diff options
Diffstat (limited to 'vendor/sha-1-0.8.2/src')
| -rw-r--r-- | vendor/sha-1-0.8.2/src/aarch64.rs | 9 | ||||
| -rw-r--r-- | vendor/sha-1-0.8.2/src/consts.rs | 19 | ||||
| -rw-r--r-- | vendor/sha-1-0.8.2/src/lib.rs | 141 | ||||
| -rw-r--r-- | vendor/sha-1-0.8.2/src/utils.rs | 300 |
4 files changed, 0 insertions, 469 deletions
diff --git a/vendor/sha-1-0.8.2/src/aarch64.rs b/vendor/sha-1-0.8.2/src/aarch64.rs deleted file mode 100644 index d3cffecd7..000000000 --- a/vendor/sha-1-0.8.2/src/aarch64.rs +++ /dev/null @@ -1,9 +0,0 @@ -// TODO: Import those from libc, see https://github.com/rust-lang/libc/pull/1638 -const AT_HWCAP: u64 = 16; -const HWCAP_SHA1: u64 = 32; - -#[inline(always)] -pub fn sha1_supported() -> bool { - let hwcaps: u64 = unsafe { ::libc::getauxval(AT_HWCAP) }; - (hwcaps & HWCAP_SHA1) != 0 -} diff --git a/vendor/sha-1-0.8.2/src/consts.rs b/vendor/sha-1-0.8.2/src/consts.rs deleted file mode 100644 index 628d4d6e0..000000000 --- a/vendor/sha-1-0.8.2/src/consts.rs +++ /dev/null @@ -1,19 +0,0 @@ -#![cfg_attr(feature = "cargo-clippy", allow(unreadable_literal))] - -pub const STATE_LEN: usize = 5; - -#[cfg(any(not(feature = "asm"), feature = "asm-aarch64"))] -pub const BLOCK_LEN: usize = 16; - -#[cfg(any(not(feature = "asm"), feature = "asm-aarch64"))] -pub const K0: u32 = 0x5A827999u32; -#[cfg(any(not(feature = "asm"), feature = "asm-aarch64"))] -pub const K1: u32 = 0x6ED9EBA1u32; -#[cfg(any(not(feature = "asm"), feature = "asm-aarch64"))] -pub const K2: u32 = 0x8F1BBCDCu32; -#[cfg(any(not(feature = "asm"), feature = "asm-aarch64"))] -pub const K3: u32 = 0xCA62C1D6u32; - -pub const H: [u32; STATE_LEN] = [ - 0x67452301, 0xEFCDAB89, 0x98BADCFE, 0x10325476, 0xC3D2E1F0 -]; diff --git a/vendor/sha-1-0.8.2/src/lib.rs b/vendor/sha-1-0.8.2/src/lib.rs deleted file mode 100644 index 374c234c2..000000000 --- a/vendor/sha-1-0.8.2/src/lib.rs +++ /dev/null @@ -1,141 +0,0 @@ -//! An implementation of the [SHA-1][1] cryptographic hash algorithm. -//! -//! # Usage -//! -//! ```rust -//! # #[macro_use] extern crate hex_literal; -//! # extern crate sha1; -//! # fn main() { -//! use sha1::{Sha1, Digest}; -//! -//! // create a Sha1 object -//! let mut hasher = Sha1::new(); -//! -//! // process input message -//! hasher.input(b"hello world"); -//! -//! // acquire hash digest in the form of GenericArray, -//! // which in this case is equivalent to [u8; 20] -//! let result = hasher.result(); -//! assert_eq!(result[..], hex!("2aae6c35c94fcfb415dbe95f408b9ce91ee846ed")); -//! # } -//! ``` -//! -//! Also see [RustCrypto/hashes][2] readme. -//! -//! [1]: https://en.wikipedia.org/wiki/SHA-1 -//! [2]: https://github.com/RustCrypto/hashes -#![no_std] -#![doc(html_logo_url = - "https://raw.githubusercontent.com/RustCrypto/meta/master/logo_small.png")] - -// Give relevant error messages if the user tries to enable AArch64 asm on unsupported platforms. -#[cfg(all(feature = "asm-aarch64", target_arch = "aarch64", not(target_os = "linux")))] -compile_error!("Your OS isn’t yet supported for runtime-checking of AArch64 features."); -#[cfg(all(feature = "asm-aarch64", target_os = "linux", not(target_arch = "aarch64")))] -compile_error!