DESedeKeySpec

open class DESedeKeySpec : KeySpec

kotlin.Any
↳	javax.crypto.spec.DESedeKeySpec

This class specifies a DES-EDE ("triple-DES") key.

Summary

Constants
static Int	`DES_EDE_KEY_LEN` The constant which defines the length of a DESede key in bytes.

Public constructors
`DESedeKeySpec(key: ByteArray!)` Creates a DESedeKeySpec object using the first 24 bytes in `key` as the key material for the DES-EDE key.
`DESedeKeySpec(key: ByteArray!, offset: Int)` Creates a DESedeKeySpec object using the first 24 bytes in `key`, beginning at `offset` inclusive, as the key material for the DES-EDE key.

Public methods
open ByteArray!	`getKey()` Returns the DES-EDE key.
open static Boolean	`isParityAdjusted(key: ByteArray!, offset: Int)` Checks if the given DES-EDE key, starting at `offset` inclusive, is parity-adjusted.

static val DES_EDE_KEY_LEN: Int

The constant which defines the length of a DESede key in bytes.

Value: 24

DESedeKeySpec(key: ByteArray!)

Creates a DESedeKeySpec object using the first 24 bytes in 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

Parameters
`key`	ByteArray!: the buffer with the DES-EDE key material. The first 24 bytes of the buffer are copied to protect against subsequent modification.

Exceptions
`java.lang.NullPointerException`	if `key` is null.
`java.security.InvalidKeyException`	if the given key material is shorter than 24 bytes.

DESedeKeySpec(
    key: ByteArray!, 
    offset: Int)

Creates a DESedeKeySpec object using the first 24 bytes in 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.

Parameters
`key`	ByteArray!: 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`	Int: the offset in `key`, where the DES-EDE key material starts.

Exceptions
`java.lang.NullPointerException`	if `key` is null.
`java.security.InvalidKeyException`	if the given key material, starting at `offset` inclusive, is shorter than 24 bytes

open fun getKey(): ByteArray!

Returns the DES-EDE key.

Return
`ByteArray!`	the DES-EDE key. Returns a new array each time this method is called.

open static fun isParityAdjusted(
    key: ByteArray!, 
    offset: Int
): Boolean

Checks if the given DES-EDE key, starting at offset inclusive, is parity-adjusted.

Parameters
`key`	ByteArray!: a byte array which holds the key value
`offset`	Int: the offset into the byte array

Return
`Boolean`	true if the given DES-EDE key is parity-adjusted, false otherwise

Exceptions
`java.lang.NullPointerException`	if `key` is null.
`java.security.InvalidKeyException`	if the given key material, starting at `offset` inclusive, is shorter than 24 bytes