如果你有多个钥匙，你可能需要这样做 ssh-add private-keyfile

我正与同样的问题作斗争，这就是我所做的，我能够克隆回购。我在Mac上遵循了这个步骤。

第一步:检查我们是否已经拥有公共SSH密钥。

打开终端。 输入ls -al ~/。查看是否存在现有的ssh密钥:

检查目录列表，查看是否已经拥有公共SSH密钥。默认public是以下d_dsa之一。酒吧,id_ecdsa。酒吧,id_ed25519。酒吧,id_rsa . pub。

如果你没有找到，那么转到步骤2，否则继续步骤3

步骤2:生成SSH公钥

Open Terminal. Enter the following command with a valid email address that you use for github ssh-keygen -t rsa -b 4096 -C "your_email@example.com" You will see the following in your terminal Generating public/private rsa key pair. When it prompts to"Enter a file in which to save the key," press Enter. This accepts the default file location. When it prompts to Enter a file in which to save the key (/Users/you/.ssh/id_rsa): [Press enter] Just press enter again. At the prompt, "Type a secure passphrase. Enter passphrase (empty for no passphrase): [Type a passphrase]" press enter if you don't want to Enter same passphrase again: [Type passphrase again] press enter again

这将生成id_rsa.pub

步骤3:添加SSH密钥到SSH -agent

Interminal type eval "$(ssh-agent -s)" Add your SSH key to the ssh-agent. If you are using an existing SSH key rather than generating a new SSH key, you'll need to replace id_rsa in the command with the name of your existing private key file. Enter this command $ ssh-add -K ~/.ssh/id_rsa Now copy the SSH key and also add it to you github account In terminal enter this command with your ssh file name pbcopy < ~/.ssh/id_rsa.pub This will copy the file to your clipboard Now open you github account Go to Settings > SSH and GPG keys > New SSH key Enter title and paste the key from clipboard and save it. Voila you're done.

如果用户未生成之前设置的ssh公私钥对

此信息在聊天上工作，但可以应用于所有其他支持SSH pubkey身份验证的git存储库。(参见[gitolite][1]， gitlab或github。)

首先设置您自己的公钥/私钥对集。这 可以使用DSA或RSA，所以基本上你设置的任何密钥都可以工作。 在大多数系统上，您可以使用ssh-keygen。

First you'll want to cd into your .ssh directory. Open up the terminal and run: cd ~/.ssh && ssh-keygen Next you need to copy this to your clipboard. On OS X run: cat id_rsa.pub | pbcopy On Linux run: cat id_rsa.pub | xclip On Windows (via Cygwin/Git Bash) run: cat id_rsa.pub | clip On Windows (Powershell) run: Get-Content id_rsa.pub | Set-Clipboard (Thx to @orion elenzil) Add your key to your account via the website. Finally setup your .gitconfig. git config --global user.name "bob" git config --global user.email bob@... (don't forget to restart your command line to make sure the config is reloaded) That's it you should be good to clone and checkout.

更多信息请访问https://help.github.com/articles/generating-ssh-keys(感谢@Lee Whitney) [1]: https://github.com/sitaramc/gitolite

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如果用户已经生成了之前设置的ssh公私钥对

检查哪个密钥已被授权在您的github或gitlab帐户设置 确定必须从本地计算机关联哪个相应的私钥

Eval $(ssh agent -s)

定义键的位置

ssh-add ~ / . ssh / id_rsa

在MAC中，进入终端

1)使用命令- cd ~进入主目录

2) cd .ssh && ssh-keygen(默认情况下，双击输入/返回键)

Generating public/private rsa key pair.
Enter file in which to save the key (/Users/username/.ssh/id_rsa):      
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in /Users/usernmae/.ssh/id_rsa.

3)之后，做“ls”。您将找到id_rsa。酒吧文件。

4)复制id_rsa. conf文件中的内容。Pub文件(使用cat命令读取- cat id_rsa.pub)

5)导航到BitBucket或任何支持SSH密钥的版本工具。使用“添加键选项”粘贴内容

就是这样。试着现在就做出承诺和努力。

总是检查github ssh密钥生成程序，而不是一些过时的博客

https://docs.github.com/en/authentication/connecting-to-github-with-ssh/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent

在这里你可以看到键是通过以下方式生成的:

ssh-keygen -t ed25519 -C "your_email@example.com"

所以算法是ed25519而不是rsa或者别的什么。

更广泛的故障排除，甚至自动修复可以完成:

ssh -vT git@github.com

或者，根据以下意见，我们可以发出:

ssh -vT git@gitlab.com

或者用你的组织正在运行的Git实例替换gitlab/github。

来源:https://help.github.com/articles/error-permission-denied-publickey/