ECSecretBCPGKey (Bouncy Castle Cryptography 1.79 API Specification)

java.lang.Object
- org.bouncycastle.bcpg.BCPGObject
- - org.bouncycastle.bcpg.ECSecretBCPGKey

All Implemented Interfaces:

BCPGKey, org.bouncycastle.util.Encodable
```
public class ECSecretBCPGKey
extends BCPGObject
implements BCPGKey
```
Base class for an EC Secret Key. This type is for use with PublicKeyAlgorithmTags.ECDH or PublicKeyAlgorithmTags.ECDSA. The specific curve is identified by providing an OID. Regarding X25519, X448, consider the following: ECDH keys using curve448 are unspecified. ECDH secret keys using curve25519 use big-endian MPI encoding, contrary to X25519SecretBCPGKey which uses native encoding. Modern implementations use dedicated key types X25519SecretBCPGKey, X448SecretBCPGKey along with dedicated algorithm tags PublicKeyAlgorithmTags.X25519, PublicKeyAlgorithmTags.X448. If you want to be compatible with legacy applications however, you should use this class instead. Note though, that for v6 keys, X25519SecretBCPGKey or X448SecretBCPGKey MUST be used for X25519, X448.

See Also:

OpenPGP - Algorithm-Specific Parts for ECDH Keys, OpenPGP - Algorithm-Specific Parts for ECDSA Keys, OpenPGP - Curve25519Legacy ECDH Secret Key Material (deprecated)

Constructor Summary

Constructors
Constructor Description

ECSecretBCPGKey(java.math.BigInteger x)

ECSecretBCPGKey(BCPGInputStream in)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`encode(BCPGOutputStream out)`
`byte[]`	`getEncoded()`	return the standard PGP encoding of the key.
`java.lang.String`	`getFormat()`	return "PGP"
`java.math.BigInteger`	`getX()`

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

- Constructor Detail
  - ECSecretBCPGKey
```
public ECSecretBCPGKey(BCPGInputStream in)
                throws java.io.IOException
```
    Parameters:
    
    in -
    
    Throws:
    
    java.io.IOException
  - ECSecretBCPGKey
```
public ECSecretBCPGKey(java.math.BigInteger x)
```
    Parameters:
    
    x -
- Method Detail
  - getFormat
```
public java.lang.String getFormat()
```
    return "PGP"
    
    Specified by:
    
    getFormat in interface BCPGKey
    
    Returns:
    
    "RAW" or "PGP"
    
    See Also:
    
    BCPGKey.getFormat()
  - getEncoded
```
public byte[] getEncoded()
```
    return the standard PGP encoding of the key.
    
    Specified by:
    
    getEncoded in interface BCPGKey
    
    Specified by:
    
    getEncoded in interface org.bouncycastle.util.Encodable
    
    Overrides:
    
    getEncoded in class BCPGObject
    
    Returns:
    
    byte[]
    
    See Also:
    
    BCPGKey.getEncoded()
  - encode
```
public void encode(BCPGOutputStream out)
            throws java.io.IOException
```
    Specified by:
    
    encode in class BCPGObject
    
    Throws:
    
    java.io.IOException
  - getX
```
public java.math.BigInteger getX()
```
    Returns:
    
    x