rand_hc-0.2.0/CHANGELOG.md010064400017500001750000000010031347774404400131510ustar0000000000000000# Changelog All notable changes to this project will be documented in this file. The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/) and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). ## [0.2.0] - 2019-06-12 - Bump minor crate version since rand_core bump is a breaking change - Switch to Edition 2018 ## [0.1.1] - 2019-06-06 - yanked - Bump `rand_core` version - Adjust usage of `#[inline]` ## [0.1.0] - 2018-10-17 - Pulled out of the Rand crate rand_hc-0.2.0/COPYRIGHT010064400017500001750000000010711347154030000126170ustar0000000000000000Copyrights in the Rand project are retained by their contributors. No copyright assignment is required to contribute to the Rand project. For full authorship information, see the version control history. Except as otherwise noted (below and/or in individual files), Rand is licensed under the Apache License, Version 2.0 or or the MIT license or , at your option. The Rand project includes code from the Rust project published under these same licenses. rand_hc-0.2.0/Cargo.toml.orig010064400017500001750000000011471347774404400142400ustar0000000000000000[package] name = "rand_hc" version = "0.2.0" authors = ["The Rand Project Developers"] license = "MIT/Apache-2.0" readme = "README.md" repository = "https://github.com/rust-random/rand" documentation = "https://rust-random.github.io/rand/rand_hc/" homepage = "https://crates.io/crates/rand_hc" description = """ HC128 random number generator """ keywords = ["random", "rng", "hc128"] categories = ["algorithms", "no-std"] edition = "2018" [badges] travis-ci = { repository = "rust-random/rand" } appveyor = { repository = "rust-random/rand" } [dependencies] rand_core = { path = "../rand_core", version = "0.5" } rand_hc-0.2.0/Cargo.toml0000644000000021170000000000000104670ustar00# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO # # When uploading crates to the registry Cargo will automatically # "normalize" Cargo.toml files for maximal compatibility # with all versions of Cargo and also rewrite `path` dependencies # to registry (e.g., crates.io) dependencies # # If you believe there's an error in this file please file an # issue against the rust-lang/cargo repository. If you're # editing this file be aware that the upstream Cargo.toml # will likely look very different (and much more reasonable) [package] edition = "2018" name = "rand_hc" version = "0.2.0" authors = ["The Rand Project Developers"] description = "HC128 random number generator\n" homepage = "https://crates.io/crates/rand_hc" documentation = "https://rust-random.github.io/rand/rand_hc/" readme = "README.md" keywords = ["random", "rng", "hc128"] categories = ["algorithms", "no-std"] license = "MIT/Apache-2.0" repository = "https://github.com/rust-random/rand" [dependencies.rand_core] version = "0.5" [badges.appveyor] repository = "rust-random/rand" [badges.travis-ci] repository = "rust-random/rand" rand_hc-0.2.0/LICENSE-APACHE010064400017500001750000000251411347154030000132540ustar0000000000000000 Apache License Version 2.0, January 2004 https://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. 