("Enable the \"asm\" feature instead of \"asm-aarch64\" on non-AArch64 Linux systems."); -#[cfg(all(not(feature = "asm-aarch64"), feature = "asm", target_arch = "aarch64", target_os = "linux"))] -compile_error!("Enable the \"asm-aarch64\" feature on AArch64 if you want to use asm."); - -extern crate block_buffer; -#[macro_use] extern crate opaque_debug; -#[macro_use] pub extern crate digest; -#[cfg(feature = "std")] -extern crate std; -#[cfg(any(not(feature = "asm"), feature = "asm-aarch64"))] -extern crate fake_simd as simd; -#[cfg(feature = "asm-aarch64")] -extern crate libc; - -#[cfg(feature = "asm")] -extern crate sha1_asm; -#[cfg(all(feature = "asm", not(feature = "asm-aarch64")))] -#[inline(always)] -fn compress(state: &mut [u32; 5], block: &GenericArray<u8, U64>) { - let block: &[u8; 64] = unsafe { core::mem::transmute(block) }; - sha1_asm::compress(state, block); -} -#[cfg(feature = "asm-aarch64")] -mod aarch64; -#[cfg(feature = "asm-aarch64")] -#[inline(always)] -fn compress(state: &mut [u32; 5], block: &GenericArray<u8, U64>) { - // TODO: Replace this platform-specific call with is_aarch64_feature_detected!("sha1") once - // that macro is stabilised and https://github.com/rust-lang/rfcs/pull/2725 is implemented - // to let us use it on no_std. - if aarch64::sha1_supported() { - let block: &[u8; 64] = unsafe { core::mem::transmute(block) }; - sha1_asm::compress(state, block); - } else { - utils::compress(state, block); - } -} - -#[cfg(any(not(feature = "asm"), feature = "asm-aarch64"))] -mod utils; -#[cfg(not(feature = "asm"))] -use utils::compress; - -pub use digest::Digest; -use digest::{Input, BlockInput, FixedOutput, Reset}; -use digest::generic_array::GenericArray; -use digest::generic_array::typenum::{U20, U64}; -use block_buffer::BlockBuffer; -use block_buffer::byteorder::{BE, ByteOrder}; - -mod consts; -use consts::{STATE_LEN, H}; - -/// Structure representing the state of a SHA-1 computation -#[derive(Clone)] -pub struct Sha1 { - h: [u32; STATE_LEN], - len: u64, - buffer: BlockBuffer<U64>, -} - -impl Default for Sha1 { - fn default() -> Self { - Sha1{ h: H, len: 0u64, buffer: Default::default() } - } -} - -impl BlockInput for Sha1 { - type BlockSize = U64; -} - -impl Input for Sha1 { - fn input<B: AsRef<[u8]>>(&mut self, input: B) { - let input = input.as_ref(); - // Assumes that `length_bits<<3` will not overflow - self.len += input.len() as u64; - let state = &mut self.h; - self.buffer.input(input, |d| compress(state, d)); - } -} - -impl FixedOutput for Sha1 { - type OutputSize = U20; - - fn fixed_result(mut self) -> GenericArray<u8, Self::OutputSize> { - { - let state = &mut self.h; - let l = self.len << 3; - self.buffer.len64_padding::<BE, _>(l, |d| compress(state, d)); - } - let mut out = GenericArray::default(); - BE::write_u32_into(&self.h,&mut out); - out - } -} - -impl Reset for Sha1 { - fn reset(&mut self) { - self.h = H; - self.len = 0; - self.buffer.reset(); - } -} - -impl_opaque_debug!(Sha1); -impl_write!