Add save and load helpers

Cargo.toml

@@ -11,7 +11,7 @@ readme = "README.md"
 
 [features]
 progress_bar = ["dep:indicatif"]
-quicklog = ["dep:thiserror"]
+quicklog = []
 
 [dependencies]
 serde_json = "1.0.132"
@@ -22,7 +22,7 @@ rayon = "1.10.0"
 indicatif = { version = "0.17.8", optional = true }
 ndarray-npy ="0.9.1"
 itertools = "0.13.0"
-thiserror = { version = "1.0.58", optional = true }
+thiserror = { version = "1.0.58" }
 dtw = { git = "https://github.com/Ledger-Donjon/dtw.git", rev = "0f8d7ec3bbdf2ca4ec8ea35feddb8d1db73e7d54" }
 num-traits = "0.2.19"
 serde = { version = "1.0.214", features = ["derive"] }

src/distinguishers/cpa.rs

@@ -1,11 +1,14 @@
-use crate::util::{argmax_by, argsort_by, max_per_row};
+use crate::{
+    util::{argmax_by, argsort_by, max_per_row},
+    Error,
+};
 use ndarray::{s, Array1, Array2, ArrayView1, ArrayView2, Axis};
 use rayon::{
     iter::ParallelBridge,
     prelude::{IntoParallelIterator, ParallelIterator},
 };
 use serde::{Deserialize, Serialize};
-use std::{iter::zip, ops::Add};
+use std::{fs::File, iter::zip, ops::Add, path::Path};
 
 /// Compute the [`Cpa`] of the given traces using [`CpaProcessor`].
 ///
@@ -244,6 +247,30 @@ where
         a.dot(&b)
     }
 
+    /// Save the [`CpaProcessor`] to a file.
+    ///
+    /// # Warning
+    /// The file format is not stable as muscat is active development. Thus, the format might
+    /// change between versions.
+    pub fn save<P: AsRef<Path>>(&self, path: P) -> Result<(), Error> {
+        let file = File::create(path)?;
+        serde_json::to_writer(file, &CpaProcessorSerdeAdapter::from(self))?;
+
+        Ok(())
+    }
+
+    /// Load a [`CpaProcessor`] from a file.
+    ///
+    /// # Warning
+    /// The file format is not stable as muscat is active development. Thus, the format might
+    /// change between versions.
+    pub fn load<P: AsRef<Path>>(path: P, leakage_func: F) -> Result<Self, Error> {
+        let file = File::open(path)?;
+        let p: CpaProcessorSerdeAdapter = serde_json::from_reader(file)?;
+
+        Ok(p.with(leakage_func))
+    }
+
     /// Determine if two [`CpaProcessor`] are compatible for addition.
     ///
     /// If they were created with the same parameters, they are compatible.

src/distinguishers/cpa_normal.rs

@@ -1,9 +1,9 @@
 use ndarray::{Array1, Array2, ArrayView1, ArrayView2, Axis};
 use rayon::iter::{ParallelBridge, ParallelIterator};
 use serde::{Deserialize, Serialize};
-use std::{iter::zip, ops::Add};
+use std::{fs::File, iter::zip, ops::Add, path::Path};
 
-use crate::distinguishers::cpa::Cpa;
+use crate::{distinguishers::cpa::Cpa, Error};
 
 /// Compute the [`Cpa`] of the given traces using [`CpaProcessor`].
 ///
@@ -203,6 +203,30 @@ where
         Cpa { corr }
     }
 
+    /// Save the [`CpaProcessor`] to a file.
+    ///
+    /// # Warning
+    /// The file format is not stable as muscat is active development. Thus, the format might
+    /// change between versions.
+    pub fn save<P: AsRef<Path>>(&self, path: P) -> Result<(), Error> {
+        let file = File::create(path)?;
+        serde_json::to_writer(file, &CpaProcessorSerdeAdapter::from(self))?;
+
+        Ok(())
+    }
+
+    /// Load a [`CpaProcessor`] from a file.
+    ///
+    /// # Warning
+    /// The file format is not stable as muscat is active development. Thus, the format might
+    /// change between versions.
+    pub fn load<P: AsRef<Path>>(path: P, leakage_func: F) -> Result<Self, Error> {
+        let file = File::open(path)?;
+        let p: CpaProcessorSerdeAdapter = serde_json::from_reader(file)?;
+
+        Ok(p.with(leakage_func))
+    }
+
     /// Determine if two [`CpaProcessor`] are compatible for addition.
     ///
     /// If they were created with the same parameters, they are compatible.

src/distinguishers/dpa.rs

@@ -1,9 +1,12 @@
 use ndarray::{Array1, Array2, ArrayView1, ArrayView2, Axis};
 use rayon::iter::{ParallelBridge, ParallelIterator};
 use serde::{Deserialize, Serialize};
-use std::{iter::zip, marker::PhantomData, ops::Add};
+use std::{fs::File, iter::zip, marker::PhantomData, ops::Add, path::Path};
 
