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-rw-r--r--base32/.gitignore2
-rw-r--r--base32/.travis.yml1
-rw-r--r--base32/Cargo.toml16
-rw-r--r--base32/LICENSE-APACHE202
-rw-r--r--base32/LICENSE-MIT19
-rw-r--r--base32/README.md35
-rw-r--r--base32/src/lib.rs221
-rw-r--r--nitrocli/Cargo.lock5
-rw-r--r--nitrocli/Cargo.toml5
9 files changed, 506 insertions, 0 deletions
diff --git a/base32/.gitignore b/base32/.gitignore
new file mode 100644
index 0000000..fa8d85a
--- /dev/null
+++ b/base32/.gitignore
@@ -0,0 +1,2 @@
+Cargo.lock
+target
diff --git a/base32/.travis.yml b/base32/.travis.yml
new file mode 100644
index 0000000..22761ba
--- /dev/null
+++ b/base32/.travis.yml
@@ -0,0 +1 @@
+language: rust
diff --git a/base32/Cargo.toml b/base32/Cargo.toml
new file mode 100644
index 0000000..ff63bbe
--- /dev/null
+++ b/base32/Cargo.toml
@@ -0,0 +1,16 @@
+[package]
+
+name = "base32"
+version = "0.4.0"
+authors = [ "Andreas Ots <qrpth@qrpth.eu>", "Tim Dumol <tim@timdumol.com>" ]
+license = "MIT OR Apache-2.0"
+repository = "https://github.com/andreasots/base32"
+description = "Base32 encoder/decoder for Rust"
+
+[lib]
+
+name = "base32"
+
+[dev-dependencies]
+quickcheck = "0.7.1"
+rand = "0.5.5"
diff --git a/base32/LICENSE-APACHE b/base32/LICENSE-APACHE
new file mode 100644
index 0000000..8f71f43
--- /dev/null
+++ b/base32/LICENSE-APACHE
@@ -0,0 +1,202 @@
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+ 1. Definitions.
+
+ "License" shall mean the terms and conditions for use, reproduction,
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+
diff --git a/base32/LICENSE-MIT b/base32/LICENSE-MIT
new file mode 100644
index 0000000..2a55a47
--- /dev/null
+++ b/base32/LICENSE-MIT
@@ -0,0 +1,19 @@
+Copyright (c) 2015 The base32 Developers
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/base32/README.md b/base32/README.md
new file mode 100644
index 0000000..86d9ad9
--- /dev/null
+++ b/base32/README.md
@@ -0,0 +1,35 @@
+# base32 [![Build Status](https://travis-ci.org/andreasots/base32.svg?branch=master)](https://travis-ci.org/andreasots/base32)
+
+This library lets you encode and decode in either [RFC4648 Base32](http://en.wikipedia.org/wiki/Base32#RFC_4648_Base32_alphabet) or in [Crockford Base32](http://en.wikipedia.org/wiki/Base32#Crockford.27s_Base32).
+
+# Usage
+
+```rust
+// crockford base32
+assert_eq!(encode(CrockfordBase32, [0xF8, 0x3E, 0x0F, 0x83, 0xE0]), Vec::from_slice("Z0Z0Z0Z0".to_ascii()));
+assert_eq!(decode(CrockfordBase32, "Z0Z0Z0Z0".to_ascii()).unwrap(), vec![0xF8, 0x3E, 0x0F, 0x83, 0xE0]);
+
+// rfc4648 base32
+assert_eq!(encode(RFC4648Base32, [0xF8, 0x3E, 0x7F, 0x83, 0xE7]), Vec::from_slice("7A7H7A7H".to_ascii()));
+assert_eq!(decode(RFC4648Base32, "7A7H7A7H".to_ascii()).unwrap(), vec![0xF8, 0x3E, 0x7F, 0x83, 0xE7]);
+
+// rfc4648 base32 without padding characters (=)
+assert_eq!(encode(UnpaddedRFC4648Base32, [0xF8, 0x3E, 0x7F, 0x83, 0xE7]), Vec::from_slice("7A7H7A7H".to_ascii()));
+assert_eq!(decode(UnpaddedRFC4648Base32, "7A7H7A7H".to_ascii()).unwrap(), vec![0xF8, 0x3E, 0x7F, 0x83, 0xE7]);
+```
+
+## License
+
+Licensed under either of
+
+ * Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
+ * MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
+
+at your option.
