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Introduce Ristretto signing (#1730)

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* first draft of ristretto crypto module #1685

* adds better comments and code-style

* remove the last evil unwrap

* remove a mistakenly committed lockfile

* add a fresh new lockfile --will probably need a manual merge later

* fix an invalid old test vector

* Wire in ristretto

* Update comment

* Fix use.

* new Signature type api alias to be compatible with substrate

* Add new keyring, fix node executor tests

* Bump version.

* Remove all hashes.

* Update core/primitives/src/sr25519.rs

Co-Authored-By: gavofyork <github@gavwood.com>

* Revert back to Ed25519 (until JS UI is ready)

* Fix test
This commit is contained in:
Gav Wood
2019-02-13 10:10:17 +01:00
committed by GitHub
parent 9e2710246f
commit a61c218cc3
20 changed files with 1474 additions and 250 deletions
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substrate/core/sr-io/without_std.rs
+9
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@@ -89,6 +89,8 @@ extern "C" {
fn ext_keccak_256(data: *const u8, len: u32, out: *mut u8);
/// Note: ext_ed25519_verify returns 0 if the signature is correct, nonzero otherwise.
fn ext_ed25519_verify(msg_data: *const u8, msg_len: u32, sig_data: *const u8, pubkey_data: *const u8) -> u32;
/// Note: ext_sr25519_verify returns 0 if the signature is correct, nonzero otherwise.
fn ext_sr25519_verify(msg_data: *const u8, msg_len: u32, sig_data: *const u8, pubkey_data: *const u8) -> u32;
/// Note: ext_secp256k1_ecdsa_recover returns 0 if the signature is correct, nonzero otherwise.
fn ext_secp256k1_ecdsa_recover(msg_data: *const u8, sig_data: *const u8, pubkey_data: *mut u8) -> u32;
}
@@ -371,6 +373,13 @@ pub fn ed25519_verify<P: AsRef<[u8]>>(sig: &[u8; 64], msg: &[u8], pubkey: P) ->
}
}
/// Verify a sr25519 signature.
pub fn sr25519_verify<P: AsRef<[u8]>>(sig: &[u8; 64], msg: &[u8], pubkey: P) -> bool {
unsafe {
ext_sr25519_verify(msg.as_ptr(), msg.len() as u32, sig.as_ptr(), pubkey.as_ref().as_ptr()) == 0
}
}
/// Verify and recover a SECP256k1 ECDSA signature.
/// - `sig` is passed in RSV format. V should be either 0/1 or 27/28.
/// - returns `None` if the signatue is bad, the 64-byte pubkey (doesn't include the 0x04 prefix).