The National Institute of Standards and Technology (NIST) announced that ASCON is the winning bid for the "lightweight cryptography" program to find the best algorithm to protect small IoT (Internet of Things) devices with limited hardware resources. BleepingComputer reports: ASCON was selected as the best of the 57 proposals submitted to NIST, several rounds of security analysis by leading cryptographers, implementation and benchmarking results, and feedback received during workshops. The whole program lasted for four years, having started in 2019. NIST says all ten finalists exhibited exceptional performance that surpassed the set standards without raising security concerns, making the final selection very hard. ASCON was eventually picked as the winner for being flexible, encompassing seven families, energy efficient, speedy on weak hardware, and having low overhead for short messages. NIST also considered that the algorithm had withstood the test of time, having been developed in 2014 by a team of cryptographers from Graz University of Technology, Infineon Technologies, Lamarr Security Research, and Radboud University, and winning the CAESAR cryptographic competition's "lightweight encryption" category in 2019. Two of ASCON's native features highlighted in NIST's announcement are AEAD (Authenticated Encryption with Associated Data) and hashing. AEAD is an encryption mode that provides confidentiality and authenticity for transmitted or stored data, combining symmetric encryption and MAC (message authentication code) to prevent unauthorized access or tampering. Hashing is a data integrity verification mechanism that creates a string of characters (hash) from unique inputs, allowing two data exchange points to validate that the encrypted message has not been tampered with. Despite ASCON's lightweight nature, NIST says the scheme is powerful enough to offer some resistance to attacks from powerful quantum computers at its standard 128-bit nonce. However, this is not the goal or purpose of this standard, and lightweight cryptography algorithms should only be used for protecting ephemeral secrets. For more details on ASCON, check the algorithm's website, or read the technical paper (PDF) submitted to NIST in May 2021.

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An anonymous reader quotes a report from Motherboard: A section of the UK government has proposed making the sale or possession of bespoke encrypted phones for crime a criminal offense in its own right. The measure is intended to help the country's law enforcement agencies tackle organized crime and those who facilitate it, but civil liberties experts tell Motherboard the proposal is overbroad and poorly defined, meaning it could sweep up other forms of secure communication used by the wider population if not adjusted. "At the moment the government proposal appears to be vague and overly broad. While it states that the provisions 'will not apply to commercially available mobile phones nor the encrypted messaging apps available on them' it is difficult to see how it will not result in targeting devices used on a daily [basis] by human rights defenders, protesters and pretty much all of us who want to keep our data secure," Ioannis Kouvakas, senior legal officer and assistant general counsel at UK-based activism organization Privacy International, told Motherboard in an email. The proposal is included in a document published by the Home Office (PDF). In that document, the Home Office proposes two legislative measures that it says could be used to improve law enforcement's response to serious and organized crime, and is seeking input from law enforcement, businesses, lawyers, civil liberties NGOs, and the wider public. [...] The first measure looks to create new criminal offenses on the "making, modifying, supply, offering to supply and possession of articles for use in serious crime." The document points to several specific items: vehicle concealments used to hide illicit goods; digital templates for 3D-printing firearms; pill presses used in the drug trade; and "sophisticated encrypted communication devices used to facilitate organized crime." In other words, this change would criminalize owning an encrypted phone, selling one, or making one for use in crime, a crime in itself. [...] With encrypted phones, the Home Office writes that both the encryption itself and modifications made to the phones are creating "considerable barriers" to law enforcement. Typically, phones from this industry use end-to-end encryption, meaning that messages are encrypted before leaving the device, rendering any interception by law enforcement ineffective. (Multiple agencies have instead found misconfigurations in how companies' encryption works, or hacked into firms, to circumvent this protection). Encrypted phone companies sometimes physically remove the microphone, camera, and GPS functionality from handsets too. Often distributors sell these phones for thousands of dollars for yearly subscriptions. Given that price, the Home Office says it is "harder to foresee a need for anyone to use them for legitimate, legal reasons." The Home Office adds that under one option for legislation, laws could still criminalize people who did not suspect the technology would be used for serious crime, simply because the technology is so "closely associated with serious crime." Potential signs could include someone paying for a phone "through means which disguise the identity of the payer," the document reads. Often distributors sell phones for Bitcoin or cash, according to multiple encrypted phone sellers that spoke to Motherboard. The document says "the provisions will not apply to commercially available mobile phones nor the encrypted messaging apps available on them." But the Home Office does not yet have a settled definition of what encompasses "sophisticated encrypted communication devices," leaving open the question of what exactly the UK would be prepared to charge a person for possessing or selling.

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