+
+### Contribution
+
+Unless you explicitly state otherwise, any contribution intentionally
+submitted for inclusion in the work by you, as defined in the Apache-2.0
+license, shall be dual licensed as above, without any additional terms or
+conditions.
diff --git a/base32/src/lib.rs b/base32/src/lib.rs
new file mode 100644
index 0000000..e21cf97
--- /dev/null
+++ b/base32/src/lib.rs
@@ -0,0 +1,221 @@
+#[cfg(test)]
+extern crate quickcheck;
+#[cfg(test)]
+extern crate rand;
+
+use std::cmp::min;
+
+#[derive(Copy,Clone)]
+pub enum Alphabet {
+ RFC4648 { padding: bool },
+ Crockford,
+}
+
+const RFC4648_ALPHABET: &'static [u8] = b"ABCDEFGHIJKLMNOPQRSTUVWXYZ234567";
+const CROCKFORD_ALPHABET: &'static [u8] = b"0123456789ABCDEFGHJKMNPQRSTVWXYZ";
+
+pub fn encode(alphabet: Alphabet, data: &[u8]) -> String {
+ let (alphabet, padding) = match alphabet {
+ Alphabet::RFC4648 { padding } => (RFC4648_ALPHABET, padding),
+ Alphabet::Crockford => (CROCKFORD_ALPHABET, false),
+ };
+ let mut ret = Vec::with_capacity((data.len()+3)/4*5);
+
+ for chunk in data.chunks(5) {
+ let buf = {
+ let mut buf = [0u8; 5];
+ for (i, &b) in chunk.iter().enumerate() {
+ buf[i] = b;
+ }
+ buf
+ };
+ ret.push(alphabet[((buf[0] & 0xF8) >> 3) as usize]);
+ ret.push(alphabet[(((buf[0] & 0x07) << 2) | ((buf[1] & 0xC0) >> 6)) as usize]);
+ ret.push(alphabet[((buf[1] & 0x3E) >> 1) as usize]);
+ ret.push(alphabet[(((buf[1] & 0x01) << 4) | ((buf[2] & 0xF0) >> 4)) as usize]);
+ ret.push(alphabet[(((buf[2] & 0x0F) << 1) | (buf[3] >> 7)) as usize]);
+ ret.push(alphabet[((buf[3] & 0x7C) >> 2) as usize]);
+ ret.push(alphabet[(((buf[3] & 0x03) << 3) | ((buf[4] & 0xE0) >> 5)) as usize]);
+ ret.push(alphabet[(buf[4] & 0x1F) as usize]);
+ }
+
+ if data.len() % 5 != 0 {
+ let len = ret.len();
+ let num_extra = 8-(data.len()%5*8+4)/5;
+ if padding {
+ for i in 1..num_extra+1 {
+ ret[len-i] = b'=';
+ }
+ } else {
+ ret.truncate(len-num_extra);
+ }
+ }
+
+ String::from_utf8(ret).unwrap()
+}
+
+const RFC4648_INV_ALPHABET: [i8; 43] = [-1, -1, 26, 27, 28, 29, 30, 31, -1, -1, -1, -1, -1, 0, -1, -1, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25];
+const CROCKFORD_INV_ALPHABET: [i8; 43] = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, -1, -1, -1, -1, -1, -1, -1, 10, 11, 12, 13, 14, 15, 16, 17, 1, 18, 19, 1, 20, 21, 0, 22, 23, 24, 25, 26, -1, 27, 28, 29, 30, 31];
+
+pub fn decode(alphabet: Alphabet, data: &str) -> Option<Vec<u8>> {
+ if !data.is_ascii() {
+ return None;
+ }
+ let data = data.as_bytes();
+ let alphabet = match alphabet {
+ Alphabet::RFC4648 {..} => RFC4648_INV_ALPHABET,
+ Alphabet::Crockford => CROCKFORD_INV_ALPHABET
+ };
+ let mut unpadded_data_length = data.len();
+ for i in 1..min(6, data.len())+1 {
+ if data[data.len() - i] != b'=' {
+ break;
+ }
+ unpadded_data_length -= 1;
