diff --git a/Cargo.lock b/Cargo.lock
index 65d3027..d7719b9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -40,7 +40,6 @@ dependencies = [
  "num-prime",
  "num-traits",
  "rand",
- "rpassword",
 ]
 
 [[package]]
@@ -223,27 +222,6 @@ dependencies = [
  "getrandom",
 ]
 
-[[package]]
-name = "rpassword"
-version = "7.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "66d4c8b64f049c6721ec8ccec37ddfc3d641c4a7fca57e8f2a89de509c73df39"
-dependencies = [
- "libc",
- "rtoolbox",
- "windows-sys",
-]
-
-[[package]]
-name = "rtoolbox"
-version = "0.0.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "50a0e551c1e27e1731aba276dbeaeac73f53c7cd34d1bda485d02bd1e0f36844"
-dependencies = [
- "libc",
- "windows-sys",
-]
-
 [[package]]
 name = "syn"
 version = "2.0.117"
@@ -273,79 +251,6 @@ version = "0.11.1+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ccf3ec651a847eb01de73ccad15eb7d99f80485de043efb2f370cd654f4ea44b"
 
-[[package]]
-name = "windows-sys"
-version = "0.59.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e38bc4d79ed67fd075bcc251a1c39b32a1776bbe92e5bef1f0bf1f8c531853b"
-dependencies = [
- "windows-targets",
-]
-
-[[package]]
-name = "windows-targets"
-version = "0.52.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973"
-dependencies = [
- "windows_aarch64_gnullvm",
- "windows_aarch64_msvc",
- "windows_i686_gnu",
- "windows_i686_gnullvm",
- "windows_i686_msvc",
- "windows_x86_64_gnu",
- "windows_x86_64_gnullvm",
- "windows_x86_64_msvc",
-]
-
-[[package]]
-name = "windows_aarch64_gnullvm"
-version = "0.52.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"
-
-[[package]]
-name = "windows_aarch64_msvc"
-version = "0.52.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
-
-[[package]]
-name = "windows_i686_gnu"
-version = "0.52.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e9b5ad5ab802e97eb8e295ac6720e509ee4c243f69d781394014ebfe8bbfa0b"
-
-[[package]]
-name = "windows_i686_gnullvm"
-version = "0.52.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
-
-[[package]]
-name = "windows_i686_msvc"
-version = "0.52.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
-
-[[package]]
-name = "windows_x86_64_gnu"
-version = "0.52.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
-
-[[package]]
-name = "windows_x86_64_gnullvm"
-version = "0.52.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
-
-[[package]]
-name = "windows_x86_64_msvc"
-version = "0.52.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
-
 [[package]]
 name = "wyz"
 version = "0.5.1"
diff --git a/Cargo.toml b/Cargo.toml
index a08062e..174b3d7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,4 +10,3 @@ num-bigint = { version = "0.4.6", features = ["rand"] }
 num-prime = "0.5.0"
 num-traits = "0.2.19"
 rand = "0.8"
-rpassword = "7.4.0"
diff --git a/src/main.rs b/src/main.rs
index b2b80b2..4771a1f 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,4 +1,7 @@
-use std::env;
+use std::{
+    env,
+    io::{self, Write},
+};
 
 use num_bigint::BigUint;
 use num_prime::{
@@ -26,10 +29,11 @@ fn main() {
     let ga = g.modpow(&a, &p);
     println!("g^a mod p = {ga}");
 
-    let gb: BigUint = rpassword::prompt_password("g^b mod p = ")
-        .unwrap()
-        .parse()
-        .unwrap();
+    print!("g^b mod p = ");
+    io::stdout().flush().unwrap();
+    let mut src = String::new();
+    io::stdin().read_line(&mut src).unwrap();
+    let gb: BigUint = src.trim().parse().unwrap();
 
     let s = gb.modpow(&a, &p);
     println!("s = {s}");