**javacard.security** 
 ====Class CryptoException  ====
  *[[javacard:java-card-api:object|java.lang.Object]] \\ 
    *[[javacard:java-card-api:throwable|java.lang.Throwable]] \\ 
      *[[javacard:java-card-api:exception|java.lang.Exception]] \\ 
        *[[javacard:java-card-api:runtimeexception|java.lang.RuntimeException]] \\ 
          *[[javacard:java-card-api:cardruntimeexception|javacard.framework.CardRuntimeException]] \\ 


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public class **CryptoException**extends [[javacard:java-card-api:CardRuntimeException|CardRuntimeException]] 



CryptoException represents a cryptography-related exception.
 The API classes throw Java Card runtime environment-owned instances of CryptoException.
 Java Card runtime environment-owned instances of exception classes are temporary Java Card runtime environment Entry Point Objects
 and can be accessed from any applet context. References to these temporary objects
 cannot be stored in class variables or instance variables or array components.




**See Also:**[[javacard:java-card-api:KeyBuilder|KeyBuilder]] , 
[[javacard:java-card-api:MessageDigest|MessageDigest]] , 
[[javacard:java-card-api:Signature|Signature]] , 
[[javacard:java-card-api:RandomData|RandomData]] , 
[[javacard:java-card-api:Cipher|javacardx.crypto.Cipher]]  
 


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^ Field Summary ^^ 
| **static short** | **[[javacard:java-card-api:CryptoException#ILLEGAL_USE|ILLEGAL_USE]] **          This reason code is used to indicate that the signature or cipher algorithm does not pad the incoming message and the input message is not block aligned. |
| **static short** | **[[javacard:java-card-api:CryptoException#ILLEGAL_VALUE|ILLEGAL_VALUE]] **          This reason code is used to indicate that one or more input parameters is out of allowed bounds. |
| **static short** | **[[javacard:java-card-api:CryptoException#INVALID_INIT|INVALID_INIT]] **          This reason code is used to indicate that the signature or cipher object has not been correctly initialized for the requested operation. |
| **static short** | **[[javacard:java-card-api:CryptoException#NO_SUCH_ALGORITHM|NO_SUCH_ALGORITHM]] **          This reason code is used to indicate that the requested algorithm or key type is not supported. |
| **static short** | **[[javacard:java-card-api:CryptoException#UNINITIALIZED_KEY|UNINITIALIZED_KEY]] **          This reason code is used to indicate that the key is uninitialized. |

 




^ Constructor Summary ^^ 
| **[[javacard:java-card-api:CryptoException#CryptoException(short)|CryptoException]] **(short reason)          Constructs a CryptoException with the specified reason. |

 




^ Method Summary ^^ 
| **static void** | **[[javacard:java-card-api:CryptoException#throwIt(short)|throwIt]] **(short reason)          Throws the Java Card runtime environment-owned instance of CryptoException with the specified reason. |

 

^ Methods inherited from class javacard.framework.CardRuntimeException ^ 
| [[javacard:java-card-api:CardRuntimeException#getReason()|getReason]] , [[javacard:java-card-api:CardRuntimeException#setReason(short)|setReason]]  |

 

^ Methods inherited from class java.lang.Object ^ 
| [[javacard:java-card-api:Object#equals(java.lang.Object)|equals]]  |

 






^ Field Detail ^ 



 === ILLEGAL_VALUE === 
public static final short **ILLEGAL_VALUE**

This reason code is used to indicate that one or more input parameters
 is out of allowed bounds.


**See Also:**[[javacard:java-card-api:constant-values#javacard.security.CryptoException.ILLEGAL_VALUE|Constant Field Values]]  
 

 
 


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 === UNINITIALIZED_KEY === 
public static final short **UNINITIALIZED_KEY**

This reason code is used to indicate that the key is uninitialized.


**See Also:**[[javacard:java-card-api:constant-values#javacard.security.CryptoException.UNINITIALIZED_KEY|Constant Field Values]]  
 

 
 


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 === NO_SUCH_ALGORITHM === 
public static final short **NO_SUCH_ALGORITHM**

This reason code is used to indicate that the requested algorithm or key type
 is not supported.


**See Also:**[[javacard:java-card-api:constant-values#javacard.security.CryptoException.NO_SUCH_ALGORITHM|Constant Field Values]]  
 

 
 


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 === INVALID_INIT === 
public static final short **INVALID_INIT**

This reason code is used to indicate that the signature or cipher object has not been
 correctly initialized for the requested operation.


**See Also:**[[javacard:java-card-api:constant-values#javacard.security.CryptoException.INVALID_INIT|Constant Field Values]]  
 

 
 


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 === ILLEGAL_USE === 
public static final short **ILLEGAL_USE**

This reason code is used to indicate that the signature or cipher algorithm does
 not pad the incoming message and the input message is not block aligned.


**See Also:**[[javacard:java-card-api:constant-values#javacard.security.CryptoException.ILLEGAL_USE|Constant Field Values]]  
 

 
 






^ Constructor Detail ^ 



 === CryptoException === 
public **CryptoException**(short reason)

Constructs a CryptoException with the specified reason.
 To conserve on resources use throwIt()
 to use the Java Card runtime environment-owned instance of this class.


**Parameters:**reason - the reason for the exception 
 

 
 






^ Method Detail ^ 



 === throwIt === 
public static void **throwIt**(short reason)

Throws the Java Card runtime environment-owned instance of CryptoException with the specified reason.
 Java Card runtime environment-owned instances of exception classes are temporary Java Card runtime environment Entry Point Objects
 and can be accessed from any applet context. References to these temporary objects
 cannot be stored in class variables or instance variables or array components.
 See //Runtime Environment Specification for the Java Card Platform//, section 6.2.1 for details.

 
 

**Parameters:**reason - the reason for the exception
 
 
**Throws:**
[[javacard:java-card-api:CryptoException|CryptoException]]  - always