started enduser docs
Johannes Bülow
parent
cf9bb7b4bf
commit
ea950ad69f
GPG Key ID:
B56971CF7B8F83A6
5
Makefile
5
Makefile
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@ -15,9 +15,6 @@ build:
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rm -rf $(CURDIR)/dist
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$(JSPKGMAN) run vite build
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wasm-pack:
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wasm-pack build $(CURDIR)/wasm --target web
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cp $(CURDIR)/wasm/pkg/crypttool_wasm_bg.wasm $(CURDIR)/src/lib/crypttool.wasm
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docker:
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podman build -t docker.io/jmbitci/crypttool .
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@ -30,7 +27,5 @@ docker:
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#TODO get rid of -f and check whether files exist instead
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clean:
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rm -f $(CURDIR)/src/lib/crypttool.wasm
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rm -rf $(CURDIR)/wasm/pkg/*
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rm -rf $(CURDIR)/wasm/target/*
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rm -rf $(CURDIR)/node_modules/*
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rm -rf $(CURDIR)/dist
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@ -1,4 +1,4 @@
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# Crypttool
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# [Crypttool](https://crypttool.jmbit.de/)
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## A website to encrypt and decrypt files offline in the Browser
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This Project is more of a proof of concept than an actually useful Application, but it essentially wants to solve the Issue of sending and recieving encrypted Files via E-Mail or other means.
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The Idea of this Project is to do all of the Encryption client-side using Javascript or WebAssembly, so the Website will work without any Server and can be packaged as a single html file and distributed this way.
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@ -0,0 +1,29 @@
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# Crypttool Docs
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Crypttool is an open source utility to de- and encrypt files using a symmetrical key.
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The emphasis is on using simple to use web interface to allow anyone to use symmetric encryption for e.g. Email
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attachments without installing additional software.
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The application runs entirely in the Browser and does not send any Data to the webserver beyond the main requests.
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## Usage:
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### 1. Password Generation
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The Password field is populated randomly on every page load using the [getRandomValues](https://developer.mozilla.org/en-US/docs/Web/API/Crypto/getRandomValues)
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function of the web browsers crypto API. Because this application (currently) does not use any cookies, it does not
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persist the password across sessions.
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If you want to use your own password, you can supply it by entering it in the password field and clicking "Update". Be
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careful when using a password that isn't truly randomly created, since the whole cryptography of this application is
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built on this string. Thus it is strongly advised to use a randomly generated password or passphrase.
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### 2. Encrypting a File
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To encrypt a file, you just need to drag it to the field containing the "Encrypt" button and press
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the "Encrypt button". Your browser will now encrypt the file and "download" it. The Encryption is handled using the
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[encrypt](https://developer.mozilla.org/en-US/docs/Web/API/SubtleCrypto/encrypt) method of the
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[SubtleCrypto](https://developer.mozilla.org/en-US/docs/Web/API/SubtleCrypto) API.
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### 3. Decrypting a File
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To decrypt a file, first enter the password that was used to encrypt it in the "Password" field and click "Update".
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Then, drag the encrypted file to the field containing the "Decrypt" button.
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After pressing the "Decrypt" button, your browser should decrypt the file using the [decrypt](https://developer.mozilla.org/en-US/docs/Web/API/SubtleCrypto/decrypt)
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method of the SubtleCrypto API and "download" the cleartext file.
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@ -55,8 +55,6 @@ function getKey(keyMaterial: CryptoKey) {
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/*
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Derive a key from a password supplied by the user, and use the key
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to encrypt the message.
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Update the "ciphertextValue" box with a representation of part of
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the ciphertext.
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*/
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export async function encryptFile(file: File) {
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let keyMaterial = await getKeyMaterial();
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@ -81,9 +79,8 @@ export async function encryptFile(file: File) {
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Derive a key from a password supplied by the user, and use the key
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to decrypt the ciphertext.
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If the ciphertext was decrypted successfully,
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update the "decryptedValue" box with the decrypted value.
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If there was an error decrypting,
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update the "decryptedValue" box with an error message.
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return the decryptet files blob, if the decryption failed,
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update the "errorMessage" box with an error message.
