AlgorithmParameterSpec
public class RC2ParameterSpec extends Object implements AlgorithmParameterSpec
The parameters consist of an effective key size and optionally an 8-byte initialization vector (IV) (only in feedback mode).
This class can be used to initialize a Cipher
object that implements the RC2 algorithm.
Constructor | Description |
---|---|
RC2ParameterSpec |
Constructs a parameter set for RC2 from the given effective key size (in bits). |
RC2ParameterSpec |
Constructs a parameter set for RC2 from the given effective key size (in bits) and an 8-byte IV. |
RC2ParameterSpec |
Constructs a parameter set for RC2 from the given effective key size (in bits) and IV. |
Modifier and Type | Method | Description |
---|---|---|
boolean |
equals |
Tests for equality between the specified object and this object. |
int |
getEffectiveKeyBits() |
Returns the effective key size in bits. |
byte[] |
getIV() |
Returns the IV or null if this parameter set does not contain an IV. |
int |
hashCode() |
Calculates a hash code value for the object. |
public RC2ParameterSpec(int effectiveKeyBits)
effectiveKeyBits
- the effective key size in bits.public RC2ParameterSpec(int effectiveKeyBits, byte[] iv)
The bytes that constitute the IV are those between iv[0]
and iv[7]
inclusive.
effectiveKeyBits
- the effective key size in bits.iv
- the buffer with the 8-byte IV. The first 8 bytes of the buffer are copied to protect against subsequent modification.IllegalArgumentException
- if iv
is null.public RC2ParameterSpec(int effectiveKeyBits, byte[] iv, int offset)
The IV is taken from iv
, starting at offset
inclusive. The bytes that constitute the IV are those between iv[offset]
and iv[offset+7]
inclusive.
effectiveKeyBits
- the effective key size in bits.iv
- the buffer with the IV. The first 8 bytes of the buffer beginning at offset
inclusive are copied to protect against subsequent modification.offset
- the offset in iv
where the 8-byte IV starts.IllegalArgumentException
- if iv
is null.public int getEffectiveKeyBits()
public byte[] getIV()
public boolean equals(Object obj)
null
.)public int hashCode()
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Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
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https://docs.oracle.com/en/java/javase/21/docs/api/java.base/javax/crypto/spec/RC2ParameterSpec.html