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SUMMARY: INNER | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Object | +--javax.crypto.CipherSpi | +--com.ibm.crypto.fips.provider.DESedeCipher
This class implements the triple-DES algorithm (DES-EDE) in its various
modes (ECB
, CFB
, OFB
,
CBC
, PCBC
) and padding schemes
(PKCS5Padding
, NoPadding
).
DESCipher
Field Summary | |
---|---|
protected static int |
CBC_MODE
|
protected static int |
CFB_MODE
|
protected int |
cipherMode
|
static int |
DES_BLOCK_SIZE
|
protected static int |
ECB_MODE
|
static int[] |
initPermLeft0
|
static int[] |
initPermLeft1
|
static int[] |
initPermLeft2
|
static int[] |
initPermLeft3
|
static int[] |
initPermLeft4
|
static int[] |
initPermLeft5
|
static int[] |
initPermLeft6
|
static int[] |
initPermLeft7
|
static int[] |
initPermLeft8
|
static int[] |
initPermLeft9
|
static int[] |
initPermLeftA
|
static int[] |
initPermLeftB
|
static int[] |
initPermLeftC
|
static int[] |
initPermLeftD
|
static int[] |
initPermLeftE
|
static int[] |
initPermLeftF
|
static int[] |
initPermRight0
|
static int[] |
initPermRight1
|
static int[] |
initPermRight2
|
static int[] |
initPermRight3
|
static int[] |
initPermRight4
|
static int[] |
initPermRight5
|
static int[] |
initPermRight6
|
static int[] |
initPermRight7
|
static int[] |
initPermRight8
|
static int[] |
initPermRight9
|
static int[] |
initPermRightA
|
static int[] |
initPermRightB
|
static int[] |
initPermRightC
|
static int[] |
initPermRightD
|
static int[] |
initPermRightE
|
static int[] |
initPermRightF
|
protected static int |
OFB_MODE
|
protected static int |
PCBC_MODE
|
static int[] |
permLeft1
|
static int[] |
permLeft3
|
static int[] |
permLeft5
|
static int[] |
permLeft7
|
static int[] |
permLeft9
|
static int[] |
permLeftB
|
static int[] |
permLeftD
|
static int[] |
permLeftF
|
static int[] |
permRight0
|
static int[] |
permRight2
|
static int[] |
permRight4
|
static int[] |
permRight6
|
static int[] |
permRight8
|
static int[] |
permRightA
|
static int[] |
permRightC
|
static int[] |
permRightE
|
protected DESedeCrypt |
rawAlg
|
static int[] |
s0p
|
static int[] |
s1p
|
static int[] |
s2p
|
static int[] |
s3p
|
static int[] |
s4p
|
static int[] |
s5p
|
static int[] |
s6p
|
static int[] |
s7p
|
Constructor Summary | |
---|---|
DESedeCipher()
Creates an instance of DESede cipher with default ECB mode and PKCS5Padding. |
|
DESedeCipher(java.lang.String mode,
java.lang.String paddingScheme)
Creates an instance of DESede cipher with the requested mode and padding. |
Method Summary | |
---|---|
protected byte[] |
engineDoFinal(byte[] input,
int inputOffset,
int inputLen)
Encrypts or decrypts data in a single-part operation, or finishes a multiple-part operation. |
protected int |
engineDoFinal(byte[] input,
int inputOffset,
int inputLen,
byte[] output,
int outputOffset)
Encrypts or decrypts data in a single-part operation, or finishes a multiple-part operation. |
protected int |
engineGetBlockSize()
Returns the block size (in bytes). |
protected byte[] |
engineGetIV()
Returns the initialization vector (IV) in a new buffer. |
protected int |
engineGetKeySize(java.security.Key key)
Returns the key size of the given key object. |
protected int |
engineGetOutputSize(int inputLen)
Returns the length in bytes that an output buffer would need to be in order to hold the result of the next update or
doFinal operation, given the input length
inputLen (in bytes). |
protected java.security.AlgorithmParameters |
engineGetParameters()
Returns the parameters used with this cipher. |
protected void |
engineInit(int opmode,
java.security.Key key,
java.security.spec.AlgorithmParameterSpec params,
java.security.SecureRandom random)
Initializes this cipher with a key, a set of algorithm parameters, and a source of randomness. |
protected void |
engineInit(int opmode,
java.security.Key key,
java.security.AlgorithmParameters params,
java.security.SecureRandom random)
|
protected void |
engineInit(int opmode,
java.security.Key key,
java.security.SecureRandom random)
Initializes this cipher with a key and a source of randomness. |