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See the License for the specific language governing permissions and limitations under the License. rand_hc-0.2.0/LICENSE-MIT010064400017500001750000000020561347154030000127640ustar0000000000000000Copyright 2018 Developers of the Rand project 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. 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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. rand_hc-0.2.0/README.md010064400017500001750000000036721347766754400126460ustar0000000000000000# rand_hc [![Build Status](https://travis-ci.org/rust-random/rand.svg)](https://travis-ci.org/rust-random/rand) [![Build Status](https://ci.appveyor.com/api/projects/status/github/rust-random/rand?svg=true)](https://ci.appveyor.com/project/rust-random/rand) [![Latest version](https://img.shields.io/crates/v/rand_hc.svg)](https://crates.io/crates/rand_hc) [[![Book](https://img.shields.io/badge/book-master-yellow.svg)](https://rust-random.github.io/book/) [![API](https://img.shields.io/badge/api-master-yellow.svg)](https://rust-random.github.io/rand/rand_hc) [![API](https://docs.rs/rand_hc/badge.svg)](https://docs.rs/rand_hc) [![Minimum rustc version](https://img.shields.io/badge/rustc-1.32+-lightgray.svg)](https://github.com/rust-random/rand#rust-version-requirements) A cryptographically secure random number generator that uses the HC-128 algorithm. HC-128 is a stream cipher designed by Hongjun Wu[^1], that we use as an RNG. It is selected as one of the "stream ciphers suitable for widespread adoption" by eSTREAM[^2]. Links: - [API documentation (master)](https://rust-random.github.io/rand/rand_hc) - [API documentation (docs.rs)](https://docs.rs/rand_hc) - [Changelog](https://github.com/rust-random/rand/blob/master/rand_hc/CHANGELOG.md) [rand]: https://crates.io/crates/rand [^1]: Hongjun Wu (2008). ["The Stream Cipher HC-128"]( http://www.ecrypt.eu.org/stream/p3ciphers/hc/hc128_p3.pdf). *The eSTREAM Finalists*, LNCS 4986, pp. 39–47, Springer-Verlag. [^2]: [eSTREAM: the ECRYPT Stream Cipher Project]( http://www.ecrypt.eu.org/stream/) ## Crate Features `rand_hc` is `no_std` compatible. It does not require any functionality outside of the `core` lib, thus there are no features to configure. # License `rand_hc` is distributed under the terms of both the MIT license and the Apache License (Version 2.0). See [LICENSE-APACHE](LICENSE-APACHE) and [LICENSE-MIT](LICENSE-MIT), and [COPYRIGHT](COPYRIGHT) for details. rand_hc-0.2.0/src/hc128.rs010064400017500001750000000471211347766754400133460ustar0000000000000000// Copyright 2018 Developers of the Rand project. // // Licensed under the Apache License, Version 2.0 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. //! The HC-128 random number generator. use core::fmt; use rand_core::{CryptoRng, RngCore, SeedableRng, Error, le}; use rand_core::block::{BlockRngCore, BlockRng}; const SEED_WORDS: usize = 8; // 128 bit key followed by 128 bit iv /// A cryptographically secure random number generator that uses the HC-128 /// algorithm. /// /// HC-128 is a stream cipher designed by Hongjun Wu[^1], that we use as an /// RNG. It is selected as one of the "stream ciphers suitable for widespread /// adoption" by eSTREAM[^2]. /// /// HC-128 is an array based RNG. In this it is similar to RC-4 and ISAAC before /// it, but