Added in API level 1

RC5ParameterSpec

open class RC5ParameterSpec : AlgorithmParameterSpec
kotlin.Any
   ↳ javax.crypto.spec.RC5ParameterSpec

This class specifies the parameters used with the RC5 algorithm.

The parameters consist of a version number, a rounds count, a word size, and optionally an initialization vector (IV) (only in feedback mode).

This class can be used to initialize a Cipher object that implements the RC5 algorithm as supplied by RSA Security Inc., or any parties authorized by RSA Security.

Summary

Public constructors
RC5ParameterSpec(version: Int, rounds: Int, wordSize: Int)

Constructs a parameter set for RC5 from the given version, number of rounds and word size (in bits).

RC5ParameterSpec(version: Int, rounds: Int, wordSize: Int, iv: ByteArray!)

Constructs a parameter set for RC5 from the given version, number of rounds, word size (in bits), and IV.

RC5ParameterSpec(version: Int, rounds: Int, wordSize: Int, iv: ByteArray!, offset: Int)

Constructs a parameter set for RC5 from the given version, number of rounds, word size (in bits), and IV.

Public methods
open Boolean
equals(other: Any?)

Tests for equality between the specified object and this object.

open ByteArray!

Returns the IV or null if this parameter set does not contain an IV.

open Int

Returns the number of rounds.

open Int

Returns the version.

open Int

Returns the word size in bits.

open Int

Calculates a hash code value for the object.

Public constructors

RC5ParameterSpec

Added in API level 1
RC5ParameterSpec(
    version: Int,
    rounds: Int,
    wordSize: Int)

Constructs a parameter set for RC5 from the given version, number of rounds and word size (in bits).

Parameters
version Int: the version.
rounds Int: the number of rounds.
wordSize Int: the word size in bits.

RC5ParameterSpec

Added in API level 1
RC5ParameterSpec(
    version: Int,
    rounds: Int,
    wordSize: Int,
    iv: ByteArray!)

Constructs a parameter set for RC5 from the given version, number of rounds, word size (in bits), and IV.

Note that the size of the IV (block size) must be twice the word size. The bytes that constitute the IV are those between iv[0] and iv[2*(wordSize/8)-1] inclusive.

Parameters
version Int: the version.
rounds Int: the number of rounds.
wordSize Int: the word size in bits.
iv ByteArray!: the buffer with the IV. The first 2*(wordSize/8) bytes of the buffer are copied to protect against subsequent modification.
Exceptions
java.lang.IllegalArgumentException if iv is null or (iv.length < 2 * (wordSize / 8))

RC5ParameterSpec

Added in API level 1
RC5ParameterSpec(
    version: Int,
    rounds: Int,
    wordSize: Int,
    iv: ByteArray!,
    offset: Int)

Constructs a parameter set for RC5 from the given version, number of rounds, word size (in bits), and IV.

The IV is taken from iv, starting at offset inclusive. Note that the size of the IV (block size), starting at offset inclusive, must be twice the word size. The bytes that constitute the IV are those between iv[offset] and iv[offset+2*(wordSize/8)-1] inclusive.

Parameters
version Int: the version.
rounds Int: the number of rounds.
wordSize Int: the word size in bits.
iv ByteArray!: the buffer with the IV. The first 2*(wordSize/8) bytes of the buffer beginning at offset inclusive are copied to protect against subsequent modification.
offset Int: the offset in iv where the IV starts.
Exceptions
java.lang.IllegalArgumentException if iv is null or (iv.length - offset < 2 * (wordSize / 8))

Public methods

equals

Added in API level 1
open fun equals(other: Any?): Boolean

Tests for equality between the specified object and this object. Two RC5ParameterSpec objects are considered equal if their version numbers, number of rounds, word sizes, and IVs are equal. (Two IV references are considered equal if both are null.)

Parameters
obj the object to test for equality with this object.
Return
Boolean true if the objects are considered equal, false if obj is null or otherwise.

getIV

Added in API level 1
open fun getIV(): ByteArray!

Returns the IV or null if this parameter set does not contain an IV.

Return
ByteArray! the IV or null if this parameter set does not contain an IV. Returns a new array each time this method is called.

getRounds

Added in API level 1
open fun getRounds(): Int

Returns the number of rounds.

Return
Int the number of rounds.

getVersion

Added in API level 1
open fun getVersion(): Int

Returns the version.

Return
Int the version.

getWordSize

Added in API level 1
open fun getWordSize(): Int

Returns the word size in bits.

Return
Int the word size in bits.

hashCode

Added in API level 1
open fun hashCode(): Int

Calculates a hash code value for the object. Objects that are equal will also have the same hashcode.

Return
Int a hash code value for this object.