Davidson & Assoc. v. Internet Gateway

United States Court of Appeals
FOR THE EIGHTH CIRCUIT
___________

No. 04-3654
___________

Davidson & Associates, doing *
business as Blizzard Entertainment, *
Inc.; Vivendi Universal, Inc., *
*
Plaintiffs - Appellees, *
* Appeal from the United States
v. * District Court for the
* Eastern District of Missouri.
Tim Jung, an individual; Rob *
Crittenden, *
*
Defendants - Appellants, *
*
Intellectual Property Law Professors, *
*
Amicus Curiae, *
*
Internet Gateway, *
*
Defendants - Appellants, *
*
____________________ *
*
Computer & Communications *
Industry Association; Open Source & *
Industry Alliance; Consumers Union; *
Public Knowledge; Intellectual *
Property Law Professors; The Institute *
of Electrical and Electronics *
Engineers, Inc., *
*
 Amici on Behalf *
of Appellants, *
*
Entertainment Software Association; *
Recording Industry Association of *
America; Motion Picture Association *
of America, Incorporated; Data Tree, *
LLC; First American Real Estate *
Solutions, LLC; Reed Elsevier, Inc. *
Twenty-Second Century Foundation, *
Inc.; Software & Information Industry *
Association, *
*
Amici on Behalf *
of Appellees. *
___________

Submitted: June 20, 2005
Filed: September 1, 2005
___________

Before MURPHY, BYE, and SMITH, Circuit Judges.
___________

SMITH, Circuit Judge.

Davidson & Associates, Inc. d/b/a Blizzard Entertainment ("Blizzard") and
Vivendi Universal Games, Inc. ("Vivendi"), owner of copyrights in computer game
software and online gaming service software sued Ross Combs ("Combs"), Rob
Crittenden ("Crittenden"), Jim Jung ("Jung"), and Internet Gateway, Inc. ("Internet
Gateway") (collectively referred to as "Appellants"), for breach of contract,
circumvention of copyright protection system, and trafficking in circumvention
technology. Both parties moved for summary judgment. The district court granted
summary judgment in favor of Blizzard and Vivendi, and determined that: (1)
Blizzard's software end-user license and terms of usage agreements were enforceable

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contracts; (2) Appellants waived any "fair use" defense; (3) the agreements did not
constitute misuse of copyright; and (4) Appellants violated the anti-circumvention
and anti-trafficking provisions of the Digital Millennium Copyright Act ("DMCA").
We affirm.

I. Background
A. Factual Background
Blizzard, a California corporation and subsidiary of Vivendi, creates and sells
software games for personal computers. This appeal concerns the particular Blizzard
games "StarCraft," "StarCraft: Brood War," "WarCraft II: Battle.net Edition,"
"Diablo," and "Diablo II: Lord of Destruction." Combs and Crittenden are computer
programmers, Jung is a systems administrator, and Internet Gateway is an Internet
service provider based in St. Peters, Missouri. Jung is also the president, co-owner,
and day-to-day operator of Internet Gateway.

In January 1997, Blizzard officially launched "Battle.net," a 24-hour online-
gaming service available exclusively to purchasers of its computer games. The
Battle.net service has nearly 12 million active users who spend more that 2.1 million
hours online per day. Blizzard holds valid copyright registrations covering Battle.net
and each of its computer games at issue in this litigation. Battle.net is a free service
that allows owners of Blizzard games to play each other on their personal computers
via the Internet. Battle.net mode allows users to create and join multi-player games
that can be accessed across the Internet, to chat with other potential players, to record
wins and losses and save advancements in an individual password-protected game
account, and to participate with others in tournament play featuring elimination
rounds.1 Players can set up private "chat channels" and private games on Battle.net

1
In addition to multi-player play over the Internet via Battle.net mode, the
various games have the capacity for and permit non-Internet multi-player gaming for
a limited number of players who connect to each other via a local area computer
network ("LAN"), such as a home network, via modems connected to telephone lines,

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to allow players to determine with whom they wish to interact online. These
Battle.net mode features are only accessible from within the games.