protected void |
engineSetMode(java.lang.String mode)
Sets the mode of this cipher. |
protected void |
engineSetPadding(java.lang.String paddingScheme)
Sets the padding mechanism of this cipher. |
protected java.security.Key |
engineUnwrap(byte[] wrappedKey,
java.lang.String wrappedKeyAlgorithm,
int wrappedKeyType)
Unwrap a previously wrapped key. |
protected byte[] |
engineUpdate(byte[] input,
int inputOffset,
int inputLen)
Continues a multiple-part encryption or decryption operation (depending on how this cipher was initialized), processing another data part. |
protected int |
engineUpdate(byte[] input,
int inputOffset,
int inputLen,
byte[] output,
int outputOffset)
Continues a multiple-part encryption or decryption operation (depending on how this cipher was initialized), processing another data part. |
protected byte[] |
engineWrap(java.security.Key key)
Wrap a key. |
protected byte[] |
internalDoFinal(byte[] input,
int inputOffset,
int inputLen)
Encrypts or decrypts data in a single-part operation, or finishes a multiple-part operation. |
protected int |
internalDoFinal(byte[] input,
int inputOffset,
int inputLen,
byte[] output,
int outputOffset)
Encrypts or decrypts data in a single-part operation, or finishes a multiple-part operation. |
protected int |
internalGetBlockSize()
Returns the block size (in bytes). |
protected byte[] |
internalGetIV()
Returns the initialization vector (IV) in a new buffer. |
protected int |
internalGetKeySize(java.security.Key key)
Returns the key size of the given key object. |
protected int |
internalGetOutputSize(int inputLen)
Returns the length in bytes that an output buffer would need to be in order to hold the result of the next update or
doFinal operation, given the input length
inputLen (in bytes). |
protected java.security.AlgorithmParameters |
internalGetParameters()
Returns the parameters used with this cipher. |
protected void |
internalInit(int opmode,
java.security.Key key,
java.security.spec.AlgorithmParameterSpec params,
java.security.SecureRandom random)
Initializes this cipher with a key, a set of algorithm parameters, and a source of randomness. |
protected void |
internalInit(int opmode,
java.security.Key key,
java.security.AlgorithmParameters params,
java.security.SecureRandom random)
|
protected void |
internalInit(int opmode,
java.security.Key key,
java.security.SecureRandom random)
Initializes this cipher with a key and a source of randomness. |
protected void |
internalSetMode(java.lang.String mode)
Sets the mode of this cipher. |
protected void |
internalSetPadding(java.lang.String paddingScheme)
Sets the padding mechanism of this cipher. |
protected java.security.Key |
internalUnwrap(byte[] wrappedKey,
java.lang.String wrappedKeyAlgorithm,
int wrappedKeyType)
Unwrap a previously wrapped key. |
protected byte[] |
internalUpdate(byte[] input,
int inputOffset,
int inputLen)
Continues a multiple-part encryption or decryption operation (depending on how this cipher was initialized), processing another data part. |
protected int |
internalUpdate(byte[] input,
int inputOffset,
int inputLen,
byte[] output,
int outputOffset)
Continues a multiple-part encryption or decryption operation (depending on how this cipher was initialized), processing another data part. |
protected byte[] |
internalWrap(java.security.Key key)
Wrap a key. |
boolean |
isFipsApproved()
Module identifies if the cryptographic operation (algorithm) is FIPS certified |
protected void |
setRawAlg()
|
Methods inherited from class java.lang.Object |
---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
protected int cipherMode
protected static final int ECB_MODE
protected static final int CBC_MODE
protected static final int CFB_MODE
protected static final int OFB_MODE
protected static final int PCBC_MODE
protected DESedeCrypt rawAlg
public static final int DES_BLOCK_SIZE
public static final int[] s0p
public static final int[] s1p
public static final int[] s2p
public static final int[] s3p
public static final int[] s4p
public static final int[] s5p
public static final int[] s6p
