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

java.lang.Object
  org.bouncycastle.math.ec.rfc8032.Ed25519.ExpandedKey

Enclosing class:

Ed25519

public static class Ed25519.ExpandedKey

extends java.lang.Object

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

Field Summary

static int

EXPANDED_KEY_SIZE

Constructor Summary

Ed25519.ExpandedKey()

Method Summary

static void	expandPrivateKey(byte[] sk, int skOff, byte[] xk, int xkOff)
static void	generatePrivateKey(java.security.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 java.lang.Object

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

Field Detail

EXPANDED_KEY_SIZE

public static final int EXPANDED_KEY_SIZE

See Also:

Constant Field Values

Constructor Detail

Ed25519.ExpandedKey

public Ed25519.ExpandedKey()

Method Detail

expandPrivateKey

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

generatePrivateKey

public static void generatePrivateKey(java.security.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)