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
|
//! Shared OpenSSH helpers.
use ssh_key::Algorithm;
/// The algorithm string for x25519 SSH keys.
///
/// See <https://spec.torproject.org/ssh-protocols.html>
pub(crate) const X25519_ALGORITHM_NAME: &str = "[email protected]";
/// The algorithm string for expanded ed25519 SSH keys.
///
/// See <https://spec.torproject.org/ssh-protocols.html>
pub(crate) const ED25519_EXPANDED_ALGORITHM_NAME: &str = "[email protected]";
/// SSH key algorithms.
//
// Note: this contains all the types supported by ssh_key, plus variants representing
// x25519 and expanded ed25519 keys.
#[derive(Clone, Debug, PartialEq, derive_more::Display)]
#[non_exhaustive]
pub enum SshKeyAlgorithm {
/// Digital Signature Algorithm
Dsa,
/// Elliptic Curve Digital Signature Algorithm
Ecdsa,
/// Ed25519
Ed25519,
/// Expanded Ed25519
Ed25519Expanded,
/// X25519
X25519,
/// RSA
Rsa,
/// FIDO/U2F key with ECDSA/NIST-P256 + SHA-256
SkEcdsaSha2NistP256,
/// FIDO/U2F key with Ed25519
SkEd25519,
/// An unrecognized [`ssh_key::Algorithm`].
Unknown(ssh_key::Algorithm),
}
impl From<Algorithm> for SshKeyAlgorithm {
fn from(algo: Algorithm) -> SshKeyAlgorithm {
match &algo {
Algorithm::Dsa => SshKeyAlgorithm::Dsa,
Algorithm::Ecdsa { .. } => SshKeyAlgorithm::Ecdsa,
Algorithm::Ed25519 => SshKeyAlgorithm::Ed25519,
Algorithm::Rsa { .. } => SshKeyAlgorithm::Rsa,
Algorithm::SkEcdsaSha2NistP256 => SshKeyAlgorithm::SkEcdsaSha2NistP256,
Algorithm::SkEd25519 => SshKeyAlgorithm::SkEd25519,
Algorithm::Other(name) => match name.as_str() {
X25519_ALGORITHM_NAME => SshKeyAlgorithm::X25519,
ED25519_EXPANDED_ALGORITHM_NAME => SshKeyAlgorithm::Ed25519Expanded,
_ => SshKeyAlgorithm::Unknown(algo),
},
// Note: ssh_key::Algorithm is non_exhaustive, so we need this catch-all variant
_ => SshKeyAlgorithm::Unknown(algo),
}
}
}
|
