OSS Projects and Documentation

#Tiny CBOR#

npm i @levischuck/tiny-cbor

pnpm add @levischuck/tiny-cbor

deno add jsr:@levischuck/tiny-cbor

bunx jsr add @levischuck/tiny-cbor

This minimal library decodes and encodes most useful CBOR structures into simple JavaScript structures.

• Maps with keys as strings or numbers with CBORType values in JS Maps
• Arrays of CBORType values
• integers as numbers
• float32 and float64 as numbers
• float16 NaN, Infinity, -Infinity
• strings
• byte strings as Uint8Array
• booleans
• null and undefined
• tags as CBORTag(tag, value)

#Limitations#

• No support for indefinite-length arrays, maps, strings, or byte strings.
• Limited support for half-precision floating point numbers.
• JS integers outside the range of [-9007199254740991, 9007199254740991], see Number.MAX_SAFE_INTEGER.
• Does not take input of or output to JS Objects – If you're looking to make CBOR parsing and encoding more ergonomic with known structures, see Tiny CBOR Schema below.
• Map keys must be text strings or numbers. Other types are not supported until something like the TC39 Composites proposal reaches baseline support.
• Does not interpret registered tags into other structures like JS Dates.

Source codeDocumentation

#Tiny CBOR Schema#

npm i @levischuck/tiny-cbor-schema

pnpm add @levischuck/tiny-cbor-schema

deno add jsr:@levischuck/tiny-cbor-schema

bunx jsr add @levischuck/tiny-cbor-schema

This minimal library decodes and encodes most useful CBOR structures into prespecified JavaScript structures through a schema at runtime! When used in TypeScript, parsed outputs will have the types you expect too. See tiny-cbor, which is automatically included, for limitations on what CBOR types are supported. It works in a similar way to Zod where you define a schema object with functions exported by this library. With this schema in hand, you can use the fromCBOR and toCBOR functions to read, update, and write CBOR binary data.

Source codeDocumentation

#Tiny Encodings#

npm i @levischuck/tiny-encodings

pnpm add @levischuck/tiny-encodings

deno add jsr:@levischuck/tiny-encodings

bunx jsr add @levischuck/tiny-encodings

This library provides reasonably fast constant-time implementations of:

• Base64 Standard and Base64 URL encoding and decoding
• Hex / Base16 encoding and decoding

Source codeDocumentation

#Tiny COSE#

npm i @levischuck/tiny-cose

pnpm add @levischuck/tiny-cose

deno add npm:@levischuck/tiny-cose

bun add @levischuck/tiny-cose

Reads COSE keys and converts them into usable CryptoKey references. Intended use is to register and verify WebAuthn authenticators in Tiny WebAuthn (see below).
Supported signing and verification algorithms include:

• RS256
• RS384
• RS512
• PS256
• PS384
• PS512
• ES256
• ES384
• EdDSA with Ed25519

#Limitations#

• ES512 is not implemented due to Deno lacking support for the P-521 curve.
• Does not support other keys for algorithms like HMAC, HKDF, AES-GCM, or ECDH keys.
• Does not support or verify COSE messages such as COSE_Sign or COSE_Mac0.
• Does not support COSE headers, signing objects, MAC objects, encryption objects, or other COSE structures.

Source code

#Tiny WebAuthn#

npm i @levischuck/tiny-webauthn

pnpm add @levischuck/tiny-webauthn

deno add npm:@levischuck/tiny-webauthn

bun add @levischuck/tiny-webauthn

A server-side WebAuthn library made to be as comprehensible in as little code as possible.
Supports:

• Registering and authenticating roaming authenticators
• Registering and authenticating device-bound authenticators
• Registering and authenticating device-bound passkeys
• Registering and authenticating synced passkeys

Source codeDemo

#JaneTLS#

A Cryptography utility implementation in Janet
I no longer use the Janet programming language, so I'm not actively developing this project anymore. If you're looking into what you can do, check out the unit tests. It provides hashing, symmetric cryptography, assymetric cryptography, and encoding utilities. The cryptography primitives are implemented using MBed TLS. Contrary to its name, JaneTLS does not provide a means to facilitate TLS connections.

Source code