// const element_length: usize; // in unstable, or u8
//type ElementBytes : Index<usize, Output=u8>+IndexMut<usize>; // later
type TranscriptHash;
+ fn name() -> &'static str;
fn const_m() -> Self::Element;
fn const_n() -> Self::Element;
fn const_s() -> Self::Element;
//type ScalarBytes
type TranscriptHash = Sha256;
+ fn name() -> &'static str {
+ "Ed25519"
+ }
+
fn const_m() -> c2_Element {
// python -c "import binascii, spake2; b=binascii.hexlify(spake2.ParamsEd25519.M.to_bytes()); print(', '.join(['0x'+b[i:i+2] for i in range(0,len(b),2)]))"
// 15cfd18e385952982b6a8f8c7854963b58e34388c8e6dae891db756481a02312
impl<G: Group> fmt::Debug for SPAKE2<G> {
fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
fmt.debug_struct("SPAKE2")
+ .field("group", &G::name())
.field("side", &self.side)
.field("idA", &maybe_utf8(&self.id_a))
.field("idB", &maybe_utf8(&self.id_b))
&Identity::new(b"idB"),
);
println!("s1: {:?}", s1);
+ assert_eq!(
+ format!("{:?}", s1),
+ "SPAKE2 { group: \"Ed25519\", side: A, idA: \"(s=idA)\", idB: \"(s=idB)\", idS: \"(s=)\" }"
+ );
+
let (s2, _msg1) = SPAKE2::<Ed25519Group>::start_symmetric(
&Password::new(b"password"),
&Identity::new(b"idS"),
);
println!("s2: {:?}", s2);
+ assert_eq!(format!("{:?}", s2),
+ "SPAKE2 { group: \"Ed25519\", side: Symmetric, idA: \"(s=)\", idB: \"(s=)\", idS: \"(s=idS)\" }");
}