desox 0.5.3

(incomplete) MIFARE DESFire EV3 APDU bindings.
Documentation 
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// {{{ Copyright (c) Paul R. Tagliamonte <paultag@gmail.com>, 2026
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE. }}}

use super::KeyingState;
use crate::KeyId;

/// Active (authenticated) session between the DESFire Card and this library.
pub enum Session {
    /// Current session keying status for a DES session.
    Des {
        /// Key that we have authenticated with
        key_id: KeyId,

        /// Keying information (session key, initialization vector)
        keying: KeyingState<8, des::Des>,
    },

    /// Current session keying status for an AES-128 session.
    Aes {
        /// Key that we have authenticated with
        key_id: KeyId,

        /// Keying information (session key, initialization vector)
        keying: KeyingState<16, aes::Aes128>,
    },
}

impl Session {
    /// Return the current Key ID
    pub fn get_key_id(&self) -> KeyId {
        match self {
            Self::Des { key_id, keying: _ } => *key_id,
            Self::Aes { key_id, keying: _ } => *key_id,
        }
    }
}

// vim: foldmethod=marker