Update README.md / CHANGELOG.md

Author: maurolacy

CHANGELOG.md

@@ -8,8 +8,11 @@ and this project adheres to
 
 ### Added
 
-- cosmwasm-crypto: Add new crypto-related crate. Add `secp256k1_verify`, ECDSA
-  secp256k1 signature verification scheme for Cosmos signature formats. ([#780])
+- cosmwasm-crypto: Add `ed25519_verify`, EdDSA ed25519 signature verification
+  scheme for Tendermint signature and public key formats. ([#771])
+- cosmwasm-crypto: New crypto-related crate. Add `secp256k1_verify`, ECDSA
+  secp256k1 signature verification scheme for Cosmos signature and public key
+  formats. ([#780])
 - cosmwasm-vm: Add PinnedMemoryCache. ([#696])
 - cosmwasm-vm: The new `Cache::analyze` provides a static analyzis of the Wasm
   bytecode. This is used to tell the caller if the contract exposes IBC entry

README.md

@@ -139,6 +139,11 @@ extern "C" {
     /// Returns 1 on verification success and 0 on failure.
     fn secp256k1_verify(message_hash_ptr: u32, signature_ptr: u32, public_key_ptr: u32) -> u32;
 
+    /// verifies a message against a signature with a public key, using the
+    /// ed25519 EdDSA scheme.
+    /// Returns 1 on verification success and 0 on failure.
+    fn ed25519_verify(message_ptr: u32, signature_ptr: u32, public_key_ptr: u32) -> u32;
+
     /// Executes a query on the chain (import). Not to be confused with the
     /// query export, which queries the state of the contract.
     fn query_chain(request: u32) -> u32;