| Modifier and Type | Field and Description |
|---|---|
static int |
DES_EDE_KEY_LEN
The constant which defines the length of a DESede key in bytes.
|
| Constructor and Description |
|---|
DESedeKeySpec(byte[] key)
Creates a DESedeKeySpec object using the first 24 bytes in
key as the key material for the DES-EDE key. |
DESedeKeySpec(byte[] key,
int offset)
Creates a DESedeKeySpec object using the first 24 bytes in
key, beginning at offset inclusive,
as the key material for the DES-EDE key. |
| Modifier and Type | Method and Description |
|---|---|
byte[] |
getKey()
Returns the DES-EDE key.
|
static boolean |
isParityAdjusted(byte[] key,
int offset)
Checks if the given DES-EDE key, starting at
offset
inclusive, is parity-adjusted. |
public static final int DES_EDE_KEY_LEN
public DESedeKeySpec(byte[] key)
throws InvalidKeyException
key as the key material for the DES-EDE key.
The bytes that constitute the DES-EDE key are those between
key[0] and key[23] inclusive
key - the buffer with the DES-EDE key material. The first
24 bytes of the buffer are copied to protect against subsequent
modification.NullPointerException - if key is null.InvalidKeyException - if the given key material is shorter
than 24 bytes.public DESedeKeySpec(byte[] key,
int offset)
throws InvalidKeyException
key, beginning at offset inclusive,
as the key material for the DES-EDE key.
The bytes that constitute the DES-EDE key are those between
key[offset] and key[offset+23] inclusive.
key - the buffer with the DES-EDE key material. The first
24 bytes of the buffer beginning at offset inclusive
are copied to protect against subsequent modification.offset - the offset in key, where the DES-EDE key
material starts.NullPointerException - if key is null.InvalidKeyException - if the given key material, starting at
offset inclusive, is shorter than 24 bytespublic byte[] getKey()
public static boolean isParityAdjusted(byte[] key,
int offset)
throws InvalidKeyException
offset
inclusive, is parity-adjusted.key - a byte array which holds the key valueoffset - the offset into the byte arrayNullPointerException - if key is null.InvalidKeyException - if the given key material, starting at
offset inclusive, is shorter than 24 bytes Submit a bug or feature
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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