John is an expert in cryptographic algorithms and security protocols at Ericsson Research in Stockholm, Sweden. His work focuses on applied cryptography, security protocols, privacy, IoT security, post-quantum cryptography, and trade compliance. During his almost 20 years at Ericsson, he has worked with a lot of different technology areas and been active in many security standardization organizations including IETF, IRTF, 3GPP, GSMA, and NIST where he has significantly influenced cryptography, Internet, and cellular security standards. In addition to designing new protocols, John has also found significant attacks on many algorithms and protocols. John holds an MSc in engineering physics from KTH Royal Institute of Technology, Sweden, and an MSc in business administration and economics from Stockholm University.
The mobile industry, with its unique characteristics, has been preparing for the transition to quantum-resistant cryptography for many years. As truly global standards, 4G and 5G require algorithms that are universally trusted and secure across all regions. Mobile networks are considered critical infrastructure, heavily regulated, and expected to adhere to government recommendations for migration timelines. However, performance and costs remain high priorities, which differs from national security systems. Hardware like base stations has a long lifecycle, often remaining in service for decades. 5G and 6G standards, heavily reliant on IETF standards for public-key cryptography, will introduce quantum-resistant algorithms in 2027–2028, and 6G will be quantum-resistant by design. This talk will discuss these challenges and the industry’s plans to overcome them.
Check out the incredible speaker line-up to see who will be joining John.
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