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CryptoEngine package

This simplifies even further the usage of the NaCl crypto primitives, by taking care of the nonce part. It uses a KDF, specifically HKDF to compute the nonces.

Big Picture

The encryption and decryption phases are the following:


Message -> Encrypt -> EncryptedMessage -> ToBytes() -> < = NETWORK = > <- FromBytes() -> EncryptedMessage -> Decrypt -> Message

Usage

1- Import the library

import github.com/sec51/cryptoengine

2- Instanciate the CryptoEngine object via:

	engine, err := cryptoengine.InitCryptoEngine("Sec51")
if err != nil {
return err
}

See the godoc for more info about the InitCryptoEngine parameter

3- Encrypt a message using symmetric encryption

 message := "the quick brown fox jumps over the lazy dog"
engine.NewMessage(message)
if err != nil {
return err
}

4- Serialize the message to a byte slice, so that it can be safely sent to the network

	messageBytes, err := tcp.ToBytes()
if err != nil {
t.Fatal(err)
} 

5- Parse the byte slice back to a message

	message, err := MessageFromBytes(messageBytes)
if err != nil {
t.Fatal(err)
}

License

Copyright (c) 2015 Sec51.com info@sec51.com

Permission to use, copy, modify, and distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

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, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all
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(function() {
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'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
});
}
addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
GitHub - sec51/cryptoengine: This Golang package simplifies even further the usage of NaCl crypto primitives · GitHub
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CryptoEngine package

This simplifies even further the usage of the NaCl crypto primitives, by taking care of the nonce part. It uses a KDF, specifically HKDF to compute the nonces.

Big Picture

The encryption and decryption phases are the following:


Message -> Encrypt -> EncryptedMessage -> ToBytes() -> < = NETWORK = > <- FromBytes() -> EncryptedMessage -> Decrypt -> Message

Usage

1- Import the library

import github.com/sec51/cryptoengine

2- Instanciate the CryptoEngine object via:

	engine, err := cryptoengine.InitCryptoEngine("Sec51")
if err != nil {
return err
}

See the godoc for more info about the InitCryptoEngine parameter

3- Encrypt a message using symmetric encryption

 message := "the quick brown fox jumps over the lazy dog"
engine.NewMessage(message)
if err != nil {
return err
}

4- Serialize the message to a byte slice, so that it can be safely sent to the network

	messageBytes, err := tcp.ToBytes()
if err != nil {
t.Fatal(err)
} 

5- Parse the byte slice back to a message

	message, err := MessageFromBytes(messageBytes)
if err != nil {
t.Fatal(err)
}

License

Copyright (c) 2015 Sec51.com info@sec51.com

Permission to use, copy, modify, and distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

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This Golang package simplifies even further the usage of NaCl crypto primitives

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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('^' + ".*" + ' GitHub - sec51/cryptoengine: This Golang package simplifies even further the usage of NaCl crypto primitives · GitHub
Skip to content

Repository files navigation

Build status

Build StatusGoDoc

CryptoEngine package

This simplifies even further the usage of the NaCl crypto primitives, by taking care of the nonce part. It uses a KDF, specifically HKDF to compute the nonces.

Big Picture

The encryption and decryption phases are the following:


Message -> Encrypt -> EncryptedMessage -> ToBytes() -> < = NETWORK = > <- FromBytes() -> EncryptedMessage -> Decrypt -> Message

Usage

1- Import the library

import github.com/sec51/cryptoengine

2- Instanciate the CryptoEngine object via:

	engine, err := cryptoengine.InitCryptoEngine("Sec51")
if err != nil {
return err
}

See the godoc for more info about the InitCryptoEngine parameter

3- Encrypt a message using symmetric encryption

 message := "the quick brown fox jumps over the lazy dog"
engine.NewMessage(message)
if err != nil {
return err
}

4- Serialize the message to a byte slice, so that it can be safely sent to the network

	messageBytes, err := tcp.ToBytes()
if err != nil {
t.Fatal(err)
} 

5- Parse the byte slice back to a message

	message, err := MessageFromBytes(messageBytes)
if err != nil {
t.Fatal(err)
}

License

Copyright (c) 2015 Sec51.com info@sec51.com

Permission to use, copy, modify, and distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

About

This Golang package simplifies even further the usage of NaCl crypto primitives

Resources

Stars

1 star

Watchers

1 watching

Forks

Releases

Packages

Contributors

Languages

, '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('^' + ".*" + ' GitHub - sec51/cryptoengine: This Golang package simplifies even further the usage of NaCl crypto primitives · GitHub
Skip to content

Repository files navigation

Build status

Build StatusGoDoc

CryptoEngine package

This simplifies even further the usage of the NaCl crypto primitives, by taking care of the nonce part. It uses a KDF, specifically HKDF to compute the nonces.

