logo
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144

//! Security Key (FIDO/U2F) private keys as described in [PROTOCOL.u2f].
//!
//! [PROTOCOL.u2f]: https://cvsweb.openbsd.org/src/usr.bin/ssh/PROTOCOL.u2f?annotate=HEAD

use crate::{
    checked::CheckedSum, decode::Decode, encode::Encode, public, reader::Reader, writer::Writer,
    Result,
};
use alloc::vec::Vec;

/// Security Key (FIDO/U2F) ECDSA/NIST P-256 private key as specified in
/// [PROTOCOL.u2f](https://cvsweb.openbsd.org/src/usr.bin/ssh/PROTOCOL.u2f?annotate=HEAD).
#[cfg(all(feature = "alloc", feature = "ecdsa"))]
#[cfg_attr(docsrs, doc(cfg(all(feature = "alloc", feature = "ecdsa"))))]
#[derive(Clone, Debug, Eq, PartialEq, PartialOrd, Ord)]
pub struct SkEcdsaSha2NistP256 {
    /// Public key.
    public: public::SkEcdsaSha2NistP256,

    /// Flags.
    flags: u8,

    /// FIDO/U2F key handle.
    key_handle: Vec<u8>,

    /// Reserved data.
    reserved: Vec<u8>,
}

#[cfg(feature = "ecdsa")]
impl SkEcdsaSha2NistP256 {
    /// Get the ECDSA/NIST P-256 public key.
    pub fn public(&self) -> &public::SkEcdsaSha2NistP256 {
        &self.public
    }

    /// Get flags.
    pub fn flags(&self) -> u8 {
        self.flags
    }

    /// Get FIDO/U2F key handle.
    pub fn key_handle(&self) -> &[u8] {
        &self.key_handle
    }
}

#[cfg(feature = "ecdsa")]
impl Decode for SkEcdsaSha2NistP256 {
    fn decode(reader: &mut impl Reader) -> Result<Self> {
        Ok(Self {
            public: public::SkEcdsaSha2NistP256::decode(reader)?,
            flags: u8::decode(reader)?,
            key_handle: Vec::decode(reader)?,
            reserved: Vec::decode(reader)?,
        })
    }
}

#[cfg(feature = "ecdsa")]
impl Encode for SkEcdsaSha2NistP256 {
    fn encoded_len(&self) -> Result<usize> {
        [
            self.public.encoded_len()?,
            self.flags.encoded_len()?,
            self.key_handle.encoded_len()?,
            self.reserved.encoded_len()?,
        ]
        .checked_sum()
    }

    fn encode(&self, writer: &mut impl Writer) -> Result<()> {
        self.public.encode(writer)?;
        self.flags.encode(writer)?;
        self.key_handle.encode(writer)?;
        self.reserved.encode(writer)
    }
}

/// Security Key (FIDO/U2F) Ed25519 private key as specified in
/// [PROTOCOL.u2f](https://cvsweb.openbsd.org/src/usr.bin/ssh/PROTOCOL.u2f?annotate=HEAD).
#[cfg(feature = "alloc")]
#[cfg_attr(docsrs, doc(cfg(feature = "alloc")))]
#[derive(Clone, Debug, Eq, PartialEq, PartialOrd, Ord)]
pub struct SkEd25519 {
    /// Public key.
    public: public::SkEd25519,

    /// Flags.
    flags: u8,

    /// FIDO/U2F key handle.
    key_handle: Vec<u8>,

    /// Reserved data.
    reserved: Vec<u8>,
}

impl SkEd25519 {
    /// Get the Ed25519 public key.
    pub fn public(&self) -> &public::SkEd25519 {
        &self.public
    }

    /// Get flags.
    pub fn flags(&self) -> u8 {
        self.flags
    }

    /// Get FIDO/U2F key handle.
    pub fn key_handle(&self) -> &[u8] {
        &self.key_handle
    }
}

impl Decode for SkEd25519 {
    fn decode(reader: &mut impl Reader) -> Result<Self> {
        Ok(Self {
            public: public::SkEd25519::decode(reader)?,
            flags: u8::decode(reader)?,
            key_handle: Vec::decode(reader)?,
            reserved: Vec::decode(reader)?,
        })
    }
}

impl Encode for SkEd25519 {
    fn encoded_len(&self) -> Result<usize> {
        [
            self.public.encoded_len()?,
            self.flags.encoded_len()?,
            self.key_handle.encoded_len()?,
            self.reserved.encoded_len()?,
        ]
        .checked_sum()
    }

    fn encode(&self, writer: &mut impl Writer) -> Result<()> {
        self.public.encode(writer)?;
        self.flags.encode(writer)?;
        self.key_handle.encode(writer)?;
        self.reserved.encode(writer)
    }
}