/crypto/crypto.ts | std@0.218.2

import * as mod from "https://deno.land/std@0.218.2/crypto/crypto.ts";

Extensions to the Web Crypto API supporting additional encryption APIs, but also delegating to the built-in APIs when possible.

Provides additional digest algorithms that are not part of the WebCrypto standard as well as a subtle.digest and subtle.digestSync methods.

The KeyStack export implements the KeyRing interface for managing rotatable keys for signing data to prevent tampering, like with HTTP cookies.

Supported algorithms

Here is a list of supported algorithms. If the algorithm name in WebCrypto and Wasm/Rust is the same, this library prefers to use algorithms that are supported by WebCrypto.

WebCrypto:

SHA-384
SHA-256
SHA-512 (length-extendable and collidable)

Wasm/Rust:

BLAKE2B-128
BLAKE2B-160
BLAKE2B-224
BLAKE2B-256
BLAKE2B-384
BLAKE2B
BLAKE2S
BLAKE3
FNV32 (length-extendable)
FNV32A (length-extendable)
FNV64 (length-extendable)
FNV64A (length-extendable)
KECCAK-224
KECCAK-256
KECCAK-384
KECCAK-512
SHA-384
SHA3-224
SHA3-256
SHA3-384
SHA3-512
SHAKE128
SHAKE256
TIGER
RIPEMD-160 (length-extendable)
SHA-224 (length-extendable)
SHA-256 (length-extendable)
SHA-512 (length-extendable)
MD4 (collidable and length-extendable)
MD5 (collidable and length-extendable)
SHA-1 (collidable and length-extendable)

Examples

Example 1

import { crypto } from "https://deno.land/std@0.218.2/crypto/mod.ts";

// This will delegate to the runtime's WebCrypto implementation.
console.log(
  new Uint8Array(
    await crypto.subtle.digest(
      "SHA-384",
      new TextEncoder().encode("hello world"),
    ),
  ),
);

// This will use a bundled Wasm/Rust implementation.
console.log(
  new Uint8Array(
    await crypto.subtle.digest(
      "BLAKE3",
      new TextEncoder().encode("hello world"),
    ),
  ),
);

Convert hash to a string

import {
  crypto,
} from "https://deno.land/std@0.218.2/crypto/mod.ts";
import { encodeHex } from "https://deno.land/std@0.218.2/encoding/hex.ts"
import { encodeBase64 } from "https://deno.land/std@0.218.2/encoding/base64.ts"

const hash = await crypto.subtle.digest(
  "SHA-384",
  new TextEncoder().encode("You hear that Mr. Anderson?"),
);

// Hex encoding
console.log(encodeHex(hash));

// Or with base64 encoding
console.log(encodeBase64(hash));

Variables

v crypto	An wrapper for WebCrypto adding support for additional non-standard algorithms, but delegating to the runtime WebCrypto implementation whenever possible.
v wasmDigestAlgorithms	All cryptographic hash/digest algorithms supported by std/crypto/_wasm.

Interfaces

I StdCrypto	Extensions to the Web `Crypto` interface.
I StdSubtleCrypto	Extensions to the web standard `SubtleCrypto` interface.

Type Aliases

T DigestAlgorithm	Extended digest algorithms accepted by `stdCrypto.subtle.digest`.
T DigestAlgorithmName	Extended digest algorithm names.
T DigestAlgorithmObject	Extended digest algorithm objects.
T FNVAlgorithms	FNV (Fowler/Noll/Vo) algorithms names.
T WasmDigestAlgorithm	An algorithm name supported by std/crypto/_wasm.