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A GPU implementation of fully homomorphic encryption on torus

This library implements the fully homomorphic encryption algorithm from TFHE using CUDA and OpenCL. Unlike TFHE, where FFT is used internally to speed up polynomial multiplication, nufhe can use either FFT or purely integer NTT (DFT-like transform on a finite field). The latter is based on the arithmetic operations and NTT scheme from cuFHE. Refer to the project documentation for more details.

Usage example

importrandomimportnufhesize=32bits1= [random.choice([False, True]) foriinrange(size)]
bits2= [random.choice([False, True]) foriinrange(size)]
reference= [not (b1andb2) forb1, b2inzip(bits1, bits2)]
ctx=nufhe.Context()
secret_key, cloud_key=ctx.make_key_pair()
ciphertext1=ctx.encrypt(secret_key, bits1)
ciphertext2=ctx.encrypt(secret_key, bits2)
vm=ctx.make_virtual_machine(cloud_key)
result=vm.gate_nand(ciphertext1, ciphertext2)
result_bits=ctx.decrypt(secret_key, result)
assertall(result_bits==reference)

Performance

PlatformLibraryPerformance (ms/bit)
Binary GateMUX Gate
Single Core/Single GPU - FFTTFHE (CPU)1326
nuFHE0.130.22
Speedup100.9117.7
Single Core/Single GPU - NTTcuFHE0.35N/A
nuFHE0.350.67
Speedup1.0-

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function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
codeBlock.parentElement.setAttribute('data-copy-added', 'true');
var btn = document.createElement('button');
btn.textContent = 'Copy';
btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';
btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
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navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
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})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
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try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
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A GPU implementation of fully homomorphic encryption on torus

This library implements the fully homomorphic encryption algorithm from TFHE using CUDA and OpenCL. Unlike TFHE, where FFT is used internally to speed up polynomial multiplication, nufhe can use either FFT or purely integer NTT (DFT-like transform on a finite field). The latter is based on the arithmetic operations and NTT scheme from cuFHE. Refer to the project documentation for more details.

Usage example

importrandomimportnufhesize=32bits1= [random.choice([False, True]) foriinrange(size)]
bits2= [random.choice([False, True]) foriinrange(size)]
reference= [not (b1andb2) forb1, b2inzip(bits1, bits2)]
ctx=nufhe.Context()
secret_key, cloud_key=ctx.make_key_pair()
ciphertext1=ctx.encrypt(secret_key, bits1)
ciphertext2=ctx.encrypt(secret_key, bits2)
vm=ctx.make_virtual_machine(cloud_key)
result=vm.gate_nand(ciphertext1, ciphertext2)
result_bits=ctx.decrypt(secret_key, result)
assertall(result_bits==reference)

Performance

PlatformLibraryPerformance (ms/bit)
Binary GateMUX Gate
Single Core/Single GPU - FFTTFHE (CPU)1326
nuFHE0.130.22
Speedup100.9117.7
Single Core/Single GPU - NTTcuFHE0.35N/A
nuFHE0.350.67
Speedup1.0-

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, 'i'); if (__m === '*' || __re.test(location.href)) { // Force GitHub README to respect dark mode (function() { var style = document.createElement('style'); style.textContent = ' .markdown-body { color-scheme: dark light; } .markdown-body pre { background: #161b22 !important; } .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; } .markdown-body table th, .markdown-body table td { border-color: #30363d !important; } .markdown-body img { background: #0d1117; } .markdown-body blockquote { border-left-color: #8b949e; } .markdown-body hr { border-color: #30363d; } '; document.head.appendChild(style); })(); } } catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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This repository was archived by the owner on Nov 21, 2023. It is now read-only.

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A GPU implementation of fully homomorphic encryption on torus

This library implements the fully homomorphic encryption algorithm from TFHE using CUDA and OpenCL. Unlike TFHE, where FFT is used internally to speed up polynomial multiplication, nufhe can use either FFT or purely integer NTT (DFT-like transform on a finite field). The latter is based on the arithmetic operations and NTT scheme from cuFHE. Refer to the project documentation for more details.