public static final int[] s7p
public static final int[] permRight0
public static final int[] permLeft1
public static final int[] permRight2
public static final int[] permLeft3
public static final int[] permRight4
public static final int[] permLeft5
public static final int[] permRight6
public static final int[] permLeft7
public static final int[] permRight8
public static final int[] permLeft9
public static final int[] permRightA
public static final int[] permLeftB
public static final int[] permRightC
public static final int[] permLeftD
public static final int[] permRightE
public static final int[] permLeftF
public static final int[] initPermLeft0
public static final int[] initPermRight0
public static final int[] initPermLeft1
public static final int[] initPermRight1
public static final int[] initPermLeft2
public static final int[] initPermRight2
public static final int[] initPermLeft3
public static final int[] initPermRight3
public static final int[] initPermLeft4
public static final int[] initPermRight4
public static final int[] initPermLeft5
public static final int[] initPermRight5
public static final int[] initPermLeft6
public static final int[] initPermRight6
public static final int[] initPermLeft7
public static final int[] initPermRight7
public static final int[] initPermLeft8
public static final int[] initPermRight8
public static final int[] initPermLeft9
public static final int[] initPermRight9
public static final int[] initPermLeftA
public static final int[] initPermRightA
public static final int[] initPermLeftB
public static final int[] initPermRightB
public static final int[] initPermLeftC
public static final int[] initPermRightC
public static final int[] initPermLeftD
public static final int[] initPermRightD
public static final int[] initPermLeftE
public static final int[] initPermRightE
public static final int[] initPermLeftF
public static final int[] initPermRightF
Constructor Detail |
public DESedeCipher()
java.lang.SecurityException
- if this constructor fails to authenticate
the JCE framework.public DESedeCipher(java.lang.String mode, java.lang.String paddingScheme) throws java.security.NoSuchAlgorithmException, javax.crypto.NoSuchPaddingException
mode
- the cipher modepaddingScheme
- the padding mechanismjava.security.NoSuchAlgorithmException
- if the required cipher mode is
unavailablejavax.crypto.NoSuchPaddingException
- if the required padding mechanism
is unavailableMethod Detail |
protected void setRawAlg()
public boolean isFipsApproved()
AlgorithmStatus
isFipsApproved
in interface AlgorithmStatus
AlgorithmStatus.isFipsApproved()
protected void engineSetMode(java.lang.String mode) throws java.security.NoSuchAlgorithmException
engineSetMode
in class javax.crypto.CipherSpi
mode
- the cipher modejava.security.NoSuchAlgorithmException
- if the requested cipher mode does
not existFIPSRuntimeException
- if SelfTest.isFipsRunnable returns false.protected void internalSetMode(java.lang.String mode) throws java.security.NoSuchAlgorithmException
mode
- the cipher modejava.security.NoSuchAlgorithmException
- if the requested cipher mode does
not existprotected void engineSetPadding(java.lang.String paddingScheme) throws javax.crypto.NoSuchPaddingException
engineSetPadding
in class javax.crypto.CipherSpi
padding
- the padding mechanismjavax.crypto.NoSuchPaddingException
- if the requested padding mechanism
does not existFIPSRuntimeException
- if SelfTest.isFipsRunnable returns false.protected void internalSetPadding(java.lang.String paddingScheme) throws javax.crypto.NoSuchPaddingException
padding
- the padding mechanismjavax.crypto.NoSuchPaddingException
- if the requested padding mechanism
does not existprotected int engineGetBlockSize()
engineGetBlockSize
in class javax.crypto.CipherSpi
FIPSRuntimeException
- if SelfTest.isFipsRunnable returns false.protected int internalGetBlockSize()
protected int engineGetOutputSize(int inputLen)
update
or
doFinal
operation, given the input length
inputLen
(in bytes).
This call takes into account any unprocessed (buffered) data from a
previous update
call, and padding.
