According to French, German and Norwegian researchers, the GEA-1 and GEA-2 encryption algorithms used in mobile data networks in the 1990s and 2000s have been weakened, one of them from the outset. Based on 2G technology, they were intended to secure the General Packet Radio Service (GPRS) standard. Today, this network continues to be used for M2M systems or as a backup for data, SMS and mobile calls. Most of today's terminals are GPRS-enabled.

The aim of these two algorithms is to secure the transfer of data between phones and base stations in order to avoid the interception of communications. However, the experts found, for example, that GEA-1 did not encrypt in 64 bits as expected but only in 40 bits. With a lower security level, a computer network can more easily discover the key by brute force and read the streams.

To support this theory, specialists reverse engineered GEA-1 and GEA-2. By recreating the former, they found that their algorithm was more secure than the original version. Disregarding the notion of chance, they believe that this weakening of security was intended from the design of the algorithm.

These algorithms were developed by the European Telecommunications Standards Institute (ETSI) in 1998 by a dedicated working group. The European body admitted that GEA-1 contained a weakness. But it explained that it had been introduced to comply with export regulations which did not allow for stronger encryption. For GEA-2, the rules were relaxed at the time of its design, but the researchers were able to decrypt the traffic. They therefore recommend relying on the more robust GEA-3 and higher algorithm.

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Source : Le Monde Informatique

On October 23rd, the Arcep validated an amendment to the roaming contract that already bound the two operators. Free will thus be able to use Orange's 2G and 3G networks for its own commercial offers until December 31, 2022 instead of December 31, 2020. This is despite criticism from SFR, Bouygues Telecom or other alternative operators grouped within the Alternative Telecom association.

To justify its delay in deploying its own 2G and 3G infrastructures, the operator founded by Xavier Niel denounced the mutualization of networks signed in 2014 by Bouygues Telecom and SFR, the reinforced 4G deployment obligations imposed by the New Mobile Deal, and the lack of frequencies.

This argument hit the nail on the head with the Arcep, which nevertheless maintained the cap on the maximum upload and download speeds achievable by roaming customers at 384 kbits.

Even if the Arcep assures that it will "remain attentive to the continued investment by Free Mobile in the deployment of its own networks", this is not enough to calm the criticism of those opposed to this extension.

Starting with the management of SFR, for whom "ten years after obtaining its 3G license, this roaming agreement granted to Free Mobile is only the admission of a crying lack of investment by Free Mobile during all these years".

For its part, Bouygues Telecom points out that "roaming was designed from the outset as a transitional measure, with the sole aim of enabling the new entrant to compensate for its late entry into the market". However, "Free can no longer be described as a new entrant in the mobile telephony market" and "now has a network that is broadly comparable to that of its competitors, and therefore quite sufficient to enable it to compete vigorously" in the mobile market."

Alternative operators point out that the license granted to Free Mobile by the authorities was awarded "in exchange for ambitious commitments to stimulate competition".

These criticisms did not prevent the extension of the roaming agreement between Free and Orange. Even if Free's management is now tending to catch up in terms of deployment, it is not certain that this will be enough to calm the slings and arrows of its competitors. Especially since the recent statements of Orange's CEO concerning a possible mutualization of the two operators' 5G networks should not help to pacify the debate.

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Source : ZDNet

Even though its network had not yet been built, Free Mobile was able to play a real role as the fourth largest telecoms operator on the French market as soon as it arrived in 2012. How did this happen? Thanks to the 2G / 3G roaming agreement negotiated with Orange.

An agreement validated by the Arcep on the condition that it is only temporary. Roaming between Orange and Free was therefore scheduled to end at the end of 2020 but both operators have just requested an extension until the end of 2022.

On February 24th, the Arcep indicated that it had received an amendment announcing an extension until December 31, 2022. This amendment is justified by "the impossibility for Free Mobile to catch up with the market coverage standard which has increased significantly with the Crozon mutualisation agreement and the New Deal obligations despite a very proactive deployment".

Free also points to the need for 2G coverage in order to maintain a certain number of subscribers in 2G but without having the resources to deploy a network. In addition, the other operators maintain 2G as a "fallback technology in certain situations, particularly indoors at peak times".

This news is not going to be well received by Bouygues Telecom and SFR. Indeed, they have constantly denounced the roaming agreement between their competitors, considering it to be a competitive advantage for Free.

SFR's representatives are already castigating Free's decision to distribute dividends and to try to prolong the agreement instead of investing in its networks.

SFR and Bouygues Telecom have announced the suspension of the payment of dividends, but this is also in order to benefit from government aid linked to the short-time working of some of the staff.

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Source : Génération NT

The telecoms police officer has just sent an early formal notice to Orange, SFR, Bouygues Telecom and Iliad-Free regarding the "New Mobile Deal". Indeed, Arcep considers that the commitments made by operators under this agreement, dating from January 2018, are not progressing fast enough.

At the time, the State agreed to renew part of the frequencies granted to operators for ten years and free of charge. A "gift" with a counterpart, however: the operators had undertaken to cover the territory more, particularly in the famous "white areas".

By the end of 2020, they must have converted all their existing 2G and 3G sites to 4G and improve mobile coverage on transport routes (from 2018) and inside buildings (from 2019).

But a year and a half after the signing, the regulator would find that progress was insufficient. "The regulator has no confidence in the operators, he believes that this case is dragging on," explains a source familiar with the case.

If the targets were not met by the 2020 deadline, early warning would make it possible to initiate sanctions more quickly without wasting time.

Aware that operators have always had difficulty meeting their commitments, the government has organised progress reports on the progress of the work. This was obviously not enough.

However, in June 2018, the government published the first 485 sites on which operators had to install their 4G antennas. For its part, the Arcep had launched its quarterly dashboard. But several observers had already warned of the magnitude of the task. "The deadlines were super-short. We could legitimately be concerned," recalls one participant today.

Operators, on the other hand, deny any delay. "Operators are deploying on schedule. ...] We are on the ground every day to solve administrative and technical challenges with the support of communities and government services. Arcep is welcome in the territories and will thus become even more aware of the collective success underway to finally solve the problem of white areas," said Arthur Dreyfuss, President of the French Telecommunications Federation. Summer is therefore likely to be turbulent.

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Source : Les Echos