Revert to retrieving message buffer directly in wasm since it is fully synchronous...

diff --git a/src/assembly/index.ts b/src/assembly/index.ts
index 38f8250a637dba2b85de0779e35ebf74a1ef9ee7..3541dc2a8cb9dc72e9d21e1cb2c3a1bcdb4229f1 100644 (file)
--- a/src/assembly/index.ts
+++ b/src/assembly/index.ts
@@ -63,7 +63,6 @@ export function derive (): void {
        derive_pub.fill(0)
 }
 
-const sign_msg = new StaticArray<u8>(MESSAGE_BUFFER_BYTES)
 const sign_prv = new StaticArray<u8>(PRIVATEKEY_BYTES)
 const sign_pub = new StaticArray<u8>(PUBLICKEY_BYTES)
 const sign_sig = new StaticArray<u8>(SIGNATURE_BYTES)
@@ -86,7 +85,6 @@ export function sign (mlen: i32): void {
        }
 
        // Clear local buffers
-       sign_msg.fill(0)
        sign_prv.fill(0)
        sign_pub.fill(0)
        sign_sig.fill(0)
@@ -97,12 +95,10 @@ export function sign (mlen: i32): void {
        INPUT_BUFFER.fill(0)
 
        // Copy message buffer to local variable, then clear message buffer
-       memory.copy(changetype<usize>(sign_msg), changetype<usize>(MESSAGE_BUFFER), mlen)
-       MESSAGE_BUFFER.fill(0)
 
        // Sign, then clear local input
-       crypto_sign(sign_sig, sign_msg, mlen, sign_prv, sign_pub)
-       sign_msg.fill(0)
+       crypto_sign(sign_sig, MESSAGE_BUFFER, mlen, sign_prv, sign_pub)
+       MESSAGE_BUFFER.fill(0)
        sign_prv.fill(0)
        sign_pub.fill(0)
 
@@ -114,7 +110,6 @@ export function sign (mlen: i32): void {
        sign_sig.fill(0)
 }
 
-const verify_msg = new StaticArray<u8>(MESSAGE_BUFFER_BYTES)
 const verify_pub = new StaticArray<u8>(PUBLICKEY_BYTES)
 const verify_sig = new StaticArray<u8>(SIGNATURE_BYTES)
 /**
@@ -137,7 +132,6 @@ export function verify (mlen: i32): i32 {
        }
 
        // Clear local buffers
-       verify_msg.fill(0)
        verify_pub.fill(0)
        verify_sig.fill(0)
 
@@ -147,12 +141,10 @@ export function verify (mlen: i32): i32 {
        INPUT_BUFFER.fill(0)
 
        // Copy message buffer to local variable, then clear message buffer
-       memory.copy(changetype<usize>(verify_msg), changetype<usize>(MESSAGE_BUFFER), mlen)
-       MESSAGE_BUFFER.fill(0)
 
        // Verify, then clear local input
-       const verified = crypto_verify(verify_sig, verify_msg, mlen, verify_pub)
-       verify_msg.fill(0)
+       const verified = crypto_verify(verify_sig, MESSAGE_BUFFER, mlen, verify_pub)
+       MESSAGE_BUFFER.fill(0)
        verify_pub.fill(0)
        verify_sig.fill(0)