The actual output length of the next update
or
doFinal
call may be smaller than the length returned by
this method.
engineGetOutputSize
in class javax.crypto.CipherSpi
inputLen
- the input length (in bytes)FIPSRuntimeException
- if SelfTest.isFipsRunnable returns false.protected int internalGetOutputSize(int inputLen)
update
or
doFinal
operation, given the input length
inputLen
(in bytes).
This call takes into account any unprocessed (buffered) data from a
previous update
call, and padding.
The actual output length of the next update
or
doFinal
call may be smaller than the length returned by
this method.
inputLen
- the input length (in bytes)protected byte[] engineGetIV()
This is useful in the case where a random IV has been created (see init), or in the context of password-based encryption or decryption, where the IV is derived from a user-provided password.
engineGetIV
in class javax.crypto.CipherSpi
FIPSRuntimeException
- if SelfTest.isFipsRunnable returns false.protected byte[] internalGetIV()
This is useful in the case where a random IV has been created (see init), or in the context of password-based encryption or decryption, where the IV is derived from a user-provided password.
protected void engineInit(int opmode, java.security.Key key, java.security.SecureRandom random) throws java.security.InvalidKeyException
The cipher is initialized for one of the following four operations:
encryption, decryption, key wrapping or key unwrapping, depending on
the value of opmode
.
If this cipher requires an initialization vector (IV), it will get
it from random
.
This behaviour should only be used in encryption or key wrapping
mode, however.
When initializing a cipher that requires an IV for decryption or
key unwrapping, the IV
(same IV that was used for encryption or key wrapping) must be provided
explicitly as a
parameter, in order to get the correct result.
This method also cleans existing buffer and other related state information.
engineInit
in class javax.crypto.CipherSpi
opmode
- the operation mode of this cipher (this is one of
the following:
ENCRYPT_MODE
, DECRYPT_MODE
,
WRAP_MODE
or UNWRAP_MODE
)key
- the secret keyrandom
- the source of randomnessjava.security.InvalidKeyException
- if the given key is inappropriate for
initializing this cipherFIPSRuntimeException
- if SelfTest.isFipsRunnable returns false.protected void internalInit(int opmode, java.security.Key key, java.security.SecureRandom random) throws java.security.InvalidKeyException
The cipher is initialized for one of the following four operations:
encryption, decryption, key wrapping or key unwrapping, depending on
the value of opmode
.
If this cipher requires an initialization vector (IV), it will get
it from random
.
This behaviour should only be used in encryption or key wrapping
mode, however.
When initializing a cipher that requires an IV for decryption or
key unwrapping, the IV
(same IV that was used for encryption or key wrapping) must be provided
explicitly as a
parameter, in order to get the correct result.
This method also cleans existing buffer and other related state information.
opmode
- the operation mode of this cipher (this is one of
the following:
ENCRYPT_MODE
, DECRYPT_MODE
,
WRAP_MODE
or UNWRAP_MODE
)key
- the secret keyrandom
- the source of randomnessjava.security.InvalidKeyException
- if the given key is inappropriate for
initializing this cipherprotected void engineInit(int opmode, java.security.Key key, java.security.spec.AlgorithmParameterSpec params, java.security.SecureRandom random) throws java.security.InvalidKeyException, java.security.InvalidAlgorithmParameterException
The cipher is initialized for one of the following four operations:
encryption, decryption, key wrapping or key unwrapping, depending on
the value of opmode
.
If this cipher (including its underlying feedback or padding scheme)
requires any random bytes, it will get them from random
.
engineInit
in class javax.crypto.CipherSpi
opmode
- the operation mode of this cipher (this is one of
the following:
ENCRYPT_MODE
, DECRYPT_MODE
,
WRAP_MODE
or UNWRAP_MODE
)key
- the encryption keyparams
- the algorithm parametersrandom
- the source of randomnessjava.security.InvalidKeyException
- if the given key is inappropriate for
initializing this cipherjava.security.InvalidAlgorithmParameterException
- if the given algorithm
parameters are inappropriate for this cipherFIPSRuntimeException
- if SelfTest.isFipsRunnable returns false.protected void internalInit(int opmode, java.security.Key key, java.security.spec.AlgorithmParameterSpec params, java.security.SecureRandom random) throws java.security.InvalidKeyException, java.security.InvalidAlgorithmParameterException
The cipher is initialized for one of the following four operations:
encryption, decryption, key wrapping or key unwrapping, depending on
the value of opmode
.
