|
|||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
@TransactionType(value=SUPPORTS) public interface AESKey
AESKey
contains a 16/24/32 byte key for AES computations based
on the Rijndael algorithm.
When the key data is set, the key is initialized and ready for use.
KeyBuilder
,
Signature
,
javacardx.crypto.Cipher
,
javacardx.crypto.KeyEncryption
Method Summary | |
---|---|
byte |
getKey(byte[] keyData,
short kOff)
Returns the Key data in plain text. |
void |
setKey(byte[] keyData,
short kOff)
Sets the Key data. |
Methods inherited from interface javacard.security.Key |
---|
clearKey, getSize, getType, getTypeName, isInitialized |
Method Detail |
---|
void setKey(byte[] keyData, short kOff) throws CryptoException, NullPointerException, ArrayIndexOutOfBoundsException
Sets the Key
data. The plaintext length of input key data
is 16/24/32 bytes. The data format is big-endian and right-aligned (the
least significant bit is the least significant bit of last byte). Input
key data is copied into the internal representation.
Note:
javacardx.crypto.KeyEncryption
interface and the Cipher
object specified via setKeyCipher()
is not null
, keyData
is decrypted using the Cipher
object.
keyData
- byte array containing key initialization datakOff
- offset within keyData to start
CryptoException
- with the following reason code:
CryptoException.ILLEGAL_VALUE
if input
data decryption is required and fails.
ArrayIndexOutOfBoundsException
- if kOff
is negative or the
keyData
array is too short.
NullPointerException
- if the keyData
parameter is
null
.byte getKey(byte[] keyData, short kOff) throws CryptoException
Key
data in plain text. The length of output
key data is 16/24/32 bytes. The data format is big-endian and
right-aligned (the least significant bit is the least significant bit of
last byte).
keyData
- byte array to return key datakOff
- offset within keyData
to start
CryptoException
- with the following reason code:
CryptoException.UNINITIALIZED_KEY
if
the key data has not been successfully initialized since
the time the initialized state of the key was set to
false.
Key
|
|||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |