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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
<herd>no-herd</herd>
<maintainer>
<email>taviso@gentoo.org</email>
<name>Tavis Ormandy</name>
</maintainer>
<longdescription>
From RFC2289:
One form of attack on networked computing systems is eavesdropping on network connections to obtain authentication information such as the login IDs and passwords of legitimate users. Once this information is captured, it can be used at a later time to gain access to the system. One-time password systems are designed to counter this type of attack, called a "replay attack."
The authentication system described in this document uses a secret pass-phrase to generate a sequence of one-time (single use) passwords. With this system, the user's secret pass-phrase never needs to cross the network at any time such as during authentication or during pass-phrase changes. Thus, it is not vulnerable to replay attacks. Added security is provided by the property that no secret information need be stored on any system, including the server being protected.
The OTP system protects against external passive attacks against the authentication subsystem. It does not prevent a network eavesdropper from gaining access to private information and does not provide protection against either "social engineering" or active attacks.
</longdescription>
</pkgmetadata>
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