Big Picture

The encryption and decryption phases are the following:


Message -> Encrypt -> EncryptedMessage -> ToBytes() -> < = NETWORK = > <- FromBytes() -> EncryptedMessage -> Decrypt -> Message

Usage

1- Import the library

import github.com/sec51/cryptoengine

2- Instanciate the CryptoEngine object via:

	engine, err := cryptoengine.InitCryptoEngine("Sec51")
if err != nil {
return err
}

See the godoc for more info about the InitCryptoEngine parameter

3- Encrypt a message using symmetric encryption

 message := "the quick brown fox jumps over the lazy dog"
engine.NewMessage(message)
if err != nil {
return err
}

4- Serialize the message to a byte slice, so that it can be safely sent to the network

	messageBytes, err := tcp.ToBytes()
if err != nil {
t.Fatal(err)
} 

5- Parse the byte slice back to a message

	message, err := MessageFromBytes(messageBytes)
if err != nil {
t.Fatal(err)
}

License

Copyright (c) 2015 Sec51.com info@sec51.com

Permission to use, copy, modify, and distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

About

This Golang package simplifies even further the usage of NaCl crypto primitives

Resources

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1 star

Watchers

1 watching

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Contributors

Languages

, '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" + ' GitHub - sec51/cryptoengine: This Golang package simplifies even further the usage of NaCl crypto primitives · GitHub
Skip to content

Repository files navigation

Build status

Build StatusGoDoc

CryptoEngine package

This simplifies even further the usage of the NaCl crypto primitives, by taking care of the nonce part. It uses a KDF, specifically HKDF to compute the nonces.

Big Picture

The encryption and decryption phases are the following:


Message -> Encrypt -> EncryptedMessage -> ToBytes() -> < = NETWORK = > <- FromBytes() -> EncryptedMessage -> Decrypt -> Message

Usage

1- Import the library

import github.com/sec51/cryptoengine

2- Instanciate the CryptoEngine object via:

	engine, err := cryptoengine.InitCryptoEngine("Sec51")
if err != nil {
return err
}

See the godoc for more info about the InitCryptoEngine parameter

3- Encrypt a message using symmetric encryption

 message := "the quick brown fox jumps over the lazy dog"
engine.NewMessage(message)
if err != nil {
return err
}

4- Serialize the message to a byte slice, so that it can be safely sent to the network

	messageBytes, err := tcp.ToBytes()
if err != nil {
t.Fatal(err)
} 

5- Parse the byte slice back to a message

	message, err := MessageFromBytes(messageBytes)
if err != nil {
t.Fatal(err)
}

License

Copyright (c) 2015 Sec51.com info@sec51.com

Permission to use, copy, modify, and distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

About

This Golang package simplifies even further the usage of NaCl crypto primitives

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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('^' + ".*" + ' GitHub - sec51/cryptoengine: This Golang package simplifies even further the usage of NaCl crypto primitives · GitHub
Skip to content

Repository files navigation

Build status

Build StatusGoDoc

CryptoEngine package

This simplifies even further the usage of the NaCl crypto primitives, by taking care of the nonce part. It uses a KDF, specifically HKDF to compute the nonces.

Big Picture

The encryption and decryption phases are the following:


Message -> Encrypt -> EncryptedMessage -> ToBytes() -> < = NETWORK = > <- FromBytes() -> EncryptedMessage -> Decrypt -> Message

Usage

1- Import the library

import github.com/sec51/cryptoengine

2- Instanciate the CryptoEngine object via:

	engine, err := cryptoengine.InitCryptoEngine("Sec51")
if err != nil {
return err
}

See the godoc for more info about the InitCryptoEngine parameter

3- Encrypt a message using symmetric encryption

 message := "the quick brown fox jumps over the lazy dog"
engine.NewMessage(message)
if err != nil {
return err
}

4- Serialize the message to a byte slice, so that it can be safely sent to the network

	messageBytes, err := tcp.ToBytes()
if err != nil {
t.Fatal(err)
} 

5- Parse the byte slice back to a message

	message, err := MessageFromBytes(messageBytes)
if err != nil {
t.Fatal(err)
}

License

Copyright (c) 2015 Sec51.com info@sec51.com

Permission to use, copy, modify, and distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

About

This Golang package simplifies even further the usage of NaCl crypto primitives

Resources

Stars

1 star

Watchers

1 watching

Forks

Releases

Packages

Contributors

Languages

, '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); } })(); })(); GitHub - sec51/cryptoengine: This Golang package simplifies even further the usage of NaCl crypto primitives · GitHub
Skip to content

Repository files navigation

Build status

Build StatusGoDoc

CryptoEngine package

This simplifies even further the usage of the NaCl crypto primitives, by taking care of the nonce part. It uses a KDF, specifically HKDF to compute the nonces.

Big Picture

The encryption and decryption phases are the following:


Message -> Encrypt -> EncryptedMessage -> ToBytes() -> < = NETWORK = > <- FromBytes() -> EncryptedMessage -> Decrypt -> Message

Usage

1- Import the library

import github.com/sec51/cryptoengine

2- Instanciate the CryptoEngine object via:

	engine, err := cryptoengine.InitCryptoEngine("Sec51")
if err != nil {
return err
}

See the godoc for more info about the InitCryptoEngine parameter

3- Encrypt a message using symmetric encryption

 message := "the quick brown fox jumps over the lazy dog"
engine.NewMessage(message)
if err != nil {
return err
}

4- Serialize the message to a byte slice, so that it can be safely sent to the network

	messageBytes, err := tcp.ToBytes()
if err != nil {
t.Fatal(err)
} 

5- Parse the byte slice back to a message

	message, err := MessageFromBytes(messageBytes)
if err != nil {
t.Fatal(err)
}

License

Copyright (c) 2015 Sec51.com info@sec51.com

Permission to use, copy, modify, and distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

About

This Golang package simplifies even further the usage of NaCl crypto primitives

Resources

Stars

1 star

Watchers

1 watching

Forks

Releases

Packages

Contributors

Languages