Like most computer software, Blizzard's games can be easily copied and
distributed over the Internet. Blizzard has taken steps to avoid piracy by designing
Battle.net to restrict access and use of the Battle.net mode feature of the game. Each
time a user logs onto Battle.net, a Battle.net server examines the user's version of the
game software. If a Blizzard game does not have the latest software upgrades and
fixes, the Battle.net service updates the customer's game before allowing the game to
play in Battle.net mode.

With the exception of "Diablo," each authorized version of a Blizzard game
comes with a "CD Key." A CD Key is a unique sequence of alphanumeric characters
printed on a sticker attached to the case in which the CD-ROM was packaged.2 To log
on to Battle.net and access Battle.net mode, the game initiates an authentication
sequence or "secret handshake" between the game and the Battle.net server.3 In order

or by directly connecting two computers together with cables. The features and
functions of Battle.net mode, however, cannot be accessed when players are
connected through those means.
2
The user of the game must input the CD Key into his or her computer when
installing the game, and it is subsequently stored on the computer for use in logging
on to Battle.net. This is part of an effort to prohibit use of unauthorized or pirated
copies of Blizzard games with Battle.net.
3
First, the game and the Battle.net server exchange random numbers (one
provided by the game and one provided by the server). The game then takes the
random numbers, as well as information from the CD Key, and calculates an
encrypted alphanumeric sequence that is sent to the Battle.net server. The game
performs this encryption to prevent individuals from stealing the game's CD Key
when it is transmitted over the Internet. The Battle.net server receives the
alphanumeric sequence sent by the game, along with other information sent by the
game, and uses this data to determine whether the CD Key information sent by the

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to play the Blizzard game contained on a CD-ROM, a user must first install the game
onto a computer and agree to the terms of the End User Licence Agreement
( " E U L A " ) 4 a n d T e r ms o f U s e ( " T O U " ) , 5 b o t h o f w h i c h

game is valid. If the CD Key information is valid, the Battle.net server will determine
whether the same CD Key is already being used by another game that is currently
logged on to that Battle.net server gateway, which includes the eastern and western
United States, Europe, and Asia. If the CD Key is both valid and not currently being
used by other players on the same Battle.net gateway, the Battle.net server sends a
signal to the game that allows the game to enter the Battle.net mode and use the
Battle.net gaming services. The Blizzard game waits for this signal before entering
Battle.net mode. Battle.net uses an encryption algorithm for this process based on a
common encryption algorithm. The standard version of this algorithm was released
by the United States government.
4
The EULA contains the following language:

YOU SHOULD CAREFULLY READ THE FOLLOWING END USER
LICENSE AGREEMENT BEFORE INSTALLING THIS SOFTWARE
PROGRAM. BY INSTALLING, COPYING, OR OTHERWISE USING
THE SOFTWARE PROGRAM YOU AGREE TO BE BOUND BY
THE TERMS OF THIS AGREEMENT. IF YOU DO NOT AGREE TO
THE TERMS OF THIS AGREEMENT, PROMPTLY RETURN THE
UNUSED SOFTWARE PROGRAM TO THE PLACE OF PURCHASE
OR CONTACT BLIZZARD ENTERTAINMENT CUSTOMER
SERVICE . . . FOR A FULL REFUND OF THE PURCHASE PRICE
WITHIN THIRTY DAYS OF THE ORIGINAL PURCHASE.

This software program (the "Program"), any printed materials, any on-
line or electronic documentation, and any and all copies and derivative
works of such software program and materials are the copyrighted work
of Blizzard Entertainment.
....
Subject to that Grant of Licence hereinabove, you may not, in whole or
in part, copy, photocopy, reproduce, translate, reverse engineer, derive
source code, modify, disassemble, decompile, create derivative works

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 based on the Program, or remove any proprietary notices or labels on the
Program without the prior consent, in writing, of Blizzard.

