fork of https://github.com/poanetwork/threshold_crypto for the needs of nextgraph.org
A pairing-based threshold cryptosystem for collaborative decryption and signatures.
The `threshold_crypto` crate provides cryptographic keys with methods for signing and encrypting messages, as well as key sets for _threshold_ signatures and threshold encryption.
@ -24,7 +26,7 @@ An [official security audit](https://github.com/poanetwork/wiki/wiki/Threshold-C
```toml
[dependencies]
threshold_crypto = { version = "0.4", git = "https://github.com/poanetwork/threshold_crypto" }
threshold_crypto = { version = "0.4", git = "https://git.nextgraph.org/NextGraph/threshold_crypto" }
```
`main.rs`:
@ -74,13 +76,14 @@ test.
## Application Details
The basic usage outline is:
* choose a threshold value `t`
* create a key set
* distribute `N` secret key shares among the participants
* publish the public master key
- choose a threshold value `t`
- create a key set
- distribute `N` secret key shares among the participants
- publish the public master key
A third party can now encrypt a message to the public master key
and any set of `t + 1` participants *(but no fewer!)* can collaborate to
and any set of `t + 1` participants _(but no fewer!)_ can collaborate to
decrypt it. Also, any set of `t + 1` participants can collaborate to sign a message,
producing a signature that is verifiable with the public master key.
@ -90,9 +93,9 @@ signatures for the same message, produced by two different sets of `t + 1`
secret key share holders, both signatures will be valid AND
equal. This is useful in some applications, for example a message signature can serve as a pseudorandom number unknown to anyone until `t + 1` participants agree to reveal it.
In its simplest form, threshold_crypto requires a trusted dealer to
produce and distribute the secret key shares. However, keys can be produced so that only the corresponding participant knows their secret in the end. This crate
includes the basic tools to implement such a *Distributed Key Generation*
In its simplest form, threshold*crypto requires a trusted dealer to
produce and distribute the secret key shares. However, keys can be produced so that only the corresponding participant knows their secret in the end. This crate
includes the basic tools to implement such a \_Distributed Key Generation*
scheme.
A major application for this library is within a distributed network that
@ -102,8 +105,8 @@ by third-parties as representing the consensus of the network.
