{"id":21871102,"url":"https://github.com/isaka-james/caesar","last_synced_at":"2026-05-15T23:33:32.182Z","repository":{"id":240229543,"uuid":"802041353","full_name":"isaka-james/caesar","owner":"isaka-james","description":"The Linux tool to decrypt Caesar Cipher written using Rust, Very Fast Indeed","archived":false,"fork":false,"pushed_at":"2024-05-17T12:23:11.000Z","size":950,"stargazers_count":3,"open_issues_count":0,"forks_count":0,"subscribers_count":1,"default_branch":"main","last_synced_at":"2025-03-21T22:26:20.385Z","etag":null,"topics":["caesar-","caesar-decryption","cryptography","linux-tool","rust","rust-powered"],"latest_commit_sha":null,"homepage":null,"language":"Shell","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/isaka-james.png","metadata":{"files":{"readme":"README.MD","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2024-05-17T12:05:24.000Z","updated_at":"2024-12-07T13:40:28.000Z","dependencies_parsed_at":"2024-05-17T13:31:45.770Z","dependency_job_id":"c707dd29-6c78-45fc-9e86-7115caa590cd","html_url":"https://github.com/isaka-james/caesar","commit_stats":null,"previous_names":["isaka-james/caesar"],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/isaka-james/caesar","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/isaka-james%2Fcaesar","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/isaka-james%2Fcaesar/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/isaka-james%2Fcaesar/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/isaka-james%2Fcaesar/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/isaka-james","download_url":"https://codeload.github.com/isaka-james/caesar/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/isaka-james%2Fcaesar/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":33083566,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-05-15T20:25:35.270Z","status":"ssl_error","status_checked_at":"2026-05-15T20:25:34.732Z","response_time":103,"last_error":"SSL_connect returned=1 errno=0 peeraddr=140.82.121.5:443 state=error: unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["caesar-","caesar-decryption","cryptography","linux-tool","rust","rust-powered"],"created_at":"2024-11-28T06:13:23.543Z","updated_at":"2026-05-15T23:33:32.177Z","avatar_url":"https://github.com/isaka-james.png","language":"Shell","funding_links":[],"categories":[],"sub_categories":[],"readme":"# Caesar Cipher Decryption Tool\n\nA simple command-line tool for decrypting Caesar cipher-encrypted text. This tool can automatically search for the correct key by trying all possible shifts from -26 to +26 and stops once it finds a specified target variable in the decrypted text.\n\n## Installation\n\nTo install the tool on Kali Linux, use the provided `install.sh` script. Run the following command in your terminal:\n\n```bash\nbash install.sh\n```\n\n## Usage\n\nYou can use the tool in two ways: by providing command-line arguments or by interacting with prompts.\n\n### Example with Command-Line Arguments\n\nYou can specify the encrypted text and the target variable directly in the command line:\n\n```bash\n┌──(isaka㉿kali)-[~/temp/ctf]\n└─$ caesar -d \"wpjvJAM{jhlzhy_k3jy9wa3k_i204hkj6}\" -w \"CTF\"\nKey found: -19\nDecrypted text: picoCTF{caesar_d3cr9pt3d_b204adc6}\n```\n\n\u003e You can use that when you only know that before encryption, the plain text contained `CTF` in it, you can use that to many various words out there :)\n\n### Example with Interactive Prompts\n\nYou can also run the tool without arguments and it will prompt you to enter the encrypted text and the target variable:\n\n```bash\n┌──(isaka㉿kali)-[~/temp/ctf]\n└─$ caesar\nEnter the encrypted text:\nwpjvJAM{jhlzhy_k3jy9wa3k_i204hkj6}\nEnter the target variable:\nCTF\n\nKey found: -19\nDecrypted text: picoCTF{caesar_d3cr9pt3d_b204adc6}\n```\n\n## Script Details\n\n- `caesar` is the command to run the decryption tool.\n- `-d` flag is used to specify the encrypted text.\n- `-w` flag is used to specify the target variable to search for in the decrypted text.\n- `-h` or `--help` flag is used to show help and how to use the tool.\n\n## Installation Script (`install.sh`)\n\n`install.sh` script handles all the installation logic, by identifying the appropiate way to install the tool according to your enviroment,such as `~/.local/share\"` (for `debian` based users).\n\n\u003e For uninstallation you just type \n\n```bash\n┌──(isaka㉿kali)-[~/temp/ctf]\n└─$ caesar uninstall\n```\n\n## Summary\n\nThis tool is designed to help you decrypt Caesar cipher text efficiently, either by specifying the necessary parameters directly in the command line or through interactive prompts. It's particularly useful for CTF challenges and learning more about classical encryption techniques. And it is very compactible with all most all linux enviroments including Termux.\n\n- If you would like to see its source codes, you can see it [in this commit](https://github.com/isaka-james/caesar/commit/bc8b34ec52aa8034856eb8b0ebd20979082689e9)\n\n\u003cimg src=\"https://komarev.com/ghpvc/?username=caesar-tool\u0026label=Visitors\u0026color=0e75b6\u0026style=flat\" alt=\"since 24 March,2025\" /\u003e","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fisaka-james%2Fcaesar","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fisaka-james%2Fcaesar","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fisaka-james%2Fcaesar/lists"}