diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..011b132
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,5 @@
+/target
+/download
+/tmp
+public_data
+secret_data
\ No newline at end of file
diff --git a/Cargo.lock b/Cargo.lock
index 9ee5187..2cecd4b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -49,7 +49,7 @@ version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "819e7219dbd41043ac279b19830f2efc897156490d7fd6ea916720117ee66311"
 dependencies = [
- "libc 0.2.155",
+ "libc",
 ]
 
 [[package]]
@@ -76,7 +76,7 @@ dependencies = [
  "addr2line",
  "cc",
  "cfg-if 1.0.0",
- "libc 0.2.155",
+ "libc",
  "miniz_oxide",
  "object",
  "rustc-demangle",
@@ -160,7 +160,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "96c51067fd44124faa7f870b4b1c969379ad32b2ba805aa959430ceaa384f695"
 dependencies = [
  "jobserver",
- "libc 0.2.155",
+ "libc",
  "once_cell",
 ]
 
@@ -215,7 +215,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1c7080e711c39c3dda834604f7c31f4634a38b8dddeb9f24db5d7801751415ad"
 dependencies = [
  "aes",
- "libc 0.2.155",
+ "libc",
  "rayon",
 ]
 
@@ -268,7 +268,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "91e195e091a93c46f7102ec7818a2aa394e1e1771c3ab4825963fa03e45afb8f"
 dependencies = [
  "core-foundation-sys",
- "libc 0.2.155",
+ "libc",
 ]
 
 [[package]]
@@ -283,7 +283,7 @@ version = "0.2.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "53fe5e26ff1b7aef8bca9c6080520cfb8d9333c7568e1829cef191a9723e5504"
 dependencies = [
- "libc 0.2.155",
+ "libc",
 ]
 
 [[package]]
@@ -471,7 +471,7 @@ version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "534c5cf6194dfab3db3242765c03bbe257cf92f22b38f6bc0c58d59108a820ba"
 dependencies = [
- "libc 0.2.155",
+ "libc",
  "windows-sys 0.52.0",
 ]
 
@@ -598,7 +598,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c4567c8db10ae91089c99af84c68c38da3ec2f087c3f82960bcdbf3656b6f4d7"
 dependencies = [
  "cfg-if 1.0.0",
- "libc 0.2.155",
+ "libc",
  "wasi 0.11.0+wasi-snapshot-preview1",
 ]
 
@@ -923,7 +923,7 @@ version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b2b3ea6ff95e175473f8ffe6a7eb7c00d054240321b84c57051175fe3c1e075e"
 dependencies = [
- "libc 0.2.155",
+ "libc",
 ]
 
 [[package]]
@@ -953,7 +953,7 @@ version = "0.1.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d2b099aaa34a9751c5bf0878add70444e1ed2dd73f347be99003d4577277de6e"
 dependencies = [
- "libc 0.2.155",
+ "libc",
 ]
 
 [[package]]
@@ -981,12 +981,6 @@ version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
-[[package]]
-name = "libc"
-version = "0.1.12"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e32a70cf75e5846d53a673923498228bbec6a8624708a9ea5645f075d6276122"
-
 [[package]]
 name = "libc"
 version = "0.2.155"
@@ -1099,7 +1093,7 @@ dependencies = [
  "fuchsia-zircon-sys",
  "iovec",
  "kernel32-sys",
- "libc 0.2.155",
+ "libc",
  "log",
  "miow",
  "net2",
@@ -1113,7 +1107,7 @@ version = "0.8.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a4a650543ca06a924e8b371db273b2756685faae30f8487da1b56505a8f78b0c"
 dependencies = [
- "libc 0.2.155",
+ "libc",
  "wasi 0.11.0+wasi-snapshot-preview1",
  "windows-sys 0.48.0",
 ]
@@ -1136,7 +1130,7 @@ version = "0.2.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a8614eb2c83d59d1c8cc974dd3f920198647674a0a035e1af1fa58707e317466"
 dependencies = [
- "libc 0.2.155",
+ "libc",
  "log",
  "openssl",
  "openssl-probe",
@@ -1154,7 +1148,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b13b648036a2339d06de780866fbdfda0dde886de7b3af2ddeba8b14f4ee34ac"
 dependencies = [
  "cfg-if 0.1.10",
- "libc 0.2.155",
+ "libc",
  "winapi 0.3.9",
 ]
 
