KIT Scientists Design Chemical Compounds for Use as Passwords for Encrypted Information – Publication in Nature Communications
In the digital age, security of sensitive information is of utmost importance. Many data are encrypted before they enter the data highway. Mostly, these methods use a password for decryption, and in most cases, exactly this password is the entrance gate for hackers. Scientists of Karlsruhe Institute of Technology (KIT) use a new and highly secure approach by combining computer science with chemistry and a conventional encryption method with a chemical password.
Their development is now reported in an open access publication in Nature Communications. (DOI: 10.1038/s41467-018-03784-x ).
Today, very good and highly effective encryption programs exist, which are difficult to overcome, provided that the computer capacity is limited. The password, however, always remains the weak point. If it is badly chosen and does not meet the necessary security requirements, it is the Achilles heel of entire encryption. Exactly here is the starting point of work of the scientists of KIT: They conceal the information of the password in a small organic molecule. And while the encrypted digital information can travel publicly, the key to read the information is transported invisibly and without the knowledge of the environment in a form of a small volume of a chemical compound, e.g. as a droplet on paper.
Computer science meets chemistry: Encryption and decryption in detail. (Graphics: Andreas Boukis, KIT)
“Of course, this method is only suited for applications requiring high security levels and, hence, justifying a high expenditure, examples being the transmission of intelligence or communication of embassies,” says Professor Michael Meier of KIT’s Institute of Organic Chemistry. Other applications might be identification or anti counterfeit tags. We can work with smallest amounts and also find them in materials, in which other chemical compounds, such as DNA molecules, cannot be used,” first author Andreas Boukis adds. The scientists succeeded in reliably isolating chemical keys from various carrier materials, such as paper, perfume, instant coffee, green tea, sugar, and even pork blood.
Application of the password in the form of a molecule, sending the message, extracting the molecule, and decryption: The simplified representation above illustrates a highly complex and highly secure method. (Photos: Amadeus Bramsiepe, KIT; graphics: Leon Kühner, KIT)
The information of the chemical key is hidden in the sequence of building blocks and the attached sidechains. Each of these chemical components is assigned a letter and a number. Depending on which components are synthesized in which sequence and with which sidechains, an individual alphanumerical code results for the password molecule. It is read out with a specially developed computer program and converted into a binary code. For synthesis, the scientists used a conventional so-called multi-component reaction. It allows to synthesize a previously defined molecule in one step with a small expenditure. As basic components, the researchers selected suitable commercially available compounds. With this database of 130 different basic compounds, 500,000 chemical keys can be synthesized, containing a basic information of 18 bits each. By combining various chemical keys that can also be transmitted at various times and places, information storage capacity and, hence, security can be further increased. As the compounds are highly robust, they are suited for a variety of carrier materials. Thanks to another property, they are also easy to find: At a certain position, they have a special sidechain that facilitates recovery, so-called perfluoroalkyls. Their properties are similar to those of teflon, i.e. they do not like to interact with aqueous (polar) or fatty (unpolar) media, but only with other perfluorinated compounds. For this rea [Textfeld: Computer science meets chemistry: Encryption and decryption in detail. (Graphics: Andreas Boukis, KIT)] son, these molecules can be separated selectively from a mixture. The isolated compounds are then analyzed using a conventional highly sensitive analysis method, mass spectrometry. The mass of entire molecules, but also of defined fragments is determined. If the library of the 130 possible initial components is known, conclusions can be drawn with respect to the molecule and the password for decryption can be read out.
“The idea to send information via secret channels is not new. But our process is characterized by the fact that we provide a highly robust secret channel that needs minimum amounts of the key molecule only,” Professor Dennis Hofheinz of the Institute of Theoretical Informatics summarizes the advantages of chemical passwords.
Learn more: Agent 007: Organic Molecules as Bearers of Secrets
The Latest on: Encryption
via Google News
The Latest on: Encryption
- Stardust is the first period tracker app to offer end to end encryptionon June 26, 2022 at 7:21 am
Wade, period tracking apps have become a new area of digital concern, as many question whether the apps' stored personal health data could be used to target people seeking abortion care. SEE ALSO: ...
- We're now truly in the era of ransomware as pure extortion without the encryptionon June 25, 2022 at 3:46 am
"Only by working together with key law enforcement and prosecutorial partners in the EU can we effectively combat the threat that ransomware poses to our society," said US assistant attorney general ...
- Hardware Encryption Market 2022 Industry Updates, Future Growth, Business Prospects, Forecast to 2026on June 23, 2022 at 11:42 pm
Hardware Encryption market (US, Europe, Asia-Pacific) 2022 research includes historical and forecast data, demand, application details, price trends, and company shares of the leading Hardware ...
- Google Password Manager Gets On-Device Encryption: How It Workson June 23, 2022 at 7:40 am
Google Password Manager will be more secure thanks to on-device encryption which means your passwords will be encrypted as a unique string of an alphanumeric key. Let’s see how it works.
- How to Set Up Google Password Manager's On-Device Encryption for iOS, Chrome, and Androidon June 22, 2022 at 6:16 pm
Eventually, Google and other big tech companies want to dispense with passwords entirely, but until that day comes, a Google Password Manager feature called on-device encryption might be your best bet ...
- Mega's unbreakable encryption proves to be anything buton June 22, 2022 at 2:00 pm
Mega, the New Zealand-based file-sharing biz co-founded a decade ago by Kim Dotcom, promotes its "privacy by design" and user-controlled encryption keys to claim that data stored on Mega's servers can ...
- We Don’t Have to Sacrifice Encryption to Achieve Messaging Interoperabilityon June 22, 2022 at 11:05 am
In simple terms, the agreed-to language would require large online platforms that offer instant messaging capability, such as WhatsApp, Apple iMessage, or Google Meet, to allow other messaging ...
- Google Password Manager gains on-device encryption, home screen shortcuton June 22, 2022 at 10:51 am
As Chrome users, we are all familiar with its built-in password manager and how handy it can be for auto-filling saved passwords for us without much fuss. Although many may opt for a more feature-rich ...
- Researchers Uncover Ways to Break the Encryption of 'MEGA' Cloud Storage Serviceon June 22, 2022 at 8:05 am
Researchers demonstrated five different cryptographic attacks to break the encryption of the cloud storage service MEGA.
via Bing News