Class EdDSAUtils

java.lang.Object

org.apache.sshd.common.util.security.eddsa.generic.EdDSAUtils

public final class EdDSAUtils
extends Object

Utilities to extract the raw key bytes from ed25519 or ed448 public keys, in a manner that is independent of the actual concrete key implementation classes.

Field Summary

Fields

Modifier and Type	Field	Description
private static final int	ED25519_LENGTH
private static final byte[]	ED25519_X509_PREFIX
private static final int	ED448_LENGTH
private static final byte[]	ED448_X509_PREFIX

Constructor Summary

Constructors

Modifier	Constructor	Description
private	EdDSAUtils()

Method Summary

Modifier and Type	Method	Description
static byte[]	getBytes(PublicKey key)	Retrieves the raw key bytes from an ed25519 or ed448 PublicKey.
private static boolean	startsWith(byte[] data, byte[] prefix)

Methods inherited from class Object

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

Field Details

ED25519_LENGTH

private static final int ED25519_LENGTH

See Also:

• Constant Field Values

ED448_LENGTH

private static final int ED448_LENGTH

See Also:

• Constant Field Values

ED25519_X509_PREFIX

private static final byte[] ED25519_X509_PREFIX

ED448_X509_PREFIX

private static final byte[] ED448_X509_PREFIX

Constructor Details

EdDSAUtils

private EdDSAUtils()

Method Details

startsWith

private static boolean startsWith(byte[] data,
 byte[] prefix)

getBytes

public static byte[] getBytes(PublicKey key)
                       throws InvalidKeyException

Retrieves the raw key bytes from an ed25519 or ed448 PublicKey.

Parameters:

key - PublicKey to get the bytes of

Returns:

the raw key bytes

Throws:

InvalidKeyException - if the key is not an ed25519 or ed448 key, or if it doesn't use X.509 encoding