diff --git a/Cargo.lock b/Cargo.lock
index 4da5266..c5aaaf0 100755
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -17,7 +17,6 @@ version = "0.1.0"
 dependencies = [
  "assert_hex",
  "criterion",
- "getopts",
  "iai",
  "pretty_assertions",
 ]
@@ -116,7 +115,7 @@ checksum = "a0610544180c38b88101fecf2dd634b174a62eef6946f84dfc6a7127512b381c"
 dependencies = [
  "bitflags",
  "textwrap",
- "unicode-width 0.1.14",
+ "unicode-width",
 ]
 
 [[package]]
@@ -322,15 +321,6 @@ dependencies = [
  "num",
 ]
 
-[[package]]
-name = "getopts"
-version = "0.2.23"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cba6ae63eb948698e300f645f87c70f76630d505f23b8907cf1e193ee85048c1"
-dependencies = [
- "unicode-width 0.2.1",
-]
-
 [[package]]
 name = "half"
 version = "1.8.3"
@@ -789,7 +779,7 @@ version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d326610f408c7a4eb6f51c37c330e496b08506c9457c9d34287ecc38809fb060"
 dependencies = [
- "unicode-width 0.1.14",
+ "unicode-width",
 ]
 
 [[package]]
@@ -834,12 +824,6 @@ version = "0.1.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7dd6e30e90baa6f72411720665d41d89b9a3d039dc45b8faea1ddd07f617f6af"
 
-[[package]]
-name = "unicode-width"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4a1a07cc7db3810833284e8d372ccdc6da29741639ecc70c9ec107df0fa6154c"
-
 [[package]]
 name = "vcell"
 version = "0.1.3"
diff --git a/crates/algorithms/Cargo.toml b/crates/algorithms/Cargo.toml
index db2cdd0..06a45ec 100755
--- a/crates/algorithms/Cargo.toml
+++ b/crates/algorithms/Cargo.toml
@@ -4,7 +4,6 @@ version = "0.1.0"
 edition = "2024"
 
 [dependencies]
-getopts = { version = "0.2.23", optional = true }
 
 [dev-dependencies]
 assert_hex = "0.4.1"
@@ -24,7 +23,6 @@ harness = false
 default = []
 std = []
 show_internals = ["std"]
-getopts = ["dep:getopts"]
 
 [[bin]]
 path = "src/bin/crc32sum.rs"
@@ -33,5 +31,5 @@ required-features = ["std"]
 
 [[bin]]
 path = "src/bin/sha256sum.rs"
-name = "sha256sum"
+name = "algsha256sum"
 required-features = ["std"]
diff --git a/crates/algorithms/src/bin/crc32sum.rs b/crates/algorithms/src/bin/crc32sum.rs
index e69de29..5546afd 100644
--- a/crates/algorithms/src/bin/crc32sum.rs
+++ b/crates/algorithms/src/bin/crc32sum.rs
@@ -0,0 +1,18 @@
+use std::io::Read;
+
+use algorithms::crc::Crc;
+
+fn main() {
+    let args: Vec<String> = std::env::args().collect();
+    let use_ffi = args.contains(&"-c".to_string());
+    let mut input = Vec::new();
+    std::io::stdin()
+        .read_to_end(&mut input)
+        .expect("could not read from stdin");
+    let crc = if use_ffi {
+        algorithms::crc::ffi::Crc32::checksum(&input)
+    } else {
+        algorithms::crc::Crc32::checksum(&input)
+    };
+    println!("{crc:08x}");
+}
diff --git a/crates/algorithms/src/bin/sha256sum.rs b/crates/algorithms/src/bin/sha256sum.rs
index 036a9fc..bcb8e43 100644
--- a/crates/algorithms/src/bin/sha256sum.rs
+++ b/crates/algorithms/src/bin/sha256sum.rs
@@ -1,23 +1,18 @@
+use std::io::Read;
+
 use algorithms::hash::format_digest;
 
 fn main() {
     let args: Vec<String> = std::env::args().collect();
     let use_ffi = args.contains(&"-c".to_string());
-    if args.len() < 2 {
-        usage(&args[0], 1)
-    }
-    let input = &args[1];
-    println!("{:x?}", input.as_bytes());
-    let raw_in = input.as_bytes();
+    let mut input = Vec::new();
+    std::io::stdin()
+        .read_to_end(&mut input)
+        .expect("could not read from stdin");
     let hash = if use_ffi {
-        algorithms::hash::ffi::sha2_256_oneshot(raw_in).expect("could not hash your input data")
+        algorithms::hash::ffi::sha2_256_oneshot(&input).expect("could not hash your input data")
     } else {
-        algorithms::hash::sha2_256_oneshot(raw_in).expect("could not hash your input data")
+        algorithms::hash::sha2_256_oneshot(&input).expect("could not hash your input data")
     };
     println!("{}", format_digest(&hash));
 }
-
-fn usage(call: &str, code: i32) -> ! {
-    println!("USAGE: {call} INPUT [-c]");
-    std::process::exit(code)
-}