Class Curve25519

Elliptic Curve methods used for Diffie Hellman key exchange.

Inheritance

System.Object

Curve25519

Namespace: SuperNet.Netcode.Crypto

Assembly: cs.temp.dll.dll

Syntax

public static class Curve25519

Fields

KeySize

Key size in bytes.

Declaration

public const int KeySize = 32

Field Value

Type	Description
System.Int32

Methods

ClampPrivateKey(Byte[])

Private key clamping.

Declaration

public static byte[] ClampPrivateKey(byte[] rawKey)

Parameters

Type	Name	Description
System.Byte[]	rawKey	[in] Random 32 bytes

Returns

Type	Description
System.Byte[]	Clamped private key.

ClampPrivateKeyInline(Byte[])

Private key clamping (inline, for performance).

Declaration

public static void ClampPrivateKeyInline(byte[] key)

Parameters

Type	Name	Description
System.Byte[]	key	[out] Random 32 bytes.

CreateRandomPrivateKey()

Create a random clamped private key.

Declaration

public static byte[] CreateRandomPrivateKey()

Returns

Type	Description
System.Byte[]	Random 32 bytes that are clamped to a suitable private key.

GetPublicKey(Byte[])

Generate the public key out of the clamped private key.

Declaration

public static byte[] GetPublicKey(byte[] privateKey)

Parameters

Type	Name	Description
System.Byte[]	privateKey	[in] Private key (must be clamped).

Returns

Type	Description
System.Byte[]	Public key.

GetPublicKeyInline(Byte[], Byte[])

Generate the public key out of the clamped private key (inline, for performance).

Declaration

public static void GetPublicKeyInline(byte[] privateKey, byte[] publicKey)

Parameters

Type	Name	Description
System.Byte[]	privateKey	[in] Private key (must be clamped).
System.Byte[]	publicKey	[out] Public key.

GetSharedSecret(Byte[], Byte[])

Key agreement.

Declaration

public static byte[] GetSharedSecret(byte[] privateKey, byte[] peerPublicKey)

Parameters

Type	Name	Description
System.Byte[]	privateKey	[in] Your private key for key agreement.
System.Byte[]	peerPublicKey	[in] Peer's public key.

Returns

Type	Description
System.Byte[]	Shared secret (needs hashing before use).

GetSharedSecretInline(Byte[], Byte[], Byte[])

Key agreement.

Declaration

public static void GetSharedSecretInline(byte[] privateKey, byte[] peerPublicKey, byte[] sharedSecret)

Parameters

Type	Name	Description
System.Byte[]	privateKey	[in] Your private key for key agreement.
System.Byte[]	peerPublicKey	[in] Peer's public key.
System.Byte[]	sharedSecret	[out] Shared secret (needs hashing before use).

GetSigningKey(Byte[])

Generate signing key out of the clamped private key.

Declaration

public static byte[] GetSigningKey(byte[] privateKey)

Parameters

Type	Name	Description
System.Byte[]	privateKey	[in] Private key (must be clamped).

Returns

Type	Description
System.Byte[]	Signing key.

KeyGenInline(Byte[], Byte[], Byte[])

Generate key-pair (inline, for performance).

Declaration

public static void KeyGenInline(byte[] publicKey, byte[] signingKey, byte[] privateKey)

Parameters

Type	Name	Description
System.Byte[]	publicKey	[out] Public key.
System.Byte[]	signingKey	[out] Signing key (ignored if NULL).
System.Byte[]	privateKey	[out] Private key.

Remarks

WARNING: if signingKey is not NULL, this function has data-dependent timing.