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Index ¶
Constants ¶
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Variables ¶
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Functions ¶
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Types ¶
type Receiver ¶
type Receiver struct {
// contains filtered or unexported fields
}
Receiver is the party that plays the role of Sender in the multiplication protocol (protocol 5 of the paper).
func NewReceiver ¶
func NewReceiver(seedOtResults *simplest.SenderOutput, curve *curves.Curve, uniqueSessionId [simplest.DigestSize]byte) (*Receiver, error)
NewReceiver generates a `MultiplyReceiver` instance, ready to take part in multiplication as the "receiver". You must supply it the _output_ of a seed OT, from the sender's point of view, as well as params and a unique ID. That is, the mult sender must run the base OT as the sender; note the (apparent) reversal of roles.
func (*Receiver) Init ¶
func (receiver *Receiver) Init(beta curves.Scalar) *Round1Output
init Protocol 5., Multiplication, 3). Bob (receiver) encodes beta and initiates the cOT extension
func (*Receiver) Multiply ¶
func (receiver *Receiver) Multiply(round2Output *Round2Output) curves.Scalar
multiply Protocol 5., Multiplication, 3) and 6). Bob finalizes the cOT extension. using that and Alice's multiplication message, Bob completes the multiplication protocol, including checks. At the end, Bob's values tB_j are populated.
type Round1Output ¶
type Round1Output = kos.Round1Output
type Round2Output ¶
type Round2Output struct {
COTRound2Output *kos.Round2Output
R [kos.L]curves.Scalar
U curves.Scalar
}
Round2Output is the output of the second round of the multiplication protocol.
type Sender ¶
type Sender struct {
// contains filtered or unexported fields
}
Sender is the party that plays the role of Sender in the multiplication protocol (protocol 5 of the paper).
func NewSender ¶
func NewSender(seedOtResults *simplest.ReceiverOutput, curve *curves.Curve, uniqueSessionId [simplest.DigestSize]byte) (*Sender, error)
NewSender generates a `MultiplySender` instance, ready to take part in multiplication as the "sender". You must supply it the _output_ of a seed OT, from the receiver's point of view, as well as params and a unique ID. That is, the mult sender must run the base OT as the receiver; note the (apparent) reversal of roles.
func (*Sender) Update ¶
func (sender *Sender) Update(alpha curves.Scalar, round1Output *kos.Round1Output) (curves.Scalar, *Round2Output)
update Protocol 5., steps 3) 5), 7). Alice _responds_ to Bob's initial cOT message, using alpha as input. Doesn't actually send the message yet, only stashes it and moves onto the next steps of the multiplication protocol specifically, Alice can then do step 5) (compute the outputs of the multiplication protocol), also stashes this. Finishes by taking care of 7), after that, Alice is totally done with multiplication and has stashed the outputs.
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