remove rand and replace with general cryptography

Cargo.lock

@@ -68,6 +68,13 @@ dependencies = [
  "toml 0.5.9 (git+https://git.ablecorp.us/theoddgarlic/toml-rs)",
 ]
 
+[[package]]
+name = "cryptography"
+version = "0.1.1"
+dependencies = [
+ "versioning",
+]
+
 [[package]]
 name = "delete"
 version = "0.1.0"
@@ -152,6 +159,14 @@ dependencies = [
  "cfg-if",
 ]
 
+[[package]]
+name = "messaging"
+version = "0.1.0"
+dependencies = [
+ "process",
+ "versioning",
+]
+
 [[package]]
 name = "no_video"
 version = "0.1.0"
@@ -177,6 +192,13 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "process"
+version = "0.1.0"
+dependencies = [
+ "versioning",
+]
+
 [[package]]
 name = "ps2_keyboard"
 version = "0.1.0"
@@ -190,18 +212,11 @@ dependencies = [
  "proc-macro2",
 ]
 
-[[package]]
-name = "rand"
-version = "0.1.1"
-dependencies = [
- "versioning",
-]
-
 [[package]]
 name = "randomness_handler"
 version = "0.1.0"
 dependencies = [
- "rand",
+ "cryptography",
  "versioning",
 ]
 

Cargo.toml

@@ -13,8 +13,10 @@ members = [
 
     "libraries/able_graphics_library",
     "libraries/clparse",
+    "libraries/cryptography",
     "libraries/locale-maxima",
-    "libraries/rand",
+    "libraries/messaging",
+    "libraries/process",
     "libraries/table",
     "libraries/tar",
     "libraries/time",

libraries/cryptography/Cargo.toml

@@ -1,5 +1,5 @@
 [package]
-name = "rand"
+name = "cryptography"
 version = "0.1.1"
 edition = "2021"
 

libraries/cryptography/src/hashing/mod.rs

@@ -0,0 +1,10 @@
+pub fn checksum<T: AsRef<[u8]>>(input: T) -> u64 {
+    let input_bytes = input.as_ref();
+
+    let mut checksum: u64 = 0;
+    for &byte in input_bytes {
+        checksum = checksum.wrapping_add(byte as u64);
+    }
+
+    checksum
+}

libraries/cryptography/src/lib.rs

@@ -0,0 +1,6 @@
+#![no_std]
+
+pub mod random;
+
+use versioning::Version;
+pub const VERSION: Version = Version::new(0, 1, 1);

libraries/cryptography/src/random/mod.rs

@@ -1,10 +1,5 @@
-#![no_std]
-
 use core::fmt::Display;
 
-use versioning::Version;
-pub const VERSION: Version = Version::new(0, 1, 1);
-
 pub struct Csprng {
     state: [u8; 256],
     dirty: bool,