{"id":18864777,"url":"https://github.com/hackndo/sha1_length_extension","last_synced_at":"2025-07-12T13:04:35.220Z","repository":{"id":92732581,"uuid":"42251491","full_name":"Hackndo/sha1_length_extension","owner":"Hackndo","description":"Python implementation of sha1 and sha1 hash length extension for french tutorial on my blog","archived":false,"fork":false,"pushed_at":"2015-10-26T12:34:27.000Z","size":180,"stargazers_count":1,"open_issues_count":0,"forks_count":0,"subscribers_count":2,"default_branch":"master","last_synced_at":"2025-05-30T14:33:41.760Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":"http://blog.hackndo.com/hash-length-extension/","language":"Python","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"gpl-2.0","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/Hackndo.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}},"created_at":"2015-09-10T14:59:37.000Z","updated_at":"2020-01-17T09:07:11.000Z","dependencies_parsed_at":"2023-03-07T08:26:19.680Z","dependency_job_id":null,"html_url":"https://github.com/Hackndo/sha1_length_extension","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/Hackndo/sha1_length_extension","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Hackndo%2Fsha1_length_extension","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Hackndo%2Fsha1_length_extension/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Hackndo%2Fsha1_length_extension/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Hackndo%2Fsha1_length_extension/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/Hackndo","download_url":"https://codeload.github.com/Hackndo/sha1_length_extension/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Hackndo%2Fsha1_length_extension/sbom","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":264995115,"owners_count":23694883,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","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":[],"created_at":"2024-11-08T04:44:01.021Z","updated_at":"2025-07-12T13:04:35.192Z","avatar_url":"https://github.com/Hackndo.png","language":"Python","funding_links":[],"categories":[],"sub_categories":[],"readme":"# Hash length extension for SHA1\n\nDescription\n===========\n\nPython implementation of **sha1** and **sha1 hash length extension** for [french tutorial on my blog](http://blog.hackndo.com/hash-length-extension/)\n\nHow to use\n==========\n\n```python\nimport sha1_extender\n\nprint \"=\u003e Original sha1\"\nprint sha1_extender.sha1(msg=\"MySecret!\" + \"name=hackndo\u0026admin=0\")\n\nprint \"\\n=\u003e The magic\"\nresult = sha1_extender.sha1_append(known_text=\"hackndo is amazing\", append=\" and smart\", hash=\"c187bbe5056dc6602091040b694fffd27e4af1b5\", secret_size=9)\nprint result[\"injection\"]\nprint result[\"sha1\"]\n\nprint \"\\n=\u003e Check if predicted is correct\"\nprint sha1_extender.sha1(msg=\"MySecret!\" + \"\\x68\\x61\\x63\\x6b\\x6e\\x64\\x6f\\x20\\x69\\x73\\x20\\x61\\x6d\\x61\\x7a\\x69\\x6e\\x67\\x80\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\xd8\\x20\\x61\\x6e\\x64\\x20\\x73\\x6d\\x61\\x72\\x74\")\n```\n\nResult\n======\n```\n=\u003e Original sha1\n7cd80684964d9e029c1ba8717a45d54f14b15fcb\n\n=\u003e The magic\n\\x68\\x61\\x63\\x6b\\x6e\\x64\\x6f\\x20\\x69\\x73\\x20\\x61\\x6d\\x61\\x7a\\x69\\x6e\\x67\\x80\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\xd8\\x20\\x61\\x6e\\x64\\x20\\x73\\x6d\\x61\\x72\\x74\n8288af4b63cd05aa7d7b9d8ea553a1d0d08e2b10\n\n=\u003e Check if predicted is correct\n8288af4b63cd05aa7d7b9d8ea553a1d0d08e2b10\n```\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fhackndo%2Fsha1_length_extension","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fhackndo%2Fsha1_length_extension","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fhackndo%2Fsha1_length_extension/lists"}