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Class javax.crypto.spec.DESedeKeySpec
java.lang.Object
|
+----javax.crypto.spec.DESedeKeySpec
- public class DESedeKeySpec
- extends Object
- implements KeySpec
A class that provides a specification for a DESede key.
-
DES_EDE_KEY_LEN
-
-
ident
-
-
DESedeKeySpec(byte[])
- Uses the first 24 bytes in key as the DESede key material.
-
DESedeKeySpec(byte[], int)
- Uses the first 24 bytes in key, beginning at offset, as the DES-EDE
key.
-
getKey()
- Returns the DESede key.
-
isParityAdjusted(byte[], int)
- Checks if the given DESede key, starting at offset, is
parity-adjusted.
ident
public static final String ident
DES_EDE_KEY_LEN
public static final int DES_EDE_KEY_LEN
DESedeKeySpec
public DESedeKeySpec(byte key[]) throws InvalidKeyException
- Uses the first 24 bytes in key as the DESede key material.
- Parameters:
- key - the buffer with the DES-EDE key material
- 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 material
- 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 DESede key.
- Returns:
- the DESede key.
isParityAdjusted
public static boolean isParityAdjusted(byte key[],
int offset) throws InvalidKeyException
- Checks if the given DESede 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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