those have never been proven cryptographically secure (or have even /// been significantly compromised, as in the case of RC-4[^5]). /// /// Because HC-128 works with simple indexing into a large array and with a few /// operations that parallelize well, it has very good performance. The size of /// the array it needs, 4kb, can however be a disadvantage. /// /// This implementation is not based on the version of HC-128 submitted to the /// eSTREAM contest, but on a later version by the author with a few small /// improvements from December 15, 2009[^3]. /// /// HC-128 has no known weaknesses that are easier to exploit than doing a /// brute-force search of 2128. A very comprehensive analysis of the /// current state of known attacks / weaknesses of HC-128 is given in *Some /// Results On Analysis And Implementation Of HC-128 Stream Cipher*[^4]. /// /// The average cycle length is expected to be /// 21024*32+10-1 = 232777. /// We support seeding with a 256-bit array, which matches the 128-bit key /// concatenated with a 128-bit IV from the stream cipher. /// /// This implementation uses an output buffer of sixteen `u32` words, and uses /// [`BlockRng`] to implement the [`RngCore`] methods. /// /// ## References /// [^1]: Hongjun Wu (2008). ["The Stream Cipher HC-128"]( /// http://www.ecrypt.eu.org/stream/p3ciphers/hc/hc128_p3.pdf). /// *The eSTREAM Finalists*, LNCS 4986, pp. 39–47, Springer-Verlag. /// /// [^2]: [eSTREAM: the ECRYPT Stream Cipher Project]( /// http://www.ecrypt.eu.org/stream/) /// /// [^3]: Hongjun Wu, [Stream Ciphers HC-128 and HC-256]( /// https://www.ntu.edu.sg/home/wuhj/research/hc/index.html) /// /// [^4]: Shashwat Raizada (January 2015),["Some Results On Analysis And /// Implementation Of HC-128 Stream Cipher"]( /// http://library.isical.ac.in:8080/jspui/bitstream/123456789/6636/1/TH431.pdf). /// /// [^5]: Internet Engineering Task Force (February 2015), /// ["Prohibiting RC4 Cipher Suites"](https://tools.ietf.org/html/rfc7465). #[derive(Clone, Debug)] pub struct Hc128Rng(BlockRng); impl RngCore for Hc128Rng { #[inline] fn next_u32(&mut self) -> u32 { self.0.next_u32() } #[inline] fn next_u64(&mut self) -> u64 { self.0.next_u64() } #[inline] fn fill_bytes(&mut self, dest: &mut [u8]) { self.0.fill_bytes(dest) } #[inline] fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error> { self.0.try_fill_bytes(dest) } } impl SeedableRng for Hc128Rng { type Seed = ::Seed; #[inline] fn from_seed(seed: Self::Seed) -> Self { Hc128Rng(BlockRng::::from_seed(seed)) } #[inline] fn from_rng(rng: R) -> Result { BlockRng::::from_rng(rng).map(Hc128Rng) } } impl CryptoRng for Hc128Rng {} /// The core of `Hc128Rng`, used with `BlockRng`. #[derive(Clone)] pub struct Hc128Core { t: [u32; 1024], counter1024: usize, } // Custom Debug implementation that does not expose the internal state impl fmt::Debug for Hc128Core { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { write!(f, "Hc128Core {{}}") } } impl BlockRngCore for Hc128Core { type Item = u32; type Results = [u32; 16]; fn generate(&mut self, results: &mut Self::Results) { assert!