We present Tortoise, an experimental nonce-based authenticated encryption scheme modeled on the Synthetic Counter-in-Tweak framework to convert any block cipher into Authenticated Encryption with Associated Data. Our work supports two modes: nonce-respecting and nonce-misuse-resistant. \textbf{Source code} available at \url{https://github.com/kenluck2001/cipherResearch/tree/main/src/tortoise}.

翻译：我们提出Tortoise，一种基于临时数的实验性认证加密方案，采用合成计数器-扭曲框架建模，可将任意分组密码转换为带关联数据的认证加密。本工作支持两种模式：临时数合规模式与临时数滥用抵抗模式。\textbf{源代码}可在\url{https://github.com/kenluck2001/cipherResearch/tree/main/src/tortoise}获取。