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+# Git Clone Authentication Guide
+
+
+## Using SSH Key
+
+1. **Generate SSH Key**:
+   ```bash
+   ssh-keygen -t rsa -b 4096 -C "<user e-mail>@example.com"
+//Follow the prompts to save the key in the default location.
+
+2. **Add SSH Key to SSH Agent**:
+   ```bash
+   eval "$(ssh-agent -s)"
+   ssh-add ~/.ssh/id_rsa
+
+3. **Add SSH Key to SSH GitHub**:
+    //Copy the SSH key to your clipboard
+   ```bash
+   cat ~/.ssh/id_rsa.pub
+    //Go to GitHub, navigate to Settings > SSH and GPG keys, and click New SSH key. Paste the key and save.
+
+4. **Clone the Repository Using SSH**:
+   ```bash
+   git clone git@github.com:chaeh03/fosslight_scanner.git
+
+
+## USing Personal Access Token (PAT)
+
+1. **Generate Personal Access Token(PAT)**:
+    //Go to GitHub, navigate to Settings > Developer settings > Personal access tokens, and click Generate new token.
+    //Select the necessary scopes and generate the token. Copy the generated token.
+
+2. **Clone the Repository Using PAT**:
+   ```bash
+   git clone https://username:<your-token>@github.com/fosslight/fosslight_scanner.git
+    //git clone https://username:<your-token>@github.com/fosslight/fosslight_scanner.git
+
+
+## Save the File
+    //Save the document with your changes (`Ctrl + S` or `Cmd + S`).
+
+
+## Stage and Commit Changes
+
+1. **Stage and Commit Changes**:
+   //In the terminal, stage and commit your changes:
+   ```bash
+   git add gitauthentication.md
+   git commit -m "Add guide for git clone authentication (#59)"
+
+2. **Push to Remote Repository**:
+    ```bash
+   git push origin fix-issue-59
+
+
+## Create a Pull Request
+
+1. **Create a Pull Request on GitHub**:
+    //Go to your forked repository's GitHub page.
+    //Navigate to the "Pull Requests" tab and click "New Pull Request".
+    //Select the fix-issue-59 branch and compare it with the base repository's 'main' or 'master' branch.
+    //Write a title and description for your PR, mentioning the related issue number:
+
+    //example: Fix: Add guide for git clone authentication
+
+                    This PR adds a guide for setting up authentication when using git clone.
+
+                    Related Issue: #59
+    
+    //Click "Create Pull Request" to submit your PR.
+ 
+    
+   
+
+   
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