(self.counter1024 % 16 == 0); let cc = self.counter1024 % 512; let dd = (cc + 16) % 512; let ee = cc.wrapping_sub(16) % 512; if self.counter1024 & 512 == 0 { // P block results[0] = self.step_p(cc+0, cc+1, ee+13, ee+6, ee+4); results[1] = self.step_p(cc+1, cc+2, ee+14, ee+7, ee+5); results[2] = self.step_p(cc+2, cc+3, ee+15, ee+8, ee+6); results[3] = self.step_p(cc+3, cc+4, cc+0, ee+9, ee+7); results[4] = self.step_p(cc+4, cc+5, cc+1, ee+10, ee+8); results[5] = self.step_p(cc+5, cc+6, cc+2, ee+11, ee+9); results[6] = self.step_p(cc+6, cc+7, cc+3, ee+12, ee+10); results[7] = self.step_p(cc+7, cc+8, cc+4, ee+13, ee+11); results[8] = self.step_p(cc+8, cc+9, cc+5, ee+14, ee+12); results[9] = self.step_p(cc+9, cc+10, cc+6, ee+15, ee+13); results[10] = self.step_p(cc+10, cc+11, cc+7, cc+0, ee+14); results[11] = self.step_p(cc+11, cc+12, cc+8, cc+1, ee+15); results[12] = self.step_p(cc+12, cc+13, cc+9, cc+2, cc+0); results[13] = self.step_p(cc+13, cc+14, cc+10, cc+3, cc+1); results[14] = self.step_p(cc+14, cc+15, cc+11, cc+4, cc+2); results[15] = self.step_p(cc+15, dd+0, cc+12, cc+5, cc+3); } else { // Q block results[0] = self.step_q(cc+0, cc+1, ee+13, ee+6, ee+4); results[1] = self.step_q(cc+1, cc+2, ee+14, ee+7, ee+5); results[2] = self.step_q(cc+2, cc+3, ee+15, ee+8, ee+6); results[3] = self.step_q(cc+3, cc+4, cc+0, ee+9, ee+7); results[4] = self.step_q(cc+4, cc+5, cc+1, ee+10, ee+8); results[5] = self.step_q(cc+5, cc+6, cc+2, ee+11, ee+9); results[6] = self.step_q(cc+6, cc+7, cc+3, ee+12, ee+10); results[7] = self.step_q(cc+7, cc+8, cc+4, ee+13, ee+11); results[8] = self.step_q(cc+8, cc+9, cc+5, ee+14, ee+12); results[9] = self.step_q(cc+9, cc+10, cc+6, ee+15, ee+13); results[10] = self.step_q(cc+10, cc+11, cc+7, cc+0, ee+14); results[11] = self.step_q(cc+11, cc+12, cc+8, cc+1, ee+15); results[12] = self.step_q(cc+12, cc+13, cc+9, cc+2, cc+0); results[13] = self.step_q(cc+13, cc+14, cc+10, cc+3, cc+1); results[14] = self.step_q(cc+14, cc+15, cc+11, cc+4, cc+2); results[15] = self.step_q(cc+15, dd+0, cc+12, cc+5, cc+3); } self.counter1024 = self.counter1024.wrapping_add(16); } } impl Hc128Core { // One step of HC-128, update P and generate 32 bits keystream #[inline(always)] fn step_p(&mut self, i: usize, i511: usize, i3: usize, i10: usize, i12: usize) -> u32 { let (p, q) = self.t.split_at_mut(512); // FIXME: it would be great if we the bounds checks here could be // optimized out, and we would not need unsafe. // This improves performance by about 7%. unsafe { let temp0 = p.get_unchecked(i511).rotate_right(23); let temp1 = p.get_unchecked(i3).rotate_right(10); let temp2 = p.get_unchecked(i10).rotate_right(8); *p.get_unchecked_mut(i) = p.get_unchecked(i) .wrapping_add(temp2) .wrapping_add(temp0 ^ temp1); let temp3 = { // The h1 function in HC-128 let a = *p.get_unchecked(i12) as u8; let c = (p.get_unchecked(i12) >> 16) as u8; q[a as usize].wrapping_add(q[256 + c as usize]) }; temp3 ^ p.get_unchecked(i) } } // One step of HC-128, update Q and generate 32 bits keystream // Similar to `step_p`, but `p` and `q` are swapped, and the rotates are to // the left instead of to the right. #[inline(always)] fn step_q(&mut self, i: usize, i511: usize, i3: usize, i10: usize, i12: usize) -> u32 { let (p, q) = self.t.split_at_mut(512); unsafe { let temp0 = q.get_unchecked(i511).rotate_left(23); let temp1 = q.get_unchecked(i3).rotate_left(10); let temp2 = q.get_unchecked(i10).rotate_left(8); *q.get_unchecked_mut(i) = q.get_unchecked(i) .wrapping_add(temp2) .wrapping_add(temp0 ^ temp1); let temp3 = { // The h2 function in HC-128 let a = *q.get_unchecked(i12) as u8; let c = (q.get_unchecked(i12) >> 16) as u8; p[a as usize].wrapping_add(p[256 + c as usize]) }; temp3 ^ q.get_unchecked(i) } } fn sixteen_steps(&mut self) { assert!