inital commit, which is clearly not initial

Signed-off-by: Uncle Stretch <uncle.stretch@ghostchain.io>

pallets/claims/src/secp_utils.rs

@@ -0,0 +1,37 @@
+#![cfg(any(test, feature = "runtime-benchmarks"))]
+
+use crate::{keccak_256, Config, EcdsaSignature, EthereumAddress};
+
+pub fn public(secret: &libsecp256k1::SecretKey) -> libsecp256k1::PublicKey {
+    libsecp256k1::PublicKey::from_secret_key(secret)
+}
+
+pub fn eth(secret: &libsecp256k1::SecretKey) -> EthereumAddress {
+    let mut res = EthereumAddress::default();
+    res.0.copy_from_slice(&keccak_256(&public(secret).serialize()[1..65])[12..]);
+    res
+}
+
+#[cfg(test)]
+pub fn into_account_id<T: Config<I>, I: 'static>(address: EthereumAddress) -> T::AccountId {
+    super::Pallet::<T, I>::into_account_id(address).unwrap()
+}
+
+pub fn sig<T: Config<I>, I: 'static>(
+    secret: &libsecp256k1::SecretKey, 
+    what: &[u8],
+) -> EcdsaSignature {
+    let msg = keccak_256(&super::Pallet::<T, I>::ethereum_signable_message(
+            &crate::to_ascii_hex(what)[..],
+    ));
+
+    let (sig, recovery_id) = libsecp256k1::sign(
+        &libsecp256k1::Message::parse(&msg),
+        secret,
+    );
+
+    let mut r = [0u8; 65];
+    r[0..64].copy_from_slice(&sig.serialize()[..]);
+    r[64] = recovery_id.serialize();
+    EcdsaSignature(r)
+}