Class Ed448PrivateKeyBuilder

java.lang.Object

zeroecho.core.alg.common.eddsa.AbstractEncodedPrivateKeyBuilder<Ed448PrivateKeySpec>

zeroecho.core.alg.ed448.Ed448PrivateKeyBuilder

All Implemented Interfaces:

PrivateKeyImporter<Ed448PrivateKeySpec>

public final class Ed448PrivateKeyBuilder
extends AbstractEncodedPrivateKeyBuilder<Ed448PrivateKeySpec>

Ed448 Private Key Builder

Concrete builder for importing Ed448 private keys from their PKCS#8-encoded representation.

This class extends AbstractEncodedPrivateKeyBuilder and specifies the Ed448 algorithm. It reconstructs PrivateKey instances from Ed448PrivateKeySpec, which carries the raw encoded form.

Responsibilities

• Provide the canonical JCA key factory algorithm name ("Ed448").
• Extract the PKCS#8-encoded key bytes from Ed448PrivateKeySpec.
• Delegate actual key reconstruction to KeyFactory.

Usage

// Import an Ed448 private key from encoded bytes
Ed448PrivateKeySpec spec = new Ed448PrivateKeySpec(encodedPkcs8Bytes);
PrivateKey key = new Ed448PrivateKeyBuilder().importPrivate(spec);

Thread-safety

Stateless and safe for concurrent use. Each call to PrivateKeyImporter.importPrivate(AlgorithmKeySpec) creates a new KeyFactory.

Since:

1.0

Constructor Summary

Constructors

Constructor	Description
Ed448PrivateKeyBuilder()	Creates a stateless Ed448 private-key importer.

Method Summary

Modifier and Type	Method	Description
protected byte[]	encodedPkcs8(Ed448PrivateKeySpec spec)	Returns the PKCS#8-encoded private key bytes from the given specification.
protected String	jcaKeyFactoryAlg()	Returns the canonical JCA key factory algorithm name for Ed448.

Methods inherited from class AbstractEncodedPrivateKeyBuilder

importPrivate

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Ed448PrivateKeyBuilder

public Ed448PrivateKeyBuilder()

Creates a stateless Ed448 private-key importer.

Method Details

jcaKeyFactoryAlg

protected String jcaKeyFactoryAlg()

Returns the canonical JCA key factory algorithm name for Ed448.

Specified by:

jcaKeyFactoryAlg in class AbstractEncodedPrivateKeyBuilder<Ed448PrivateKeySpec>

Returns:

the string "Ed448"

encodedPkcs8

protected byte[] encodedPkcs8(Ed448PrivateKeySpec spec)

Returns the PKCS#8-encoded private key bytes from the given specification.

Specified by:

encodedPkcs8 in class AbstractEncodedPrivateKeyBuilder<Ed448PrivateKeySpec>

Parameters:

spec - the Ed448PrivateKeySpec holding encoded private key data

Returns:

raw PKCS#8-encoded private key bytes