Class Ed25519PublicKeyDecoder

java.lang.Object

org.apache.sshd.common.util.logging.AbstractLoggingBean

org.apache.sshd.common.config.keys.impl.AbstractIdentityResourceLoader

org.apache.sshd.common.config.keys.impl.AbstractKeyEntryResolver

org.apache.sshd.common.config.keys.impl.AbstractPublicKeyEntryDecoder

org.apache.sshd.common.util.security.eddsa.generic.Ed25519PublicKeyDecoder

All Implemented Interfaces:

KeyEntryResolver, KeyTypeNamesSupport, PublicKeyEntryDecoder, PublicKeyEntryResolver, PublicKeyRawDataDecoder

public final class Ed25519PublicKeyDecoder
extends AbstractPublicKeyEntryDecoder

An AbstractPublicKeyEntryDecoder for ed25519 keys.

Author:

Apache MINA SSHD Project

Field Summary

Fields

Modifier and Type	Field	Description
static final Ed25519PublicKeyDecoder	INSTANCE
static final int	MAX_ALLOWED_SEED_LEN

Fields inherited from class AbstractLoggingBean

log

Fields inherited from interface KeyEntryResolver

MAX_BIGINT_OCTETS_COUNT

Fields inherited from interface PublicKeyEntryResolver

FAILING, IGNORING, UNSUPPORTED

Method Summary

Modifier and Type	Method	Description
PublicKey	decodePublicKey(SessionContext session, String keyType, InputStream keyData, Map<String,String> headers)
String	encodePublicKey(OutputStream s, PublicKey key)	Encodes the PublicKey using the OpenSSH format - same one used by the decodePublicKey method(s)
KeyPair	generateKeyPair(int keySize)
KeyFactory	getKeyFactoryInstance()
KeyPairGenerator	getKeyPairGenerator()

Methods inherited from class AbstractPublicKeyEntryDecoder

parseBooleanHeader

Methods inherited from class AbstractKeyEntryResolver

generatePrivateKey, generatePublicKey, toString

Methods inherited from class AbstractIdentityResourceLoader

getSupportedKeyTypes

Methods inherited from class AbstractLoggingBean

debug, debug, debug, debug, debug, error, error, error, error, error, getSimplifiedLogger, info, info, warn, warn, warn, warn, warn, warn, warn, warn

Methods inherited from class Object

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

Methods inherited from interface KeyTypeNamesSupport

getSupportedKeyTypes

Methods inherited from interface PublicKeyEntryDecoder

decodePublicKeyByType, resolve

Methods inherited from interface PublicKeyRawDataDecoder

decodePublicKey, decodePublicKey

Field Details

MAX_ALLOWED_SEED_LEN

public static final int MAX_ALLOWED_SEED_LEN

See Also:

• Constant Field Values

INSTANCE

public static final Ed25519PublicKeyDecoder INSTANCE

Method Details

getKeyPairGenerator

public KeyPairGenerator getKeyPairGenerator()
                                     throws GeneralSecurityException

Returns:

A KeyPairGenerator suitable for this decoder

Throws:

GeneralSecurityException - If failed to create the generator

generateKeyPair

public KeyPair generateKeyPair(int keySize)
                        throws GeneralSecurityException

Parameters:

keySize - Key size in bits

Returns:

A KeyPair with the specified key size

Throws:

GeneralSecurityException - if unable to generate the pair

encodePublicKey

public String encodePublicKey(OutputStream s,
 PublicKey key)
                       throws IOException

Description copied from interface: PublicKeyEntryDecoder

Encodes the PublicKey using the OpenSSH format - same one used by the decodePublicKey method(s)

Parameters:

s - The OutputStream to write the data to

key - The PublicKey - may not be null

Returns:

The key type value - one of the KeyTypeNamesSupport.getSupportedKeyTypes()

Throws:

IOException - If failed to generate the encoding

getKeyFactoryInstance

public KeyFactory getKeyFactoryInstance()
                                 throws GeneralSecurityException

Returns:

A KeyFactory suitable for the specific decoder type

Throws:

GeneralSecurityException - If failed to create one

decodePublicKey

public PublicKey decodePublicKey(SessionContext session,
 String keyType,
 InputStream keyData,
 Map<String,String> headers)
                          throws IOException,
GeneralSecurityException

Parameters:

session - The SessionContext for invoking this command - may be null if not invoked within a session context (e.g., offline tool or session unknown).

keyType - The reported / encode key type

keyData - The key data bytes stream positioned after the key type decoding and making sure it is one of the supported types

headers - Any headers that may have been available when data was read

Returns:

The decoded PublicKey

Throws:

IOException - If failed to read from the data stream

GeneralSecurityException - If failed to generate the key