initial commit

tests/symmetric_test/src/decrypted.docx

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+this is test document for validating the CAS-LIB implemention and provide the examples usecases for the users

tests/symmetric_test/src/encrypted.docx

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tests/symmetric_test/src/main.rs

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+use std::{fs::{File}, io::Write, path::Path};
+
+use cas_lib::symmetric::{aes::CASAES256, cas_symmetric_encryption::CASAESEncryption};
+
+fn main() {
+    let path = Path::new("./../../test.docx");
+    let file_bytes: Vec<u8> = std::fs::read(path).unwrap();
+    let aes_nonce = <CASAES256 as CASAESEncryption>::generate_nonce();
+    let aes_key = <CASAES256 as CASAESEncryption>::generate_key();
+    let encrypted_bytes = <CASAES256 as CASAESEncryption>::encrypt_plaintext(aes_key.clone(), aes_nonce.clone(), file_bytes);
+    let mut file =  File::create("encrypted.docx").unwrap();
+    file.write_all(&encrypted_bytes);
+
+    let path = Path::new("encrypted.docx");
+    let file_bytes: Vec<u8> = std::fs::read(path).unwrap();
+    let decrypted_bytes = <CASAES256 as CASAESEncryption>::decrypt_ciphertext(aes_key, aes_nonce, file_bytes);
+    let mut file =  File::create("decrypted.docx").unwrap();
+    file.write_all(&decrypted_bytes);
+}

tests/test.docx

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+This is a sample document.
+It contains several lines of text.
+We will use this document to demonstrate signing and verifying using RSA encryption.