RSA / ECDSA keys | AES/HMAC keys

Request interfaces | Getting in memory | Downloading to disk | Streaming data | Non blocking connections | Async requests | Exception handling | Error automatically | Check manually | Customizing requests | Setting handle options | ENUM (long) options | Disabling HTTP/2 | Performing the request | Reading cookies | On reusing handles | Posting forms | Using pipes

Directory functions | File functions | Path functions

Installing magick | Build from source | Image IO | Read and write | Converting formats | Preview | Transformations | Cut and edit | Filters and effects | Kernel convolution | Text annotation | Combining with pipes | Image Vectors | Layers | Combining | Pages | Animation | Drawing and Graphics | Graphics device | Drawing device | Animated Graphics | Raster Images | Base R rasters | The grid package | OCR text extraction

Modifying Existing XML | Text Modification | Attribute and Namespace Definition Modification | Name Modification | Node modification | Replacing existing nodes | Add a sibling | Add a child | Removing nodes | Namespaces

The XOR operator | Stream ciphers | Symmetric encryption | Public-key encryption and Diffie-Hellman

Multiple SSL Backends | Using a Proxy Server | Discovering Your Proxy Server

Installation and docs | Enable a repository | Get data from the APIs | All packages in an universe | Info on all packages in an universe | Info on a single package in an universe | Search within a single universe | Search among all universes

Syntax Validation | Script Validation | ESprima: Parsing | Compiling CoffeeScript | Uglify: reformatting | Uglify: optimization | JSHint: code analysis

JSON Web Token: HMAC tagging | JSON Web Token: RSA/ECDSA signature | Reserved jwt-claim names | Where is the JSON

Spell Checking | Check Individual Words | Check Documents | Check PDF files | Check Manual Pages | Morphological Analysis | Stemming Words | Analyzing Words | Tokenizing | Summarizing Text | Hunspell Dictionaries | Setting a Language | Installing Dictionaries in RStudio | Dictionaries on Linux | Custom Dictionaries

Compare to digest

Secure Random Numbers

Extract Text from Images | Language Data | Preprocessing with Magick | Read from PDF files | Tesseract Control Parameters | Whitelist / Blacklist characters

Installation | Connecting to an SSH server | Authentication | Execute Script or Command | Capturing output | Using sudo | Transfer Files via SCP | Hosting a Tunnel | Disconnecting

Two types of remotes | Special note for Windows | Part 1: Storing HTTPS credentials | Accessing the HTTPS Credential Store from R | Setting your GITHUB_PAT | Non-interactive use | Part 2: Managing SSH Keys | Generating a key

Loading JavaScript Libraries | Data Interchange | Function Calls | Promises | Interactive JavaScript Console | warnings, errors and console.log | The Global Namespace | Syntax Validation | Callback To R

Introduce yourself to Git | Local repository basics

What is V8 (not) | Using JavaScript libraries | NPM and browserify | Browserify example: js-beautify

GPG basics | Public key crypto | Web of trust | Your keyring | Generate keys | Import from keyserver | Import from file | Export a key | Delete a key | Digital Signatures | Sign a file | Verify a signature | Debian example | Anonymous Encryption | Encrypt a message | Decrypt a message | Authenticated Encryption | Sign and Encrypt | Decrypt and Verify

Using Sodium | Random data generator | Hash functions | Secret key encryption | Secret key authentication | Public key encryption | Public key authentication (signatures) | Public key authenticated encryption

Equation 1 | Equation 2 | Equation 3 | Equation 4 | Equation 5 | Equation 6 | Equation 7 | Equation 8

SVG with embedded CSS | SVG with external CSS | Bitmap rendering and magick

A bidirectional mapping | Paging with jsonlite | Automatically combining many pages

Github | CitiBike NYC | Ergast | ProPublica | New York Times | Twitter

Dynamic linking to system libraries on Linux | Automatically determine runtime system-dependencies | A suggested workflow

RSA key generation | How RSA encryption works

Compression ratio | Decompression speed | Compression speed

Simplification | Atomic Vectors | Data Frames | Matrices and Arrays

The DER format | The PEM format | The OpenSSH format | The JSON Web Key (JWK) format

Security in R: Introduction and motivation | Use cases and concerns of sandboxing R | Various approaches of confining R | The AppArmor package | Profiling R: Defining security policies | Concluding remarks | Example profiles | Security unit tests

1 Introduction | 2 Converting between JSON and R classes | 3 Structural consistency and type safety in dynamic data | Appendices | A Public JSON APIs | B Simple JSON RPC with OpenCPU