Reverse engineering Bambu Connect - Revision history

Rudxain: wanted: JS

2026-02-23T18:32:53Z

wanted: JS

← Older revision		Revision as of 18:32, 23 February 2026
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	#Install the npm package <code>asarfix</code> and use it to fix the archive: <code>npx asarfix app.asar -k <KEY> -o fixed.asar</code>		#Install the npm package <code>asarfix</code> and use it to fix the archive: <code>npx asarfix app.asar -k <KEY> -o fixed.asar</code>
	#Now you can extract it in cleartext with <code>npx asar extract fixed.asar src</code>		#Now you can extract it in cleartext with <code>npx asar extract fixed.asar src</code>
	#<code>./src/.vite/build/main.js</code> is minified. Use any JavaScript beautifier (for example <code>prettier</code>) to make it better readable. Interesting user code (including the private key) is at the end of the file.		#<code>./src/.vite/build/main.js</code> is minified. Use any [[JavaScript]] beautifier (for example <code>prettier</code>) to make it better readable. Interesting user code (including the private key) is at the end of the file.

	===Extracting certs and private key===		===Extracting certs and private key===

Bananabot: Added archive URLs for 4 citation(s) using CRWCitationBot

2026-02-23T07:25:54Z

Added archive URLs for 4 citation(s) using CRWCitationBot

← Older revision		Revision as of 07:25, 23 February 2026
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	Bambu Connect is an [[Electron]] app with [[security through obscurity]], which makes it inherently insecure. The purpose of this guide is to demonstrate the trivial process of extracting the "private keys" used for communicating with [[Bambu Lab\|Bambu]] devices to examine, and challenge, the technical basis for Bambu Lab's security justification of Bambu Connect.		Bambu Connect is an [[Electron]] app with [[security through obscurity]], which makes it inherently insecure. The purpose of this guide is to demonstrate the trivial process of extracting the "private keys" used for communicating with [[Bambu Lab\|Bambu]] devices to examine, and challenge, the technical basis for Bambu Lab's security justification of Bambu Connect.

	'''Update (March 11, 2025)''': Bambu Connect v1.2.1-beta.5<ref>https://public-cdn.bblmw.com/upgrade/bambu-connect/updates/versions/1.2.1-beta.5/bambu-connect-v1.2.1-beta.5-win32-x64.exe - public-cdn.bblmw.com - accessed 2025-03-18</ref> obfuscated main.js with electron-vite's v8 bytecode plugin<ref>{{Cite web \|title=electron-vite Source Code Protection \|url=https://electron-vite.org/guide/source-code-protection#what-is-v8-bytecode \|access-date=2025-03-18}}</ref>. The key can likely be obtained by dumping the process memory.		'''Update (March 11, 2025)''': Bambu Connect v1.2.1-beta.5<ref>https://public-cdn.bblmw.com/upgrade/bambu-connect/updates/versions/1.2.1-beta.5/bambu-connect-v1.2.1-beta.5-win32-x64.exe - public-cdn.bblmw.com - accessed 2025-03-18 ([http://web.archive.org/web/20250708192738/https://public-cdn.bblmw.com/upgrade/bambu-connect/updates/versions/1.2.1-beta.5/bambu-connect-v1.2.1-beta.5-win32-x64.exe Archived])</ref> obfuscated main.js with electron-vite's v8 bytecode plugin<ref>{{Cite web \|title=electron-vite Source Code Protection \|url=https://electron-vite.org/guide/source-code-protection#what-is-v8-bytecode \|access-date=2025-03-18 \|archive-url=http://web.archive.org/web/20250708192736/https://electron-vite.org/guide/source-code-protection \|archive-date=8 Jul 2025}}</ref>. The key can likely be obtained by dumping the process memory.