If this cipher (including its underlying feedback or padding scheme)
requires any random bytes, it will get them from random
.
opmode
- the operation mode of this cipher (this is one of
the following:
ENCRYPT_MODE
, DECRYPT_MODE
,
WRAP_MODE
or UNWRAP_MODE
)key
- the encryption keyparams
- the algorithm parametersrandom
- the source of randomnessjava.security.InvalidKeyException
- if the given key is inappropriate for
initializing this cipherjava.security.InvalidAlgorithmParameterException
- if the given algorithm
parameters are inappropriate for this cipherprotected void engineInit(int opmode, java.security.Key key, java.security.AlgorithmParameters params, java.security.SecureRandom random) throws java.security.InvalidKeyException, java.security.InvalidAlgorithmParameterException
engineInit
in class javax.crypto.CipherSpi
FIPSRuntimeException
- if SelfTest.isFipsRunnable returns false.protected void internalInit(int opmode, java.security.Key key, java.security.AlgorithmParameters params, java.security.SecureRandom random) throws java.security.InvalidKeyException, java.security.InvalidAlgorithmParameterException
protected byte[] engineUpdate(byte[] input, int inputOffset, int inputLen)
The first inputLen
bytes in the input
buffer, starting at inputOffset
, are processed, and the
result is stored in a new buffer.
engineUpdate
in class javax.crypto.CipherSpi
input
- the input bufferinputOffset
- the offset in input
where the input
startsinputLen
- the input lengthjava.lang.IllegalStateException
- if this cipher is in a wrong state
(e.g., has not been initialized)FIPSRuntimeException
- if SelfTest.isFipsRunnable returns false.protected byte[] internalUpdate(byte[] input, int inputOffset, int inputLen)
The first inputLen
bytes in the input
buffer, starting at inputOffset
, are processed, and the
result is stored in a new buffer.
input
- the input bufferinputOffset
- the offset in input
where the input
startsinputLen
- the input lengthjava.lang.IllegalStateException
- if this cipher is in a wrong state
(e.g., has not been initialized)protected int engineUpdate(byte[] input, int inputOffset, int inputLen, byte[] output, int outputOffset) throws javax.crypto.ShortBufferException
The first inputLen
bytes in the input
buffer, starting at inputOffset
, are processed, and the
result is stored in the output
buffer, starting at
outputOffset
.
engineUpdate
in class javax.crypto.CipherSpi
input
- the input bufferinputOffset
- the offset in input
where the input
startsinputLen
- the input lengthoutput
- the buffer for the resultoutputOffset
- the offset in output
where the result
is storedoutput
javax.crypto.ShortBufferException
- if the given output buffer is too small
to hold the resultFIPSRuntimeException
- if SelfTest.isFipsRunnable returns false.protected int internalUpdate(byte[] input, int inputOffset, int inputLen, byte[] output, int outputOffset) throws javax.crypto.ShortBufferException
The first inputLen
bytes in the input
buffer, starting at inputOffset
, are processed, and the
result is stored in the output
buffer, starting at
outputOffset
.
input
- the input bufferinputOffset
- the offset in input
where the input
startsinputLen
- the input lengthoutput
- the buffer for the resultoutputOffset
- the offset in output
where the result
is storedoutput
javax.crypto.ShortBufferException
- if the given output buffer is too small
to hold the resultprotected byte[] engineDoFinal(byte[] input, int inputOffset, int inputLen) throws javax.crypto.IllegalBlockSizeException, javax.crypto.BadPaddingException
The first inputLen
bytes in the input
buffer, starting at inputOffset
, and any input bytes that
may have been buffered during a previous update
operation,
are processed, with padding (if requested) being applied.
The result is stored in a new buffer.