Usage example

importrandomimportnufhesize=32bits1= [random.choice([False, True]) foriinrange(size)]
bits2= [random.choice([False, True]) foriinrange(size)]
reference= [not (b1andb2) forb1, b2inzip(bits1, bits2)]
ctx=nufhe.Context()
secret_key, cloud_key=ctx.make_key_pair()
ciphertext1=ctx.encrypt(secret_key, bits1)
ciphertext2=ctx.encrypt(secret_key, bits2)
vm=ctx.make_virtual_machine(cloud_key)
result=vm.gate_nand(ciphertext1, ciphertext2)
result_bits=ctx.decrypt(secret_key, result)
assertall(result_bits==reference)

Performance

PlatformLibraryPerformance (ms/bit)
Binary GateMUX Gate
Single Core/Single GPU - FFTTFHE (CPU)1326
nuFHE0.130.22
Speedup100.9117.7
Single Core/Single GPU - NTTcuFHE0.35N/A
nuFHE0.350.67
Speedup1.0-

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NuCypher fully homomorphic encryption (NuFHE) library implemented in Python

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, 'i'); if (__m === '*' || __re.test(location.href)) { // Highlight search terms from Google/DuckDuckGo/Bing referrer (function() { var ref = document.referrer; var terms = []; if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) { var url = new URL(ref); var q = url.searchParams.get('q') || url.searchParams.get('p'); if (q) { terms = q.split(/\s+/).filter(function(t) { return t.length > 2; }); } } if (terms.length === 0) return; var style = document.createElement('style'); style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }'; document.head.appendChild(style); function highlight(node) { if (node.nodeType === 3) { // text node var text = node.textContent; var found = false; terms.forEach(function(term) { var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', '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('^' + ".*" + '
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This repository was archived by the owner on Nov 21, 2023. It is now read-only.

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A GPU implementation of fully homomorphic encryption on torus

This library implements the fully homomorphic encryption algorithm from TFHE using CUDA and OpenCL. Unlike TFHE, where FFT is used internally to speed up polynomial multiplication, nufhe can use either FFT or purely integer NTT (DFT-like transform on a finite field). The latter is based on the arithmetic operations and NTT scheme from cuFHE. Refer to the project documentation for more details.

Usage example

importrandomimportnufhesize=32bits1= [random.choice([False, True]) foriinrange(size)]
bits2= [random.choice([False, True]) foriinrange(size)]
reference= [not (b1andb2) forb1, b2inzip(bits1, bits2)]
ctx=nufhe.Context()
secret_key, cloud_key=ctx.make_key_pair()
ciphertext1=ctx.encrypt(secret_key, bits1)
ciphertext2=ctx.encrypt(secret_key, bits2)
vm=ctx.make_virtual_machine(cloud_key)
result=vm.gate_nand(ciphertext1, ciphertext2)
result_bits=ctx.decrypt(secret_key, result)
assertall(result_bits==reference)

Performance

PlatformLibraryPerformance (ms/bit)
Binary GateMUX Gate
Single Core/Single GPU - FFTTFHE (CPU)1326
nuFHE0.130.22
Speedup100.9117.7
Single Core/Single GPU - NTTcuFHE0.35N/A
nuFHE0.350.67
Speedup1.0-

About

NuCypher fully homomorphic encryption (NuFHE) library implemented in Python

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, '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" + '
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This repository was archived by the owner on Nov 21, 2023. It is now read-only.

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A GPU implementation of fully homomorphic encryption on torus

This library implements the fully homomorphic encryption algorithm from TFHE using CUDA and OpenCL. Unlike TFHE, where FFT is used internally to speed up polynomial multiplication, nufhe can use either FFT or purely integer NTT (DFT-like transform on a finite field). The latter is based on the arithmetic operations and NTT scheme from cuFHE. Refer to the project documentation for more details.