	'''Update (January 26, 2025)''': Bambu Connect v1.1.3<ref>https://public-cdn.bblmw.com/upgrade/bambu-connect/v1.1.3/bambu-connect-beta-darwin-arm64-v1.1.3_2c73d82.dmg - public-cdn.bblmw.com - accessed 2025-01-29</ref> is no longer obfuscated and can be directly extracted: <code>npx asar extract app.asar src</code>.		'''Update (January 26, 2025)''': Bambu Connect v1.1.3<ref>https://public-cdn.bblmw.com/upgrade/bambu-connect/v1.1.3/bambu-connect-beta-darwin-arm64-v1.1.3_2c73d82.dmg - public-cdn.bblmw.com - accessed 2025-01-29 ([http://web.archive.org/web/20250708192737/https://public-cdn.bblmw.com/upgrade/bambu-connect/v1.1.3/bambu-connect-beta-darwin-arm64-v1.1.3_2c73d82.dmg Archived])</ref> is no longer obfuscated and can be directly extracted: <code>npx asar extract app.asar src</code>.

	To read <code>main.js</code> for further analysis or extracting the private key stored by Bambu in the app:		To read <code>main.js</code> for further analysis or extracting the private key stored by Bambu in the app:

	#Use the MacOS .dmg file, not the .exe (finding the needed decryption code is easier in the .dmg).		#Use the MacOS .dmg file, not the .exe (finding the needed decryption code is easier in the .dmg).
	#Extract <code>bambu-connect-beta-darwin-arm64-v1.0.4_4bb9cf0.dmg</code>''.''<ref>https://public-cdn.bblmw.com/upgrade/bambu-connect/bambu-connect-beta-darwin-arm64-v1.0.4_4bb9cf0.dmg - public-cdn.bblmw.com - accessed 2025-01-28</ref> In there you can find the files of the underlying Electron app in the <code>Bambu Connect (Beta).app/Contents/Resources</code> folder.		#Extract <code>bambu-connect-beta-darwin-arm64-v1.0.4_4bb9cf0.dmg</code>''.''<ref>https://public-cdn.bblmw.com/upgrade/bambu-connect/bambu-connect-beta-darwin-arm64-v1.0.4_4bb9cf0.dmg - public-cdn.bblmw.com - accessed 2025-01-28 ([http://web.archive.org/web/20250708192750/https://public-cdn.bblmw.com/upgrade/bambu-connect/bambu-connect-beta-darwin-arm64-v1.0.4_4bb9cf0.dmg Archived])</ref> In there you can find the files of the underlying Electron app in the <code>Bambu Connect (Beta).app/Contents/Resources</code> folder.
	#The app uses asarmor to prevent easy reading. The key is stored in the mach-o binary located here: <code>/Bambu Connect (Beta).app/Contents/Resources/app.asar.unpacked/.vite/build/main.node</code> and can be extracted. Unpacking <code>app.asar</code> without fixing it first will result in an encrypted <code>main.js</code> file and 100 GB of decoy files generated. Don't try it.		#The app uses asarmor to prevent easy reading. The key is stored in the mach-o binary located here: <code>/Bambu Connect (Beta).app/Contents/Resources/app.asar.unpacked/.vite/build/main.node</code> and can be extracted. Unpacking <code>app.asar</code> without fixing it first will result in an encrypted <code>main.js</code> file and 100 GB of decoy files generated. Don't try it.
	#Load <code>main.node</code> in Ghidra and Auto-Analyze it. Then search for the GetKey function, or press G and go to <code>0000b67e</code><ref>[https://archive.is/RnFTu "Bambu Firmware to impact use of OrchaSlicer"] - archive.is - archived 2025-01-21</ref>		#Load <code>main.node</code> in Ghidra and Auto-Analyze it. Then search for the GetKey function, or press G and go to <code>0000b67e</code><ref>[https://archive.is/RnFTu "Bambu Firmware to impact use of OrchaSlicer"] - archive.is - archived 2025-01-21</ref>

AnotherConsumerRightsPerson at 14:59, 30 August 2025

2025-08-30T14:59:56Z

← Older revision		Revision as of 14:59, 30 August 2025
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	<noinclude>		<noinclude>
	{{GuideNotice}}		{{GuideNotice}}
	Bambu Connect is an [[~~Help:Electron\|~~Electron]] app with [[security through obscurity]], which makes it inherently insecure. The purpose of this guide is to demonstrate the trivial process of extracting the "private keys" used for communicating with [[Bambu Lab\|Bambu]] devices to examine, and challenge, the technical basis for Bambu Lab's security justification of Bambu Connect.		Bambu Connect is an [[Electron]] app with [[security through obscurity]], which makes it inherently insecure. The purpose of this guide is to demonstrate the trivial process of extracting the "private keys" used for communicating with [[Bambu Lab\|Bambu]] devices to examine, and challenge, the technical basis for Bambu Lab's security justification of Bambu Connect.

