feat(cybersecurity): auto-commit con 48 cambios

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

functions/cybersecurity/verify_ed25519.go

@@ -0,0 +1,10 @@
+package cybersecurity
+
+import "crypto/ed25519"
+
+// VerifyEd25519 reports whether sig is a valid Ed25519 signature of msg under pub.
+// pub must be a valid Ed25519 public key (32 bytes as returned by GenerateIdentity).
+// Returns true only if the signature is authentic; false on any mismatch or invalid input.
+func VerifyEd25519(pub, msg, sig []byte) bool {
+	return ed25519.Verify(ed25519.PublicKey(pub), msg, sig)
+}