Class Ed25519.ExpandedKey

java.lang.Object

org.bouncycastle.math.ec.rfc8032.Ed25519.ExpandedKey

Enclosing class:

Ed25519

public static class Ed25519.ExpandedKey
extends Object

Methods that work with expanded format for private keys (xk/xkOff) i.e. SHA-512(seed).

Field Summary

Fields

Modifier and Type	Field	Description
static final int	EXPANDED_KEY_SIZE

Constructor Summary

Constructors

Constructor	Description
ExpandedKey()

Method Summary

Modifier and Type	Method	Description
static void	expandPrivateKey(byte[] sk, int skOff, byte[] xk, int xkOff)
static void	generatePrivateKey(SecureRandom random, byte[] xk, int xkOff)
static Ed25519.PublicPoint	generatePublicKey(byte[] xk, int xkOff)
static void	generatePublicKey(byte[] xk, int xkOff, byte[] pk, int pkOff)
static void	prune(byte[] xk, int xkOff)
static void	sign(byte[] xk, int xkOff, byte[] pk, int pkOff, byte[] m, int mOff, int mLen, byte[] sig, int sigOff)
static void	sign(byte[] xk, int xkOff, byte[] m, int mOff, int mLen, byte[] sig, int sigOff)

Methods inherited from class Object

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

Field Details

EXPANDED_KEY_SIZE

public static final int EXPANDED_KEY_SIZE

See Also:

• Constant Field Values

Constructor Details

ExpandedKey

public ExpandedKey()

Method Details

expandPrivateKey

public static void expandPrivateKey(byte[] sk,
 int skOff,
 byte[] xk,
 int xkOff)

generatePrivateKey

public static void generatePrivateKey(SecureRandom random,
 byte[] xk,
 int xkOff)

generatePublicKey

public static void generatePublicKey(byte[] xk,
 int xkOff,
 byte[] pk,
 int pkOff)

generatePublicKey

public static Ed25519.PublicPoint generatePublicKey(byte[] xk,
 int xkOff)

prune

public static void prune(byte[] xk,
 int xkOff)

sign

public static void sign(byte[] xk,
 int xkOff,
 byte[] m,
 int mOff,
 int mLen,
 byte[] sig,
 int sigOff)

sign

public static void sign(byte[] xk,
 int xkOff,
 byte[] pk,
 int pkOff,
 byte[] m,
 int mOff,
 int mLen,
 byte[] sig,
 int sigOff)