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更新libclamav库1.0.0版本

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2023-01-14 18:28:39 +08:00
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clamav/libclamav_rust/.cargo/vendor/primal-check/.cargo-checksum.json vendored Normal file
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{"files":{"Cargo.toml":"c0a0ae121190d17789db77a479a48ec033ba7c185b9f1b54fe47101a6470760e","LICENSE-APACHE":"a60eea817514531668d7e00765731449fe14d059d3249e0bc93b36de45f759f2","LICENSE-MIT":"6d3a9431e65e69c73a8923e6517b889d17549b23db406b9ec027710d16af701f","src/is_prime.rs":"fb7e6bcb2908b9b0d431015e61c13ec1208aedd8bf022964f5911a2008b85be9","src/lib.rs":"9f8d77f275abce70218c68fcf641116d5a863905cdbdedf63bff6b2636371679","src/perfect_power.rs":"a72c630a9ed37f84645f1d3c426197ca71ed891acf21111446a8ef5e359dd5bd"},"package":"9df7f93fd637f083201473dab4fee2db4c429d32e55e3299980ab3957ab916a0"}

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clamav/libclamav_rust/.cargo/vendor/primal-check/Cargo.toml vendored Normal file
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# 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 are reading this file be aware that the original Cargo.toml
# will likely look very different (and much more reasonable).
# See Cargo.toml.orig for the original contents.
[package]
edition = "2018"
name = "primal-check"
version = "0.3.3"
authors = ["Huon Wilson <dbau.pp@gmail.com>"]
description = """
Fast standalone primality testing.
"""
homepage = "https://github.com/huonw/primal"
documentation = "http://docs.rs/primal-check/"
keywords = [
"math",
"mathematics",
"primes",
"number-theory",
]
license = "MIT OR Apache-2.0"
repository = "https://github.com/huonw/primal"
[dependencies.num-integer]
version = "0.1"
[dev-dependencies.primal]
version = "0.3"
[features]
unstable = []

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clamav/libclamav_rust/.cargo/vendor/primal-check/LICENSE-APACHE vendored Normal file
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clamav/libclamav_rust/.cargo/vendor/primal-check/LICENSE-MIT vendored Normal file
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Copyright (c) 2014 Huon Wilson
Permission is hereby granted, free of charge, to any
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DEALINGS IN THE SOFTWARE.