The cipher is reset to its initial state (uninitialized) after this call.
engineDoFinal
in class javax.crypto.CipherSpi
input
- the input bufferinputOffset
- the offset in input
where the input
startsinputLen
- the input lengthjavax.crypto.IllegalBlockSizeException
- if this cipher is a block cipher,
no padding has been requested (only in encryption mode), and the total
input length of the data processed by this cipher is not a multiple of
block sizejavax.crypto.BadPaddingException
- if this cipher is in decryption mode,
and (un)padding has been requested, but the decrypted data is not
bounded by the appropriate padding bytesFIPSRuntimeException
- if SelfTest.isFipsRunnable returns false.protected byte[] internalDoFinal(byte[] input, int inputOffset, int inputLen) throws javax.crypto.IllegalBlockSizeException, javax.crypto.BadPaddingException
The first inputLen
bytes in the input
buffer, starting at inputOffset
, and any input bytes that
may have been buffered during a previous update
operation,
are processed, with padding (if requested) being applied.
The result is stored in a new buffer.
The cipher is reset to its initial state (uninitialized) after this call.
input
- the input bufferinputOffset
- the offset in input
where the input
startsinputLen
- the input lengthjavax.crypto.IllegalBlockSizeException
- if this cipher is a block cipher,
no padding has been requested (only in encryption mode), and the total
input length of the data processed by this cipher is not a multiple of
block sizejavax.crypto.BadPaddingException
- if this cipher is in decryption mode,
and (un)padding has been requested, but the decrypted data is not
bounded by the appropriate padding bytesprotected int engineDoFinal(byte[] input, int inputOffset, int inputLen, byte[] output, int outputOffset) throws javax.crypto.IllegalBlockSizeException, javax.crypto.ShortBufferException, javax.crypto.BadPaddingException
The first inputLen
bytes in the input
buffer, starting at inputOffset
, and any input bytes that
may have been buffered during a previous update
operation,
are processed, with padding (if requested) being applied.
The result is stored in the output
buffer, starting at
outputOffset
.
The cipher is reset to its initial state (uninitialized) after this call.
engineDoFinal
in class javax.crypto.CipherSpi
input
- the input bufferinputOffset
- the offset in input
where the input
startsinputLen
- the input lengthoutput
- the buffer for the resultoutputOffset
- the offset in output
where the result
is storedoutput
javax.crypto.IllegalBlockSizeException
- if this cipher is a block cipher,
no padding has been requested (only in encryption mode), and the total
input length of the data processed by this cipher is not a multiple of
block sizejavax.crypto.ShortBufferException
- if the given output buffer is too small
to hold the resultjavax.crypto.BadPaddingException
- if this cipher is in decryption mode,
and (un)padding has been requested, but the decrypted data is not
bounded by the appropriate padding bytesFIPSRuntimeException
- if SelfTest.isFipsRunnable returns false.protected int internalDoFinal(byte[] input, int inputOffset, int inputLen, byte[] output, int outputOffset) throws javax.crypto.IllegalBlockSizeException, javax.crypto.ShortBufferException, javax.crypto.BadPaddingException
The first inputLen
bytes in the input
buffer, starting at inputOffset
, and any input bytes that
may have been buffered during a previous update
operation,
are processed, with padding (if requested) being applied.
The result is stored in the output
buffer, starting at
outputOffset
.
The cipher is reset to its initial state (uninitialized) after this call.
input
- the input bufferinputOffset
- the offset in input
where the input
startsinputLen
- the input lengthoutput
- the buffer for the resultoutputOffset
- the offset in output
where the result
is storedoutput
javax.crypto.IllegalBlockSizeException
- if this cipher is a block cipher,
no padding has been requested (only in encryption mode), and the total
input length of the data processed by this cipher is not a multiple of
block sizejavax.crypto.ShortBufferException
- if the given output buffer is too small
to hold the resultjavax.crypto.BadPaddingException
- if this cipher is in decryption mode,
and (un)padding has been requested, but the decrypted data is not
bounded by the appropriate padding bytesprotected java.security.AlgorithmParameters engineGetParameters()
The returned parameters may be the same that were used to initialize this cipher, or may contain the default set of parameters or a set of randomly generated parameters used by the underlying cipher implementation (provided that the underlying cipher implementation uses a default set of parameters or creates new parameters if it needs parameters but was not initialized with any).
