I am trying to understand Threshold concept in multi-sig scenario. here And this is the example I am looking at. You fully control an expense account , but you want your two coworkers Diyuan and Emil to be able to authorize transactions from this account. You add Diyuan and Emil’s signing keys to the expense account. If either Diyuan or Emil leave the company, you can remove their signing key, a high-threshold operation. You fully control : You are the most powerful among all of them which means that Mw value should be greater than all of 2 - this could be either 2 or 3 two coworkers & able to authorize : Medium threshold operation - which means M will be 0 You add Diyuan and Emil’s signing keys : High threshold operation - which only You can do - which means Mw > 1 :- 2 or 3 and H should be either 2 or 3 you can remove their : same as above My question is why can't the value of Masker key is 2 ? why it is 3? can this be right solution? Mw | L | M | H | Dw | Ew --- | --- | --- | --- |--- |--- | 2 | 0 | 0 | 2 | 1 | 1

Vishwas1 A signer is an ed25519 keypair, or is a sha256 hash, or is a transaction hash. An account has one or more signers, each with its own signing weight. has a list of thresholds of signing weights needed to be reached, one for each operation category, before an operation is deemed successfully signed for. An operation has a source account, which is the account that has to sign off of it. has a pre-defined threshold category. A transaction has one or more operations. also has a source account, which is taken as the source account for operations that don't override it. This also happens to be the account whose sequence number is incremented, and that pays for the transaction fees.

Understanding threshold in multi-sig

Vishwas1

I am trying to understand Threshold concept in multi-sig scenario. here

And this is the example I am looking at.

You fully control an expense account, but you want your two coworkers Diyuan and Emil to be able to authorize transactions from this account. You add Diyuan and Emil’s signing keys to the expense account. If either Diyuan or Emil leave the company, you can remove their signing key, a high-threshold operation.

You fully control : You are the most powerful among all of them which means that Mw value should be greater than all of 2 - this could be either 2 or 3
two coworkers & able to authorize : Medium threshold operation - which means M will be 0
You add Diyuan and Emil’s signing keys : High threshold operation - which only You can do - which means Mw > 1 :- 2 or 3 and H should be either 2 or 3
you can remove their : same as above

My question is why can't the value of Masker key is 2 ? why it is 3?

can this be right solution?

Mw | L | M | H | Dw | Ew

--- | --- | --- | --- |--- |--- |
2 | 0 | 0 | 2 | 1 | 1

dzham

Vishwas1

If if was two, Diyuan and Emil could sign a transaction removing you

Vishwas1

dzham Sorry dont get you. Still mine vote (2) is greater than Diyuan's and Emil's which is 1. no?

I am not able to understand the concept of Threshold properly, I guess... it looks like, an account has threshold, an operation can have threshold and a transaction can also have threshold?

Vishwas1

dzham Oh thank you got it bro. ? You meant that, in that case, Diyuan and Emil would be enough for the transactions (as then total vote is 2)

dzham

Vishwas1

A signer
- is an ed25519 keypair, or
- is a sha256 hash, or
- is a transaction hash.
An account
- has one or more signers, each with its own signing weight.
- has a list of thresholds of signing weights needed to be reached, one for each operation category, before an operation is deemed successfully signed for.
An operation
- has a source account, which is the account that has to sign off of it.
- has a pre-defined threshold category.
A transaction
- has one or more operations.
- also has a source account, which is taken as the source account for operations that don't override it.
  This also happens to be the account whose sequence number is incremented, and that pays for the transaction fees.