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Class javax.crypto.spec.DESedeKeySpec
java.lang.Object
|
+----javax.crypto.spec.DESedeKeySpec
- public class DESedeKeySpec
- extends Object
- implements KeySpec
This class specifies a DES-EDE ("triple-DES") key.
- See Also:
- java.security.Key, java.security.KeyFactory, java.security.spec.KeySpec
DESedeKeySpec(byte[])
- Uses the first 24 bytes in
key
as the DES-EDE key
DESedeKeySpec(byte[], int)
- Uses the first 24 bytes in
key
, beginning at
offset
, as the DES-EDE key
getKey()
- Returns the DES-EDE key.
isParityAdjusted(byte[], int)
- Checks if the given DES-EDE key, starting at
offset
,
is parity-adjusted.
DESedeKeySpec
public DESedeKeySpec(byte[] key) throws InvalidKeyException
- Uses the first 24 bytes in
key
as the DES-EDE key
- Parameters:
- key - the buffer with the DES-EDE key
- Throws:
InvalidKeyException
- if the given key material is shorter
than 24 bytes
DESedeKeySpec
public DESedeKeySpec(byte[] key,
int offset) throws InvalidKeyException
- Uses the first 24 bytes in
key
, beginning at
offset
, as the DES-EDE key
- Parameters:
- key - the buffer with the DES-EDE key
- offset - the offset in
key
, where the DES-EDE key
starts
- Throws:
InvalidKeyException
- if the given key material, starting at
offset
, is shorter than 24 bytes
getKey
public byte[] getKey()
- Returns the DES-EDE key.
- Returns:
- the DES-EDE key
isParityAdjusted
public static boolean isParityAdjusted(byte[] key,
int offset) throws InvalidKeyException
- Checks if the given DES-EDE key, starting at
offset
,
is parity-adjusted.
- Returns:
- true if the given DES-EDE key is parity-adjusted, false
otherwise
- Throws:
InvalidKeyException
- if the given key material, starting at
offset
, is shorter than 24 bytes
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