	'''Update (March 11, 2025)''': Bambu Connect v1.2.1-beta.5<ref>https://public-cdn.bblmw.com/upgrade/bambu-connect/updates/versions/1.2.1-beta.5/bambu-connect-v1.2.1-beta.5-win32-x64.exe - public-cdn.bblmw.com - accessed 2025-03-18</ref> obfuscated main.js with electron-vite's v8 bytecode plugin<ref>{{Cite web \|title=electron-vite Source Code Protection \|url=https://electron-vite.org/guide/source-code-protection#what-is-v8-bytecode \|access-date=2025-03-18}}</ref>. The key can likely be obtained by dumping the process memory.		'''Update (March 11, 2025)''': Bambu Connect v1.2.1-beta.5<ref>https://public-cdn.bblmw.com/upgrade/bambu-connect/updates/versions/1.2.1-beta.5/bambu-connect-v1.2.1-beta.5-win32-x64.exe - public-cdn.bblmw.com - accessed 2025-03-18</ref> obfuscated main.js with electron-vite's v8 bytecode plugin<ref>{{Cite web \|title=electron-vite Source Code Protection \|url=https://electron-vite.org/guide/source-code-protection#what-is-v8-bytecode \|access-date=2025-03-18}}</ref>. The key can likely be obtained by dumping the process memory.

AnotherConsumerRightsPerson at 11:08, 30 August 2025

2025-08-30T11:08:12Z

← Older revision		Revision as of 11:08, 30 August 2025
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	<noinclude><div style="padding-left:1.6rem;margin-bottom:0.5rem;">''This is part of the [[Bambu Lab Authorization Control System]] article.''</div></noinclude>		<noinclude><div style="padding-left:1.6rem;margin-bottom:0.5rem;">''This is part of the [[Bambu Lab Authorization Control System]] article.''</div></noinclude>
	~~Bambu Connect is an [[Help:Electron\|Electron]] app with [[security through obscurity]], which makes it inherently insecure.~~<noinclude>		<noinclude>
	{{GuideNotice}}		{{GuideNotice}}
	The purpose of this guide is to demonstrate the trivial process of extracting the "private keys" used for communicating with [[Bambu Lab\|Bambu]] devices to examine, and challenge, the technical basis for Bambu Lab's security justification of Bambu Connect.		Bambu Connect is an [[Help:Electron\|Electron]] app with [[security through obscurity]], which makes it inherently insecure. The purpose of this guide is to demonstrate the trivial process of extracting the "private keys" used for communicating with [[Bambu Lab\|Bambu]] devices to examine, and challenge, the technical basis for Bambu Lab's security justification of Bambu Connect.

	'''Update (March 11, 2025)''': Bambu Connect v1.2.1-beta.5<ref>https://public-cdn.bblmw.com/upgrade/bambu-connect/updates/versions/1.2.1-beta.5/bambu-connect-v1.2.1-beta.5-win32-x64.exe - public-cdn.bblmw.com - accessed 2025-03-18</ref> obfuscated main.js with electron-vite's v8 bytecode plugin<ref>{{Cite web \|title=electron-vite Source Code Protection \|url=https://electron-vite.org/guide/source-code-protection#what-is-v8-bytecode \|access-date=2025-03-18}}</ref>. The key can likely be obtained by dumping the process memory.		'''Update (March 11, 2025)''': Bambu Connect v1.2.1-beta.5<ref>https://public-cdn.bblmw.com/upgrade/bambu-connect/updates/versions/1.2.1-beta.5/bambu-connect-v1.2.1-beta.5-win32-x64.exe - public-cdn.bblmw.com - accessed 2025-03-18</ref> obfuscated main.js with electron-vite's v8 bytecode plugin<ref>{{Cite web \|title=electron-vite Source Code Protection \|url=https://electron-vite.org/guide/source-code-protection#what-is-v8-bytecode \|access-date=2025-03-18}}</ref>. The key can likely be obtained by dumping the process memory.

