java.lang.Object | |
↳ | javax.crypto.spec.RC2ParameterSpec |
This class specifies the parameters used with the RC2 algorithm.
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.
Public Constructors | |||||||||||
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Constructs a parameter set for RC2 from the given effective key size
(in bits).
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Constructs a parameter set for RC2 from the given effective key size
(in bits) and an 8-byte IV.
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Constructs a parameter set for RC2 from the given effective key size
(in bits) and IV.
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Public Methods | |||||||||||
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Tests for equality between the specified object and this
object.
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Returns the effective key size in bits.
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Returns the IV or null if this parameter set does not contain an IV.
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Calculates a hash code value for the object.
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Inherited Methods | |||||||||||
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Constructs a parameter set for RC2 from the given effective key size (in bits).
effectiveKeyBits | the effective key size in bits. |
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Constructs a parameter set for RC2 from the given effective key size (in bits) and an 8-byte IV.
The bytes that constitute the IV are those between
iv[0]
and iv[7]
inclusive.
effectiveKeyBits | the effective key size in bits. |
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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.
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Constructs a parameter set for RC2 from the given effective key size (in bits) and IV.
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. |
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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.
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Tests for equality between the specified object and this object. Two RC2ParameterSpec objects are considered equal if their effective key sizes and IVs are equal. (Two IV references are considered equal if both are null.)
obj | the object to test for equality with this object. |
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obj
is null or otherwise.
Returns the effective key size in bits.
Returns the IV or null if this parameter set does not contain an IV.
Calculates a hash code value for the object. Objects that are equal will also have the same hashcode.