(Emphasis added.)
5
First-time users of Battle.net are shown the terms of the TOU after a user has
installed a Blizzard game and logs onto Battle.net for the first time to play with a
purchased Blizzard game product. The TOU states:

Battle.net(R) ("Battle.net") is the copyrighted work of Blizzard
Entertainment(R) ("Blizzard") or its suppliers. All use of Battle.net is
governed by the terms of use provided below ("Battle.net Terms of
Use"). Battle.net is provided "as is" solely for use by end users of
Blizzard software products according to the terms of conditions
contained herein. Any use of Battle.net not in accordance with the terms
of the Battle.net Terms of Use is expressly prohibited.
....
Blizzard hereby grants, and by using Battle.net you thereby accept, a
limited, personal, non-exclusive license and right to use Battle.net using
either a home, work, or portable computer.
....
You are entitled to use Battle.net for your own personal use, but you
shall not be entitled to[:]
(i) sell or grant a security interest in or transfer reproductions of
Battle.net to other parties in any way, nor to rent, lease, or license
Battle.net to others without the prior written consent of Blizzard;
(ii) copy, photocopy, reproduce, translate, reverse engineer, modify,
disassemble, or de-compile [sic] in whole or in part any Battle.net
software;
(iii) create derivative works based on Battle.net;
(iv) host or provide matchmaking services for any Blizzard software
programs or emulate or redirect the communication protocols used by
Blizzard as part of Battle.net, through protocol emulation, runneling,
modifying, or adding components to the Program, use of a utility
program, or any other technique now known or hereafter developed for

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prohibit reverse engineering. At the end of both the EULA and TOU, Blizzard
includes a button with the text, "I Agree" in it, which the user must select in order to
proceed with the installation. Users are also required to enter a name and the CD Key
during installation of Battle.net and Blizzard games.

The outside packaging of all Blizzard games, except for Diablo, contains a
statement that use of the game is subject to the EULA and that use of Battle.net is
subject to the terms of the TOU. The terms of neither the EULA nor the TOU appear
on the outside packaging. If the user does not agree to these terms, the game may be
returned for a full refund of the purchase price within thirty (30) days of the original
purchase. Combs, Crittenden, and Jung installed Blizzard games and agreed to the
terms of the EULA. Crittenden and Jung logged onto Battle.net and agreed to the
TOU.

any purpose, including, but not limited to, network play over the
Internet, network play utilizing commercial or non-commercial gaming
networks, or as part of content aggregation networks without the prior
written consent of Blizzard or exploit Battle.net or any of its parts for
any commercial purpose, including but not limited to, use at a location
such as a cyber café, arcade, or other location where users are charged
a fee, whether hourly or otherwise to use Battle.net;
(v) use any third-party software to modify Battle.net to change game
play, including, but not limited to cheats and/or hacks;
(vi) use Blizzard's intellectual property rights contained in Battle.net to
create or provide any other means through which Blizzard entertainment
software products, including, but not limited to, StarCraft, StarCraft:
Brood War, Diablo, Diablo II, Warcraft: Orcs & Humans, Warcraft II:
Tides of Darkness, Warcraft II: Beyond the Dark Portal, Warcraft II:
Battle.net Edition, and Warcraft II may be played by others, including,
but not limited to, server emulators.

(Emphasis added.)

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 The users of Battle.net have occasionally experienced difficulties with the
service.6 To address their frustrations with Battle.net, a group of non-profit volunteer
game hobbyists, programmers, and other individuals formed a group called the "bnetd
project." The bnetd project developed a program called the "bnetd.org server" that
emulates the Battle.net service and permits users to play online without use of
Battle.net. The bnetd project is a volunteer effort and the project has always offered
the bnetd program for free to anyone. Combs, Crittenden, and Jung were lead
developers for the bnetd project.

The bnetd project was organized and managed over the Internet through a
website, www.bnetd.org, that was made available to the public through equipment
provided by Internet Gateway. The bnetd.org emulator provides a server that allows
gamers unable or unwilling to connect to Battle.net to experience the multi-player
features of Blizzard's games. The bnetd.org emulator also provides matchmaking
services for users of Blizzard games who want to play those games in a multi-player
environment without using Battle.net. Bnetd.org attempted to mirror all of the user-
visible features of Battle.net, including online discussion forums and information
about the bnetd project, as well as access to the program's computer code for others
to copy and modify.