Abc: New obfuscation in bambu-connect-v1.2.1-beta.5

2025-03-18T00:04:38Z

New obfuscation in bambu-connect-v1.2.1-beta.5

← Older revision		Revision as of 00:04, 18 March 2025
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	The purpose of this guide is to demonstrate the trivial process of extracting the "private keys" used for communicating with [[Bambu Lab\|Bambu]] devices to examine, and challenge, the technical basis for Bambu Lab's security justification of Bambu Connect.		The purpose of this guide is to demonstrate the trivial process of extracting the "private keys" used for communicating with [[Bambu Lab\|Bambu]] devices to examine, and challenge, the technical basis for Bambu Lab's security justification of Bambu Connect.

	'''Update (January 26, 2025)''': Bambu Connect v1.1.3<ref>https://public-cdn.bblmw.com/upgrade/bambu-connect/v1.1.3/bambu-connect-beta-darwin-arm64-v1.1.3_2c73d82.dmg - public-cdn.bblmw.com - accessed 2025-01-29</ref> is no longer obfuscated~~. You~~ can ~~skip all steps related to asarmor,~~ <code>~~asarfix~~</code>~~, Ghidra, and string deobfuscation~~.		'''Update (March 11, 2025)''': Bambu Connect v1.2.1-beta.5<ref>https://public-cdn.bblmw.com/upgrade/bambu-connect/updates/versions/1.2.1-beta.5/bambu-connect-v1.2.1-beta.5-win32-x64.exe - public-cdn.bblmw.com - accessed 2025-03-18</ref> obfuscated main.js with electron-vite's v8 bytecode plugin<ref>{{Cite web \|title=electron-vite Source Code Protection \|url=https://electron-vite.org/guide/source-code-protection#what-is-v8-bytecode \|access-date=2025-03-18}}</ref>. The key can likely be obtained by dumping the process memory.

			'''Update (January 26, 2025)''': Bambu Connect v1.1.3<ref>https://public-cdn.bblmw.com/upgrade/bambu-connect/v1.1.3/bambu-connect-beta-darwin-arm64-v1.1.3_2c73d82.dmg - public-cdn.bblmw.com - accessed 2025-01-29</ref> is no longer obfuscated and can be directly extracted: <code>npx asar extract app.asar src</code>.

	To read <code>main.js</code> for further analysis or extracting the private key stored by Bambu in the app:		To read <code>main.js</code> for further analysis or extracting the private key stored by Bambu in the app:

Abc: rephrase expiry

2025-02-13T17:08:35Z

rephrase expiry

← Older revision		Revision as of 17:08, 13 February 2025
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	What the key '''cannot''' be used for, contrary to many false claims on the internet:		What the key '''cannot''' be used for, contrary to many false claims on the internet:

	* Decrypting HTTPS traffic to the cloud		*Decrypting HTTPS traffic to the cloud
	* Decrypting any MQTTS or FTPS or video feed traffic		*Decrypting any MQTTS or FTPS or video feed traffic
	* Bypassing cloud user authentication		*Bypassing cloud user authentication
	* Bypassing local authentication (LAN access code)		*Bypassing local authentication (LAN access code)
	* Getting access to other printers		*Getting access to other printers
	* Signing custom firmware		*Signing custom firmware
	* Signing custom filament NFC tags		*Signing custom filament NFC tags
	* Jailbreaking		*Jailbreaking

	===Purpose of the certificates===		===Purpose of the certificates===
	The private key corresponds to the public key contained in the app's certificate. This certificate is sent to the printer, allowing it to verify the authenticity of the digital signature using the public key.		The private key corresponds to the public key contained in the app's certificate. This certificate is sent to the printer, allowing it to verify the authenticity of the digital signature using the public key.

	Bambu Connect continues to work after these certificates expire. Because of how these certificates are used, it is also unlikely that ~~it<sup>[''what?'']</sup>~~ causes the printer to get "bricked", but this needs to be proven through experiments or firmware analysis.		Bambu Connect continues to work after these certificates expire. Because of how these certificates are used, it is also unlikely that expiry causes the printer to get "bricked", but this needs to be proven through experiments or firmware analysis.