(Sha1); diff --git a/vendor/sha-1-0.8.2/src/utils.rs b/vendor/sha-1-0.8.2/src/utils.rs deleted file mode 100644 index e8b941a6e..000000000 --- a/vendor/sha-1-0.8.2/src/utils.rs +++ /dev/null @@ -1,300 +0,0 @@ -#![cfg_attr(feature = "cargo-clippy", allow(many_single_char_names))] - -use consts::{BLOCK_LEN, K0, K1, K2, K3}; -use block_buffer::byteorder::{BE, ByteOrder}; -use simd::u32x4; -use digest::generic_array::GenericArray; -use digest::generic_array::typenum::U64; - -type Block = GenericArray<u8, U64>; - -/// Not an intrinsic, but gets the first element of a vector. -#[inline] -pub fn sha1_first(w0: u32x4) -> u32 { - w0.0 -} - -/// Not an intrinsic, but adds a word to the first element of a vector. -#[inline] -pub fn sha1_first_add(e: u32, w0: u32x4) -> u32x4 { - let u32x4(a, b, c, d) = w0; - u32x4(e.wrapping_add(a), b, c, d) -} - -/// Emulates `llvm.x86.sha1msg1` intrinsic. -fn sha1msg1(a: u32x4, b: u32x4) -> u32x4 { - let u32x4(_, _, w2, w3) = a; - let u32x4(w4, w5, _, _) = b; - a ^ u32x4(w2, w3, w4, w5) -} - -/// Emulates `llvm.x86.sha1msg2` intrinsic. -fn sha1msg2(a: u32x4, b: u32x4) -> u32x4 { - let u32x4(x0, x1, x2, x3) = a; - let u32x4(_, w13, w14, w15) = b; - - let w16 = (x0 ^ w13).rotate_left(1); - let w17 = (x1 ^ w14).rotate_left(1); - let w18 = (x2 ^ w15).rotate_left(1); - let w19 = (x3 ^ w16).rotate_left(1); - - u32x4(w16, w17, w18, w19) -} - -/// Performs 4 rounds of the message schedule update. -/* -pub fn sha1_schedule_x4(v0: u32x4, v1: u32x4, v2: u32x4, v3: u32x4) -> u32x4 { - sha1msg2(sha1msg1(v0, v1) ^ v2, v3) -} -*/ - -/// Emulates `llvm.x86.sha1nexte` intrinsic. -#[inline] -fn sha1_first_half(abcd: u32x4, msg: u32x4) -> u32x4 { - sha1_first_add(sha1_first(abcd).rotate_left(30), msg) -} - -/// Emulates `llvm.x86.sha1rnds4` intrinsic. -/// Performs 4 rounds of the message block digest. -fn sha1_digest_round_x4(abcd: u32x4, work: u32x4, i: i8) -> u32x4 { - const K0V: u32x4 = u32x4(K0, K0, K0, K0); - const K1V: u32x4 = u32x4(K1, K1, K1, K1); - const K2V: u32x4 = u32x4(K2, K2, K2, K2); - const K3V: u32x4 = u32x4(K3, K3, K3, K3); - - match i { - 0 => sha1rnds4c(abcd, work + K0V), - 1 => sha1rnds4p(abcd, work + K1V), - 2 => sha1rnds4m(abcd, work + K2V), - 3 => sha1rnds4p(abcd, work + K3V), - _ => unreachable!("unknown icosaround index"), - } -} - -/// Not an intrinsic, but helps emulate `llvm.x86.sha1rnds4` intrinsic. -fn sha1rnds4c(abcd: u32x4, msg: u32x4) -> u32x4 { - let u32x4(mut a, mut b, mut c, mut d) = abcd; - let u32x4(t, u, v, w) = msg; - let mut e = 0u32; - - macro_rules! bool3ary_202 { - ($a:expr, $b:expr, $c:expr) => ($c ^ ($a & ($b ^ $c))) - } // Choose, MD5F, SHA1C - - e = e.wrapping_add(a.rotate_left(5)) - .wrapping_add(bool3ary_202!(b, c, d)) - .wrapping_add(t); - b = b.rotate_left(30); - - d = d.wrapping_add(e.rotate_left(5)) - .wrapping_add(bool3ary_202!(a, b, c)) - .wrapping_add(u); - a = a.rotate_left(30); - - c = c.wrapping_add(d.rotate_left(5)) - .wrapping_add(bool3ary_202!(e, a, b)) - .wrapping_add(v); - e = e.rotate_left(30); - - b = b.wrapping_add(c.rotate_left(5)) - .wrapping_add(bool3ary_202!