Deckware

Extract the entropy from a randomly shuffled deck of cards

Deckware takes a shuffled deck of 54 cards in your hands (the standard 52-card deck plus 2 distinguishable jokers), and extracts 237-bits of entropy as a hexadecimal string from that shuffle. If sufficiently shuffled, a deck of 54 cards produces ~237.0638 bits of entropy which is strong enough for cryptographic symmetric keys.

Passphrase Generator

The hexadecimal result could be converted into a Niceware passphrase or used as the entropy for a Bitcoin BIP39 mnemonic. Deckware can also directly generate an 8-word passphrase with 79-bits security. Check out this passphrase generator tool.

Unshuffled Deck

Drag and drop each card to the table below based on the shuffled deck in your hands.

Shuffled Deck

This is the unique ID for your shuffled deck: