initial addition of essential crypto, encoders, workflows and LLM instructions

pkg/utils/fastequal.go

@@ -0,0 +1,13 @@
+package utils
+
+func FastEqual(a, b []byte) (same bool) {
+	if len(a) != len(b) {
+		return
+	}
+	for i, v := range a {
+		if v != b[i] {
+			return
+		}
+	}
+	return true
+}