INNER CODE UNIT · Go

ed25519PointToBigInts

schollz/pake · pake.go:105

func ed25519PointToBigInts(pointBytes []byte) (*big.Int, *big.Int) {
	if len(pointBytes) != 32 {
		return big.NewInt(0), big.NewInt(0)
	}
	// Store the entire point in x coordinate, y is always 0
	x := new(big.Int).SetBytes(pointBytes)
	y := big.NewInt(0)
	return x, y
}

// Pake keeps public and private variables by
// only transmitting between parties after marshaling.
//
// This method follows
// https://crypto.stanford.edu/~dabo/cryptobook/BonehShoup_0_4.pdf
// Figure 21/15
// http://www.lothar.com/~warner/MagicWormhole-PyCon2016.pdf
// Slide 11

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