specified by:
    
    engineInitVerify in class java.security.SignatureSpi
    
    Parameters:
    publicKey - the RSA public key
    
    Throws:
    
    java.security.InvalidKeyException - if the key is not a valid RSA public key.
    
    FIPSRuntimeException - if SelfTest.isFipsRunnable returns false.
  - internalInitVerify
```
protected void internalInitVerify(java.security.PublicKey publicKey)
                           throws java.security.InvalidKeyException
```
    Initialize the RSA object with a RSA public key.
    
    Parameters:
    publicKey - the RSA public key
    
    Throws:
    
    java.security.InvalidKeyException - if the key is not a valid RSA public key.
  - engineUpdate
```
protected void engineUpdate(byte b)
```
    Update a byte to be signed or verified.
    
    Specified by:
    
    engineUpdate in class java.security.SignatureSpi
    
    Parameters:
    b - the byte to updated.
    
    Throws:
    
    FIPSRuntimeException - if SelfTest.isFipsRunnable returns false.
  - internalUpdate
```
protected void internalUpdate(byte b)
```
    Update a byte to be signed or verified.
    
    Parameters:
    b - the byte to updated.
  - engineUpdate
```
protected void engineUpdate(byte[] dataBuf,
                int off,
                int len)
```
    Update an array of bytes to be signed or verified.
    
    Specified by:
    
    engineUpdate in class java.security.SignatureSpi
    
    Parameters:
    data - the bytes to be updated.
  - engineSign
```
protected byte[] engineSign()
                     throws java.security.SignatureException
```
    Get message digest for all the data thus far updated, then sign the message digest.
    
    Specified by:
    
    engineSign in class java.security.SignatureSpi
    
    Returns:
    the signature.
    
    Throws:
    
    FIPSRuntimeException - if SelfTest.isFipsRunnable returns false.
    
    java.security.SignatureException - if the signature object was not properly initialized, or if another exception occurs.
  - internalSign
```
protected byte[] internalSign()
                       throws java.security.SignatureException
```
    Get message digest for all the data thus far updated, then sign the message digest.
    
    Returns:
    the signature.
    
    Throws:
    
    java.security.SignatureException - if the signature object was not properly initialized, or if another exception occurs.
  - engineVerify
```
protected boolean engineVerify(byte[] signature)
                        throws java.security.SignatureException
```
    Verify the signature (compare the result with the message digest).
    
    Specified by:
    
    engineVerify in class java.security.SignatureSpi
    
    Throws:
    
    java.security.SignatureException - if the signature object was not properly initialized, or if another exception occurs.
    
    FIPSRuntimeException - if SelfTest.isFipsRunnable returns false.
  - internalVerify
```
protected boolean internalVerify(byte[] signature)
                          throws java.security.SignatureException
```
    Verify the signature (compare the result with the message digest).
    
    Throws:
    
    java.security.SignatureException - if the signature object was not properly initialized, or if another exception occurs.
  - finalize
```
protected void finalize()
```
    This function resets the class variables.
    
    Overrides:
    
    finalize in class java.lang.Object

Fields inherited from class java.security.Signature

Fields inherited from class java.security.SignatureSpi

Methods inherited from class java.security.Signature

Methods inherited from class java.security.SignatureSpi

Methods inherited from class java.lang.Object

DatawithRSA

engineSetParameter

internalSetParameter

engineGetParameter

internalGetParameter

engineInitSign

internalInitSign

engineInitVerify

internalInitVerify

engineUpdate

internalUpdate

engineUpdate

engineSign

internalSign

engineVerify

internalVerify

finalize