') + ')', 'gi'); if (regex.test(text)) { found = true; var frag = document.createDocumentFragment(); var parts = text.split(regex); parts.forEach(function(part, i) { if (i % 2 === 0) { frag.appendChild(document.createTextNode(part)); } else { var span = document.createElement('span'); span.className = 'userscript-highlight'; span.textContent = part; frag.appendChild(span); } }); node.parentNode.replaceChild(frag, node); } }); } else if (node.nodeType === 1 && node.childNodes) { // element var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT']; if (!skipTags.includes(node.tagName)) { Array.from(node.childNodes).forEach(highlight); } } } highlight(document.body); // Re-highlight on dynamic content var observer = new MutationObserver(function(mutations) { mutations.forEach(function(m) { m.addedNodes.forEach(function(node) { if (node.nodeType === 1 || node.nodeType === 3) highlight(node); }); }); }); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ', 'i'); if (__m === '*' || __re.test(location.href)) { // Strip utm_, fbclid, gclid, etc. from all links on page (function() { var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content', 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid', 'ref', 'ref_src', 'source', 'medium', 'campaign']; function cleanUrl(url) { try { var u = new URL(url, window.location.origin); var changed = false; trackingParams.forEach(function(p) { if (u.searchParams.has(p)) { u.searchParams.delete(p); changed = true; } }); return changed ? u.toString() : url; } catch (e) { return url; } } function cleanLinks() { document.querySelectorAll('a[href]').forEach(function(a) { var clean = cleanUrl(a.href); if (clean !== a.href) a.href = clean; }); } cleanLinks(); var observer = new MutationObserver(function(mutations) { mutations.forEach(function(m) { m.addedNodes.forEach(function(node) { if (node.nodeType === 1) { if (node.tagName === 'A') cleanLinks(); node.querySelectorAll('a[href]').forEach(function(a) { var clean = cleanUrl(a.href); if (clean !== a.href) a.href = clean; }); } }); }); }); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + ', 'i'); if (__m === '*' || __re.test(location.href)) { // Auto-enable theater mode on YouTube (function() { function tryTheater() { var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]'); if (btn && !btn.classList.contains('activated')) { btn.click(); } } // Try immediately tryTheater(); // Try after navigation (SPA) var lastUrl = location.href; setInterval(function() { if (location.href !== lastUrl) { lastUrl = location.href; setTimeout(tryTheater, 500); } }, 1000); // Also try on player load var observer = new MutationObserver(tryTheater); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ', 'i'); if (__m === '*' || __re.test(location.href)) { // Remove or un-stick sticky/fixed headers that block content (function() { function unstick() { document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) { if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') { el.style.position = 'static'; el.style.top = 'auto'; el.style.zIndex = 'auto'; } }); } unstick(); var observer = new MutationObserver(unstick); observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] }); })(); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); })(); `check_public` improvements by tarcieri · Pull Request #170 · RustCrypto/RSA · GitHub
Skip to content

check_public improvements#170

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
tarcieri merged 1 commit into from
Aug 7, 2022
Merged

check_public improvements #170

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 2 additions & 0 deletions src/errors.rs
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -15,6 +15,7 @@ pub enum Error {
InvalidModulus,
InvalidExponent,
InvalidCoefficient,
ModulusTooLarge,
PublicExponentTooSmall,
PublicExponentTooLarge,
Pkcs1(pkcs1::Error),
Expand All@@ -41,6 +42,7 @@ impl core::fmt::Display for Error {
Error::InvalidModulus => write!(f, "invalid modulus"),
Error::InvalidExponent => write!(f, "invalid exponent"),
Error::InvalidCoefficient => write!(f, "invalid coefficient"),
Error::ModulusTooLarge => write!(f, "modulus too large"),
Error::PublicExponentTooSmall => write!(f, "public exponent too small"),
Error::PublicExponentTooLarge => write!(f, "public exponent too large"),
Error::Pkcs1(err) => write!(f, "{}", err),
Expand Down
15 changes: 10 additions & 5 deletions src/key.rs
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -16,8 +16,9 @@ use crate::padding::PaddingScheme;
use crate::raw::{DecryptionPrimitive, EncryptionPrimitive};
use crate::{oaep, pkcs1v15, pss};

static MIN_PUB_EXPONENT: u64 = 2;
static MAX_PUB_EXPONENT: u64 = 1 << (31 - 1);
const MIN_PUB_EXPONENT: u64 = 2;
const MAX_PUB_EXPONENT: u64 = (1 << 33) - 1;
const MAX_MODULUS_BITS: usize = 16384;

pub trait PublicKeyParts {
/// Returns the modulus of the key.
Expand DownExpand Up@@ -548,16 +549,20 @@ impl RsaPrivateKey {
/// Check that the public key is well formed and has an exponent within acceptable bounds.
#[inline]
pub fn check_public(public_key: &impl PublicKeyParts) -> Result<()> {
let public_key = public_key
if public_key.n().bits() > MAX_MODULUS_BITS {
return Err(Error::ModulusTooLarge);
}

let e = public_key
.e()
.to_u64()
.ok_or(Error::PublicExponentTooLarge)?;

if public_key < MIN_PUB_EXPONENT {
if e < MIN_PUB_EXPONENT {
return Err(Error::PublicExponentTooSmall);
}

if public_key > MAX_PUB_EXPONENT {
if e > MAX_PUB_EXPONENT {
return Err(Error::PublicExponentTooLarge);
}

Expand Down