In Re: Under Seal

Court of Appeals for the Fourth Circuit·Decided April 16, 2014·No. 13-4625·Published

Opinion

PUBLISHED

UNITED STATES COURT OF APPEALS FOR THE FOURTH CIRCUIT

No. 13-4625

In Re: UNDER SEAL ------------------------------ UNITED STATES OF AMERICA, Plaintiff – Appellee,

v.

LAVABIT, LLC.; LADAR LEVISON, Parties-in-Interest – Appellants.

-------------------------------

AMERICAN CIVIL LIBERTIES UNION; AMERICAN CIVIL LIBERTIES UNION OF VIRGINIA; EMPEOPLED, LLC.; ELECTRONIC FRONTIER FOUNDATION,

Amici Supporting Appellants.

No. 13-4626

In Re: GRAND JURY PROCEEDINGS ------------------------------ UNITED STATES OF AMERICA, Plaintiff – Appellee,

v.

LAVABIT, LLC.; LADAR LEVISON, Parties-in-Interest – Appellants.

------------------------------

AMERICAN CIVIL LIBERTIES UNION; AMERICAN CIVIL LIBERTIES UNION OF VIRGINIA; EMPEOPLED, LLC.; ELECTRONIC FRONTIER FOUNDATION,

Amici Supporting Appellants.

Appeals from the United States District Court for the Eastern District of Virginia, at Alexandria. Claude M. Hilton, Senior District Judge. (1:13−sw−00522−CMH−1; 1:13−dm−00022−CMH−1)

Argued: January 28, 2014 Decided: April 16, 2014

Before NIEMEYER, GREGORY, and AGEE, Circuit Judges.

Affirmed by published opinion. Judge Agee wrote the opinion, in which Judge Niemeyer and Judge Gregory joined.

ARGUED: Ian James Samuel, New York, New York, for Appellants. Andrew Peterson, OFFICE OF THE UNITED STATES ATTORNEY, Alexandria, Virginia, for Appellee. ON BRIEF: Jesse R. Binnall, BRONLEY & BINNALL, PLLC, Fairfax, Virginia; Marcia Hofmann, LAW OFFICE OF MARCIA HOFMANN, San Francisco, California; David Warrington, Laurin Mills, LECLAIRRYAN, Alexandria, Virginia, for Appellants. Mythili Raman, Acting Assistant Attorney General, Criminal Division, Nathan Judish, Josh Goldfoot, Benjamin Fitzpatrick, Brandon Van Grack, UNITED STATES DEPARTMENT OF JUSTICE, Washington, D.C.; Dana J. Boente, Acting United States Attorney, Michael Ben’Ary, James L. Trump, OFFICE OF THE UNITED STATES ATTORNEY, Alexandria, Virginia, for Appellee. Alexander A. Abdo, Brian M. Hauss, Catherine Crump, Nathan F. Wessler, Ben Wizner, AMERICAN CIVIL LIBERTIES UNION FOUNDATION, New York, New York; Rebecca K. Glenberg, AMERICAN CIVIL LIBERTIES UNION OF VIRGINIA FOUNDATION, INC., Richmond, Virginia, for Amici American Civil Liberties Union and ACLU of Virginia. Kurt Opsahl, Jennifer Lynch, Hanni Fakhoury, ELECTRONIC FRONTIER

FOUNDATION, San Francisco, California, for Amicus Electronic Frontier Foundation. Richard M. Martinez, Mahesha P. Subbaraman, ROBINS, KAPLAN, MILLER & CIRESI, L.L.P., Minneapolis, Minnesota, for Amicus Empeopled, LLC.

AGEE, Circuit Judge:

Lavabit LLC is a limited liability company that provided email service. Ladar Levison is the company’s sole and managing member. 1 In 2013, the United States sought to obtain certain information about a target 2 in a criminal investigation. To further that goal, the Government obtained court orders under both the Pen/Trap Statute, 18 U.S.C. §§ 3123-27, and the Stored Communications Act, 18 U.S.C. §§ 2701-12, requiring Lavabit to turn over particular information related to the target. When Lavabit and Levison failed to comply with those orders, the district court held them in contempt and imposed monetary sanctions. Lavabit and Levison now appeal the sanctions.

For the reasons below, we affirm the judgment of the district court.

