What Happens When You Click ‘Send’ on an Encrypted Message

当你点击‘发送’一条加密消息时，发生了什么

课文音频

Listen to the full story · 完整逐句/整段音频可在解锁后使用。

您仍可先看下方课文摘要；在阅读器可查看该书试读与权益说明。

从第 4 课起，导读页仅展示部分正文，便于您了解难度与风格。

Before leaving your device, your message is scrambled using public-key encryption—where the recipient’s public key locks it, and only their private key unlocks it.
Each app generates unique key pairs during setup, and those keys never travel across the internet; only encrypted data does.

Unlock full vocabulary & bilingual guide · 完整课文、逐句音频与全部译文请在解锁学习权益后于阅读器中查看。

解锁学习权益后，您可在导读页继续浏览全课重点词汇、参考译文与语法提示；听全文、逐句点读与查词建议在阅读器中使用。