(self.counter1024 % 16 == 0); let cc = self.counter1024 % 512; let dd = (cc + 16) % 512; let ee = cc.wrapping_sub(16) % 512; if self.counter1024 < 512 { // P block self.t[cc+0] = self.step_p(cc+0, cc+1, ee+13, ee+6, ee+4); self.t[cc+1] = self.step_p(cc+1, cc+2, ee+14, ee+7, ee+5); self.t[cc+2] = self.step_p(cc+2, cc+3, ee+15, ee+8, ee+6); self.t[cc+3] = self.step_p(cc+3, cc+4, cc+0, ee+9, ee+7); self.t[cc+4] = self.step_p(cc+4, cc+5, cc+1, ee+10, ee+8); self.t[cc+5] = self.step_p(cc+5, cc+6, cc+2, ee+11, ee+9); self.t[cc+6] = self.step_p(cc+6, cc+7, cc+3, ee+12, ee+10); self.t[cc+7] = self.step_p(cc+7, cc+8, cc+4, ee+13, ee+11); self.t[cc+8] = self.step_p(cc+8, cc+9, cc+5, ee+14, ee+12); self.t[cc+9] = self.step_p(cc+9, cc+10, cc+6, ee+15, ee+13); self.t[cc+10] = self.step_p(cc+10, cc+11, cc+7, cc+0, ee+14); self.t[cc+11] = self.step_p(cc+11, cc+12, cc+8, cc+1, ee+15); self.t[cc+12] = self.step_p(cc+12, cc+13, cc+9, cc+2, cc+0); self.t[cc+13] = self.step_p(cc+13, cc+14, cc+10, cc+3, cc+1); self.t[cc+14] = self.step_p(cc+14, cc+15, cc+11, cc+4, cc+2); self.t[cc+15] = self.step_p(cc+15, dd+0, cc+12, cc+5, cc+3); } else { // Q block self.t[cc+512+0] = self.step_q(cc+0, cc+1, ee+13, ee+6, ee+4); self.t[cc+512+1] = self.step_q(cc+1, cc+2, ee+14, ee+7, ee+5); self.t[cc+512+2] = self.step_q(cc+2, cc+3, ee+15, ee+8, ee+6); self.t[cc+512+3] = self.step_q(cc+3, cc+4, cc+0, ee+9, ee+7); self.t[cc+512+4] = self.step_q(cc+4, cc+5, cc+1, ee+10, ee+8); self.t[cc+512+5] = self.step_q(cc+5, cc+6, cc+2, ee+11, ee+9); self.t[cc+512+6] = self.step_q(cc+6, cc+7, cc+3, ee+12, ee+10); self.t[cc+512+7] = self.step_q(cc+7, cc+8, cc+4, ee+13, ee+11); self.t[cc+512+8] = self.step_q(cc+8, cc+9, cc+5, ee+14, ee+12); self.t[cc+512+9] = self.step_q(cc+9, cc+10, cc+6, ee+15, ee+13); self.t[cc+512+10] = self.step_q(cc+10, cc+11, cc+7, cc+0, ee+14); self.t[cc+512+11] = self.step_q(cc+11, cc+12, cc+8, cc+1, ee+15); self.t[cc+512+12] = self.step_q(cc+12, cc+13, cc+9, cc+2, cc+0); self.t[cc+512+13] = self.step_q(cc+13, cc+14, cc+10, cc+3, cc+1); self.t[cc+512+14] = self.step_q(cc+14, cc+15, cc+11, cc+4, cc+2); self.t[cc+512+15] = self.step_q(cc+15, dd+0, cc+12, cc+5, cc+3); } self.counter1024 += 16; } // Initialize an HC-128 random number generator. The seed has to be // 256 bits in length (`[u32; 8]`), matching the 128 bit `key` followed by // 128 bit `iv` when HC-128 where to be used as a stream cipher. #[inline(always)] // single use: SeedableRng::from_seed fn init(seed: [u32; SEED_WORDS]) -> Self { #[inline] fn f1(x: u32) -> u32 { x.rotate_right(7) ^ x.rotate_right(18) ^ (x >> 3) } #[inline] fn f2(x: u32) -> u32 { x.rotate_right(17) ^ x.rotate_right(19) ^ (x >> 10) } let mut t = [0u32; 1024]; // Expand the key and iv into P and Q let (key, iv) = seed.split_at(4); t[..4].copy_from_slice(key); t[4..8].copy_from_slice(key); t[8..12].copy_from_slice(iv); t[12..16].copy_from_slice(iv); // Generate the 256 intermediate values W[16] ... W[256+16-1], and // copy the last 16 generated values to the start op P. for i in 16..256+16 { t[i] = f2(t[i-2]).wrapping_add(t[i-7]).wrapping_add(f1(t[i-15])) .wrapping_add(t[i-16]).wrapping_add(i as u32); } { let (p1, p2) = t.split_at_mut(256); p1[0..16].copy_from_slice(&p2[0..16]); } // Generate both the P and Q tables for i in 16..1024 { t[i] = f2(t[i-2]).wrapping_add(t[i-7]).wrapping_add(f1(t[i-15])) .wrapping_add(t[i-16]).wrapping_add(256 + i as u32); } let mut core = Self { t, counter1024: 0 }; // run the cipher 1024 steps for _ in 0..64 { core.sixteen_steps() }; core.counter1024 = 0; core } } impl SeedableRng for Hc128Core { type Seed = [u8; SEED_WORDS*4]; /// Create an HC-128 random number generator with a seed. The seed has to be /// 256 bits in length, matching the 128 bit `key` followed by 128 bit `iv` /// when HC-128 where to be used as a stream cipher. fn from_seed(seed: Self::Seed) -> Self { let mut seed_u32 = [0u32; SEED_WORDS]; le::read_u32_into(&seed, &mut seed_u32); Self::init(seed_u32) } } impl CryptoRng for Hc128Core {} #[cfg(test)] mod test { use ::rand_core::{RngCore, SeedableRng}; use super::Hc128Rng; #[test] // Test vector 1 from the paper "The Stream Cipher HC-128" fn test_hc128_true_values_a() { let seed = [0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0, // key 0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0]; // iv let mut rng = Hc128Rng::from_seed(seed); let mut results = [0u32; 16]; for i in results.iter_mut() { *i = rng.next_u32(); } let expected = [0x73150082, 0x3bfd03a0, 0xfb2fd77f, 0xaa63af0e, 0xde122fc6, 0xa7dc29b6, 0x62a68527, 0x8b75ec68, 0x9036db1e, 0x81896005, 0x00ade078, 0x491fbf9a, 0x1cdc3013, 0x6c3d6e24, 0x90f664b2, 0x9cd57102]; assert_eq!(results, expected); } #[test] // Test vector 2 from the paper "The Stream Cipher HC-128" fn test_hc128_true_values_b() { let seed = [0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0, // key 1,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0]; // iv let mut rng = Hc128Rng::from_seed(seed); let mut results = [0u32; 16]; for i in results.iter_mut() { *i = rng.next_u32(); } let expected = [0xc01893d5, 0xb7dbe958, 0x8f65ec98, 0x64176604, 0x36fc6724, 0xc82c6eec, 0x1b1c38a7, 0xc9b42a95, 0x323ef123, 0x0a6a908b, 0xce757b68, 0x9f14f7bb, 0xe4cde011, 0xaeb5173f, 0x89608c94, 0xb5cf46ca]; assert_eq!(results, expected); } #[test] // Test vector 3 from the paper "The Stream Cipher HC-128" fn test_hc128_true_values_c() { let seed = [0x55,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0, // key 0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0]; // iv let mut rng = Hc128Rng::from_seed(seed); let mut results = [0u32; 16]; for i in results.iter_mut() { *i = rng.next_u32(); } let expected = [0x518251a4, 0x04b4930a, 0xb02af931, 0x0639f032, 0xbcb4a47a, 0x5722480b, 0x2bf99f72, 0xcdc0e566, 0x310f0c56, 0xd3cc83e8, 0x663db8ef, 0x62dfe07f, 0x593e1790, 0xc5ceaa9c, 0xab03806f, 0xc9a6e5a0]; assert_eq!(results, expected); } #[test] fn test_hc128_true_values_u64() { let seed = [0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0, // key 0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0]; // iv let mut rng = Hc128Rng::from_seed(seed); let mut results = [0u64; 8]; for i in results.iter_mut() { *i = rng.next_u64(); } let expected = [0x3bfd03a073150082, 0xaa63af0efb2fd77f, 0xa7dc29b6de122fc6, 0x8b75ec6862a68527, 0x818960059036db1e, 0x491fbf9a00ade078, 0x6c3d6e241cdc3013, 0x9cd5710290f664b2]; assert_eq!