(d, e, a)) - .wrapping_add(w); - d = d.rotate_left(30); - - u32x4(b, c, d, e) -} - -/// Not an intrinsic, but helps emulate `llvm.x86.sha1rnds4` intrinsic. -fn sha1rnds4p(abcd: u32x4, msg: u32x4) -> u32x4 { - let u32x4(mut a, mut b, mut c, mut d) = abcd; - let u32x4(t, u, v, w) = msg; - let mut e = 0u32; - - macro_rules! bool3ary_150 { - ($a:expr, $b:expr, $c:expr) => ($a ^ $b ^ $c) - } // Parity, XOR, MD5H, SHA1P - - e = e.wrapping_add(a.rotate_left(5)) - .wrapping_add(bool3ary_150!(b, c, d)) - .wrapping_add(t); - b = b.rotate_left(30); - - d = d.wrapping_add(e.rotate_left(5)) - .wrapping_add(bool3ary_150!(a, b, c)) - .wrapping_add(u); - a = a.rotate_left(30); - - c = c.wrapping_add(d.rotate_left(5)) - .wrapping_add(bool3ary_150!(e, a, b)) - .wrapping_add(v); - e = e.rotate_left(30); - - b = b.wrapping_add(c.rotate_left(5)) - .wrapping_add(bool3ary_150!(d, e, a)) - .wrapping_add(w); - d = d.rotate_left(30); - - u32x4(b, c, d, e) -} - -/// Not an intrinsic, but helps emulate `llvm.x86.sha1rnds4` intrinsic. -fn sha1rnds4m(abcd: u32x4, msg: u32x4) -> u32x4 { - let u32x4(mut a, mut b, mut c, mut d) = abcd; - let u32x4(t, u, v, w) = msg; - let mut e = 0u32; - - macro_rules! bool3ary_232 { - ($a:expr, $b:expr, $c:expr) => (($a & $b) ^ ($a & $c) ^ ($b & $c)) - } // Majority, SHA1M - - e = e.wrapping_add(a.rotate_left(5)) - .wrapping_add(bool3ary_232!(b, c, d)) - .wrapping_add(t); - b = b.rotate_left(30); - - d = d.wrapping_add(e.rotate_left(5)) - .wrapping_add(bool3ary_232!(a, b, c)) - .wrapping_add(u); - a = a.rotate_left(30); - - c = c.wrapping_add(d.rotate_left(5)) - .wrapping_add(bool3ary_232!(e, a, b)) - .wrapping_add(v); - e = e.rotate_left(30); - - b = b.wrapping_add(c.rotate_left(5)) - .wrapping_add(bool3ary_232!(d, e, a)) - .wrapping_add(w); - d = d.rotate_left(30); - - u32x4(b, c, d, e) -} - -/// Process a block with the SHA-1 algorithm. -fn sha1_digest_block_u32(state: &mut [u32; 5], block: &[u32; 16]) { - - macro_rules! schedule { - ($v0:expr, $v1:expr, $v2:expr, $v3:expr) => ( - sha1msg2(sha1msg1($v0, $v1) ^ $v2, $v3) - ) - } - - macro_rules! rounds4 { - ($h0:ident, $h1:ident, $wk:expr, $i:expr) => ( - sha1_digest_round_x4($h0, sha1_first_half($h1, $wk), $i) - ) - } - - // Rounds 0..20 - // TODO: replace with `u32x4::load` - let mut h0 = u32x4(state[0], state[1], state[2], state[3]); - let mut w0 = u32x4(block[0], block[1], block[2], block[3]); - let mut h1 = sha1_digest_round_x4(h0, sha1_first_add(state[4], w0), 0); - let mut w1 = u32x4(block[4], block[5], block[6], block[7]); - h0 = rounds4!(h1, h0, w1, 0); - let mut w2 = u32x4(block[8], block[9], block[10], block[11]); - h1 = rounds4!(h0, h1, w2, 0); - let mut w3 = u32x4(block[12], block[13], block[14], block[15]); - h0 = rounds4!(h1, h0, w3, 0); - let mut w4 = schedule!(w0, w1, w2, w3); - h1 = rounds4!(h0, h1, w4, 0); - - // Rounds 20..40 - w0 = schedule!(w1, w2, w3, w4); - h0 = rounds4!(h1, h0, w0, 1); - w1 = schedule!(w2, w3, w4, w0); - h1 = rounds4!(h0, h1, w1, 1); - w2 = schedule!(w3, w4, w0, w1); - h0 = rounds4!(h1, h0, w2, 1); - w3 = schedule!(w4, w0, w1, w2); - h1 = rounds4!(h0, h1, w3, 1); - w4 = schedule!(w0, w1, w2, w3); - h0 = rounds4!(h1, h0, w4, 1); - - // Rounds 40..60 - w0 = schedule!(w1, w2, w3, w4); - h1 = rounds4!