1 The record does not reflect the state of Lavabit’s organization or registration to do business. Neither does the record contain documents that verify the ownership of Lavabit’s membership interests or the identity of its managing member. The parties and the district court assumed below that Lavabit and Levison were “[o]ne and the same.” (J.A. 115.) As no party has indicated otherwise, we will also assume that Levison owns all interests in Lavabit and is fully authorized to act in all matters on Lavabit’s behalf.

2 Because of the nature of the underlying criminal investigation, portions of the record, including the target’s identity, are sealed.

I.

A.

This case concerns the encryption processes that Lavabit used while providing its email service. Encryption describes the process through which readable data, often called “plaintext,” is converted into “ciphertext,” an unreadable jumble of letters and numbers. Decryption describes the reverse process of changing ciphertext back into plaintext. Both processes employ mathematical algorithms involving “keys,” which facilitate the change of plaintext into ciphertext and back again.

Lavabit employed two stages of encryption for its paid subscribers: storage encryption and transport encryption. Storage encryption protects emails and other data that rests on Lavabit’s servers. Theoretically, no person other than the email user could access the data once it was so encrypted. By using storage encryption, Lavabit held a unique market position in the email industry, as many providers do not encrypt stored data.

Although Lavabit’s use of storage encryption was novel, this case primarily concerns Lavabit’s second stage of encryption, transport encryption. This more common form of encryption protects data as it moves in transit between the client and the server, creating a protected transmission channel

for internet communications. Transport encryption protects not just email contents, but also usernames, passwords, and other sensitive information as it moves. Without this type of encryption, internet communications move exposed en route to their destination, allowing outsiders to “listen in.” Transport encryption also authenticates -- that is, it helps ensure that email clients and servers are who they say they are, which in turn prevents unauthorized parties from exploiting the data channel.

Like many online companies, Lavabit used an industry-

standard protocol called SSL (short for “Secure Sockets Layer”) to encrypt and decrypt its transmitted data. SSL relies on public-key or asymmetric encryption, in which two separate but related keys are used to encrypt and decrypt the protected data. One key is made public, while the other remains private. In Lavabit’s process, email users would have access to Lavabit’s public keys, but Lavabit would retain its protected, private keys. This technology relies on complex algorithms, but the basic idea is akin to a self-locking padlock: if Alice wants to send a secured box to Bob, she can lock the box with a padlock (the public key) and Bob will open it with his own key (the

private key). Anyone can lock the padlock, but only the key- holder can unlock it. 3 The security advantage that SSL offers disappears if a third party comes to possess the private key. For example, a third party holding a private key could read the encrypted communications tied to that key as they were transmitted. In some circumstances, a third party might also use the key to decrypt past communications (although some available technologies can thwart that ability). And, with the private key in hand, the third party could impersonate the server and launch a man-in-the-middle attack.

When a private key becomes anything less than private, more than one user may be compromised. Like some other email providers, Lavabit used a single set of SSL keys for all its various subscribers for technological and financial reasons. Lavabit in particular employed only five key-pairs, one for each

Free access — add to your briefcase to read the full text and ask questions with AI

In Re: Under Seal, (4th Cir. 2014).

In Re: Under Seal (In Re: Under Seal) — published by Counsel Stack Legal Research, free access to 12M+ legal documents.

Related

In Re Gates
600 F.3d 333 (Fourth Circuit, 2010)
Clark v. Scott
70 F.3d 386 (Fifth Circuit, 1995)
United States v. Atkinson
297 U.S. 157 (Supreme Court, 1936)
Ashwander v. Tennessee Valley Authority
297 U.S. 288 (Supreme Court, 1936)
Singleton v. Wulff
428 U.S. 106 (Supreme Court, 1976)
Yee v. City of Escondido
503 U.S. 519 (Supreme Court, 1992)
McNeil v. United States
508 U.S. 106 (Supreme Court, 1993)
Nelson v. Adams USA, Inc.
529 U.S. 460 (Supreme Court, 2000)
Exxon Shipping Co. v. Baker
128 S. Ct. 2605 (Supreme Court, 2008)
Norfolk Southern Railway Co. v. City of Alexandria
608 F.3d 150 (Fourth Circuit, 2010)
Jackson v. Parker
627 F.3d 634 (Seventh Circuit, 2010)
Kingman Park Civic v. Williams, Anthony A.
348 F.3d 1033 (D.C. Circuit, 2003)
Richison v. Ernest Group, Inc.
634 F.3d 1123 (Tenth Circuit, 2011)
United States v. Byers
649 F.3d 197 (Fourth Circuit, 2011)
In Re Leonard L. Bianchi
542 F.2d 98 (First Circuit, 1976)