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Added in API level 33

XECPrivateKeySpec

open class XECPrivateKeySpec : KeySpec

kotlin.Any
	java.security.spec.XECPrivateKeySpec

A class representing elliptic curve private keys as defined in RFC 7748, including the curve and other algorithm parameters. The private key is represented as an encoded scalar value. The decoding procedure defined in the RFC includes an operation that forces certain bits of the key to either 1 or 0. This operation is known as "pruning" or "clamping" the private key. All arrays in this spec are unpruned, and implementations will need to prune the array before using it in any numerical operations.

Summary

Public constructors
`XECPrivateKeySpec(params: AlgorithmParameterSpec!, scalar: ByteArray!)` Construct a private key spec using the supplied parameters and encoded scalar value.

Public methods
open AlgorithmParameterSpec!	`getParams()` Get the algorithm parameters that define the curve and other settings.
open ByteArray!	`getScalar()` Get the scalar value encoded as an unpruned byte array.

Public constructors

XECPrivateKeySpec

Added in API level 33

XECPrivateKeySpec(
    params: AlgorithmParameterSpec!, 
    scalar: ByteArray!)

Construct a private key spec using the supplied parameters and encoded scalar value.

Parameters
`params`	AlgorithmParameterSpec!: the algorithm parameters
`scalar`	ByteArray!: the unpruned encoded scalar value. This array is copied to protect against subsequent modification.

Exceptions
`java.lang.NullPointerException`	if `params` or `scalar` is null.

Public methods

getParams

Added in API level 33

open fun getParams(): AlgorithmParameterSpec!

Get the algorithm parameters that define the curve and other settings.

Return
`AlgorithmParameterSpec!`	the algorithm parameters

getScalar

Added in API level 33

open fun getScalar(): ByteArray!

Get the scalar value encoded as an unpruned byte array. A new copy of the array is returned each time this method is called.

Return
`ByteArray!`	the unpruned encoded scalar value

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Last updated 2025-02-10 UTC.

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