-
Notifications
You must be signed in to change notification settings - Fork 91
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Signature verification is required by the consensus protocol to validate peer messages
- Loading branch information
Showing
7 changed files
with
432 additions
and
194 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,129 @@ | ||
| use crate::Hasher; | ||
|
|
||
| pub use fuel_types::Bytes32; | ||
|
|
||
| use core::fmt; | ||
| use core::ops::Deref; | ||
|
|
||
| /// Normalized signature message | ||
| #[derive(Default, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)] | ||
| #[cfg_attr( | ||
| feature = "serde-types-minimal", | ||
| derive(serde::Serialize, serde::Deserialize) | ||
| )] | ||
| #[repr(transparent)] | ||
| pub struct Message(Bytes32); | ||
|
|
||
| impl Message { | ||
| /// Memory length of the type | ||
| pub const LEN: usize = Bytes32::LEN; | ||
|
|
||
| /// Normalize a message for signature | ||
| pub fn new<M>(message: M) -> Self | ||
| where | ||
| M: AsRef<[u8]>, | ||
| { | ||
| Self(Hasher::hash(message)) | ||
| } | ||
|
|
||
| /// Add a conversion from arbitrary slices into owned | ||
| /// | ||
| /// # Safety | ||
| /// | ||
| /// There is no guarantee the provided bytes will be the product of a cryptographically secure | ||
| /// hash. Using insecure messages might compromise the security of the signature. | ||
| pub unsafe fn from_bytes_unchecked(bytes: [u8; Self::LEN]) -> Self { | ||
| Self(bytes.into()) | ||
| } | ||
|
|
||
| /// Add a conversion from arbitrary slices into owned | ||
| /// | ||
| /// # Safety | ||
| /// | ||
| /// This function will not panic if the length of the slice is smaller than | ||
| /// `Self::LEN`. Instead, it will cause undefined behavior and read random | ||
| /// disowned bytes. | ||
| /// | ||
| /// This function extends the unsafety of [`Self::from_bytes_unchecked`]. | ||
| pub unsafe fn from_slice_unchecked(bytes: &[u8]) -> Self { | ||
| Self(Bytes32::from_slice_unchecked(bytes)) | ||
| } | ||
|
|
||
| /// Copy-free reference cast | ||
| /// | ||
| /// # Safety | ||
| /// | ||
| /// Inputs smaller than `Self::LEN` will cause undefined behavior. | ||
| /// | ||
| /// This function extends the unsafety of [`Self::from_bytes_unchecked`]. | ||
| pub unsafe fn as_ref_unchecked(bytes: &[u8]) -> &Self { | ||
| // The interpreter will frequently make references to keys and values using | ||
| // logically checked slices. | ||
| // | ||
| // This function will avoid unnecessary copy to owned slices for the interpreter | ||
| // access | ||
| &*(bytes.as_ptr() as *const Self) | ||
| } | ||
| } | ||
|
|
||
| impl Deref for Message { | ||
| type Target = [u8; Message::LEN]; | ||
|
|
||
| fn deref(&self) -> &[u8; Message::LEN] { | ||
| self.0.deref() | ||
| } | ||
| } | ||
|
|
||
| impl AsRef<[u8]> for Message { | ||
| fn as_ref(&self) -> &[u8] { | ||
| self.0.as_ref() | ||
| } | ||
| } | ||
|
|
||
| impl From<Message> for [u8; Message::LEN] { | ||
| fn from(message: Message) -> [u8; Message::LEN] { | ||
| message.0.into() | ||
| } | ||
| } | ||
|
|
||
| impl fmt::LowerHex for Message { | ||
| fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { | ||
| self.0.fmt(f) | ||
| } | ||
| } | ||
|
|
||
| impl fmt::UpperHex for Message { | ||
| fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { | ||
| self.0.fmt(f) | ||
| } | ||
| } | ||
|
|
||
| impl fmt::Debug for Message { | ||
| fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { | ||
| self.0.fmt(f) | ||
| } | ||
| } | ||
|
|
||
| impl fmt::Display for Message { | ||
| fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { | ||
| self.0.fmt(f) | ||
| } | ||
| } | ||
|
|
||
| #[cfg(feature = "std")] | ||
| mod use_std { | ||
| use crate::Message; | ||
|
|
||
| use secp256k1::Message as Secp256k1Message; | ||
|
|
||
| impl Message { | ||
| pub(crate) fn to_secp(&self) -> Secp256k1Message { | ||
| // The only validation performed by `Message::from_slice` is to check if it is | ||
| // 32 bytes. This validation exists to prevent users from signing | ||
| // non-hashed messages, which is a severe violation of the protocol | ||
| // security. | ||
| debug_assert_eq!(Self::LEN, secp256k1::constants::MESSAGE_SIZE); | ||
| Secp256k1Message::from_slice(self.as_ref()).expect("Unreachable error") | ||
| } | ||
| } | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.