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clamav/libclamav_rust/.cargo/vendor/primal-check/src/is_prime.rs vendored Normal file
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fn mod_mul_(a: u64, b: u64, m: u64) -> u64 {
(u128::from(a) * u128::from(b) % u128::from(m)) as u64
}
fn mod_mul(a: u64, b: u64, m: u64) -> u64 {
match a.checked_mul(b) {
Some(r) => if r >= m { r % m } else { r },
None => mod_mul_(a, b, m),
}
}
fn mod_sqr(a: u64, m: u64) -> u64 {
if a < (1 << 32) {
let r = a * a;
if r >= m {
r % m
} else {
r
}
} else {
mod_mul_(a, a, m)
}
}
fn mod_exp(mut x: u64, mut d: u64, n: u64) -> u64 {
let mut ret: u64 = 1;
while d != 0 {
if d % 2 == 1 {
ret = mod_mul(ret, x, n)
}
d /= 2;
x = mod_sqr(x, n);
}
ret
}
/// Test if `n` is prime, using the deterministic version of the
/// Miller-Rabin test.
///
/// Doing a lot of primality tests with numbers strictly below some
/// upper bound will be faster using the `is_prime` method of a
/// `Sieve` instance.
///
/// # Examples
///
/// ```rust
/// assert_eq!(primal::is_prime(1), false);
/// assert_eq!(primal::is_prime(2), true);
/// assert_eq!(primal::is_prime(3), true);
/// assert_eq!(primal::is_prime(4), false);
/// assert_eq!(primal::is_prime(5), true);
///
/// assert_eq!(primal::is_prime(22_801_763_487), false);
/// assert_eq!(primal::is_prime(22_801_763_489), true);
/// assert_eq!(primal::is_prime(22_801_763_491), false);
/// ```
pub fn miller_rabin(n: u64) -> bool {
const HINT: &[u64] = &[2];
// we have a strict upper bound, so we can just use the witness
// table of Pomerance, Selfridge & Wagstaff and Jeaschke to be as
// efficient as possible, without having to fall back to
// randomness. Additional limits from Feitsma and Galway complete
// the entire range of `u64`. See also:
// https://en.wikipedia.org/wiki/Miller%E2%80%93Rabin_primality_test#Testing_against_small_sets_of_bases
const WITNESSES: &[(u64, &[u64])] = &[
(2_046, HINT),
(1_373_652, &[2, 3]),
(9_080_190, &[31, 73]),
(25_326_000, &[2, 3, 5]),
(4_759_123_140, &[2, 7, 61]),
(1_112_004_669_632, &[2, 13, 23, 1662803]),
(2_152_302_898_746, &[2, 3, 5, 7, 11]),
(3_474_749_660_382, &[2, 3, 5, 7, 11, 13]),
(341_550_071_728_320, &[2, 3, 5, 7, 11, 13, 17]),
(3_825_123_056_546_413_050, &[2, 3, 5, 7, 11, 13, 17, 19, 23]),
(std::u64::MAX, &[2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37]),
];
if n % 2 == 0 { return n == 2 }
if n == 1 { return false }
let mut d = n - 1;
let mut s = 0;
while d % 2 == 0 { d /= 2; s += 1 }
let witnesses =
WITNESSES.iter().find(|&&(hi, _)| hi >= n)
.map(|&(_, wtnss)| wtnss).unwrap();
'next_witness: for &a in witnesses.iter() {
let mut power = mod_exp(a, d, n);
assert!(power < n);
if power == 1 || power == n - 1 { continue 'next_witness }
for _r in 0..s {
power = mod_sqr(power, n);
assert!(power < n);
if power == 1 { return false }
if power == n - 1 {
continue 'next_witness
}
}
return false
}
true
}
#[cfg(test)]
mod tests {
use primal::Sieve;
#[test]
fn mod_mul() {
assert_eq!(super::mod_mul(1 << 63, 1 << 32, 3), 2);
assert_eq!(super::mod_mul(1 << 31, 1 << 31, (1 << 32) - 7), 3221225479);
assert_eq!(super::mod_mul(1 << 32, 1 << 32, (1 << 32) - 7), 49);
assert_eq!(super::mod_mul(1 << 32, 1 << 32, (1 << 32) + 7), 49);
assert_eq!(super::mod_mul(1 << 63, 1 << 32, (1 << 32) + 7), 2_147_483_480);
assert_eq!(super::mod_mul(1 << 63, 1 << 32, (1 << 63) + 7), 9_223_372_006_790_004_743);
assert_eq!(super::mod_mul(1 << 32, 1 << 32, !0), 1);
}
#[test]
fn miller_rabin() {
const LIMIT: usize = 1_000_000;
let sieve = Sieve::new(LIMIT);
for x in 0..LIMIT {
let s = sieve.is_prime(x);
let mr = super::miller_rabin(x as u64);
assert!(s == mr, "miller_rabin {} mismatches sieve {} for {}",
mr, s, x)
}
}
#[test]
fn miller_rabin_large() {
let tests = &[
(4_294_967_311, true),
(4_294_967_291, true),
(4_294_967_291 * 4_294_967_291, false),
(!0, false),
];
for &(n, is_prime) in tests {
assert!(super::miller_rabin(n) == is_prime,
"mismatch for {} (should be {})", n, is_prime);
}
}
#[test]
fn oeis_a014233() {
// https://oeis.org/A014233
const A014233: [u64; 9] = [
2047,
1373653,
25326001,
3215031751,
2152302898747,
3474749660383,
341550071728321,
341550071728321,
3825123056546413051,
// 3825123056546413051,
// 3825123056546413051,
// 318665857834031151167461,
// 3317044064679887385961981,
];
for &n in &A014233 {
assert!(!super::miller_rabin(n), "{} is composite!", n);
}
}
}

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//! Check some primality-related properties of numbers.
//!
//! This crate is designed to be used via `primal`.
pub use crate::is_prime::miller_rabin;
pub use crate::perfect_power::{as_perfect_power, as_prime_power};
mod perfect_power;
mod is_prime;