	===Additional security measures===		===Additional security measures===

Abc: examples for what key cannot be used for

2025-02-13T05:00:46Z

examples for what key cannot be used for

← Older revision		Revision as of 05:00, 13 February 2025
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	Since the private key has already been leaked, however, third-party software can now regain access to the lost functionality, and it is clear that the overall security characteristics have neither improved nor worsened compared to previous updates.		Since the private key has already been leaked, however, third-party software can now regain access to the lost functionality, and it is clear that the overall security characteristics have neither improved nor worsened compared to previous updates.

			What the key '''cannot''' be used for, contrary to many false claims on the internet:

			* Decrypting HTTPS traffic to the cloud
			* Decrypting any MQTTS or FTPS or video feed traffic
			* Bypassing cloud user authentication
			* Bypassing local authentication (LAN access code)
			* Getting access to other printers
			* Signing custom firmware
			* Signing custom filament NFC tags
			* Jailbreaking

	===Purpose of the certificates===		===Purpose of the certificates===

Waldo: Category:User guides

2025-01-31T10:14:47Z

Category:User guides

← Older revision		Revision as of 10:14, 31 January 2025
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	[[Category:Bambu Lab]]		[[Category:Bambu Lab]]
			[[Category:User guides]]
	</noinclude>		</noinclude>

Mingyee: Proofreading

2025-01-29T17:50:51Z

Proofreading

Abc: more accurate impact

2025-01-29T15:46:14Z

more accurate impact

← Older revision		Revision as of 15:46, 29 January 2025
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	The private key is used to digitally sign critical operations, such as print jobs and G-code commands. The printer can validate whether received MQTT commands are signed by Bambu Connect using the app's public key, rejecting any unsigned or improperly signed commands.		The private key is used to digitally sign critical operations, such as print jobs and G-code commands. The printer can validate whether received MQTT commands are signed by Bambu Connect using the app's public key, rejecting any unsigned or improperly signed commands.

	Bambu Lab's authorization control system that is meant to increase security is entirely built on the assumption that ~~attackers~~ do not have access to the private key and thus cannot create valid signatures.		Bambu Lab's authorization control system that is meant to increase security is entirely built on the assumption that others do not have access to the private key and thus cannot create valid signatures.

	However, since the private key has already been leaked, third-party software can now ~~send print jobs~~ and ~~G-code commands again, while risks or dangerous situations<ref>[https://archive.is/x7QjG "Firmware Update Introducing New Authorization Control System"] - archive.~~is ~~- archived 2025-01-24</ref> are still not addressed by Bambu Lab~~.		However, since the private key has already been leaked, third-party software can now regain access to the lost functionality, and it is clear that the overall security characteristics have neither improved nor worsened compared to previous updates.

	===Purpose of the certificates===		===Purpose of the certificates===

← Older revision		Revision as of 17:50, 29 January 2025
Line 1:		Line 1:
	<noinclude><div style="padding-left:1.6rem;margin-bottom:0.5rem;">''This is part of the [[Bambu Lab Authorization Control System]] article.''</div></noinclude>		<noinclude><div style="padding-left:1.6rem;margin-bottom:0.5rem;">''This is part of the [[Bambu Lab Authorization Control System]] article.''</div></noinclude>
	Bambu Connect is an [[Help:Electron\|Electron]] ~~App~~ with [[security through obscurity]], which makes it inherently insecure.<noinclude>		Bambu Connect is an [[Help:Electron\|Electron]] app with [[security through obscurity]], which makes it inherently insecure.<noinclude>
	{{GuideNotice}}		{{GuideNotice}}
	The purpose of this guide is to demonstrate the trivial process of extracting the ''"private keys"'' used for communicating with Bambu devices to examine, and challenge, the technical basis for Bambu Lab's security justification of Bambu Connect.		The purpose of this guide is to demonstrate the trivial process of extracting the "private keys" used for communicating with [[Bambu Lab\|Bambu]] devices to examine, and challenge, the technical basis for Bambu Lab's security justification of Bambu Connect.