To serve as a functional alternative to Battle.net, bnetd.org had to be
compatible with Blizzard's software. In particular, compatibility required that
bnetd.org speak the same protocol language that the Battle.net speaks. By speaking
the same protocol language, the bnetd programs would be interoperable with Blizzard
games. Once game play starts, a user perceives no difference between Battle.net and
the bnetd.org.

6
Blizzard has also received complaints about user profanity and users who win
games by modifying Blizzard's software ("client hacks"). In response, Blizzard has
added additional server capacity, banned cheaters, and provided for private channels
and games.

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 By necessity, Appellants used reverse engineering to learn Blizzard's protocol
language and to ensure that bnetd.org worked with Blizzard games. Combs used
reverse engineering to develop the bnetd.org server, including a program called
"tcpdump" to log communications between Blizzard games and the Battle.net server.
Crittenden used reverse engineering to develop the bnetd.org server, including using
a program called "Nextray." Crittenden also used a program called "ripper" to take
Blizzard client files that were compiled together in one file and break them into their
component parts. Crittenden used the ripper program to determine how Blizzard
games displayed ad banners so that bnetd.org could display ad banners to users in the
format that Blizzard uses on the Battle.net service. Combs tried to disassemble a
Blizzard game to figure out how to implement a feature that allowed bnetd.org to
protect the password that a user enters when creating an account in Battle.net mode.
Crittenden made an unauthorized copy of a Blizzard game in order to test the
interoperability of the bnetd.org server with multiple games.

Blizzard designed its games to connect only to Battle.net servers. To enable a
Blizzard game to connect to a bnetd.org server instead of a Battle.net server, bnetd
had to modify the computer file that contained the Internet address of the Battle.net
servers. As part of the bnetd project, Combs participated in the development of a
utility program called "BNS" to allow Blizzard games to connect to bnetd.org servers
more easily. Through the BNS program, the game sends the bnetd.org server
information about its CD Key. An individual can thus play one of the Blizzard games
at issue over the Internet via bnetd.org rather than Battle.net. According to Blizzard,
the EULAs and TOUs prohibit this activity.

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 Bnetd.org has important operational differences from Battle.net.7 When
bnetd.org receives the CD Key information, unlike Battle.net, it does not determine
whether the CD Key is valid or currently in use by another player. The bnetd.org
server computer code always sends the game an "okay" reply regardless of whether
the CD Key is valid or currently in use by another player. The bnetd.org emulator
always allows the Blizzard games to access Battle.net mode features even if the user
does not have a valid or unique CD Key. Blizzard did not disclose the methods it used
to generate CD Keys or to confirm the validity of CD Keys.

Combs, Crittenden, and Jung used Blizzard games to log into bnetd.org.
Crittenden was aware that unauthorized versions of Blizzard games were played on
bnetd.org. Jung knew that the bnetd.org emulator did not require that Blizzard games
provide valid CD Keys. Combs suspected that the bnetd.org emulator would not
know the difference between a real game and a pirated game. Combs and Crittenden
either sent portions of the bnetd software to Jung to place on the www.bnetd.org
website for download or put the software on the website themselves. Combs made the
bnetd software available on his website located at www.cs.nmsu.edu/~rcombs/sc/.
Also distributed was the BNS utility program which allowed Blizzard games to
connect to bnetd.org. The source code was made available as an "open source"
application, meaning that others were free to copy the source code and distribute it
with or without modifications. Because the bnetd.org source code was freely
available, others developed additional Battle.net emulators based on the bnetd.org

7
The bnetd.org server program is highly configurable, which means that much
of the operation of the server is under the control of the administrator running the
server. The bnetd.org server allows users to become server administrators and not just
players on another server, giving them the ability to allow or deny access to various
features of bnetd.org or to modify the computer code of the bnetd.org server. This
allows the administrator of bnetd.org to create a gaming environment with different
options from those presented to Battle.net users. In contrast, Battle.net is operated
solely by Blizzard.

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source code. Binary versions of the bnetd.org were distributed which made it more
convenient for users to set up and access the emulator program. Internet Gateway has
donated space on its computers for use by the bnetd project. Internet Gateway also
hosted a bnetd.org server that anyone on the Internet could access and use to play
Blizzard games in Battle.net mode.

