gjp -> encryption, xor, level db boilerplate

src/helpers/encryption.rs

@@ -0,0 +1,28 @@
+use sha::sha1::Sha1;
+use sha::utils::{Digest, DigestExt};
+
+use password_auth::generate_hash;
+
+pub fn cyclic_xor(data: &[u8], key: &[u8]) -> Vec<u8> {
+    data.iter()
+        .zip(key.iter().cycle())
+        .map(|(&byte, &key_byte)| byte ^ key_byte)
+        .collect()
+}
+
+pub fn cyclic_xor_string(string: &str, key: &str) -> String {
+    let data = string.as_bytes();
+    let key_bytes = key.as_bytes();
+    let result_bytes = cyclic_xor(data, key_bytes);
+    let result_str = String::from_utf8(result_bytes).expect("invalid UTF-8 sequence (L)");
+
+    return String::from(result_str);
+}
+
+pub fn get_gjp2(password: String) -> String {
+    return Sha1::default().digest(String::from(password + "mI29fmAnxgTs").as_bytes()).to_hex();
+}
+
+pub fn get_gjp2_hashed(password: String) -> String {
+    return generate_hash(get_gjp2(password))
+}