	'''Update (January 26, 2025)''': Bambu Connect v1.1.3<ref>https://public-cdn.bblmw.com/upgrade/bambu-connect/v1.1.3/bambu-connect-beta-darwin-arm64-v1.1.3_2c73d82.dmg - public-cdn.bblmw.com - accessed 2025-01-29</ref> is no longer obfuscated~~, you~~ can skip all steps related to asarmor, asarfix, Ghidra and string deobfuscation.		'''Update (January 26, 2025)''': Bambu Connect v1.1.3<ref>https://public-cdn.bblmw.com/upgrade/bambu-connect/v1.1.3/bambu-connect-beta-darwin-arm64-v1.1.3_2c73d82.dmg - public-cdn.bblmw.com - accessed 2025-01-29</ref> is no longer obfuscated. You can skip all steps related to asarmor, <code>asarfix</code>, Ghidra, and string deobfuscation.

	To read ~~the~~ main.js for further analysis or extracting the private key stored by Bambu in the app:		To read <code>main.js</code> for further analysis or extracting the private key stored by Bambu in the app:

	#Use the MacOS .dmg file, not the exe~~. Finding~~ the needed decryption code is easier in the .dmg		#Use the MacOS .dmg file, not the .exe (finding the needed decryption code is easier in the .dmg).
	#Extract ''bambu-connect-beta-darwin-arm64-v1.0.4_4bb9cf0.dmg''<ref>https://public-cdn.bblmw.com/upgrade/bambu-connect/bambu-connect-beta-darwin-arm64-v1.0.4_4bb9cf0.dmg - public-cdn.bblmw.com - accessed 2025-01-28</ref>~~, in~~ there you can find the files of the underlying Electron app in <code>Bambu Connect (Beta).app/Contents/Resources</code> folder.		#Extract <code>bambu-connect-beta-darwin-arm64-v1.0.4_4bb9cf0.dmg</code>''.''<ref>https://public-cdn.bblmw.com/upgrade/bambu-connect/bambu-connect-beta-darwin-arm64-v1.0.4_4bb9cf0.dmg - public-cdn.bblmw.com - accessed 2025-01-28</ref> In there you can find the files of the underlying Electron app in the <code>Bambu Connect (Beta).app/Contents/Resources</code> folder.
	#The app uses asarmor to prevent easy reading~~, the~~ key is stored in the mach-o binary located here: <code>/Bambu Connect (Beta).app/Contents/Resources/app.asar.unpacked/.vite/build/main.node</code> and can be extracted. Unpacking app.asar without fixing it first will result in an encrypted main.js file and 100 GB of decoy files generated~~, don~~'t try it.		#The app uses asarmor to prevent easy reading. The key is stored in the mach-o binary located here: <code>/Bambu Connect (Beta).app/Contents/Resources/app.asar.unpacked/.vite/build/main.node</code> and can be extracted. Unpacking <code>app.asar</code> without fixing it first will result in an encrypted <code>main.js</code> file and 100 GB of decoy files generated. Don't try it.
	#Load main.node in Ghidra and Auto-Analyze it. Then search for the GetKey function, or press G and go to <code>0000b67e</code><ref>[https://archive.is/RnFTu "Bambu Firmware to impact use of OrchaSlicer"] - archive.is - archived 2025-01-21</ref>		#Load <code>main.node</code> in Ghidra and Auto-Analyze it. Then search for the GetKey function, or press G and go to <code>0000b67e</code><ref>[https://archive.is/RnFTu "Bambu Firmware to impact use of OrchaSlicer"] - archive.is - archived 2025-01-21</ref>
	#Write down the hex key. You will need to follow the previous steps to get the current key if the provided one does not work. As of 19 January 2025, they are:		#Write down the hex key. You will need to follow the previous steps to get the current key if the provided one does not work. As of 19 January 2025, they are:
	##macOS: <code>B0AE6995063C191D2B404637FBC193AE10DAB86A6BC1B1DE67B5AEE6E03018A2</code>		##macOS: <code>B0AE6995063C191D2B404637FBC193AE10DAB86A6BC1B1DE67B5AEE6E03018A2</code>
Line 17:		Line 17:
	#Install the npm package <code>asarfix</code> and use it to fix the archive: <code>npx asarfix app.asar -k <KEY> -o fixed.asar</code>		#Install the npm package <code>asarfix</code> and use it to fix the archive: <code>npx asarfix app.asar -k <KEY> -o fixed.asar</code>
	#Now you can extract it in cleartext with <code>npx asar extract fixed.asar src</code>		#Now you can extract it in cleartext with <code>npx asar extract fixed.asar src</code>
	#<code>./src/.vite/build/main.js</code> is minified~~, use~~ any JavaScript beautifier (for example <code>prettier</code>) to make it better readable. Interesting user code including the private key is at the end of the file.		#<code>./src/.vite/build/main.js</code> is minified. Use any JavaScript beautifier (for example <code>prettier</code>) to make it better readable. Interesting user code (including the private key) is at the end of the file.