@@ -1191,7 +1185,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4161fcb6d602d4d2081af7c3a45852d875a03dd337a6bfdd6e06407b61342a43"
 dependencies = [
  "hermit-abi",
- "libc 0.2.155",
+ "libc",
 ]
 
 [[package]]
@@ -1218,7 +1212,7 @@ dependencies = [
  "bitflags 2.5.0",
  "cfg-if 1.0.0",
  "foreign-types",
- "libc 0.2.155",
+ "libc",
  "once_cell",
  "openssl-macros",
  "openssl-sys",
@@ -1248,7 +1242,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c597637d56fbc83893a35eb0dd04b2b8e7a50c91e64e9493e398b5df4fb45fa2"
 dependencies = [
  "cc",
- "libc 0.2.155",
+ "libc",
  "pkg-config",
  "vcpkg",
 ]
@@ -1282,7 +1276,7 @@ checksum = "bda66b810a62be75176a80873726630147a5ca780cd33921e0b5709033e66b0a"
 dependencies = [
  "cfg-if 0.1.10",
  "cloudabi",
- "libc 0.2.155",
+ "libc",
  "redox_syscall 0.1.57",
  "rustc_version",
  "smallvec 0.6.14",
@@ -1296,7 +1290,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1e401f977ab385c9e4e3ab30627d6f26d00e2c73eef317493c4ec6d468726cf8"
 dependencies = [
  "cfg-if 1.0.0",
- "libc 0.2.155",
+ "libc",
  "redox_syscall 0.5.2",
  "smallvec 1.13.2",
  "windows-targets 0.52.5",
@@ -1385,7 +1379,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6d71dacdc3c88c1fde3885a3be3fbab9f35724e6ce99467f7d9c5026132184ca"
 dependencies = [
  "autocfg 0.1.8",
- "libc 0.2.155",
+ "libc",
  "rand_chacha",
  "rand_core 0.4.2",
  "rand_hc",
@@ -1455,7 +1449,7 @@ version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1166d5c91dc97b88d1decc3285bb0a99ed84b05cfd0bc2341bdf2d43fc41e39b"
 dependencies = [
- "libc 0.2.155",
+ "libc",
  "rand_core 0.4.2",
  "winapi 0.3.9",
 ]
@@ -1468,7 +1462,7 @@ checksum = "7b75f676a1e053fc562eafbb47838d67c84801e38fc1ba459e8f180deabd5071"
 dependencies = [
  "cloudabi",
  "fuchsia-cprng",
- "libc 0.2.155",
+ "libc",
  "rand_core 0.4.2",
  "rdrand",
  "winapi 0.3.9",
@@ -1579,12 +1573,23 @@ dependencies = [
 
 [[package]]
 name = "rpassword"
-version = "0.0.4"
+version = "7.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0a9dde63c78217c24d7f16dc1d60aac012124ba29d7bfa71bda532d4de668f44"
+checksum = "80472be3c897911d0137b2d2b9055faf6eeac5b14e324073d83bc17b191d7e3f"
 dependencies = [
- "libc 0.1.12",
- "termios",
+ "libc",
+ "rtoolbox",
+ "windows-sys 0.48.0",
+]
+
+[[package]]
+name = "rtoolbox"
+version = "0.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c247d24e63230cdb56463ae328478bd5eac8b8faa8c69461a77e8e323afac90e"
+dependencies = [
+ "libc",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
@@ -1610,7 +1615,7 @@ checksum = "70dc5ec042f7a43c4a73241207cecc9873a06d45debb38b329f8541d85c2730f"
 dependencies = [
  "bitflags 2.5.0",
  "errno",
- "libc 0.2.155",
+ "libc",
  "linux-raw-sys",
  "windows-sys 0.52.0",
 ]
@@ -1645,7 +1650,7 @@ dependencies = [
  "bitflags 2.5.0",
  "core-foundation",
  "core-foundation-sys",
- "libc 0.2.155",
+ "libc",
  "security-framework-sys",
 ]
 
