Add external padding, pad_to structure

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "libpep"
 edition = "2021"
-version = "0.11.1"
+version = "0.12.0"
 authors = ["Bernard van Gastel <bvgastel@bitpowder.com>", "Job Doesburg <job@jobdoesburg.nl>"]
 homepage = "https://github.com/NOLAI/libpep"
 repository = "https://github.com/NOLAI/libpep"

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@nolai/libpep-wasm",
-  "version": "0.11.1",
+  "version": "0.12.0",
   "description": "Library for polymorphic encryption and pseudonymization (in WASM)",
   "repository": {
     "type": "git",

src/lib/client/batch.rs

@@ -1,6 +1,6 @@
 //! Batch operations for encryption and decryption.
 
-use crate::data::traits::{Encryptable, Encrypted};
+use crate::data::traits::{BatchEncryptable, Encryptable, Encrypted};
 use crate::transcryptor::batch::BatchError;
 use rand_core::{CryptoRng, Rng};
 
@@ -17,6 +17,23 @@ pub fn encrypt_batch<M, R>(
     public_key: &M::PublicKeyType,
     rng: &mut R,
 ) -> Result<Vec<M::EncryptedType>, BatchError>
+where
+    M: BatchEncryptable,
+    R: Rng + CryptoRng,
+{
+    let preprocessed = M::preprocess_batch(messages)?;
+    Ok(preprocessed
+        .iter()
+        .map(|x| x.encrypt(public_key, rng))
+        .collect())
+}
+
+#[cfg(feature = "insecure")]
+pub fn encrypt_batch_raw<M, R>(
+    messages: &[M],
+    public_key: &M::PublicKeyType,
+    rng: &mut R,
+) -> Result<Vec<M::EncryptedType>, BatchError>
 where
     M: Encryptable,
     R: Rng + CryptoRng,

src/lib/client/functions.rs

@@ -40,7 +40,8 @@ where
 /// # Examples
 /// ```rust,ignore
 /// let pseudonym = decrypt(&encrypted_pseudonym, &pseudonym_key);
-/// let attribute = decrypt(&encrypted_attribute, &attribute_key);
+/// let attribute = decrypt(&encrypted_attribute,
+/// &attribute_key);
 /// ```
 #[cfg(not(feature = "elgamal3"))]
 pub fn decrypt<E>(encrypted: &E, secret_key: &E::SecretKeyType) -> E::UnencryptedType