Tony Arcieri
f6915ce5df
YubiKey NEOs are legacy YubiKey devices, most of which contain unpatchable security vulnerabilities. They have smaller buffer sizes than YK4 and YK5, which necessitates a whole bunch of conditional gating and buffer size calculations. Getting rid of them simplifies this logic and allows us to assume consistent buffer sizes everywhere. We never tested on NEOs anyway, and looking at the deleted code it seems it may have been miscalculating the NEO's buffer size! If someone *really* wants to support NEOs, it shouldn't be that hard to restore, but the codebase is definitely cleaner without it.
175 lines
6.4 KiB
Rust
175 lines
6.4 KiB
Rust
//! [YubiKey] PIV: [Personal Identity Verification][PIV] support for
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//! [Yubico] devices using the Personal Computer/Smart Card ([PC/SC])
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//! interface as provided by the [`pcsc` crate].
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//!
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//! **PIV** is a [NIST] standard for both *signing* and *encryption*
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//! using SmartCards and SmartCard-based hardware tokens like YubiKeys.
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//!
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//! This library natively implements the protocol used to manage and
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//! utilize PIV encryption and signing keys which can be generated, imported,
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//! and stored on YubiKey devices.
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//!
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//! See [Yubico's guide to PIV-enabled YubiKeys][yk-guide] for more information
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//! on which devices support PIV and the available functionality.
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//!
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//! ## Minimum Supported Rust Version
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//!
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//! Rust 1.39+
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//!
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//! ## Supported YubiKeys
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//!
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//! - [YubiKey 4] series
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//! - [YubiKey 5] series
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//!
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//! NOTE: Nano and USB-C variants of the above are also supported.
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//! Pre-YK4 [YubiKey NEO] series is **NOT** supported.
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//!
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//! ## Supported Algorithms
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//!
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//! - **Authentication**: `3DES`
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//! - **Encryption**: `RSA1024`, `RSA2048`, `ECCP256`, `ECCP384`
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//! - **Signatures**:
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//! - RSASSA-PKCS#1v1.5: `RSA1024`, `RSA2048`
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//! - ECDSA: `ECCP256`, `ECCP384`
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//!
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//! NOTE: RSASSA-PSS signatures and RSA-OAEP encryption may be supportable (TBD)
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//!
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//! ## Status
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//!
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//! This is a work-in-progress effort, and while much of the library-level
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//! code from upstream [yubico-piv-tool] has been translated into Rust
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//! presenting a safe interface, much of it is still untested.
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//!
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//! Please see the [project's README.md for a complete status][status].
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//!
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//! ## History
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//!
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//! This library is a Rust translation of the [yubico-piv-tool] utility by
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//! Yubico, which was originally written in C. It was mechanically translated
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//! from C into Rust using [Corrode], and then subsequently heavily
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//! refactored into safer, more idiomatic Rust.
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//!
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//! For more information on [yubico-piv-tool] and background information on how
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//! the YubiKey implementation of PIV works in general, see the
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//! [Yubico PIV Tool Command Line Guide][piv-tool-guide].
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//!
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//! ## Security Warning
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//!
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//! No security audits of this crate have ever been performed. Presently it is in
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//! an experimental stage and may still contain high-severity issues.
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//!
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//! USE AT YOUR OWN RISK!
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//!
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//! ## Code of Conduct
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//!
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//! We abide by the [Contributor Covenant][cc-md] and ask that you do as well.
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//!
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//! For more information, please see [CODE_OF_CONDUCT.md][cc-md].
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//!
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//! ## License
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//!
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//! **yubikey-piv.rs** is a fork of and originally a mechanical translation from
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//! Yubico's [yubico-piv-tool], a C library/CLI program. The original library
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//! was licensed under a [2-Clause BSD License][BSDL], which this library inherits
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//! as a derived work.
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//!
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//! [YubiKey]: https://www.yubico.com/products/yubikey-hardware/
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//! [PIV]: https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-73-4.pdf
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//! [Yubico]: https://www.yubico.com/
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//! [PC/SC]: https://en.wikipedia.org/wiki/PC/SC
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//! [`pcsc` crate]: https://github.com/bluetech/pcsc-rust
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//! [NIST]: https://www.nist.gov/
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//! [yk-guide]: https://developers.yubico.com/PIV/Introduction/YubiKey_and_PIV.html
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//! [YubiKey NEO]: https://support.yubico.com/support/solutions/articles/15000006494-yubikey-neo
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//! [YubiKey 4]: https://support.yubico.com/support/solutions/articles/15000006486-yubikey-4
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//! [YubiKey 5]: https://www.yubico.com/products/yubikey-5-overview/
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//! [status]: https://github.com/tarcieri/yubikey-piv.rs#status
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//! [yubico-piv-tool]: https://github.com/Yubico/yubico-piv-tool/
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//! [Corrode]: https://github.com/jameysharp/corrode
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//! [piv-tool-guide]: https://www.yubico.com/wp-content/uploads/2016/05/Yubico_PIV_Tool_Command_Line_Guide_en.pdf
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//! [cc-web]: https://contributor-covenant.org/
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//! [cc-md]: https://github.com/tarcieri/yubikey-piv.rs/blob/develop/CODE_OF_CONDUCT.md
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//! [BSDL]: https://opensource.org/licenses/BSD-2-Clause
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// Adapted from yubico-piv-tool:
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// <https://github.com/Yubico/yubico-piv-tool/>
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//
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// Copyright (c) 2014-2016 Yubico AB
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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//
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#![doc(
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html_logo_url = "https://raw.githubusercontent.com/tarcieri/yubikey-piv.rs/develop/img/logo.png",
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html_root_url = "https://docs.rs/yubikey-piv/0.0.3"
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)]
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#![forbid(unsafe_code)]
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#![warn(
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missing_docs,
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rust_2018_idioms,
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trivial_casts,
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trivial_numeric_casts,
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unused_lifetimes,
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unused_qualifications
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)]
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mod apdu;
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#[cfg(feature = "untested")]
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pub mod cccid;
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pub mod certificate;
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#[cfg(feature = "untested")]
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pub mod chuid;
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#[cfg(feature = "untested")]
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pub mod config;
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pub mod consts;
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#[cfg(feature = "untested")]
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pub mod container;
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pub mod error;
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pub mod key;
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#[cfg(feature = "untested")]
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mod metadata;
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#[cfg(feature = "untested")]
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pub mod mgm;
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#[cfg(feature = "untested")]
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pub mod msroots;
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pub mod policy;
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pub mod readers;
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mod serialization;
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#[cfg(feature = "untested")]
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pub mod settings;
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mod transaction;
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pub mod yubikey;
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pub use self::{readers::Readers, yubikey::YubiKey};
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#[cfg(feature = "untested")]
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pub use self::{key::Key, mgm::MgmKey};
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/// Object identifiers
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pub type ObjectId = u32;
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/// Buffer type (self-zeroizing byte vector)
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pub(crate) type Buffer = zeroize::Zeroizing<Vec<u8>>;
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