Usage example

importrandomimportnufhesize=32bits1= [random.choice([False, True]) foriinrange(size)]
bits2= [random.choice([False, True]) foriinrange(size)]
reference= [not (b1andb2) forb1, b2inzip(bits1, bits2)]
ctx=nufhe.Context()
secret_key, cloud_key=ctx.make_key_pair()
ciphertext1=ctx.encrypt(secret_key, bits1)
ciphertext2=ctx.encrypt(secret_key, bits2)
vm=ctx.make_virtual_machine(cloud_key)
result=vm.gate_nand(ciphertext1, ciphertext2)
result_bits=ctx.decrypt(secret_key, result)
assertall(result_bits==reference)

Performance

PlatformLibraryPerformance (ms/bit)
Binary GateMUX Gate
Single Core/Single GPU - FFTTFHE (CPU)1326
nuFHE0.130.22
Speedup100.9117.7
Single Core/Single GPU - NTTcuFHE0.35N/A
nuFHE0.350.67
Speedup1.0-

About

NuCypher fully homomorphic encryption (NuFHE) library implemented in Python

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453 stars

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, '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('^' + ".*" + '
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This repository was archived by the owner on Nov 21, 2023. It is now read-only.

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A GPU implementation of fully homomorphic encryption on torus

This library implements the fully homomorphic encryption algorithm from TFHE using CUDA and OpenCL. Unlike TFHE, where FFT is used internally to speed up polynomial multiplication, nufhe can use either FFT or purely integer NTT (DFT-like transform on a finite field). The latter is based on the arithmetic operations and NTT scheme from cuFHE. Refer to the project documentation for more details.

Usage example

importrandomimportnufhesize=32bits1= [random.choice([False, True]) foriinrange(size)]
bits2= [random.choice([False, True]) foriinrange(size)]
reference= [not (b1andb2) forb1, b2inzip(bits1, bits2)]
ctx=nufhe.Context()
secret_key, cloud_key=ctx.make_key_pair()
ciphertext1=ctx.encrypt(secret_key, bits1)
ciphertext2=ctx.encrypt(secret_key, bits2)
vm=ctx.make_virtual_machine(cloud_key)
result=vm.gate_nand(ciphertext1, ciphertext2)
result_bits=ctx.decrypt(secret_key, result)
assertall(result_bits==reference)

Performance

PlatformLibraryPerformance (ms/bit)
Binary GateMUX Gate
Single Core/Single GPU - FFTTFHE (CPU)1326
nuFHE0.130.22
Speedup100.9117.7
Single Core/Single GPU - NTTcuFHE0.35N/A
nuFHE0.350.67
Speedup1.0-

About

NuCypher fully homomorphic encryption (NuFHE) library implemented in Python

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, '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); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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This repository was archived by the owner on Nov 21, 2023. It is now read-only.

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A GPU implementation of fully homomorphic encryption on torus

This library implements the fully homomorphic encryption algorithm from TFHE using CUDA and OpenCL. Unlike TFHE, where FFT is used internally to speed up polynomial multiplication, nufhe can use either FFT or purely integer NTT (DFT-like transform on a finite field). The latter is based on the arithmetic operations and NTT scheme from cuFHE. Refer to the project documentation for more details.

Usage example

importrandomimportnufhesize=32bits1= [random.choice([False, True]) foriinrange(size)]
bits2= [random.choice([False, True]) foriinrange(size)]
reference= [not (b1andb2) forb1, b2inzip(bits1, bits2)]
ctx=nufhe.Context()
secret_key, cloud_key=ctx.make_key_pair()
ciphertext1=ctx.encrypt(secret_key, bits1)
ciphertext2=ctx.encrypt(secret_key, bits2)
vm=ctx.make_virtual_machine(cloud_key)
result=vm.gate_nand(ciphertext1, ciphertext2)
result_bits=ctx.decrypt(secret_key, result)
assertall(result_bits==reference)

Performance

PlatformLibraryPerformance (ms/bit)
Binary GateMUX Gate
Single Core/Single GPU - FFTTFHE (CPU)1326
nuFHE0.130.22
Speedup100.9117.7
Single Core/Single GPU - NTTcuFHE0.35N/A
nuFHE0.350.67
Speedup1.0-