B. Procedural Background
Blizzard and Vivendi brought suit in the United States District Court for the
Eastern District of Missouri. The second amended complaint alleged copyright
infringement in violation of 17 U.S.C. § 501; circumvention of copyright protection
systems and trafficking in circumvention technology in violation of 17 U.S.C. §
1201(a); federal trademark infringement in violation of 15 U.S.C. § 1114(1); federal
false designation of origin in violation of 15 U.S.C. § 1125(c); common law
trademark infringement and unfair competition claims; and breach of the EULA and
TOU. Appellants counterclaimed, requesting declaratory relief as to non-infringement
under 17 U.S.C. § 501, non-circumvention of copyright under 17 U.S.C. § 1201(a),
the unconstitutionality of 17 U.S.C. § 1201(a), and unenforceability of Blizzard's
EULA and TOU.

The district court8 entered a consent decree and permanent injunction which
constituted the full and complete relief on the claims of copyright infringement,
federal trademark infringement, federal false designation, and common-law trademark
and infringement. The consent decree also provided complete relief on the
counterclaim for declaratory judgment for non-infringement and unconstitutionality
of 17 U.S.C. § 1201(a). The consent decree resolved all claims except for the claims
of circumvention of copyright protection systems and trafficking in circumvention
technology under 17 U.S.C. § 1201(a), breach of the EULA and TOU, and the

8
The Honorable Charles A. Shaw, United States District Judge for the Eastern
District of Missouri.

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counterclaims for declaratory relief for non-circumvention and unenforceability of the
EULA and TOU.

Both sides motioned for summary judgment. The district court granted
summary judgment in favor of Blizzard and Vivendi and determined that: (1)
Blizzard's software end-user license and terms of usage agreements were enforceable
contracts; (2) Appellants waived any "fair use" defense; (3) the agreements did not
constitute misuse of copyright; and (4) Appellants violated the DMCA's anti-
circumvention and anti-trafficking provisions of the DMCA. Appellants brought this
appeal, disputing violations of the DMCA, and now argue that the state breach-of-
contract claims were preempted by federal copyright law.

II. Discussion
We review the grant or denial of summary judgment de novo, applying the
same standard as the district court and may affirm on grounds supported by the
record. Bechtold v. City of Rosemount, 104 F.3d 1062, 1068 (8th Cir. 1997).
Summary judgment is appropriate where the record shows that no genuine issue as
to any material fact exists and that the moving party is entitled to judgment as a
matter of law. Dorsey v. Pinnacle Automation Co., 278 F.3d 830, 834 (8th Cir. 2002).
A plaintiff may not merely point to unsupported self-serving allegations, but must
substantiate allegations with sufficient probative evidence that would permit a finding
in the plaintiff's favor. Wilson v. Int'l Bus. Mach. Corp., 62 F.3d 237, 241 (8th Cir.
1995). "The mere existence of a scintilla of evidence in support of the plaintiff's
position will be insufficient; there must be evidence on which the jury could
reasonably find for the plaintiff." Anderson v. Liberty Lobby, Inc., 477 U.S. 242, 252
(1986). "Only disputes over facts that might affect the outcome of the suit under the
governing law will properly preclude the entry of summary judgment." Id. at 248.

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 A. Preemption
The Copyright Act provides the exclusive source of protection for "all legal
and equitable rights that are equivalent to any of the exclusive rights within the
general scope of copyright as specified by . . . [§] 106" of the Copyright Act. See 17
U.S.C. § 301(a). The Copyright Act preempts state laws that attempt to protect rights
exclusively protected by federal law. See Nat'l Car Rental Sys., Inc. v. Computer
Assocs. Intern., Inc., 991 F.2d 426, 428 (8th Cir. 1993). Conversely, the Copyright
Act does not preempt state law from enforcing non-equivalent legal or equitable
rights. Id. A state cause of action is statutorily or expressly preempted if: (1) the work
at issue is within the subject matter of copyright as defined in §§ 102 and 103 of the
Copyright Act, and (2) the state-law-created right is equivalent to any of the exclusive
rights within the general scope of copyright as specified in § 106. Id. at 428–29
(citing Harper and Row Pub., Inc. v. Nation Enter., 723 F.2d 195, 200 (2d Cir.
1983)). Express preemption is no longer at issue in this case.9