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use num_integer::Integer;
fn wrapping_pow(mut base: u64, mut exp: u32) -> u64 {
let mut acc: u64 = 1;
while exp > 0 {
if exp % 2 == 1 {
acc = acc.wrapping_mul(base)
}
base = base.wrapping_mul(base);
exp /= 2;
}
acc
}
/// Returns integers `(y, k)` such that `x = y^k` with `k` maximised
/// (other than for `x = 0, 1`, in which case `y = x`, `k = 1`).
///
/// # Examples
///
/// ```rust
/// # use primal_check as primal;
/// assert_eq!(primal::as_perfect_power(2), (2, 1));
/// assert_eq!(primal::as_perfect_power(4), (2, 2));
/// assert_eq!(primal::as_perfect_power(8), (2, 3));
/// assert_eq!(primal::as_perfect_power(1024), (2, 10));
///
/// assert_eq!(primal::as_perfect_power(1000), (10, 3));
///
/// assert_eq!(primal::as_perfect_power(15), (15, 1));
/// ```
pub fn as_perfect_power(x: u64) -> (u64, u8) {
if x == 0 || x == 1 {
return (x, 1)
}
let floor_log_2 = 64 - x.leading_zeros() as u32 - 1;
let x_ = x as f64;
let mut last = (x, 1);
// TODO: we could be smarter about this: we know all the possible
// primes that can divide the exponent (since we have a list up to
// 251 >= 64), so we really only need to check them.
let mut expn: u32 = 2;
let mut step = 1;
while expn <= floor_log_2 {
let factor = x_.powf(1.0/expn as f64).round() as u64;
// the only case this will wrap is if x is close to 2^64 and
// the round() rounds up, pushing this calculation over the
// edge, however, the overflow will be well away from x, so we
// still correctly don't take this branch. (x can't be a
// perfect power if the result rounds away.)
if wrapping_pow(factor, expn) == x {
last = (factor, expn as u8);
// if x is a 2nd and 5th power, it's going to be a 10th
// power too, meaning we can search faster.
// TODO: check if this is actually saving work
step = step.lcm(&expn);
}
expn += step;
}
last
}
/// Return `Some((p, k))` if `x = p^k` for some prime `p` and `k >= 1`
/// (that is, including when `x` is itself a prime).
///
/// Returns `None` if `x` not a perfect power.
///
/// # Examples
///
/// ```rust
/// # use primal_check as primal;
/// assert_eq!(primal::as_prime_power(2), Some((2, 1)));
/// assert_eq!(primal::as_prime_power(4), Some((2, 2)));
/// assert_eq!(primal::as_prime_power(8), Some((2, 3)));
/// assert_eq!(primal::as_prime_power(1024), Some((2, 10)));
///
/// assert_eq!(primal::as_prime_power(1000), None);
///
/// assert_eq!(primal::as_prime_power(15), None);
/// ```
pub fn as_prime_power(x: u64) -> Option<(u64, u8)> {
let (y, k) = as_perfect_power(x);
if crate::miller_rabin(y) {
Some((y, k))
} else {
None
}
}
#[cfg(test)]
mod tests {
use primal::Sieve;
use super::{as_perfect_power, as_prime_power};
#[test]
fn perfect_and_prime_power() {
let tests = [
(0, (0, 1), false),
(1, (1, 1), false),
(2, (2, 1), true),
(3, (3, 1), true),
(4, (2, 2), true),
(5, (5, 1), true),
(6, (6, 1), false),
(8, (2, 3), true),
(9, (3, 2), true),
(16, (2, 4), true),
(25, (5, 2), true),
(32, (2, 5), true),
(36, (6, 2), false),
(100, (10, 2), false),
(1000, (10, 3), false),
];
for &(x, expected, is_prime) in tests.iter() {
assert_eq!(as_perfect_power(x), expected);
assert_eq!(as_prime_power(x),
if is_prime { Some(expected)} else { None })
}
let sieve = Sieve::new(200);
let mut primes = sieve.primes_from(0);
const MAX: f64 = 0xFFFF_FFFF_FFFF_FFFFu64 as f64;
// test a whole pile of (semi)primes
loop {
let p = match primes.next() {
Some(p) => p as u64,
None => break
};
let subprimes = primes.clone().map(|x| (x, false));
// include 1 to test p itself.
for (q, is_prime) in Some((1, true)).into_iter().chain(subprimes) {
let pq = p * q as u64;
for n in 1..(MAX.log(pq as f64) as u32) {
let x = pq.pow(n);
let expected = (pq, n as u8);
assert_eq!(as_perfect_power(x), expected);
assert_eq!(as_prime_power(x),
if is_prime { Some(expected) } else { None });
}
}
}
}
}