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TLS的握手过程有一个规律,客户端发出的第一个数据包(称为ClientHello),大约是170字节左右,然后服务器会回复一个数据包(称为ServerHello),大约是70字节左右。之后还有一些交换证书之类的流程,数据包的大小都是有规律的。参考: http://netsekure.org/2010/03/tls-overhead/

尽管加密之后,这几个数据包的内容无法被破解,但它们的长度规律是不会变的。这就成为了一个特征。至于这个特征会不会被墙利用,我们不得而知,当然他们也不会明说。于是为了防范于未然,V2Ray 3.31 中加入了一个实验性功能。

开启方式,在启动 V2Ray 客户端之前设置环境变量 V2RAY_VMESS_PADDING=1 。服务器端自适应,即可以同时接收不同设定的客户端发来的数据。

它的作用是在每一个 VMess 数据包的结尾都添加若干个随机字符,以干扰第三方对于数据包长度的判断。这一功能对连接的吞吐量几乎没有影响(< 3%)。

另外,还可以开启 Mux 把数据包的特征减到最小。



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TLS的握手过程有一个规律,客户端发出的第一个数据包(称为ClientHello),大约是170字节左右,然后服务器会回复一个数据包(称为ServerHello),大约是70字节左右。之后还有一些交换证书之类的流程,数据包的大小都是有规律的。参考: http://netsekure.org/2010/03/tls-overhead/

尽管加密之后,这几个数据包的内容无法被破解,但它们的长度规律是不会变的。这就成为了一个特征。至于这个特征会不会被墙利用,我们不得而知,当然他们也不会明说。于是为了防范于未然,V2Ray 3.31 中加入了一个实验性功能。

开启方式,在启动 V2Ray 客户端之前设置环境变量 V2RAY_VMESS_PADDING=1 。服务器端自适应,即可以同时接收不同设定的客户端发来的数据。

它的作用是在每一个 VMess 数据包的结尾都添加若干个随机字符,以干扰第三方对于数据包长度的判断。这一功能对连接的吞吐量几乎没有影响(< 3%)。

另外,还可以开启 Mux 把数据包的特征减到最小。

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Export WhatsApp stickers to Telegram on iPhone

You can’t. What you can do, though, is use WhatsApp’s and Telegram’s web platforms to transfer stickers. It’s easy, but might take a while.Open WhatsApp in your browser, find a sticker you like in a chat, and right-click on it to save it as an image. The file won’t be a picture, though—it’s a webpage and will have a .webp extension. Don’t be scared, this is the way. Repeat this step to save as many stickers as you want.Then, open Telegram in your browser and go into your Saved messages chat. Just as you’d share a file with a friend, click the Share file button on the bottom left of the chat window (it looks like a dog-eared paper), and select the .webp files you downloaded. Click Open and you’ll see your stickers in your Saved messages chat. This is now your sticker depository. To use them, forward them as you would a message from one chat to the other: by clicking or long-pressing on the sticker, and then choosing Forward.

Telegram Be The Next Best SPAC

I have no inside knowledge of a potential stock listing of the popular anti-Whatsapp messaging app, Telegram. But I know this much, judging by most people I talk to, especially crypto investors, if Telegram ever went public, people would gobble it up. I know I would. I’m waiting for it. So is Sergei Sergienko, who claims he owns $800,000 of Telegram’s pre-initial coin offering (ICO) tokens. “If Telegram does a SPAC IPO, there would be demand for this issue. It would probably outstrip the interest we saw during the ICO. Why? Because as of right now Telegram looks like a liberal application that can accept anyone - right after WhatsApp and others have turn on the censorship,” he says.

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