various API uniformization

rlwe/src/parameters.rs

@@ -0,0 +1,61 @@
+use base2k::module::{MODULETYPE, Module};
+
+pub struct ParametersLiteral {
+    pub log_n: usize,
+    pub log_q: usize,
+    pub log_p: usize,
+    pub log_base2k: usize,
+    pub log_scale: usize,
+    pub xe: f64,
+    pub xs: usize,
+}
+
+pub struct Parameters {
+    log_n: usize,
+    log_q: usize,
+    log_p: usize,
+    log_scale: usize,
+    log_base2k: usize,
+    xe: f64,
+    xs: usize,
+    module: Module,
+}
+
+impl Parameters {
+    pub fn new<const MTYPE: MODULETYPE>(p: &ParametersLiteral) -> Self {
+        assert!(
+            p.log_n + 2 * p.log_base2k <= 53,
+            "invalid parameters: p.log_n + 2*p.log_base2k > 53"
+        );
+        Self {
+            log_n: p.log_n,
+            log_q: p.log_q,
+            log_p: p.log_p,
+            log_scale: p.log_scale,
+            log_base2k: p.log_base2k,
+            xe: p.xe,
+            xs: p.xs,
+            module: Module::new::<MTYPE>(1 << p.log_n),
+        }
+    }
+
+    pub fn n(&self) -> usize {
+        1 << self.log_n
+    }
+
+    pub fn log_scale(&self) -> usize {
+        self.log_scale
+    }
+
+    pub fn log_q(&self) -> usize {
+        self.log_q
+    }
+
+    pub fn log_p(&self) -> usize {
+        self.log_p
+    }
+
+    pub fn log_base2k(&self) -> usize {
+        self.log_base2k
+    }
+}