protected override BitString ComputeSharedSecret(ISecretKeyingMaterial otherPartyKeyingMaterial)
{
// Party U uses both its static and ephemeral keys, and Party V's static public key
if (SchemeParameters.KeyAgreementRole == KeyAgreementRole.InitiatorPartyU)
{
return(_mqv.GenerateSharedSecretZ(
(EccDomainParameters)ThisPartyKeyingMaterial.DomainParameters,
(EccKeyPair)ThisPartyKeyingMaterial.StaticKeyPair,
(EccKeyPair)otherPartyKeyingMaterial.StaticKeyPair,
(EccKeyPair)ThisPartyKeyingMaterial.EphemeralKeyPair,
(EccKeyPair)ThisPartyKeyingMaterial.EphemeralKeyPair,
(EccKeyPair)otherPartyKeyingMaterial.StaticKeyPair
).SharedSecretZ);
}
// Party V uses its static key, and party U's static and ephemeral keys
return(_mqv.GenerateSharedSecretZ(
(EccDomainParameters)ThisPartyKeyingMaterial.DomainParameters,
(EccKeyPair)ThisPartyKeyingMaterial.StaticKeyPair,
(EccKeyPair)otherPartyKeyingMaterial.StaticKeyPair,
(EccKeyPair)ThisPartyKeyingMaterial.StaticKeyPair,
(EccKeyPair)ThisPartyKeyingMaterial.StaticKeyPair,
(EccKeyPair)otherPartyKeyingMaterial.EphemeralKeyPair
).SharedSecretZ);
}
protected override BitString ComputeSharedSecret(OtherPartySharedInformation <FfcDomainParameters, FfcKeyPair> otherPartyInformation)
{
// Party U uses both its static and ephemeral keys, and Party V's static public key
if (SchemeParameters.KeyAgreementRole == KeyAgreementRole.InitiatorPartyU)
{
return(_mqv.GenerateSharedSecretZ(
DomainParameters,
StaticKeyPair,
otherPartyInformation.StaticPublicKey,
EphemeralKeyPair,
EphemeralKeyPair,
otherPartyInformation.StaticPublicKey
).SharedSecretZ);
}
// Party V uses its static key, and party U's static and ephemeral keys
return(_mqv.GenerateSharedSecretZ(
DomainParameters,
StaticKeyPair,
otherPartyInformation.StaticPublicKey,
StaticKeyPair,
StaticKeyPair,
otherPartyInformation.EphemeralPublicKey
).SharedSecretZ);
}
protected override BitString ComputeSharedSecret(OtherPartySharedInformation <FfcDomainParameters, FfcKeyPair> otherPartyInformation)
{
return(_mqv.GenerateSharedSecretZ(
DomainParameters,
StaticKeyPair,
otherPartyInformation.StaticPublicKey,
EphemeralKeyPair,
EphemeralKeyPair,
otherPartyInformation.EphemeralPublicKey
).SharedSecretZ);
}
protected override BitString ComputeSharedSecret(ISecretKeyingMaterial otherPartyKeyingMaterial)
{
return(_mqv.GenerateSharedSecretZ(
(EccDomainParameters)ThisPartyKeyingMaterial.DomainParameters,
(EccKeyPair)ThisPartyKeyingMaterial.StaticKeyPair,
(EccKeyPair)otherPartyKeyingMaterial.StaticKeyPair,
(EccKeyPair)ThisPartyKeyingMaterial.EphemeralKeyPair,
(EccKeyPair)ThisPartyKeyingMaterial.EphemeralKeyPair,
(EccKeyPair)otherPartyKeyingMaterial.EphemeralKeyPair
).SharedSecretZ);
}
