crypto lab experimental

all decryption/encryption runs in your browser via the Web Crypto API. nothing you paste here ever leaves your machine.

aes-256-gcm

password-based symmetric encryption. anything in lb1$... format decrypts here; anything you encrypt gets that format. ciphertext is base64.

text or ciphertext password

result

sha-256

one-way hash of any text, client-side. the same input always produces the same digest.

input

digest

caesar shift

the classic rot-n cipher. letters only, case preserved; everything else passes through untouched.

text shift (1-25)

result

base64

encode/decode to base64. unicode-safe (utf-8).

text

result

hex

convert between text/hex. input auto-detects: text with hex-ish pairs decodes, hex encodes.

text or hex

result

xor (stream key)

symmetrical — xor twice with the same key and you get the original back. output is hex.

key text, or hex to run back through

result (hex)

pgp

real openpgp armor via openpgp.js — keys and messages interoperate with gpg, keybase, protonmail, &c. everything runs in your browser; put a passphrase on any private key you keep.

generate keypair

identity (name or name <email>) passphrase (optional)

public key

private key

encrypt (optionally sign)

recipient public key message sign with private key (optional) private key passphrase (optional)

ciphertext

decrypt (optionally verify)

your private key private key passphrase ciphertext verify signature with public key (optional)

plaintext

format note for aes: lb1$<base64(iv+salt+ciphertext+tag)> — keep the whole string when you share it.

crypto lab experimental

aes-256-gcm

sha-256

caesar shift

base64

hex

xor (stream key)

pgp

generate keypair

encrypt (optionally sign)

decrypt (optionally verify)

experimental tools