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Villanova Professor at the Forefront of Work to Tackle Quantum Threats

Jiafeng Xie, PhD, associate professor of Electrical and Computer Engineering, is working to strengthen security against threats posed by quantum computers

Oct 17, 2024

5 min

Securing Our Future Against Quantum Threats


Security and privacy are values that everyone cherishes. No tech user wants their personal information getting into the wrong hands, which is why we have security measures in place to protect our private data: face ID to unlock our phones, two-factor authentication to log into banking apps and fingerprint technology to securely enter any system—from a computer to your front door. Encryption codes are used on each of these platforms to encode private data and allow only authorized users to access it. These measures are put in place to protect us, but new advancements in technology could soon challenge these secure systems that we have come to know and trust.


Quantum computers are extraordinary machines capable of solving problems far beyond the scope of today’s standard computers. Although these computers are not commercially available, scientists harness their power for experimentation and data storage. Quantum computers excel in scientific development, but they may also prove to be a threat to existing technology that we use in our daily lives. Experts predict that by 2035, quantum computers could crack the very encryption codes that secure everyday transactions and data.


Jiafeng Xie, PhD, associate professor of Electrical and Computer Engineering at Villanova University, is at the forefront of this battle, using his Security and Cryptography Lab to strengthen security measures against the threat of quantum computers.


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The Rise of Post-Quantum Cryptography


Since quantum computer advancements are accelerating at an unprecedented pace, post-quantum cryptography (PQC) has emerged as a critical area of research and development. Scientists who study PQC are working to come up with new algorithms to encode our sensitive data, with a goal of being installed after quantum computers crack our current encryption systems. Without these new algorithms, once quantum computers break our current codes, sensitive data—whether personal, corporate or governmental—could be left vulnerable to malicious actors.


The core problem of our current encryption system lies in the foundation of public-key cryptosystems. Public-key cryptography is a method of encryption where the user logs into a system using their own private “key”, and the back end of the system has a “key” as well. A “key” is a large numerical value that scrambles data so that it appears random. When a user logs in, their “key” can decrypt private information held by the public “key” in the system to ensure a secure login.


This security method is safe right now, but these systems rely on mathematical principles that, while secure against classical computing attacks, are vulnerable to the immense processing power of quantum computers.


At the heart of the vulnerability is Shor's algorithm, developed by MIT computer scientist Peter Shor in 1994. As Dr. Xie explained, “Shor invented an algorithm to solve prime factors of an integer that can supposedly run on a quantum computer. This algorithm, if run on a large-scale mature quantum computer, can easily solve all these existing cryptosystems' mathematical formulation, which is a problem."


The realization of this potential threat has spurred an increased focus on the development of post-quantum cryptography over the past decade. The goal is clear: "We want to have some sort of cryptosystem that is resistant to quantum computer attacks," says Dr. Xie.


In 2016, the National Institute of Standards and Technology (NIST) began the process of standardizing post-quantum cryptography. In July 2022, NIST selected four algorithms to continue on to the standardization process, where they are currently being tested for safety and security against quantum computers. The standardization process for these new algorithms is intensive, and two of the candidates that were announced for testing have already been broken during the process. Scientists are in a race against time to increase the diversity of their algorithms and come up with alternate options for standardization.


The urgency of this shift to post-quantum cryptography is underscored by recent government action. The White House released a national security memo in 2022 stating that the U.S. government must transition to quantum-resistant algorithms by 2035. This directive emphasizes the critical nature of post-quantum cryptography in maintaining not just personal but national security.


Villanova’s Security and Cryptography Lab


Once a new algorithm is selected by NIST, it will need to be embedded into various platforms that need to be secured—this is where Dr. Xie’s Security and Cryptography Lab comes in. This lab is actively conducting research into how the newly selected algorithm can be implemented in the most effective and resourceful way. The lab team is working on developing techniques for this new algorithm so that it can be embedded into many different types of platforms, including credit cards and fingerprint technology.


However, there are significant challenges in this process. As Dr. Xie explains, "Different platforms have different constraints. A chip-based credit card, for example, has limited space for embedding new encryption systems. If the implementation technique is too large, it simply won’t work.”


Another arising issue from this research is security. During the application of this new algorithm, there's a risk of information or security leakage, so Dr. Xie is always on the lookout for developing security issues that could cause problems down the road.