(results, expected); // The RNG operates in a P block of 512 results and next a Q block. // After skipping 2*800 u32 results we end up somewhere in the Q block // of the second round for _ in 0..800 { rng.next_u64(); } for i in results.iter_mut() { *i = rng.next_u64(); } let expected = [0xd8c4d6ca84d0fc10, 0xf16a5d91dc66e8e7, 0xd800de5bc37a8653, 0x7bae1f88c0dfbb4c, 0x3bfe1f374e6d4d14, 0x424b55676be3fa06, 0xe3a1e8758cbff579, 0x417f7198c5652bcd]; assert_eq!(results, expected); } #[test] fn test_hc128_true_values_bytes() { let seed = [0x55,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0, // key 0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0]; // iv let mut rng = Hc128Rng::from_seed(seed); let expected = [0x31, 0xf9, 0x2a, 0xb0, 0x32, 0xf0, 0x39, 0x06, 0x7a, 0xa4, 0xb4, 0xbc, 0x0b, 0x48, 0x22, 0x57, 0x72, 0x9f, 0xf9, 0x2b, 0x66, 0xe5, 0xc0, 0xcd, 0x56, 0x0c, 0x0f, 0x31, 0xe8, 0x83, 0xcc, 0xd3, 0xef, 0xb8, 0x3d, 0x66, 0x7f, 0xe0, 0xdf, 0x62, 0x90, 0x17, 0x3e, 0x59, 0x9c, 0xaa, 0xce, 0xc5, 0x6f, 0x80, 0x03, 0xab, 0xa0, 0xe5, 0xa6, 0xc9, 0x60, 0x95, 0x84, 0x7a, 0xa5, 0x68, 0x5a, 0x84, 0xea, 0xd5, 0xf3, 0xea, 0x73, 0xa9, 0xad, 0x01, 0x79, 0x7d, 0xbe, 0x9f, 0xea, 0xe3, 0xf9, 0x74, 0x0e, 0xda, 0x2f, 0xa0, 0xe4, 0x7b, 0x4b, 0x1b, 0xdd, 0x17, 0x69, 0x4a, 0xfe, 0x9f, 0x56, 0x95, 0xad, 0x83, 0x6b, 0x9d, 0x60, 0xa1, 0x99, 0x96, 0x90, 0x00, 0x66, 0x7f, 0xfa, 0x7e, 0x65, 0xe9, 0xac, 0x8b, 0x92, 0x34, 0x77, 0xb4, 0x23, 0xd0, 0xb9, 0xab, 0xb1, 0x47, 0x7d, 0x4a, 0x13, 0x0a]; // Pick a somewhat large buffer so we can test filling with the // remainder from `state.results`, directly filling the buffer, and // filling the remainder of the buffer. let mut buffer = [0u8; 16*4*2]; // Consume a value so that we have a remainder. assert!(rng.next_u64() == 0x04b4930a518251a4); rng.fill_bytes(&mut buffer); // [u8; 128] doesn't implement PartialEq assert_eq!(buffer.len(), expected.len()); for (b, e) in buffer.iter().zip(expected.iter()) { assert_eq!(b, e); } } #[test] fn test_hc128_clone() { let seed = [0x55,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0, // key 0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0]; // iv let mut rng1 = Hc128Rng::from_seed(seed); let mut rng2 = rng1.clone(); for _ in 0..16 { assert_eq!(rng1.next_u32(), rng2.next_u32()); } } } rand_hc-0.2.0/src/lib.rs010064400017500001750000000014361347774404400132550ustar0000000000000000// Copyright 2018 Developers of the Rand project. // // Licensed under the Apache License, Version 2.0 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. //! The HC128 random number generator. #![doc(html_logo_url = "https://www.rust-lang.org/logos/rust-logo-128x128-blk.png", html_favicon_url = "https://www.rust-lang.org/favicon.ico", html_root_url = "https://rust-random.github.io/rand/")] #![deny(missing_docs)] #![deny(missing_debug_implementations)] #![doc(test(attr(allow(unused_variables), deny(warnings))))] #![no_std] mod hc128; pub use hc128::{Hc128Rng, Hc128Core}; rand_hc-0.2.0/.cargo_vcs_info.json0000644000000001120000000000000124620ustar00{ "git": { "sha1": "5610bdae3acdb0324f5636bb3e4a21e6324ead72" } }