+ }
+ let output_length = unpadded_data_length*5/8;
+ let mut ret = Vec::with_capacity((output_length+4)/5*5);
+ for chunk in data.chunks(8) {
+ let buf = {
+ let mut buf = [0u8; 8];
+ for (i, &c) in chunk.iter().enumerate() {
+ match alphabet.get(c.to_ascii_uppercase().wrapping_sub(b'0') as usize) {
+ Some(&-1) | None => return None,
+ Some(&value) => buf[i] = value as u8,
+ };
+ }
+ buf
+ };
+ ret.push((buf[0] << 3) | (buf[1] >> 2));
+ ret.push((buf[1] << 6) | (buf[2] << 1) | (buf[3] >> 4));
+ ret.push((buf[3] << 4) | (buf[4] >> 1));
+ ret.push((buf[4] << 7) | (buf[5] << 2) | (buf[6] >> 3));
+ ret.push((buf[6] << 5) | buf[7]);
+ }
+ ret.truncate(output_length);
+ Some(ret)
+}
+
+#[cfg(test)]
+#[allow(dead_code, unused_attributes)]
+mod test {
+ use super::{encode, decode};
+ use super::Alphabet::{Crockford, RFC4648};
+ use quickcheck;
+ use std;
+ use rand::Rng;
+
+ #[derive(Clone)]
+ struct B32 {
+ c: u8
+ }
+
+ impl quickcheck::Arbitrary for B32 {
+ fn arbitrary<G: quickcheck::Gen>(g: &mut G) -> B32 {
+ let alphabet = b"0123456789ABCDEFGHJKMNPQRSTVWXYZ";
+ B32 {
+ c: alphabet[g.gen_range(0, alphabet.len())]
+ }
+ }
+ }
+
+ impl std::fmt::Debug for B32 {
+ fn fmt(&self, f: &mut std::fmt::Formatter) -> Result<(), std::fmt::Error> {
+ (self.c as char).fmt(f)
+ }
+ }
+
+ #[test]
+ fn masks_crockford() {
+ assert_eq!(encode(Crockford, &[0xF8, 0x3E, 0x0F, 0x83, 0xE0]), "Z0Z0Z0Z0");
+ assert_eq!(encode(Crockford, &[0x07, 0xC1, 0xF0, 0x7C, 0x1F]), "0Z0Z0Z0Z");
+ assert_eq!(decode(Crockford, "Z0Z0Z0Z0").unwrap(), [0xF8, 0x3E, 0x0F, 0x83, 0xE0]);
+ assert_eq!(decode(Crockford, "0Z0Z0Z0Z").unwrap(), [0x07, 0xC1, 0xF0, 0x7C, 0x1F]);
+ }
+
+ #[test]
+ fn masks_rfc4648() {
+ assert_eq!(encode(RFC4648 { padding: true }, &[0xF8, 0x3E, 0x7F, 0x83, 0xE7]), "7A7H7A7H");
+ assert_eq!(encode(RFC4648 { padding: true }, &[0x77, 0xC1, 0xF7, 0x7C, 0x1F]), "O7A7O7A7");
+ assert_eq!(decode(RFC4648 { padding: true }, "7A7H7A7H").unwrap(), [0xF8, 0x3E, 0x7F, 0x83, 0xE7]);
+ assert_eq!(decode(RFC4648 { padding: true }, "O7A7O7A7").unwrap(), [0x77, 0xC1, 0xF7, 0x7C, 0x1F]);
+ assert_eq!(encode(RFC4648 { padding: true }, &[0xF8, 0x3E, 0x7F, 0x83]), "7A7H7AY=");
+ }
+
+ #[test]
+ fn masks_unpadded_rfc4648() {
+ assert_eq!(encode(RFC4648 { padding: false }, &[0xF8, 0x3E, 0x7F, 0x83, 0xE7]), "7A7H7A7H");
+ assert_eq!(encode(RFC4648 { padding: false }, &[0x77, 0xC1, 0xF7, 0x7C, 0x1F]), "O7A7O7A7");
+ assert_eq!(decode(RFC4648 { padding: false }, "7A7H7A7H").unwrap(), [0xF8, 0x3E, 0x7F, 0x83, 0xE7]);
+ assert_eq!(decode(RFC4648 { padding: false }, "O7A7O7A7").unwrap(), [0x77, 0xC1, 0xF7, 0x7C, 0x1F]);
+ assert_eq!(encode(RFC4648 { padding: false }, &[0xF8, 0x3E, 0x7F, 0x83]), "7A7H7AY");
+ }
+
+ #[test]
+ fn padding() {
+ let num_padding = [0, 6, 4, 3, 1];
+ for i in 1..6 {