This case concerns conflict preemption. Conflict preemption applies when
there is no express preemption but (1) it is impossible to comply with both the state
and federal law or when (2) the state law stands as an obstacle to the accomplishment
and execution of the full purposes and objectives of Congress. Pacific Gas & Elec.
Co. v. Energy Res. Conservation and Dev. Comm'n, 461 U.S. 190, 204 (1983); Jones
v. Rath Packing Co., 430 U.S. 519, 525 (1977). Appellants, relying upon Vault v.
Quaid Software Ltd., 847 F.2d 255, 268–70 (5th Cir. 1988), argue that the federal
Copyright Act preempts Blizzard's state law breach-of-contract claims. We disagree.

9
In their briefs, Appellants argued that the TOU and EULA were statutorily
preempted by the Copyright Act and/or impermissibly conflicted with the fair use
defense contained in the Copyright Act. However, at oral argument, Appellants
conceded that the only remaining issue was whether the breach of contract claims
conflicted with the interoperability exception contained in the DMCA.

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 In Vault, plaintiffs challenged the Louisiana Software License Enforcement
Act, which permitted a software producer to impose contractual terms upon software
purchasers provided that the terms were set forth in a license agreement comporting
with the statute. Id. at 268."Enforceable terms [under the Louisiana statute] include
the prohibition of: (1) any copying of the program for any purpose; and (2) modifying
and/or adapting the program in any way, including adaptation by reverse engineering,
decompilation or disassembly." Id. at 269 (citation omitted). The Louisiana statute
defined reverse engineering, decompiling or disassembling as "any process by which
computer software is converted from one form to another form which is more readily
understandable to human beings, including without limitation any decoding or
decrypting of any computer program which has been encoded or encrypted in any
manner." Id. (citation omitted). The Fifth Circuit held that the Louisiana statute
conflicted with the rights of computer program owners under the Copyright Act,
specifically 17 U.S.C. § 117, which permits a computer program owner to make an
adaptation of a program provided that the adaption is either created as an essential
step in the utilization of the computer program in conjunction with a machine or is
for archival purpose only. Id. at 270.

Unlike in Vault, the state law at issue here neither conflicts with the
interoperability exception under 17 U.S.C. § 1201(f) nor restricts rights given under
federal law. Appellants contractually accepted restrictions on their ability to reverse
engineer by their agreement to the terms of the TOU and EULA. "[P]rivate parties are
free to contractually forego the limited ability to reverse engineer a software product
under the exemptions of the Copyright Act[,]" Bowers v. Baystate Techs, Inc., 320
F.3d 1317, 1325–26 (Fed. Cir. 2003), and "a state can permit parties to contract away
a fair use defense or to agree not to engage in uses of copyrighted material that are
permitted by the copyright law if the contract is freely negotiated." Id. at 1337 (Dyk,
J., dissenting). See also Nat'l Car Rental Sys., Inc., 991 F.2d at 434 (holding that the
Copyright Act does not preempt a breach of contract action based on prohibited use
of software contained in a license agreement). While Bowers and Nat'l Car Rental

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were express preemption cases rather than conflict preemption, their reasoning
applies here with equal force. By signing the TOUs and EULAs, Appellants expressly
relinquished their rights to reverse engineer. Summary judgment on this issue was
properly granted in favor of Blizzard and Vivendi.

B. DMCA Claims and Interoperability Exception
Congress enacted the DMCA in 1998 to implement the World Intellectual
Property Organization Copyright Treaty ("WIPO Treaty"). WIPO requires contracting
nations to "provide adequate legal protection and effective legal remedies against the
circumvention of effective technological measures that are used by authors in
connection with the exercise of their rights under this Treaty or the Berne Convention
and that restrict acts, in respect of their works, which are not authorized by the
authors concerned or permitted by law." WIPO Treaty, Apr. 12, 1997, art. 11, S.
Treaty Doc. No. 105-17 (1997), available at 1997 WL 447232.10 The DMCA contains
three provisions targeted at the circumvention of technological protections.