The Future of Post-Quantum Cryptography


The implications of PQC are widespread and extend far beyond academic research. As Dr. Xie points out, "All existing cryptosystems, as long as they have some sort of function—for example, signing in or entering a password for login—all of these systems are vulnerable to quantum attacks."


This vulnerability affects everything from banking systems to small-scale security measures like fingerprint door locks.


The scope of this transition is massive, requiring updates to encrypted systems across all sectors of technology. His goal is to ensure that these new cryptographic systems are flexible enough to be applied to everything from small devices like credit cards and drones to large-scale infrastructure like data centers and military equipment.


Although researchers are hard at work now, the future of post-quantum cryptography is not without uncertainties. Dr. Xie raises an important question: "When quantum computers become available, will the algorithms we develop today be broken?"


While the newly developed algorithms will theoretically be secure, vulnerabilities can emerge when implementing any kind of new security system. These potential vulnerabilities highlight the importance of conducting this research now so that the new algorithms can go through intensive testing prior to being implemented.


Despite these challenges, Dr. Xie emphasizes the importance of being prepared for this new reality. "Society as a whole needs to be prepared with this kind of knowledge,” he says. “A new era is coming. With our current security systems, we need to have revolutionized change. On the other hand, we should not be panicked. We just need continued support to do more related research in this field.”


More extensive research is required to ensure that our privacy is protected as we enter a new era of quantum computing, but labs like the Security and Cryptography Lab at Villanova are a step in the right direction. Although the “years to quantum” clock is ticking down, researchers like Dr. Xie are well on their way to ensuring that our digital infrastructure remains secure in the face of evolving technological threats.

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100 Years After the “Launch” of Aerospace Industry, Villanova Faculty Continue to Innovate the Sector featured image

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100 Years After the “Launch” of Aerospace Industry, Villanova Faculty Continue to Innovate the Sector

In 1926, Robert H. Goddard launched the world’s first liquid-fueled rocket in Auburn, Mass. Goddard’s 10-foot-tall rocket was airborne for just 2.5 seconds, reaching speeds of 60 miles per hour before landing 184 feet away from the launch site. A century later, the aerospace industry is booming, with new technology and missions making headlines every day—some with incredible success, and others encountering challenges that send scientists back to the drawing board. In February 2026, NASA delayed the launch of Artemis II—its next mission to the moon—citing issues with helium flow in the rocket’s systems. By April, the mission was on track again, and Artemis II completed the first crewed flight to the moon in more than half a century. Crew members for the upcoming Artemis III mission were also recently announced, as well as a timeline and overview for Artemis IV, the first planned crewed mission to the lunar South Pole in 2028. Amid these successes and setbacks, researchers continue to innovate the field and develop new technologies designed to help expand our knowledge of the vast universe. That innovation comes from diverse and unique places, including Villanova University. Research in Flight Student interest in aerospace led to the creation of a Master of Science in Aerospace Engineering (MSAE) program at Villanova University, which began in the Fall 2025 semester. Sergey Nersesov, PhD, associate professor of Mechanical