(h0, h1, w0, 2); - w1 = schedule!(w2, w3, w4, w0); - h0 = rounds4!(h1, h0, w1, 2); - w2 = schedule!(w3, w4, w0, w1); - h1 = rounds4!(h0, h1, w2, 2); - w3 = schedule!(w4, w0, w1, w2); - h0 = rounds4!(h1, h0, w3, 2); - w4 = schedule!(w0, w1, w2, w3); - h1 = rounds4!(h0, h1, w4, 2); - - // Rounds 60..80 - w0 = schedule!(w1, w2, w3, w4); - h0 = rounds4!(h1, h0, w0, 3); - w1 = schedule!(w2, w3, w4, w0); - h1 = rounds4!(h0, h1, w1, 3); - w2 = schedule!(w3, w4, w0, w1); - h0 = rounds4!(h1, h0, w2, 3); - w3 = schedule!(w4, w0, w1, w2); - h1 = rounds4!(h0, h1, w3, 3); - w4 = schedule!(w0, w1, w2, w3); - h0 = rounds4!(h1, h0, w4, 3); - - let e = sha1_first(h1).rotate_left(30); - let u32x4(a, b, c, d) = h0; - - state[0] = state[0].wrapping_add(a); - state[1] = state[1].wrapping_add(b); - state[2] = state[2].wrapping_add(c); - state[3] = state[3].wrapping_add(d); - state[4] = state[4].wrapping_add(e); -} - -/// Process a block with the SHA-1 algorithm. (See more...) -/// -/// SHA-1 is a cryptographic hash function, and as such, it operates -/// on an arbitrary number of bytes. This function operates on a fixed -/// number of bytes. If you call this function with anything other than -/// 64 bytes, then it will panic! This function takes two arguments: -/// -/// * `state` is reference to an **array** of 5 words. -/// * `block` is reference to a **slice** of 64 bytes. -/// -/// If you want the function that performs a message digest on an arbitrary -/// number of bytes, then see also the `Sha1` struct above. -/// -/// # Implementation -/// -/// First, some background. Both ARM and Intel are releasing documentation -/// that they plan to include instruction set extensions for SHA1 and SHA256 -/// sometime in the near future. Second, LLVM won't lower these intrinsics yet, -/// so these functions were written emulate these instructions. Finally, -/// the block function implemented with these emulated intrinsics turned out -/// to be quite fast! What follows is a discussion of this CPU-level view -/// of the SHA-1 algorithm and how it relates to the mathematical definition. -/// -/// The SHA instruction set extensions can be divided up into two categories: -/// -/// * message work schedule update calculation ("schedule" v., "work" n.) -/// * message block 80-round digest calculation ("digest" v., "block" n.) -/// -/// The schedule-related functions can be used to easily perform 4 rounds -/// of the message work schedule update calculation, as shown below: -/// -/// ```ignore -/// macro_rules! schedule_x4 { -/// ($v0:expr, $v1:expr, $v2:expr, $v3:expr) => ( -/// sha1msg2(sha1msg1($v0, $v1) ^ $v2, $v3) -/// ) -/// } -/// -/// macro_rules! round_x4 { -/// ($h0:ident, $h1:ident, $wk:expr, $i:expr) => ( -/// sha1rnds4($h0, sha1_first_half($h1, $wk), $i) -/// ) -/// } -/// ``` -/// -/// and also shown above is how the digest-related functions can be used to -/// perform 4 rounds of the message block digest calculation. -/// -pub fn compress(state: &mut [u32; 5], block: &Block) { - let mut block_u32 = [0u32; BLOCK_LEN]; - BE::read_u32_into(block, &mut block_u32[..]); - sha1_digest_block_u32(state, &block_u32); -} |