Added RuntimePublic for ecdsa public key. (#6029)

* add generate ecdsa, etc to keystore

* impl ecdsa needed traits

* add ecdsa to sr_io

* add ecdsa to application-crypto

* add ecdsa to test-utils

* add ecdsa debug derive

* fix ecdsa public

substrate/primitives/application-crypto/src/ecdsa.rs

@@ -0,0 +1,61 @@
+// Copyright 2019-2020 Parity Technologies (UK) Ltd.
+// This file is part of Substrate.
+
+// Substrate is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Substrate is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Substrate.  If not, see <http://www.gnu.org/licenses/>.
+
+//! Ecdsa crypto types.
+
+use crate::{RuntimePublic, KeyTypeId};
+
+use sp_std::vec::Vec;
+
+pub use sp_core::ecdsa::*;
+
+mod app {
+	use sp_core::testing::ECDSA;
+
+	crate::app_crypto!(super, ECDSA);
+
+	impl crate::traits::BoundToRuntimeAppPublic for Public {
+		type Public = Self;
+	}
+}
+
+pub use app::{Public as AppPublic, Signature as AppSignature};
+#[cfg(feature = "full_crypto")]
+pub use app::Pair as AppPair;
+
+impl RuntimePublic for Public {
+	type Signature = Signature;
+
+	fn all(key_type: KeyTypeId) -> crate::Vec<Self> {
+		sp_io::crypto::ecdsa_public_keys(key_type)
+	}
+
+	fn generate_pair(key_type: KeyTypeId, seed: Option<Vec<u8>>) -> Self {
+		sp_io::crypto::ecdsa_generate(key_type, seed)
+	}
+
+	fn sign<M: AsRef<[u8]>>(&self, key_type: KeyTypeId, msg: &M) -> Option<Self::Signature> {
+		sp_io::crypto::ecdsa_sign(key_type, self, msg.as_ref())
+	}
+
+	fn verify<M: AsRef<[u8]>>(&self, msg: &M, signature: &Self::Signature) -> bool {
+		sp_io::crypto::ecdsa_verify(&signature, msg.as_ref(), self)
+	}
+
+	fn to_raw_vec(&self) -> Vec<u8> {
+		sp_core::crypto::Public::to_raw_vec(self)
+	}
+}