-use crate::util::{argmax_by, argsort_by, max_per_row};
+use crate::{
+    util::{argmax_by, argsort_by, max_per_row},
+    Error,
+};
 
 /// Compute the [`Dpa`] of the given traces using [`DpaProcessor`].
 ///
@@ -206,6 +209,30 @@ where
         }
     }
 
+    /// Save the [`DpaProcessor`] to a file.
+    ///
+    /// # Warning
+    /// The file format is not stable as muscat is active development. Thus, the format might
+    /// change between versions.
+    pub fn save<P: AsRef<Path>>(&self, path: P) -> Result<(), Error> {
+        let file = File::create(path)?;
+        serde_json::to_writer(file, &DpaProcessorSerdeAdapter::from(self))?;
+
+        Ok(())
+    }
+
+    /// Load a [`DpaProcessor`] from a file.
+    ///
+    /// # Warning
+    /// The file format is not stable as muscat is active development. Thus, the format might
+    /// change between versions.
+    pub fn load<P: AsRef<Path>>(path: P, selection_function: F) -> Result<Self, Error> {
+        let file = File::open(path)?;
+        let p: DpaProcessorSerdeAdapter = serde_json::from_reader(file)?;
+
+        Ok(p.with(selection_function))
+    }
+
     /// Determine if two [`DpaProcessor`] are compatible for addition.
     ///
     /// If they were created with the same parameters, they are compatible.

src/error.rs

@@ -0,0 +1,10 @@
+use std::io;
+use thiserror::Error;
+
+#[derive(Debug, Error)]
+pub enum Error {
+    #[error("Failed to save/load muscat data")]
+    SaveLoadError(#[from] serde_json::Error),
+    #[error(transparent)]
+    IoError(#[from] io::Error),
+}

src/leakage_detection.rs

@@ -1,9 +1,9 @@
 //! Leakage detection methods
-use crate::processors::MeanVar;
+use crate::{processors::MeanVar, Error};
 use ndarray::{s, Array1, Array2, ArrayView1, ArrayView2, Axis};
 use rayon::iter::{ParallelBridge, ParallelIterator};
 use serde::{Deserialize, Serialize};
-use std::{iter::zip, ops::Add};
+use std::{fs::File, iter::zip, ops::Add, path::Path};
 
 /// Compute the SNR of the given traces using [`SnrProcessor`].
 ///
@@ -150,6 +150,30 @@ impl SnrProcessor {
         self.classes_count.len()
     }
 
+    /// Save the [`SnrProcessor`] to a file.
+    ///
+    /// # Warning
+    /// The file format is not stable as muscat is active development. Thus, the format might
+    /// change between versions.
+    pub fn save<P: AsRef<Path>>(&self, path: P) -> Result<(), Error> {
+        let file = File::create(path)?;
+        serde_json::to_writer(file, self)?;
+
+        Ok(())
+    }
+
+    /// Load a [`SnrProcessor`] from a file.
+    ///
+    /// # Warning
+    /// The file format is not stable as muscat is active development. Thus, the format might
+    /// change between versions.
+    pub fn load<P: AsRef<Path>>(path: P) -> Result<Self, Error> {
+        let file = File::open(path)?;
+        let p = serde_json::from_reader(file)?;
+
+        Ok(p)
+    }
+
     /// Determine if two [`SnrProcessor`] are compatible for addition.
     ///
     /// If they were created with the same parameters, they are compatible.
@@ -289,6 +313,30 @@ impl TTestProcessor {
         self.mean_var_1.size()
     }
 
+    /// Save the [`TTestProcessor`] to a file.
+    ///
+    /// # Warning
+    /// The file format is not stable as muscat is active development. Thus, the format might
+    /// change between versions.
+    pub fn save<P: AsRef<Path>>(&self, path: P) -> Result<(), Error> {
+        let file = File::create(path)?;
+        serde_json::to_writer(file, self)?;
+
+        Ok(())
+    }
+
+    /// Load a [`TTestProcessor`] from a file.
+    ///
+    /// # Warning
+    /// The file format is not stable as muscat is active development. Thus, the format might
+    /// change between versions.
+    pub fn load<P: AsRef<Path>>(path: P) -> Result<Self, Error> {
+        let file = File::open(path)?;
+        let p = serde_json::from_reader(file)?;
+
+        Ok(p)
+    }
+
     /// Determine if two [`TTestProcessor`] are compatible for addition.
     ///
     /// If they were created with the same parameters, they are compatible.

src/lib.rs

@@ -1,10 +1,13 @@
 pub mod distinguishers;
+pub mod error;
 pub mod leakage_detection;
 pub mod leakage_model;
 pub mod preprocessors;
 pub mod processors;
 pub mod trace;
 pub mod util;
 
+pub use crate::error::Error;
+
 #[cfg(feature = "quicklog")]
 pub mod quicklog;