• Apple,  Swift

    Simple Swift Fuzzer

    May 1, 2023

    Sometimes we want to test a function to see how… robust it is. This is a small example fuzzing function to input randomly generated characters that get passed to another function. It just uses randomBytes so much more logic could easily be added to constrain what’s being passed to whatever type it’s being passed to… but this satisfies my need. import Foundation func fuzz(function: () -> Void) { // Generate a random input to pass to the function we are fuzzing let input = Data(randomBytes: 1024) // Call the fuzzed function with the random input do { try function() } catch { print(error) } // Check the fuzzed function to…

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  • Programming

    File Lists And Version History With The Dropbox API

    April 29, 2023

    TLDR: See https://github.com/krypted/DropboxScripts for some python scripts for the Dropbox API I recently needed to get a list of changes to all files on Dropbox. To get there, I first found the list_folder endpoint, so here’s a script to dump a list of files https://github.com/krypted/DropboxScripts/blob/main/ListDropboxFiles.py However, then I realized I needed to look up the version history for files, so here’s a script to dump version history: https://github.com/krypted/DropboxScripts/blob/main/ListHistory.py Then to tie the two together, this script lists version changes for each dumped file recursively: https://github.com/krypted/DropboxScripts/blob/main/ListChangesPerFile.py Then I realized that the user was listed with a GUID rather than the actual user. I just need a paper trail and have few…

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  • Python

    Google Cloud Function To Encrypt A JSON Document With An ECC Key

    April 27, 2023

    To use this function, create a Google Cloud Function that uses the encrypt_json() function in Google Cloud Console or the gcloud command-line tool. Once created the function, invoke it by sending a POST request to the function’s URL. The request body should contain the JSON document to encrypt. The response body will contain the encrypted JSON document. For example, to encrypt the JSON document my_data.json, you would use the following command: The response body will contain the encrypted JSON document. This function uses the Google Cloud KMS service to encrypt the JSON document. So make sure there’s a KMS key enabled in a project before using the function.

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  • Programming

    Small Go Script To Send Some JSON To An Endpoint

    April 27, 2023

    The following was written to act as a Google Cloud Function or Lambda, and sends a simple POST to a standard rest endpoint at https://krypted.com/api/v1/sites with the json defined in jsonObject. The endpoint can easily be changed in http.NewRequest or converted to a variable. The response to the POST is then returned as stdout. package main import ( "fmt" "net/http" "encoding/json" ) func main() { // Create a new HTTP client. client := &http.Client{} // Create a new JSON object. jsonObject := map[string]string{ "name": "Krypted", "site": "www.krypted.com", } // Marshal the JSON object to a string. jsonString, err := json.Marshal(jsonObject) if err != nil { fmt.Println(err) return } // Create…

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  • Programming,  Uncategorized

    Creating Unit Tests With Google Bard

    April 25, 2023

    Unit tests are one of those things that evolve over time. When we talk about test coverage, anyone that thinks they have full coverage is kidding themselves, but it’s not uncommon for my workflows to just build some stuff and go back and fill in the unit tests before I bring in a second person. And yet… we know we need to do them. Sometimes I’ve gotten help with this specific part of projects from sites like Upwork. There’s been a lot of talk about AI eating the world, so I thought I’d see how much of this kind of thing AI could get us for free. Let’s start with…

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