EdDSAUtils

java.lang.Object
- org.apache.sshd.common.util.security.eddsa.generic.EdDSAUtils

```
public final class EdDSAUtils
extends java.lang.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 int`	`ED25519_LENGTH`
`private static byte[]`	`ED25519_X509_PREFIX`
`private static int`	`ED448_LENGTH`
`private static byte[]`	`ED448_X509_PREFIX`

Constructor Summary

Constructors
Modifier Constructor Description

private EdDSAUtils()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static byte[]`	`getBytes(java.security.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 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - 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 Detail
  - EdDSAUtils
```
private EdDSAUtils()
```
- Method Detail
  - startsWith
```
private static boolean startsWith(byte[] data,
                                  byte[] prefix)
```
  - getBytes
```
public static byte[] getBytes(java.security.PublicKey key)
                       throws java.security.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:
    
    java.security.InvalidKeyException - if the key is not an ed25519 or ed448 key, or if it doesn't use X.509 encoding