feat: initial sea128 encrypt is working

src/tasks/tasks01/sea128.rs

@@ -0,0 +1,59 @@
+use anyhow::Result;
+use base64::prelude::*;
+use openssl::symm::{Cipher, Crypter, Mode};
+use serde_json::Value;
+
+use crate::utils::poly::b64_2_num;
+
+pub fn sea128(args: &Value) -> Result<String> {
+    let key_string: String = serde_json::from_value(args["key"].clone())?;
+    //let key: &[u8] = b64_2_num(key_string)?.to_ne_bytes();
+    let key = BASE64_STANDARD.decode(key_string)?;
+    eprintln!("{:?}", key);
+
+    let plaintexts_string: String = serde_json::from_value(args["input"].clone())?;
+    //let plaintexts: &[u8] = &b64_2_num(plaintexts_string)?.to_ne_bytes();
+    let plaintexts = BASE64_STANDARD.decode(plaintexts_string)?;
+    eprintln!("{:?}", plaintexts);
+
+    let xor_val: u128 = 0xc0ffeec0ffeec0ffeec0ffeec0ffee11;
+
+    let mut encrypter = Crypter::new(Cipher::aes_128_ecb(), Mode::Encrypt, &key, None)?;
+    encrypter.pad(false);
+
+    let mut ciphertext = [0; 32].to_vec();
+
+    let mut count = encrypter.update(&plaintexts, &mut ciphertext)?;
+    count += encrypter.finalize(&mut ciphertext)?;
+    ciphertext.truncate(count);
+
+    eprintln!("{:?}", &ciphertext[..]);
+
+    let mut bytes: [u8; 16] = [0u8; 16];
+    bytes.copy_from_slice(&ciphertext);
+    let number: u128 = <u128>::from_be_bytes(bytes);
+
+    let output = BASE64_STANDARD.encode((number ^ xor_val).to_be_bytes());
+
+    Ok(output)
+}
+
+#[cfg(test)]
+mod tests {
+    use std::fs;
+
+    use anyhow::Result;
+    use serde_json::json;
+    // Note this useful idiom: importing names from outer (for mod tests) scope.
+    use super::*;
+
+    #[test]
+    fn test_sea128() -> Result<()> {
+        let args =
+            json!({"key" : "istDASeincoolerKEYrofg==", "input" : "yv66vvrO263eyviIiDNEVQ=="});
+
+        assert_eq!(sea128(&args)?, "D5FDo3iVBoBN9gVi9/MSKQ==");
+
+        Ok(())
+    }
+}