Engineering, was instrumental in the inception of the MSAE program and helped develop courses in space flight mechanics, applied aerodynamics, aerospace structures analysis and advanced flight dynamics and control, among others. The idea for the graduate program was inspired by the growing popularity of the College of Engineering’s Minor in Aerospace Engineering. The minor attracts students from across the university, drawing from other majors and colleges at Villanova. For example, Dr. Nersesov recently collaborated on a research project focused on spacecraft and satellite control systems with Aedan Disanto ‘26 CLAS, an astrophysics and planetary sciences major and aerospace engineering minor. “If you look up at the sky, sometimes you see satellites chasing each other,” said Dr. Nersesov. “Dynamics and control researchers develop algorithms to ensure proper spacing between the satellites so they can function correctly.” The spacing between satellites is crucial to avoid collision, which is also a potential issue when a spacecraft approaches a space station to dock. In this situation the velocities, rotation and orientation of both vehicles are carefully controlled so that docking mechanisms align correctly, which requires up to 12 variables to be coordinated simultaneously. Dr. Nersesov and Disanto analyzed the algorithms needed to guarantee perfect satellite function and built upon them, discovering more efficient ways to operate vehicles in space. This summer, Dr. Nersesov and his students will also begin designing a prototype for a new kind of drone. Typical drones use ample amounts of energy to become airborne and capture photos or video content because they rely entirely on thrust to hold themselves up. To improve effectiveness, Dr. Nersesov and his students aim to create a drone in the style of an airplane, with vertical takeoff and landing (VTOL) capability. The drone will take off vertically, like a helicopter, but then transition to flying horizontally like an airplane, allowing lift from the wings to reduce the energy needed to stay airborne. As a result, it could stay in the air up to ten times longer than a hovering drone. While the project focuses on a single aircraft design, it represents the type of forward-thinking research driving the aerospace field today. Aerospace Engineering with Biology Elsewhere, Qianhong Wu, PhD, chair of Mechanical Engineering in the College of Engineering, is exploring a concept called super-lubrication, inspired by the way red blood cells move through the human body. Blood cells travel through capillaries narrower than their own diameter without damaging themselves or the vessel walls. A soft, porous layer called the endothelial glycocalyx within the vessels allows cells to glide through, reducing friction. In studying this biological process, an idea emerged that could potentially be translated to the aerospace field. Dr. Wu’s team is currently applying their deep understanding of biomechanical processes to applications that might reduce aerodynamic friction on aircraft surfaces by more than 90 percent. This lower friction may also improve fuel efficiency and extend flight endurance for drones or other aircraft. “Our work is an example of how thinking outside your traditional field can lead to innovation,” said Dr. Wu. “Sometimes the solution comes from a completely different subject, like biology.” A Century of Momentum One hundred years after Goddard’s brief but groundbreaking flight, aerospace innovation has expanded far beyond its earliest experiments. Today, progress in the field depends not only on major missions and milestones, but also on the steady work of researchers refining systems and exploring new ideas. At Villanova, that work is taking shape across disciplines—from spacecraft control systems to biologically inspired materials. Together, these efforts reflect how the field continues to evolve through collaboration and creativity.