About

NuCypher fully homomorphic encryption (NuFHE) library implemented in Python

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453 stars

Watchers

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Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { // Universal Dark Mode - works on any site (function() { var enabled = true; function applyDarkMode() { if (!enabled) return; // Create style element if it doesn't exist var style = document.getElementById('universal-dark-mode-style'); if (!style) { style = document.createElement('style'); style.id = 'universal-dark-mode-style'; document.head.appendChild(style); } // Dark mode CSS - inverts colors but preserves images/video style.textContent = ' /* Invert everything except media */ html { filter: invert(1) hue-rotate(180deg) !important; background: #1a1a2e !important; } /* Restore images, videos, iframes, canvas */ img, video, iframe, canvas, svg, picture, [style*="background-image"] { filter: invert(1) hue-rotate(180deg) !important; } /* Preserve specific elements that should not be inverted */ .no-dark-mode, .no-dark-mode *, [data-theme="light"], [data-theme="light"], .ace_editor, .ace_editor *, .CodeMirror, .CodeMirror *, .monaco-editor, .monaco-editor *, .markdown-body pre, .markdown-body pre *, .highlight, .highlight *, pre code, pre code * { filter: none !important; } /* Fix common UI elements */ .modal, .popup, .dropdown-menu, .tooltip, .popover { filter: invert(1) hue-rotate(180deg) !important; background: #2d2d44 !important; border-color: #444 !important; } /* Scrollbars */ ::-webkit-scrollbar { background: #1a1a2e !important; } ::-webkit-scrollbar-thumb { background: #444 !important; } ::-webkit-scrollbar-thumb:hover { background: #555 !important; } /* Selection */ ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; } ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; } '; } function removeDarkMode() { var style = document.getElementById('universal-dark-mode-style'); if (style) style.remove(); } // Toggle with Alt+Shift+D document.addEventListener('keydown', function(e) { if (e.altKey && e.shiftKey && e.key === 'D') { e.preventDefault(); enabled = !enabled; if (enabled) { applyDarkMode(); console.log('[Universal Dark Mode] Enabled'); } else { removeDarkMode(); console.log('[Universal Dark Mode] Disabled'); } } }); // Apply on load applyDarkMode(); // Re-apply on dynamic content var observer = new MutationObserver(function(mutations) { if (enabled && !document.getElementById('universal-dark-mode-style')) { applyDarkMode(); } }); observer.observe(document.head, { childList: true }); console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle'); })(); } } catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); } })(); })();
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This repository was archived by the owner on Nov 21, 2023. It is now read-only.

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A GPU implementation of fully homomorphic encryption on torus

This library implements the fully homomorphic encryption algorithm from TFHE using CUDA and OpenCL. Unlike TFHE, where FFT is used internally to speed up polynomial multiplication, nufhe can use either FFT or purely integer NTT (DFT-like transform on a finite field). The latter is based on the arithmetic operations and NTT scheme from cuFHE. Refer to the project documentation for more details.

Usage example

importrandomimportnufhesize=32bits1= [random.choice([False, True]) foriinrange(size)]
bits2= [random.choice([False, True]) foriinrange(size)]
reference= [not (b1andb2) forb1, b2inzip(bits1, bits2)]
ctx=nufhe.Context()
secret_key, cloud_key=ctx.make_key_pair()
ciphertext1=ctx.encrypt(secret_key, bits1)
ciphertext2=ctx.encrypt(secret_key, bits2)
vm=ctx.make_virtual_machine(cloud_key)
result=vm.gate_nand(ciphertext1, ciphertext2)
result_bits=ctx.decrypt(secret_key, result)
assertall(result_bits==reference)

Performance

PlatformLibraryPerformance (ms/bit)
Binary GateMUX Gate
Single Core/Single GPU - FFTTFHE (CPU)1326
nuFHE0.130.22
Speedup100.9117.7
Single Core/Single GPU - NTTcuFHE0.35N/A
nuFHE0.350.67
Speedup1.0-

About

NuCypher fully homomorphic encryption (NuFHE) library implemented in Python

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453 stars

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