Support BigUint plaintext moduli in BFV #358

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Merged

tlepoint merged 10 commits into main from biguint-plaintext-modulus-4494186955965380558

Feb 1, 2026

.github/workflows/lint-fmt.yml

-Original file line number
+Diff line change
@@ Expand Up / @@ -20,7 +20,7 @@ jobs: @@
           - uses: actions-rs/toolchain@v1
             with:
               profile: minimal
-              toolchain: nightly
+              toolchain: stable
               override: true
               components: rustfmt
           - uses: actions-rs/cargo@v1
@@ Expand All / @@ -35,13 +35,15 @@ jobs: @@
           CARGO_TERM_COLOR: always
         runs-on: ubuntu-latest
         steps:
-          - uses: actions/checkout@v6
+          - name: Install protoc
+            run: sudo apt-get update && sudo apt-get install -y protobuf-compiler libprotobuf-dev
           - uses: actions-rs/toolchain@v1
             with:
               profile: minimal
               toolchain: stable
               override: true
               components: clippy
+          - uses: actions/checkout@v6
           - uses: actions-rs/cargo@v1
             with:
               command: clippy
@@ Expand Down @@

.github/workflows/rust.yml

-Original file line number
+Diff line change
@@ Expand Up / @@ -21,12 +21,14 @@ jobs: @@
           CARGO_TERM_COLOR: always
         runs-on: ubuntu-latest
         steps:
-          - uses: actions/checkout@v6
+          - name: Install protoc
+            run: sudo apt-get update && sudo apt-get install -y protobuf-compiler libprotobuf-dev
           - uses: actions-rs/toolchain@v1
             with:
               profile: minimal
               toolchain: stable
               override: true
+          - uses: actions/checkout@v6
           - uses: actions-rs/cargo@v1
             with:
               command: check
@@ Expand All / @@ -38,12 +40,14 @@ jobs: @@
           CARGO_TERM_COLOR: always
         runs-on: ubuntu-latest
         steps:
-          - uses: actions/checkout@v6
+          - name: Install protoc
+            run: sudo apt-get update && sudo apt-get install -y protobuf-compiler libprotobuf-dev
           - uses: actions-rs/toolchain@v1
             with:
               profile: minimal
               toolchain: stable
               override: true
+          - uses: actions/checkout@v6
           - uses: actions-rs/cargo@v1
             with:
               command: test

Cargo.lock

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Cargo.toml

            
                      Original file line number
                      Diff line number
                      Diff line change
                  
    @@ -21,22 +21,22 @@ tfhe-ntt = "^0.7.0"
  
    console = "^0.16.2"

    criterion = "^0.8.1"

    doc-comment = "^0.3.4"

    env_logger = "^0.11.3"

    ethnum = "^1.5.0"

    env_logger = "^0.11.8"

    ethnum = "^1.5.2"

    indicatif = "^0.18.3"

    itertools = "^0.14.0"

    log = "^0.4.29"

    ndarray = "^0.17.2"

    num-bigint = "^0.4.4"

    num-bigint = "^0.4.6"

    num-bigint-dig = "^0.9.1"

    num-traits = "^0.2.18"

    num-complex = { version = "^0.4.6", features = ["libm"] }

    num-traits = "^0.2.19"

    proptest = "^1.9.0"

    prost = "^0.14.3"

    prost-build = "^0.14.3"

    pulp = "^0.22.2"

    rand = "^0.9.2"

    rand_chacha = "^0.9.0"

    sha2 = "^0.10.8"

    sha2 = "^0.10.9"

    thiserror = "^2.0.18"

    zeroize = "^1.8.2"

    zeroize_derive = "^1.4.3"

README.md

            
                      Original file line number
                      Diff line number
                      Diff line change
                  
    @@ -28,8 +28,8 @@ To install, add the following to your project's `Cargo.toml` file:
  
    ```toml

    [dependencies]

    fhe = "0.1.1"

    fhe-traits = "0.1.1"

    fhe = "0.2"

    fhe-traits = "0.2"

    ```

    ## Minimum supported version / toolchain

crates/fhe-math/Cargo.toml

-Original file line number
+Diff line change
@@ Expand Up / @@ -6,7 +6,7 @@ edition.workspace = true @@
     license.workspace = true
     repository.workspace = true
     rust-version.workspace = true
-    version = "0.1.1"
+    version = "0.2.0"
     [lints]
     workspace = true
@@ Expand All / @@ -21,8 +21,8 @@ tfhe-ntt = [] @@
     fhe-traits = { version = "=0.1.1", path = "../fhe-traits" }
     fhe-util = { version = "=0.1.1", path = "../fhe-util" }
-    tfhe-ntt.workspace = true
     ethnum.workspace = true
+    tfhe-ntt.workspace = true
     itertools.workspace = true
     ndarray.workspace = true
     num-bigint.workspace = true
@@ Expand All / @@ -35,12 +35,14 @@ rand_chacha.workspace = true @@
     thiserror.workspace = true
     zeroize.workspace = true
     sha2.workspace = true
-    num-complex.workspace = true
     [dev-dependencies]
     criterion.workspace = true
     proptest.workspace = true
+    [build-dependencies]
+    prost-build.workspace = true
     [[bench]]
     name = "zq"
     harness = false
@@ Expand Down @@

crates/fhe-math/README.md

-Original file line number
+Diff line change
@@ Expand Up / @@ -15,7 +15,7 @@ Add the following to your `Cargo.toml`: @@
     ```toml
     [dependencies]
-    fhe-math = "0.1.1"
+    fhe-math = "0.2.0"
     ```
     ## Testing
@@ Expand Down @@

crates/fhe-math/build.rs

-Original file line number
+Diff line change
@@ -0,0 +1,12 @@
+    #![allow(missing_docs)]
+    fn main() -> Result<(), Box<dyn std::error::Error>> {
+        let proto_path = "src/proto/rq.proto";
+        let proto_dir = "src/proto";
+        println!("cargo:rerun-if-changed={proto_path}");
+        let mut config = prost_build::Config::new();
+        config.compile_protos(&[proto_path], &[proto_dir])?;
+        Ok(())
+    }

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