The first is § 1201(a)(1), the anti-circumvention provision. This provision
prohibits a person from "circumvent[ing] a technological measure that effectively
controls access to a work protected under [Title 17, governing copyright]." The

10
Even before the treaty, Congress considered the problems posed by copyright
infringement in the digital age. Hearings on the topic have spanned several years. See,
e.g., WIPO Copyright Treaties Implementation Act and Online Copyright Liability
Limitation Act: Hearing on H.R. 2281 and H.R. 2280 Before the Subcomm. on Courts
and Intellectual Property of the House Comm. on the Judiciary, 105th Cong. (1997);
NII Copyright Protection Act of 1995: Hearings on H.R. 2441 Before the Subcomm.
on Courts and Intellectual Property of the House Comm. on the Judiciary, 104th
Cong. (1996); NII Copyright Protection Act of 1995: Joint Hearing on H.R. 2441 and
S. 1284 Before the Subcomm. on Courts and Intellectual Property of the House
Comm. on the Judiciary and the Senate Comm. on the Judiciary, 104th Cong. (1995);
H.R.Rep. No. 105-551 (1998); S.Rep. No. 105-190 (1998). This legislative effort
resulted in the DMCA.

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Librarian of Congress is required to promulgate regulations every three years
exempting from this subsection individuals who would otherwise be "adversely
affected" in "their ability to make noninfringing uses." 17 U.S.C. §
1201(a)(1)(B)–(E). Section 1201(a)(1) differs from the second and third provisions
in that it targets the use of a circumvention technology, not the trafficking in such a
technology.

The second and third provisions are §§ 1201(a)(2) and 1201(b)(1), the "anti-
trafficking provisions." These sections are similar, except that § 1201(a)(2) covers
those who traffic in technology that can circumvent "a technological measure that
effectively controls access to a work protected under" Title 17, whereas § 1201(b)(1)
covers those who traffic in technology that can circumvent "protection afforded by
a technological measure that effectively protects a right of a copyright owner under"
Title 17. 17 U.S.C. §§ 1201(a)(2) & (b)(1). (Emphases added.) In other words,
although both sections prohibit trafficking in a circumvention technology, the focus
of § 1201(a)(2) is circumvention of technologies designed to prevent access to a
work, and the focus of § 1201(b)(1) is circumvention of technologies designed to
permit access to a work but prevent copying of the work or some other act that
infringes a copyright. See S.Rep. No. 105-190, at 11-12 (1998).

The district court determined that Appellants's reverse engineering violated §
1201(a)(1) as well as § 1201(a)(2). We agree.

1. Anti-Circumvention Violation
Section 1201(a)(1) provides that "[n]o person shall circumvent a technological
measure that effectively controls access to a work protected under this title." The term
"circumvent a technological measure" "means to descramble a scrambled work, to
decrypt an encrypted work, or otherwise to avoid, bypass, remove, deactivate, or
impair a technological measure, without the authority of the copyright owner." 17
U.S.C. § 1201(3)(A). "Effectively controls access to a work" means that the measure,

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in the ordinary course of its operation, requires the application of information, or a
process or a treatment, with the authority of the copyright owner, to gain access to the
work. 17 U.S.C. § 1201(3)(B).

Blizzard games, through Battle.net, employed a technological measure, a
software "secret handshake" (CD key), to control access to its copyrighted games.
The bnetd.org emulator developed by Appellants allowed the Blizzard game to access
Battle.net mode features without a valid or unique CD key. As a result, unauthorized
copies of the Blizzard games were played on bnetd.org servers. After Appellants
distributed the bnetd program, others developed additional Battle.net emulators based
on the bnetd source code. Appellants's distribution of binary versions of the bnetd
program facilitated set up and access to the emulator program.

