Thanks for the suggestion but that doesn't help if my copy of electrum is compromised. The program might ignore the entropy I provide and make a predictable seed instead.
I'm looking for a way like I described in my first post where you don't even need to use a computer to generate the seed (use the physical world only).
Got it.
You can actually use the same method as in the first post you referenced, with a few small changes.
1. Use at least 13 words (more is OK too).
2. Enter the result into Electrum 2.x to see if the result is valid (via a wallet restore). If it's invalid, the button to continue will be grayed out.
3. Use one of these two methods to modify your seed, and return to step 2 to see if it's valid:
- Add a 1 digit to the end (with or without a space, doesn't matter), or increment that digit.
- Re-roll the last word.
On average, you need to perform step 3 about 130 times before before you end up with a valid Electrum 2.x seed, however it's possible that you could need fewer or many more. For example, there's about a 14% chance you'll need to do step 3 500 or more times....
Also, be sure to take note of my response in that other thread, which remains important for generating an Electrum 2.x seed:
you need a deterministic way to decide which die is #1, which is #2, etc. For example, you could roll them each one at a time, or you could use six different colored dice with each color always representing the same die #, or you could just always read the dice from left-most to right-most however they happen to fall (easy to do objectively if you have
Travel Yahtzee). If you don't have some such deterministic method, you will almost certainly introduce bias as you read off the dice in your own personal order.
