Book Encryption: A Clever Way to Hide Your Wallet Seed Phrase
People hear “encryption” and imagine hackers in dark rooms, blinking servers, and complicated math. But encryption can be very simple. Humans have been encrypting things for centuries long before computers existed. One of the simplest (and surprisingly smart) methods is called book encryption.
And yes, it can help you hide your crypto wallet’s seed phrase in a way that nobody else can guess.
What is Book Encryption?
Book encryption sounds technical, but it’s actually one of the simplest security tricks humans have used for centuries. Instead of writing sensitive information plainly, you hide each word inside a book by using page, line, and word numbers. It turns a simple list of numbers into a treasure map that only you can read, because only you know which book the numbers point to.
Instead of writing your sensitive words in plain text, like:
“apple tiger energy lamp …”
You turn each word into a pair of numbers (or three numbers):
Page : Line : Word
For example:
- 48:6:3
- 122:4:7
- 9:12:1
To anyone else, this looks like random numbers.
To you, it’s a roadmap.
Those numbers tell you exactly where each phrase word is hiding inside the book you picked.
The chosen book is the map.
This method is perfect for storing a crypto seed phrase because the phrase itself must never appear in plain text. A thief looking at a list like “48:6:3, 122:4:7, 9:12:1” would see nothing more than random coordinates. Meanwhile, you know that these numbers lead you to the exact words hidden inside the pages of your chosen book.
How It Works Step-By-Step
Imagine your book of choice is Things Fall Apart or The Alchemist or even the Bible. Any book with page numbers works.
Suppose your first recovery phrase word is “army”.
You flip through the book until you find army on page 48, line 6, word 3.
You write down:
“48:6:3”
Then you repeat this for all 12 or 24 seed words.
Now your “seed phrase” looks like mysterious coordinates. Someone might find the paper and think it’s homework, not a crypto key worth millions.
Important Things to Get Right
To make book encryption work well, you need to follow a few simple rules.
1. Always use the exact same book
If you lose the book, your phrase becomes unreadable.
2. Use a non-obvious book
Don’t use the most common one, like the Bible or a dictionary — too predictable.
Choose something unique: a novel you like, a huge book from school days, a cookbook, anything.
3. Don’t write the book title next to the numbers
The book is the key.
If you write the key next to the lock, they both become useless.
4. Store the paper and the book separately
If someone finds both together, the magic disappears.
Think of them like a padlock and a key. Never keep them in the same drawer.
What If Someone Finds Your Numbers?
Without the book, your numbers look like:
48:6:3
122:4:7
9:12:1
This is useless information.
There are millions of books on earth. The chance a thief picks the right one is close to zero.
Even if they pick your book by accident, chances are low they will find the exact words on the exact positions without knowing the order.
It’s like hiding a needle in a library instead of a haystack.
Strengths of Book Encryption
- Super simple
- No special tools
- No software that can get hacked
- No fear of “online storage”
- Anyone can use it
- Very cheap
- Almost invisible
It blends security with everyday life.
Weaknesses You Should Be Aware Of
No system is perfect. Book encryption needs responsibility.
- If the book is lost, your seed phrase is gone forever
- If the book is a very common one, a dedicated thief might guess it
- If your handwriting is unclear, you may mix up numbers later
- If pages get torn or changed, coordinates may shift
So think of it like a homemade safe: clever but requires care.
A More Secure Variation
If you want to add a little spice, use two books.
Example:
- The first number points to a page in Book A
- The next two numbers point to a line and word in Book B
Or choose your own pattern.
This confuses attackers even more. Now they need two keys, not one.
The beauty of book encryption is that it transforms your seed phrase into something completely unrecognizable. Once your words become page numbers, line numbers, and word positions, nobody looking at them can guess what they represent. To an outsider, your seed phrase no longer looks like a seed phrase. It looks like random coordinates, harmless scribbles, or a personal reminder.
That means you can store those numbers however you want without fear. You can keep them in a notebook, save them inside a password manager, write them on a small card, or even tuck them somewhere ordinary in your home. Even if someone stumbles upon the numbers or a system gets hacked, they won’t know what the numbers point to. Without your chosen book – the “key” that only you know – the coordinates are meaningless.
Book encryption gives you something rare in crypto security: peace of mind. You’re no longer hiding sensitive words directly; you’re hiding clues that only make sense to you. Even in a worst-case scenario, you remain protected because the real magic – the book itself – lives safely under your control.