engineGetParameters
in class javax.crypto.CipherSpi
FIPSRuntimeException
- if SelfTest.isFipsRunnable returns false.protected java.security.AlgorithmParameters internalGetParameters()
The returned parameters may be the same that were used to initialize this cipher, or may contain the default set of parameters or a set of randomly generated parameters used by the underlying cipher implementation (provided that the underlying cipher implementation uses a default set of parameters or creates new parameters if it needs parameters but was not initialized with any).
protected int engineGetKeySize(java.security.Key key) throws java.security.InvalidKeyException
engineGetKeySize
in class javax.crypto.CipherSpi
key
- the key object.java.security.InvalidKeyException
- if key<.code> is invalid.FIPSRuntimeException
- if SelfTest.isFipsRunnable returns false.
protected int internalGetKeySize(java.security.Key key) throws java.security.InvalidKeyException
key
- the key object.java.security.InvalidKeyException
- if key<.code> is invalid.
protected byte[] engineWrap(java.security.Key key) throws javax.crypto.IllegalBlockSizeException, java.security.InvalidKeyException
engineWrap
in class javax.crypto.CipherSpi
key
- the key to be wrapped.javax.crypto.IllegalBlockSizeException
- if this cipher is a block
cipher, no padding has been requested, and the length of the
encoding of the key to be wrapped is not a
multiple of the block size.java.security.InvalidKeyException
- if it is impossible or unsafe to
wrap the key with this cipher (e.g., a hardware protected key is
being passed to a software only cipher).FIPSRuntimeException
- if SelfTest.isFipsRunnable returns false.protected byte[] internalWrap(java.security.Key key) throws javax.crypto.IllegalBlockSizeException, java.security.InvalidKeyException
key
- the key to be wrapped.javax.crypto.IllegalBlockSizeException
- if this cipher is a block
cipher, no padding has been requested, and the length of the
encoding of the key to be wrapped is not a
multiple of the block size.java.security.InvalidKeyException
- if it is impossible or unsafe to
wrap the key with this cipher (e.g., a hardware protected key is
being passed to a software only cipher).protected java.security.Key engineUnwrap(byte[] wrappedKey, java.lang.String wrappedKeyAlgorithm, int wrappedKeyType) throws java.security.InvalidKeyException, java.security.NoSuchAlgorithmException
engineUnwrap
in class javax.crypto.CipherSpi
wrappedKey
- the key to be unwrapped.wrappedKeyAlgorithm
- the algorithm the wrapped key is for.wrappedKeyType
- the type of the wrapped key.
This is one of Cipher.SECRET_KEY
,
Cipher.PRIVATE_KEY
, or Cipher.PUBLIC_KEY
.java.security.InvalidKeyException
- if wrappedKey
does not
represent a wrapped key, or if the algorithm associated with the
wrapped key is different from wrappedKeyAlgorithm
and/or its key type is different from wrappedKeyType
.java.security.NoSuchAlgorithmException
- if no installed providers
can create keys for the wrappedKeyAlgorithm
.FIPSRuntimeException
- if SelfTest.isFipsRunnable returns false.protected java.security.Key internalUnwrap(byte[] wrappedKey, java.lang.String wrappedKeyAlgorithm, int wrappedKeyType) throws java.security.InvalidKeyException, java.security.NoSuchAlgorithmException
wrappedKey
- the key to be unwrapped.wrappedKeyAlgorithm
- the algorithm the wrapped key is for.wrappedKeyType
- the type of the wrapped key.
This is one of Cipher.SECRET_KEY
,
Cipher.PRIVATE_KEY
, or Cipher.PUBLIC_KEY
.java.security.InvalidKeyException
- if wrappedKey
does not
represent a wrapped key, or if the algorithm associated with the
wrapped key is different from wrappedKeyAlgorithm
and/or its key type is different from wrappedKeyType
.java.security.NoSuchAlgorithmException
- if no installed providers
can create keys for the wrappedKeyAlgorithm
.
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