@@ -1656,7 +1661,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "317936bbbd05227752583946b9e66d7ce3b489f84e11a94a510b4437fef407d7"
 dependencies = [
  "core-foundation-sys",
- "libc 0.2.155",
+ "libc",
 ]
 
 [[package]]
@@ -1760,7 +1765,7 @@ version = "1.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a9e9e0b4211b72e7b8b6e85c807d36c212bdb33ea8587f7569562a84df5465b1"
 dependencies = [
- "libc 0.2.155",
+ "libc",
 ]
 
 [[package]]
@@ -1793,7 +1798,7 @@ version = "0.5.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ce305eb0b4296696835b71df73eb912e0f1ffd2556a501fcede6e0c50349191c"
 dependencies = [
- "libc 0.2.155",
+ "libc",
  "windows-sys 0.52.0",
 ]
 
@@ -1875,15 +1880,6 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
-[[package]]
-name = "termios"
-version = "0.0.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "75071a31761781a74d091387713756966a74ce60eea99a093a5ab3f2cccac3fe"
-dependencies = [
- "libc 0.1.12",
-]
-
 [[package]]
 name = "tfhe"
 version = "0.6.3"
@@ -1925,7 +1921,7 @@ version = "0.1.45"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1b797afad3f312d1c66a56d11d0316f916356d11bd158fbc6ca6389ff6bf805a"
 dependencies = [
- "libc 0.2.155",
+ "libc",
  "wasi 0.10.0+wasi-snapshot-preview1",
  "winapi 0.3.9",
 ]
@@ -2013,7 +2009,7 @@ checksum = "ba4f4a02a7a80d6f274636f0aa95c7e383b912d41fe721a31f29e29698585a4a"
 dependencies = [
  "backtrace",
  "bytes 1.6.0",
- "libc 0.2.155",
+ "libc",
  "mio 0.8.11",
  "num_cpus",
  "parking_lot 0.12.3",
diff --git a/Cargo.toml b/Cargo.toml
index e6cee14..b5bd1cf 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,5 +11,5 @@ bincode = "1.3.3"
 serde_bytes = "0.11.14"
 serde = "1.0"
 zstd = "0.13.1"
-rpassword = "0.0.4"
+rpassword = "7.3"
 tokio = { version = "1.38.0", features = ["full"] }
\ No newline at end of file
diff --git a/src/main.rs b/src/main.rs
index da93850..4057966 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -32,7 +32,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
 
 async fn calc_phase() -> Result<(), Box<dyn std::error::Error>> {
     println!("ローカルデータ読み込み中...");
-    let (my_friends, client_key) = load_local_secret_data().await.unwrap();
+    let (my_friends, _client_key) = load_local_secret_data().await.unwrap();
 
     println!("相手の暗号化済みフレンドリストの読み込み中...");
     let (remote_data, server_keys) = load_remote_data().await.unwrap();
@@ -60,6 +60,13 @@ async fn calc_phase() -> Result<(), Box<dyn std::error::Error>> {
         result.push(res.iter().fold(sample.clone(), |acc, x| (acc | x)));
     }
 
+    println!("データの整形中...");
+    let serialized_compared_friends: SerializedComparedFriends = SerializedComparedFriends { friends: result.iter().map(|f| SerializedComparedFriend { value: bincode::serialize(f).unwrap() }).collect() };
+
+    println!("データの保存中...");
+    let mut file = File::create("mutual_friends").unwrap();
+    bincode::serialize_into(&mut file, &serialized_compared_friends).unwrap();
+
     Ok(())
 }
 
@@ -193,3 +200,14 @@ struct SerializedFriend {
     #[serde(with = "serde_bytes")]
     value: Vec<u8>,
 }
+
+#[derive(Serialize, Deserialize)]
+struct SerializedComparedFriends {
+    friends: Vec<SerializedComparedFriend>,
+}
+
+#[derive(Serialize, Deserialize)]
+struct SerializedComparedFriend {
+    #[serde(with = "serde_bytes")]
+    value: Vec<u8>,
+}