Villanova Researcher Authors Comprehensive Look at Large Outdoor Gatherings and Severe Weather Risk featured image

5 min

Villanova Researcher Authors Comprehensive Look at Large Outdoor Gatherings and Severe Weather Risk

If Benjamin Franklin had modern climatological data to consult, he may have scheduled his famous kite and key experiment for July of 1753 in Philadelphia, instead of a month sooner. July, after all, is Philadelphia’s most active month for lightning strikes, noted Stephen Strader, PhD, associate professor of Geography and the Environment and severe weather geographer at Villanova University. Lightning has been on Dr. Strader’s mind recently. In Spring 2025, he and a colleague published a study in Weather, Climate, and Society where they developed a metric to comprehensively rank more than 475 “large outdoor gatherings” in the U.S. in terms of greatest lightning risk, weak (EF0+) tornadoes and strong or significant (EF2+) tornadoes. The rankings factored in time of year, frequency of events, attendance and capacity, which was then compared to tornado/lightning climatology data for the venue location. With major outdoor events scheduled throughout the summer in Philadelphia, Dr. Strader recently reanalyzed his data to include gatherings like the FIFA World Cup, MLB All-Star Game and America 250 celebrations in the city. What he found was that many of these gatherings—when compared to other large outdoor gatherings across the country—are among the most likely to experience certain severe weather events. “While it is too soon to predict what the weather will be like for each of these events, the climatology does suggest that if severe inclement weather threatens them, many people could be exposed to deadly hazards such as lightning and tornadoes,” he said. “The key is for venue organizers, first responders and event attendees to be informed, not alarmed.” Preparedness Lessens Impact Every year, thousands of sports games, concerts, fairs, parades and days at amusement parks occur without weather-related safety incidents. But every now and again one does, sometimes with tragic results. In 2011, a spectator at Pocono Raceway was struck and killed by lightning in the parking lot after the race was halted due to weather. One year later, a sudden strong wind from an approaching storm collapsed a grandstand at the Indiana State Fair, causing seven fatalities and dozens of injuries. The objective of Dr. Strader’s research was to find what venues are most likely, comparatively, to experience these extremely rare worst-case scenario exposures. By doing so, he hopes that it will help venues and organizers to understand how they can plan, execute or update their preparedness and protocol, so that their impacts are less deadly when they do occur. “The idea isn’t to scare people,” he said. “Most of these venues and entities know that they're at risk for inclement weather. My hope is that those who do have a plan in place re-evaluate them, and think, based on the climatology, how they can adapt. For those who don’t, the goal is to make them aware of their risk so they can begin to plan. “There's a mental side to this too. Every year that goes by where there's not an issue or incident, people get increasingly relaxed. It’s a reminder to stay vigilant.” Many of the large outdoor gatherings that appear high in the research rankings do have robust protocols and infrastructure. For example, amusement parks score very high for lightning risk because they are open almost every day of the year to huge crowds, and many are located in states that experience frequent severe weather, like Florida and Texas. “But places like Disney World have comprehensive preparedness plans—they have people hired to understand and be aware of these threats,” Dr. Strader said. “Attendees have ample places to seek shelter.” The same is true, to varying extents with sporting venues, especially major professional sports stadiums. Even though gatherings held there may rank higher for these weather events, the chances of a catastrophe are lessened because of preparedness, protocol and infrastructure. Where Dr. Strader is more concerned is with gatherings like parades and fairs, especially when they last for multiple days and/or draw large crowds. “A state fair tends to be more ‘mom and pop’ at times, and they lack permanent infrastructure,” he said. “Vendors set up in temporary structures and a lot of times there are no places for attendees to seek shelter when thunderstorms threaten. You're also dealing with a transient population—people who don't know the area, and don’t know where to go when severe weather hits. “Parades are kind of a free for all in that you can come and go as you please. This is one of the reasons venues take tickets—so they understand their capacity to deal with an emergency. But if you have a place that doesn't do that, it can be tricky.” How Philadelphia’s 2026 Events Rank So, what exactly did Dr. Strader find when factoring in this summer’s events in and near the City of Brotherly Love, and what does it mean? In terms of lightning risk, several events and venues rank in the 80th percentile and greater for potential exposure compared to all other documented U.S. large outdoor gatherings. Citizens Bank Park, the host of the MLB All-Star Game in July, ranks in the 95th percentile. America 250 celebrations on July 4 rank in the 94th percentile, while FIFA World Cup events at Lincoln Financial Field rank 87th in June and 94th in July. For tornado threats to all nationwide events, Citizens Bank Park tops all local functions in July at the 96th percentile. The America 250 celebration ranks in the 95th, FIFA World Cup the 94th and MLB All-Star Game the 78th percentile for tornado exposure in that same month. According to Dr. Strader, lightning is often the bigger concern because it is far less predictable than tornadoes. While events are frequently canceled ahead of a credible tornado threat, they are less likely to be canceled due to the possibility of lightning. “Although lightning [strikes] and tornadoes are not very common in southeastern Pennsylvania, the large number of people gathered for these events sets up a ‘what if’ situation where tens of thousands of individuals could be threatened by severe weather,” he said. “Based on these findings, venue operators and governing bodies should continue to develop risk reduction strategies aimed at improving lightning and tornado safety, especially as lightning and tornado hazard threats evolve over time and across geographic space.” It is not only operators and organizers who should be prepared. Patrons, he says, can also devise and enact their own personal preparedness plan in the event of sudden severe weather. Teaching children simple sayings such as “when thunder roars go indoors” and scoping out potential places for shelter can go a long way in the event of severe weather—especially at come-and-go, transient events like America 250 festivities. “And if you see approaching clouds on July 4, maybe find another way to pay homage to Ben Franklin, and pull down your kite.”

Villanova Sports Business Expert Bret Myers, PhD, Previews the World Cup featured image

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Villanova Sports Business Expert Bret Myers, PhD, Previews the World Cup