+ let encoded = encode(RFC4648 { padding: true }, (0..(i as u8)).collect::<Vec<u8>>().as_ref());
+ assert_eq!(encoded.len(), 8);
+ for j in 0..(num_padding[i % 5]) {
+ assert_eq!(encoded.as_bytes()[encoded.len()-j-1], b'=');
+ }
+ for j in 0..(8 - num_padding[i % 5]) {
+ assert!(encoded.as_bytes()[j] != b'=');
+ }
+ }
+ }
+
+ #[test]
+ fn invertible_crockford() {
+ fn test(data: Vec<u8>) -> bool {
+ decode(Crockford, encode(Crockford, data.as_ref()).as_ref()).unwrap() == data
+ }
+ quickcheck::quickcheck(test as fn(Vec<u8>) -> bool)
+ }
+
+ #[test]
+ fn invertible_rfc4648() {
+ fn test(data: Vec<u8>) -> bool {
+ decode(RFC4648 { padding: true }, encode(RFC4648 { padding: true }, data.as_ref()).as_ref()).unwrap() == data
+ }
+ quickcheck::quickcheck(test as fn(Vec<u8>) -> bool)
+ }
+ #[test]
+ fn invertible_unpadded_rfc4648() {
+ fn test(data: Vec<u8>) -> bool {
+ decode(RFC4648 { padding: false }, encode(RFC4648 { padding: false }, data.as_ref()).as_ref()).unwrap() == data
+ }
+ quickcheck::quickcheck(test as fn(Vec<u8>) -> bool)
+ }
+
+ #[test]
+ fn lower_case() {
+ fn test(data: Vec<B32>) -> bool {
+ let data: String = data.iter().map(|e| e.c as char).collect();
+ decode(Crockford, data.as_ref()) == decode(Crockford, data.to_ascii_lowercase().as_ref())
+ }
+ quickcheck::quickcheck(test as fn(Vec<B32>) -> bool)
+ }
+
+ #[test]
+ #[allow(non_snake_case)]
+ fn iIlL1_oO0() {
+ assert_eq!(decode(Crockford, "IiLlOo"), decode(Crockford, "111100"));
+ }
+
+ #[test]
+ fn invalid_chars_crockford() {
+ assert_eq!(decode(Crockford, ","), None)
+ }
+
+ #[test]
+ fn invalid_chars_rfc4648() {
+ assert_eq!(decode(RFC4648 { padding: true }, ","), None)
+ }
+
+ #[test]
+ fn invalid_chars_unpadded_rfc4648() {
+ assert_eq!(decode(RFC4648 { padding: false }, ","), None)
+ }
+}
diff --git a/nitrocli/Cargo.lock b/nitrocli/Cargo.lock
index 5308712..e4ff98f 100644
--- a/nitrocli/Cargo.lock
+++ b/nitrocli/Cargo.lock
@@ -3,6 +3,10 @@ name = "argparse"
version = "0.2.2"
[[package]]
+name = "base32"
+version = "0.4.0"
+
+[[package]]
name = "bitflags"
version = "1.0.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -54,6 +58,7 @@ name = "nitrocli"
version = "0.2.1"
dependencies = [
"argparse 0.2.2",
+ "base32 0.4.0",
"libc 0.2.45",
"nitrokey 0.3.0",
]
diff --git a/nitrocli/Cargo.toml b/nitrocli/Cargo.toml
index 0fc6482..8440460 100644
--- a/nitrocli/Cargo.toml
+++ b/nitrocli/Cargo.toml
@@ -45,6 +45,10 @@ incremental = false
version = "0.2.2"
path = "../argparse"
+[dependencies.base32]
+version = "0.4.0"
+path = "../base32"
+
[dependencies.libc]
version = "0.2"
path = "../libc"
@@ -55,6 +59,7 @@ path = "../nitrokey"
[replace]
+"base32:0.4.0" = { path = "../base32" }
"cc:1.0.28" = { path = "../cc" }
"libc:0.2.45" = { path = "../libc" }
"nitrokey-sys:3.4.1" = { path = "../nitrokey-sys" }