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*/
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export async function decryptFileContent(base64Encoded: string) {
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//prepare cryptography
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@ -9,6 +9,7 @@ function generateRandomString(length: number): string {
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let result = '';
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while (result.length < length) {
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const array = new Uint8Array(1);
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// https://developer.mozilla.org/en-US/docs/Web/API/Crypto/getRandomValues
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self.crypto.getRandomValues(array);
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const charCode: number = array[0];
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if ( 33 < charCode && charCode < 126 ) {
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@ -1 +0,0 @@
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target/*
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@ -1,336 +0,0 @@
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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version = 3
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[[package]]
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dependencies = [
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"cipher",
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]
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[[package]]
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dependencies = [
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"generic-array",
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[[package]]
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name = "cpufeatures"
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checksum = "28d997bd5e24a5928dd43e46dc529867e207907fe0b239c3477d924f7f2ca320"
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dependencies = [
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"libc",
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[[package]]
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name = "crc-any"
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[[package]]
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"wasm-bindgen",
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[[package]]
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name = "debug-helper"
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[[package]]
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[[package]]
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||||
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[[package]]
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||||
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|
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|
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|
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||||
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|
||||
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|
||||
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|
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|
||||
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|
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|
||||
|
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||||
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||||
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||||
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||||
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||||
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||||
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|
||||
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|
||||
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||||
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||||
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||||
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||||
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|
||||
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||||
|
||||
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|
||||
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||||
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||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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||||
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||||
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||||
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|
||||
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||||
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||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
|
||||
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|
||||
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|
||||
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||||
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||||
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||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
|
||||
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|
||||
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||||
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||||
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||||
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||||
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|
||||
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|
||||
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|
||||
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|
||||
|
||||
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||||
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||||
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||||
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||||
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||||
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|
||||
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|
||||
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|
||||
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|
||||
|
||||
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||||
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||||
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|
||||
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|
||||
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|
||||
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|
||||
|
||||
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|
||||
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|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
|
||||
"wasm-bindgen-backend",
|
||||
"wasm-bindgen-shared",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wasm-bindgen-shared"
|
||||
version = "0.2.83"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1c38c045535d93ec4f0b4defec448e4291638ee608530863b1e2ba115d4fff7f"
|
||||
|
||||
[[package]]
|
||||
name = "web-sys"
|
||||
version = "0.3.60"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "bcda906d8be16e728fd5adc5b729afad4e444e106ab28cd1c7256e54fa61510f"
|
||||
dependencies = [
|
||||
"js-sys",
|
||||
"wasm-bindgen",
|
||||
]
|
||||
|
|
@ -1,23 +0,0 @@
|
|||
[package]
|
||||
name = "crypttool-wasm"
|
||||
version = "0.1.0"
|
||||
edition = "2021"
|
||||
|
||||
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
|
||||
|
||||
[lib]
|
||||
crate-type = ["cdylib", "rlib"]
|
||||
|
||||
[dependencies]
|
||||
wasm-bindgen = "0.2"
|
||||
magic-crypt = "3.1.12"
|
||||
|
||||
[dependencies.web-sys]
|
||||
version = "*"
|
||||
features = [
|
||||
'Document',
|
||||
'Element',
|
||||
'HtmlElement',
|
||||
'Node',
|
||||
'Window',
|
||||
]
|
||||
|
|
@ -1,18 +0,0 @@
|
|||
use wasm_bindgen::prelude::*;
|
||||
use magic_crypt::{new_magic_crypt, MagicCryptTrait};
|
||||
|
||||
// Hacky implementation for a wasm file to en- and decrypt files
|
||||
|
||||
#[wasm_bindgen]
|
||||
pub fn encrypt(password: &str, plain_base64: &str) -> String {
|
||||
let crypt = new_magic_crypt!(password, 256);
|
||||
let encrypted_base64 = crypt.encrypt_str_to_base64(plain_base64);
|
||||
return encrypted_base64;
|
||||
}
|
||||
|
||||
#[wasm_bindgen]
|
||||
pub fn decrypt(password: &str, encrypted_base64: &str) -> String {
|
||||
let crypt = new_magic_crypt!(password, 256);
|
||||
let plain_base64 = crypt.decrypt_base64_to_string(encrypted_base64);
|
||||
return plain_base64.unwrap();
|
||||
}
|
||||
Loading…
Reference in New Issue