Package org.bouncycastle.math.ec.rfc8032

Class Ed448

java.lang.Object

org.bouncycastle.math.ec.rfc8032.Ed448

public abstract class Ed448
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	Ed448.Algorithm

Field Summary

Fields

Modifier and Type	Field	Description
static final int	PREHASH_SIZE
static final int	PUBLIC_KEY_SIZE
static final int	SECRET_KEY_SIZE
static final int	SIGNATURE_SIZE

Constructor Summary

Constructors

Constructor	Description
Ed448()

Method Summary

Modifier and Type	Method	Description
org.bouncycastle.crypto.internal.Xof	createPrehash()
protected abstract org.bouncycastle.crypto.internal.Xof	createXof()
static void	generatePrivateKey(SecureRandom random, byte[] k)
void	generatePublicKey(byte[] sk, int skOff, byte[] pk, int pkOff)
static void	precompute()
static void	scalarMultBaseXY(X448.Friend friend, byte[] k, int kOff, int[] x, int[] y)	NOTE: Only for use by X448
void	sign(byte[] sk, int skOff, byte[] ctx, byte[] m, int mOff, int mLen, byte[] sig, int sigOff)
void	sign(byte[] sk, int skOff, byte[] pk, int pkOff, byte[] ctx, byte[] m, int mOff, int mLen, byte[] sig, int sigOff)
void	signPrehash(byte[] sk, int skOff, byte[] ctx, byte[] ph, int phOff, byte[] sig, int sigOff)
void	signPrehash(byte[] sk, int skOff, byte[] pk, int pkOff, byte[] ctx, byte[] ph, int phOff, byte[] sig, int sigOff)
void	signPrehash(byte[] sk, int skOff, byte[] pk, int pkOff, byte[] ctx, org.bouncycastle.crypto.internal.Xof ph, byte[] sig, int sigOff)
void	signPrehash(byte[] sk, int skOff, byte[] ctx, org.bouncycastle.crypto.internal.Xof ph, byte[] sig, int sigOff)
static boolean	validatePublicKeyFull(byte[] pk, int pkOff)
static boolean	validatePublicKeyPartial(byte[] pk, int pkOff)
boolean	verify(byte[] sig, int sigOff, byte[] pk, int pkOff, byte[] ctx, byte[] m, int mOff, int mLen)
boolean	verifyPrehash(byte[] sig, int sigOff, byte[] pk, int pkOff, byte[] ctx, byte[] ph, int phOff)
boolean	verifyPrehash(byte[] sig, int sigOff, byte[] pk, int pkOff, byte[] ctx, org.bouncycastle.crypto.internal.Xof ph)

Methods inherited from class java.lang.Object

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

Field Details

PREHASH_SIZE

public static final int PREHASH_SIZE

See Also:

• Constant Field Values

PUBLIC_KEY_SIZE

public static final int PUBLIC_KEY_SIZE

See Also:

• Constant Field Values

SECRET_KEY_SIZE

public static final int SECRET_KEY_SIZE

See Also:

• Constant Field Values

SIGNATURE_SIZE

public static final int SIGNATURE_SIZE

See Also:

• Constant Field Values

Constructor Details

Ed448

public Ed448()

Method Details

createPrehash

public org.bouncycastle.crypto.internal.Xof createPrehash()

generatePrivateKey

public static void generatePrivateKey(SecureRandom random,
 byte[] k)

generatePublicKey

public void generatePublicKey(byte[] sk,
 int skOff,
 byte[] pk,
 int pkOff)

precompute

public static void precompute()

scalarMultBaseXY

public static void scalarMultBaseXY(X448.Friend friend,
 byte[] k,
 int kOff,
 int[] x,
 int[] y)

NOTE: Only for use by X448

sign

public void sign(byte[] sk,
 int skOff,
 byte[] ctx,
 byte[] m,
 int mOff,
 int mLen,
 byte[] sig,
 int sigOff)

sign

public void sign(byte[] sk,
 int skOff,
 byte[] pk,
 int pkOff,
 byte[] ctx,
 byte[] m,
 int mOff,
 int mLen,
 byte[] sig,
 int sigOff)

signPrehash

public void signPrehash(byte[] sk,
 int skOff,
 byte[] ctx,
 byte[] ph,
 int phOff,
 byte[] sig,
 int sigOff)

signPrehash

public void signPrehash(byte[] sk,
 int skOff,
 byte[] pk,
 int pkOff,
 byte[] ctx,
 byte[] ph,
 int phOff,
 byte[] sig,
 int sigOff)

signPrehash

public void signPrehash(byte[] sk,
 int skOff,
 byte[] ctx,
 org.bouncycastle.crypto.internal.Xof ph,
 byte[] sig,
 int sigOff)

signPrehash

public void signPrehash(byte[] sk,
 int skOff,
 byte[] pk,
 int pkOff,
 byte[] ctx,
 org.bouncycastle.crypto.internal.Xof ph,
 byte[] sig,
 int sigOff)

validatePublicKeyFull

public static boolean validatePublicKeyFull(byte[] pk,
 int pkOff)

validatePublicKeyPartial

public static boolean validatePublicKeyPartial(byte[] pk,
 int pkOff)

verify

public boolean verify(byte[] sig,
 int sigOff,
 byte[] pk,
 int pkOff,
 byte[] ctx,
 byte[] m,
 int mOff,
 int mLen)

verifyPrehash

public boolean verifyPrehash(byte[] sig,
 int sigOff,
 byte[] pk,
 int pkOff,
 byte[] ctx,
 byte[] ph,
 int phOff)

verifyPrehash

public boolean verifyPrehash(byte[] sig,
 int sigOff,
 byte[] pk,
 int pkOff,
 byte[] ctx,
 org.bouncycastle.crypto.internal.Xof ph)

createXof

protected abstract org.bouncycastle.crypto.internal.Xof createXof()