curve25519.PointSize
// PointSize is the size of the point input to X25519.
const PointSize = 32
curve25519.ScalarSize
// ScalarSize is the size of the scalar input to X25519.
const ScalarSize = 32
curve25519.Basepoint
// Basepoint is the canonical Curve25519 generator.
var Basepoint []byte
curve25519.ScalarBaseMult
// ScalarBaseMult sets dst to the product scalar * base where base is the
// standard generator.
//
// It is recommended to use the X25519 function with Basepoint instead, as
// copying into fixed size arrays can lead to unexpected bugs.
func ScalarBaseMult(dst *[32]byte, scalar *[32]byte)
curve25519.ScalarMult
// ScalarMult sets dst to the product scalar * point.
//
// Deprecated: when provided a low-order point, ScalarMult will set dst to all
// zeroes, irrespective of the scalar. Instead, use the X25519 function, which
// will return an error.
func ScalarMult(dst *[32]byte, scalar *[32]byte, point *[32]byte)
curve25519.X25519
// X25519 returns the result of the scalar multiplication (scalar * point),
// according to RFC 7748, Section 5. scalar, point and the return value are
// slices of 32 bytes.
//
// scalar can be generated at random, for example with crypto/rand. point should
// be either Basepoint or the output of another X25519 call.
//
// If point is Basepoint (but not if it's a different slice with the same
// contents) a precomputed implementation might be used for performance.
func X25519(scalar []byte, point []byte) ([]byte, error)