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DemiMarie-parity
81d8a5d01d
* Initial work on exposing pre-runtime digests
This provides the primitive API, as well as exposing it from BABE.
* Initial work on using pre-digests in runtimes
This includes both code to expose them from `srml_system`, as well as
using it in (currently dead) code in `srml_babe`.
* Bump `{spec,impl}_version`
* Add `u64_backend` feature to curve25519-dalek
Otherwise, it errors out at compile-time.
* Bump `Cargo.lock`
* Do not depend on the schnorrkel crate in the runtime
The schnorrkel crate does not work on `#![no_std]`, but the runtime only
needs constants from it. This adds our own definitions of those
constants, and checks them for correctness at compile-time.
* Actually implement storage of VRF outputs
* Trivial formatting change
* Provide a `hash_randomness` function in BABE
for processing VRF outputs.
* Implement a basic randomness generating function
It just XORs the VRF outputs together.
* Actually implement on-chain randomness
Blake2b is used for hashing.
* Update dependencies
* Run `cargo update` where needed
* Re-add a newline at EOF
* Remove broken and unsafe code
XOR is not a hash function, and must not be used as such. The
implementation was also needlessly unsafe.
* Run `cargo update` where needed
* Remove spurious dependency
* Document security guarantees of BABE randomness
* Add a `RandomnessBeacon` trait
* Document `RandomnessBeacon::random`
* Fix silly compile error (unexpected type arguments)
* Fix BABE randomness
* Implement `FindAuthor` for `babe::Module`
* Apply suggestions from code review
Co-Authored-By: Bastian Köcher <bkchr@users.noreply.github.com>
Co-Authored-By: Robert Habermeier <rphmeier@gmail.com>
* Respond to suggestions from code review and fix bugs
* Store an authority index, not the authority itself.
* Avoid unnecessary decoding.
* Implement relative slots and BABE randomness fully and correctly.
* Remove spurious dependency
* Fix error reported by rust-analyzer
* Update Cargo.lock files
* `wrapping_add` → `checked_add`
The epoch index will not overflow. Panic if it does.
* Move randomness documentation to trait
* Fix compile error in test suite
* Explain 2^64 limit
Co-Authored-By: Robert Habermeier <rphmeier@gmail.com>
= Subkey Subkey is a commandline utility included with Substrate that generates or restores Substrate keys. `subkey` will use the http://wiki.polkadot.network/en/latest/polkadot/learn/cryptography/#keypairs-and-signing[sr25519] cryptography by default. If you need to use the older ed25519 cryptography to generate or restore your key pass the `--ed25519` flag to any of the commands. == Usage === Generate a random account ```bash subkey generate ``` Will output a mnemonic phrase and give you the seed, public key, and address of a new account. DO NOT SHARE your mnemonic or seed with ANYONE it will give them access to your funds. If someone is making a transfer to you they will only need your **Address**. === Inspecting a key You can inspect a given URI (mnemonic, seed, public key, or address) and recover the public key and the address. ```bash subkey inspect <mnemonic,seed,pubkey,address> OUTPUT: Public key (hex): 0x461edcf1ba99e43f50dec4bdeb3d1a2cf521ad7c3cd0eeee5cd3314e50fd424c Address (SS58): 5DeeNqcAcaHDSed2HYnqMDK7JHcvxZ5QUE9EKmjc5snvU6wF ``` === Signing `subkey` expects a message to come in on STDIN, one way to sign a message would look like this: ```bash echo <msg> | subkey sign <seed,mnemonic> OUTPUT: a69da4a6ccbf81dbbbfad235fa12cf8528c18012b991ae89214de8d20d29c1280576ced6eb38b7406d1b7e03231df6dd4a5257546ddad13259356e1c3adfb509 ``` === Verifying a signature ```bash echo <msg> | subkey verify <sig> <address> OUTPUT: Signature verifies correctly. ``` === Using the vanity generator You can use the included vanity generator to find a seed that provides an address which includes the desired pattern. Be warned, depending on your hardware this may take a while. ```bash subkey vanity 1337 ``` === Signing a transaction Sign a transaction from an encoded `Call`. ```bash subkey sign-transaction \ --call <call-as-hex> \ --nonce 0 \ --suri <secret-uri> \ --password <password> \ --prior-block-hash <prior-block-hash-as-hex> ``` Will output a signed and encoded `UncheckedMortalCompactExtrinsic` as hex.