Relying on Lexmark Int'l, Inc. v. Static Control Components, Inc., 387 F.3d 522
(6th Cir. 2004), Appellants argue that Battle.net mode is a strictly functional process
that lacks creative expression, and thus DMCA protections do not apply. Lexmark
Int'l, Inc., concerned two computer programs: the first was known as the "Toner
Loading Program" and the second was known as the "Printer Engine Program." Id.
at 528. DMCA anti-circumvention claims were brought after Lexmark's
authentication sequence contained in its printer cartridges were allegedly
circumvented. Id. at 528–29. The district court in that case held that Lexmark's
authentication sequence effectively controlled access to the programs because it
controlled the consumers' ability to make use of those programs. Id. at 546. The Sixth
Circuit reversed, holding that it was not Lexmark's authentication sequence that
controlled access to the programs, but the purchase of a Lexmark printer that allowed
access to the program. Id. "No security device, in other words, protects access to the
. . . program and no security device accordingly must be circumvented to obtain
access to that program code." Id. at 547.

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 Here, Battle.net's control measure was not freely available. Appellants could
not have obtained a copy of Battle.net or made use of the literal elements of Battle.net
mode without acts of reverse engineering, which allowed for a circumvention of
Battle.net and Battle.net mode. Unlike in Lexmark Int'l, Inc., Battle.net mode codes
were not accessible by simply purchasing a Blizzard game or logging onto Battle.net.,
nor could data from the program be translated into readable source code after which
copies were freely available without some type of circumvention. Appellants misread
Lexmark Int'l, Inc. and we are unpersuaded that summary judgment on the anti-
circumvention violations was improperly granted in favor of Blizzard and Vivendi.

2. Anti-trafficking Violations
Section 1201(a)(2) provides that:

No person shall manufacture, import, offer to the public, provide, or
otherwise traffic in any technology, product, service, device, component,
or part thereof, that . . . is primarily designed or produced for the
purpose of circumventing a technological measure that effectively
controls access to a work protected under this title; . . . has only limited
commercially significant purpose or use other than to circumvent a
technological measure that effectively controls access to a work
protected under this title; or . . . is marketed by that person or another
acting in concert with that person with that person's knowledge for use
in circumventing a technological measure that effectively controls
access to a work protected under this title.

17 U.S.C. § 1201(a)(2). The bnetd.org emulator had limited commercial purpose
because its sole purpose was to avoid the limitations of Battle.net. There is no
genuine issue of material fact that Appellants designed and developed the bnetd.org
server and emulator for the purpose of circumventing Blizzard's technological
measures controlling access to Battle.net and the Blizzard games. Summary judgment

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was properly granted in favor of Blizzard and Vivendi on the anti-trafficking
violations.

3. Interoperability Exception
The DMCA contains several exceptions, including one for individuals using
circumvention technology "for the sole purpose" of trying to achieve
"interoperability" of computer programs through reverse engineering. See 17 U.S.C.
§ 1201(f). Subsection (f)(4) defines interoperability as "the ability of computer
programs to exchange information, and such programs mutually to use the
information which has been exchanged." 17 U.S.C. § 1201(f)(4). Appellants argue
that the interoperability exception applies to any alleged infringement of Blizzard
games and Battle.net. To successfully prove the interoperability defense under §
1201(f), Appellants must show: (1) they lawfully obtained the right to use a copy of
a computer program; (2) the information gathered as a result of the reverse
engineering was not previously readily available to the person engaging in the
circumvention; (3) the sole purpose of the reverse engineering was to identify and
analyze those elements of the program that were necessary to achieve interoperability
of an independently created computer program with other programs; and (4) the
alleged circumvention did not constitute infringement. See 17 U.S.C. § 1201(f).

Appellants's circumvention in this case constitutes infringement. As detailed
earlier, Blizzard's secret handshake between Blizzard games and Battle.net effectively
controlled access to Battle.net mode within its games. The purpose of the bnetd.org
project was to provide matchmaking services for users of Blizzard games who wanted
to play in a multi-player environment without using Battle.net. The bnetd.org
emulator enabled users of Blizzard games to access Battle.net mode features without
a valid or unique CD key to enter Battle.net. The bnetd.org emulator did not
determine whether the CD key was valid or currently in use by another player. As a
result, unauthorized copies of the Blizzard games were freely played on bnetd.org
servers. Appellants failed to establish a genuine issue of material fact as to the

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applicability of the interoperability exception. The district court properly granted
summary judgment in favor of Blizzard and Vivendi on the interoperability exception.

Summary judgment in favor of Blizzard and Vivendi is affirmed.
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