EdDSAPublicKey (I2P Anonymous Network - Java Documentation

java.lang.Object
- net.i2p.crypto.eddsa.EdDSAPublicKey

All Implemented Interfaces:

Serializable, Key, PublicKey, EdDSAKey
```
public class EdDSAPublicKey
extends Object
implements EdDSAKey, PublicKey
```
An EdDSA public key.
Warning: Public key encoding is is based on the current IETF draft, and is subject to change. See getEncoded().
Ref: https://tools.ietf.org/html/draft-josefsson-pkix-eddsa-04

Since:

0.9.15

Author:

str4d

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor Description

EdDSAPublicKey(X509EncodedKeySpec spec)

EdDSAPublicKey(EdDSAPublicKeySpec spec)

Constructors
Constructor	Description
`EdDSAPublicKey(X509EncodedKeySpec spec)`
`EdDSAPublicKey(EdDSAPublicKeySpec spec)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`equals(Object o)`
`GroupElement`	`getA()`
`byte[]`	`getAbyte()`
`String`	`getAlgorithm()`
`byte[]`	`getEncoded()`	This follows the spec at ref: https://tools.ietf.org/html/draft-josefsson-pkix-eddsa-04 which matches the docs from java.security.spec.X509EncodedKeySpec quote:
`String`	`getFormat()`
`GroupElement`	`getNegativeA()`
`EdDSAParameterSpec`	`getParams()`	return a parameter specification representing the EdDSA domain parameters for the key.
`int`	`hashCode()`

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - EdDSAPublicKey
```
public EdDSAPublicKey(EdDSAPublicKeySpec spec)
```
  - EdDSAPublicKey
```
public EdDSAPublicKey(X509EncodedKeySpec spec)
               throws InvalidKeySpecException
```
    Throws:
    
    InvalidKeySpecException
    
    Since:
    
    0.9.25
- Method Detail
  - getAlgorithm
```
public String getAlgorithm()
```
    Specified by:
    
    getAlgorithm in interface Key
  - getFormat
```
public String getFormat()
```
    Specified by:
    
    getFormat in interface Key
  - getEncoded
```
public byte[] getEncoded()
```
    This follows the spec at ref: https://tools.ietf.org/html/draft-josefsson-pkix-eddsa-04 which matches the docs from java.security.spec.X509EncodedKeySpec quote:
```
 The SubjectPublicKeyInfo syntax is defined in the X.509 standard as follows:
  SubjectPublicKeyInfo ::= SEQUENCE {
    algorithm AlgorithmIdentifier,
    subjectPublicKey BIT STRING }
```
```
  AlgorithmIdentifier ::= SEQUENCE
  {
    algorithm           OBJECT IDENTIFIER,
    parameters          ANY OPTIONAL
  }
```
    Specified by:
    
    getEncoded in interface Key
    
    Returns:
    
    47 bytes for Ed25519, null for other curves
    
    Since:
    
    implemented in 0.9.25
  - getParams
```
public EdDSAParameterSpec getParams()
```
    Description copied from interface: EdDSAKey
    
    return a parameter specification representing the EdDSA domain parameters for the key.
    
    Specified by:
    
    getParams in interface EdDSAKey
  - getA
```
public GroupElement getA()
```
  - getNegativeA
```
public GroupElement getNegativeA()
```
  - getAbyte
```
public byte[] getAbyte()
```
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object
    
    Since:
    
    0.9.25
  - equals
```
public boolean equals(Object o)
```
    Overrides:
    
    equals in class Object
    
    Since:
    
    0.9.25

Class EdDSAPublicKey

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

EdDSAPublicKey

EdDSAPublicKey

Method Detail

getAlgorithm

getFormat

getEncoded

getParams

getA

getNegativeA

getAbyte

hashCode

equals