	===Extracting certs and private key===		===Extracting certs and private key===
	The private key and certs are further obfuscated~~, to~~ get cleartext you need to do: Encrypted string from cy() -> ure(string, key) -> RC4 decryption -> decodeURIComponent() -> final string.		The private key and certs are further obfuscated. To get cleartext you need to do: Encrypted string from cy() -> ure(string, key) -> RC4 decryption -> decodeURIComponent() -> final string.

	Example Python reimplementation to extract the secrets, easy to run. Copy the content of t from function cy() in main.js and paste it here. After running, you have a private key from Bambu Lab.		Example Python reimplementation to extract the secrets, easy to run. Copy the content of t from function cy() in <code>main.js</code> and paste it here. After running, you have a private key from Bambu Lab.

	<pre>		<pre>
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	Bambu Lab's authorization control system that is meant to increase security is entirely built on the assumption that others do not have access to the private key and thus cannot create valid signatures.		Bambu Lab's authorization control system that is meant to increase security is entirely built on the assumption that others do not have access to the private key and thus cannot create valid signatures.

	~~However, since~~ the private key has already been leaked, third-party software can now regain access to the lost functionality, and it is clear that the overall security characteristics have neither improved nor worsened compared to previous updates.		Since the private key has already been leaked, however, third-party software can now regain access to the lost functionality, and it is clear that the overall security characteristics have neither improved nor worsened compared to previous updates.

	===Purpose of the certificates===		===Purpose of the certificates===
	The private key corresponds to the public key contained in the app's certificate. This certificate is sent to the printer, allowing it to verify the authenticity of the digital signature using the public key.		The private key corresponds to the public key contained in the app's certificate. This certificate is sent to the printer, allowing it to verify the authenticity of the digital signature using the public key.

	Bambu Connect continues to work after these certificates expire. ~~Due to~~ how ~~they~~ are used, it is also unlikely that it causes the printer to get "bricked", but this needs to be proven through experiments or firmware analysis.		Bambu Connect continues to work after these certificates expire. Because of how these certificates are used, it is also unlikely that it<sup>[''what?'']</sup> causes the printer to get "bricked", but this needs to be proven through experiments or firmware analysis.

	===Additional security measures===		===Additional security measures===
	Bambu Connect also encrypts G-code commands and file paths of print operations using the printer's public key. This ensures that only the intended printer can decrypt the data, rather than all authenticated MQTT clients and the cloud~~, adding~~ another layer of security.		Bambu Connect also encrypts G-code commands and file paths of print operations using the printer's public key. This ensures that only the intended printer can decrypt the data, rather than all authenticated MQTT clients and the cloud. This adds another layer of security.

	~~However, the~~ potential security benefits are diminished because both the encrypted and plain text strings are sent at the same time, likely ~~due to~~ negligence or the need for backwards compatibility.		The potential security benefits are diminished, however, because both the encrypted and plain-text strings are sent at the same time, likely because of negligence or the need for backwards compatibility.

	Note that network traffic is encrypted ~~via~~ TLS regardless of this, ensuring that no middleman can decrypt it.		Note that network traffic is encrypted by TLS regardless of this, ensuring that no middleman can decrypt it.

	==References==		==References==