Move over, American football fans. Hello, American… fútbol fans. Soon, the homes of NFL franchises like the Kansas City Chiefs, Dallas Cowboys and Philadelphia Eagles will play host to the 2026 FIFA World Cup, returning to the United States for the first time in 32 years. Through five-plus weeks of action-packed matches, soccer lovers from across the country—alongside more than 1.2 million international visitors—will flock to the nation’s metro areas to take in and celebrate the “beautiful game,” contributing to an atmosphere of revelry, drama and overall excitement. One person adding to the chorus of “olé”s will be Bret Myers, PhD, a sports business expert and professor of the practice of Management and Operations at Villanova University. Formerly a consultant with the Philadelphia Union, the Columbus Crew and Toronto FC, he recently shared some thoughts concerning the upcoming World Cup, its stateside appeal and the latest developments relating to the international contest. Q: The last World Cup game played on U.S. soil took place in 1994. How has soccer’s profile, and the American relationship with the sport, evolved since then? Dr. Myers: Undoubtedly, soccer has grown in this country since 1994 across all relevant metrics—namely, youth participation and academy development, domestic professional league development, TV and streaming viewership and the strength of the national team. A recent Economist survey even identified soccer as the third most popular sport in the country. A lot of that can be attributed to different demographic trends. Many Gen Xers grew up playing and following the sport, and Millennials and younger have become accustomed to engaging with it through social media. The popularity of EA Sports’ FIFA on gaming consoles has also helped with brand and player recognitions domestically. That said, while there have been many positive signs of growth, it is still a complex landscape in the U.S. Major League Soccer (MLS) has increased in quality over its 30 years of existence, but it has been challenging for them to carry the same kind of stature and appeal as the English Premier League, Mexico’s Liga MX, Spain’s La Liga and Germany’s Bundesliga—whose global broadcast rights and merchandising have attracted a lot of American fans due to higher standards of play and tradition. Q: How effective are promotions surrounding the World Cup? And do domestic professional and youth soccer teams benefit from the interest cultivated? DM: Honestly, it doesn’t take much to generate interest in World Cup games. Back in 1994, promotional efforts were arguably more important because soccer was in its infant stages of growth in the U.S., and the ticket prices were accordingly much lower, to spur demand. For this year’s World Cup, there’s an inverse problem. There is so much demand that FIFA is capitalizing with high ticket prices, unfortunately pricing out a lot of avid soccer fans. As for youth soccer and MLS, I don’t see a direct relationship between the promotional effort for the World Cup and the dynamics there. Participation in youth soccer is already high, and it has become a very competitive landscape with a lot of different tiers across multiple age groups, male and female. Meanwhile, MLS interest and ticket sales really boil down to the talent the league attracts. For instance, Lionel Messi’s decision to sign with Inter Miami was an enormous lift factor, bumping up attendance levels and increasing revenue levels for tickets, sponsorships and broadcast rights. Q: This year’s competition marks the first that will feature 48 teams, up from 32 previously. Could you speak about the logic and potential benefits of boosting the number of participants? DM: With the expansion of the World Cup field, there are certainly revenue benefits that come with more matches, more ticket sales, more consumption by fans and more viewership potential. That is the business side of things. From a competition standpoint, the clear beneficiaries are the smaller nations from less competitive continents that get the opportunity to participate, like Curaçao and Cape Verde. These teams are not going to win the World Cup, but they will make things interesting at times in the group phase, as there is always the potential for a surprise knockout or qualification for the next stage. Q: As Sports Illustrated reports, a series of rule changes have been put into effect for the World Cup to “maximize fairness and eliminate the dark arts.” Do you see any of these tweaks meaningfully impacting the product on the pitch? DM: While I think it’s good that FIFA is continuing to examine how to make the game safer, fairer and more exciting, I don’t think the World Cup is the place to experiment. Players should have the chance to get accustomed to rule changes during other types of competitions, so that they can better understand how they are being enforced. That said, in the long term, I think the proposed changes [aimed at preventing time-wasting and feigned injuries] will impact the sport positively. On-field theatrics compromise the integrity of the game, and most fans pick up on it and don’t appreciate it. Q: What elements of the upcoming tourney have you most excited? Are there any particular trends or stories you suggest fans track? DM: Personally, I’m satisfied to see that certain players are defying the traditional notion of an “age curve.” Many countries have players over 35 on their roster, with some of the bigger names being Messi (38), Cristiano Ronaldo (41) and U.S. team captain Tim Ream (38). It is also interesting to see the other end of the spectrum, with emerging talents like Spain’s Lamine Yamal (18) and Brazil’s Estêvão (19). With all the “GOATs” and “young bucks,” it isn’t exactly clear who is effectively the best player in the world right now. It’ll be interesting to see who emerges at the end of the World Cup to stake a claim.

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