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Add SECP256k1/ECDSA support for transaction signing (#3861)

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* Add SECP256k1/ECDSA support for transaction signing.

* Refactoring and fixes

* Fix for contracts

* Avoid breaking runtime host function

* Build fixes, make subkey work more generaically.

* Fix tests

* Dedpulicate a bit of code, remove unneeded code, docs

* Bump runtime version

* Fix a test and clean up some code.

* Derivation can derive seed.

* Whitespace

* Bump runtime again.

* Update core/primitives/src/crypto.rs

Co-Authored-By: Kian Paimani <5588131+kianenigma@users.noreply.github.com>

* Update core/primitives/src/ecdsa.rs

Co-Authored-By: Kian Paimani <5588131+kianenigma@users.noreply.github.com>

* Fix AppVerify
This commit is contained in:
Gavin Wood
2019-10-24 10:59:09 +02:00
committed by GitHub
parent 62a238a81b
commit d97775542a
30 changed files with 1286 additions and 419 deletions
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substrate/core/sr-io/src/lib.rs
+7 -2
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@@ -220,15 +220,20 @@ export_api! {
/// Verify and recover a SECP256k1 ECDSA signature.
/// - `sig` is passed in RSV format. V should be either 0/1 or 27/28.
/// - returns `Err` if the signature is bad, otherwise the 64-byte pubkey (doesn't include the 0x04 prefix).
/// - returns `Err` if the signature is bad, otherwise the 64-byte raw pubkey (doesn't include the 0x04 prefix).
fn secp256k1_ecdsa_recover(sig: &[u8; 65], msg: &[u8; 32]) -> Result<[u8; 64], EcdsaVerifyError>;
/// Verify and recover a SECP256k1 ECDSA signature.
/// - `sig` is passed in RSV format. V should be either 0/1 or 27/28.
/// - returns `Err` if the signature is bad, otherwise the 33-byte compressed pubkey.
fn secp256k1_ecdsa_recover_compressed(sig: &[u8; 65], msg: &[u8; 32]) -> Result<[u8; 33], EcdsaVerifyError>;
}
}
export_api! {
pub(crate) trait HashingApi {
/// Conduct a 256-bit Keccak hash.
fn keccak_256(data: &[u8]) -> [u8; 32] ;
fn keccak_256(data: &[u8]) -> [u8; 32];
/// Conduct a 128-bit Blake2 hash.
fn blake2_128(data: &[u8]) -> [u8; 16];