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
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
//! One-pass signature packets.
//!
//! See [Section 5.4 of RFC 4880] for details.
//!
//! [Section 5.4 of RFC 4880]: https://tools.ietf.org/html/rfc4880#section-5.4
use std::fmt;
use quickcheck::{Arbitrary, Gen};
use crate::Error;
use crate::Packet;
use crate::packet;
use crate::packet::Signature;
use crate::Result;
use crate::KeyID;
use crate::HashAlgorithm;
use crate::PublicKeyAlgorithm;
use crate::SignatureType;
use crate::serialize::SerializeInto;
/// Holds a one-pass signature packet.
///
/// See [Section 5.4 of RFC 4880] for details.
///
/// [Section 5.4 of RFC 4880]: https://tools.ietf.org/html/rfc4880#section-5.4
#[derive(Eq, Hash, Clone)]
pub struct OnePassSig3 {
/// CTB packet header fields.
pub(crate) common: packet::Common,
/// Type of the signature.
sigtype: SignatureType,
/// Hash algorithm used to compute the signature.
hash_algo: HashAlgorithm,
/// Public key algorithm of this signature.
pk_algo: PublicKeyAlgorithm,
/// Key ID of the signing key.
issuer: KeyID,
/// A one-octet number holding a flag showing whether the signature
/// is nested.
last: u8,
}
impl fmt::Debug for OnePassSig3 {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.debug_struct("OnePassSig3")
.field("sigtype", &self.sigtype)
.field("hash_algo", &self.hash_algo)
.field("pk_algo", &self.pk_algo)
.field("issuer", &self.issuer)
.field("last", &self.last)
.finish()
}
}
impl PartialEq for OnePassSig3 {
fn eq(&self, other: &OnePassSig3) -> bool {
// Comparing the relevant fields is error prone in case we add
// a field at some point. Instead, we compare the serialized
// versions.
if let (Ok(a), Ok(b)) = (self.to_vec(), other.to_vec()) {
a == b
} else {
false
}
}
}
impl OnePassSig3 {
/// Returns a new `Signature` packet.
pub fn new(sigtype: SignatureType) -> Self {
OnePassSig3 {
common: Default::default(),
sigtype: sigtype,
hash_algo: HashAlgorithm::Unknown(0),
pk_algo: PublicKeyAlgorithm::Unknown(0),
issuer: KeyID::new(0),
last: 1,
}
}
/// Gets the signature type.
pub fn sigtype(&self) -> SignatureType {
self.sigtype
}
/// Sets the signature type.
pub fn set_sigtype(&mut self, t: SignatureType) -> SignatureType {
::std::mem::replace(&mut self.sigtype, t)
}
/// Gets the public key algorithm.
pub fn pk_algo(&self) -> PublicKeyAlgorithm {
self.pk_algo
}
/// Sets the public key algorithm.
pub fn set_pk_algo(&mut self, algo: PublicKeyAlgorithm) -> PublicKeyAlgorithm {
::std::mem::replace(&mut self.pk_algo, algo)
}
/// Gets the hash algorithm.
pub fn hash_algo(&self) -> HashAlgorithm {
self.hash_algo
}
/// Sets the hash algorithm.
pub fn set_hash_algo(&mut self, algo: HashAlgorithm) -> HashAlgorithm {
::std::mem::replace(&mut self.hash_algo, algo)
}
/// Gets the issuer.
pub fn issuer(&self) -> &KeyID {
&self.issuer
}
/// Sets the issuer.
pub fn set_issuer(&mut self, issuer: KeyID) -> KeyID {
::std::mem::replace(&mut self.issuer, issuer)
}
/// Gets the last flag.
pub fn last(&self) -> bool {
self.last > 0
}
/// Sets the last flag.
pub fn set_last(&mut self, last: bool) -> bool {
::std::mem::replace(&mut self.last, if last { 1 } else { 0 }) > 0
}
/// Gets the raw value of the last flag.
pub fn last_raw(&self) -> u8 {
self.last
}
/// Sets the raw value of the last flag.
pub fn set_last_raw(&mut self, last: u8) -> u8 {
::std::mem::replace(&mut self.last, last)
}
}
impl From<OnePassSig3> for super::OnePassSig {
fn from(s: OnePassSig3) -> Self {
super::OnePassSig::V3(s)
}
}
impl From<OnePassSig3> for Packet {
fn from(p: OnePassSig3) -> Self {
super::OnePassSig::from(p).into()
}
}
impl<'a> From<&'a Signature> for Result<OnePassSig3> {
fn from(s: &'a Signature) -> Self {
let issuer = match s.issuer() {
Some(i) => i,
None =>
return Err(Error::InvalidArgument(
"Signature has no issuer".into()).into()),
};
Ok(OnePassSig3 {
common: Default::default(),
sigtype: s.sigtype(),
hash_algo: s.hash_algo(),
pk_algo: s.pk_algo(),
issuer: issuer,
last: 0,
})
}
}
impl Arbitrary for OnePassSig3 {
fn arbitrary<G: Gen>(g: &mut G) -> Self {
let mut ops = OnePassSig3::new(SignatureType::arbitrary(g));
ops.set_hash_algo(HashAlgorithm::arbitrary(g));
ops.set_pk_algo(PublicKeyAlgorithm::arbitrary(g));
ops.set_issuer(KeyID::arbitrary(g));
ops.set_last_raw(u8::arbitrary(g));
ops
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::parse::Parse;
use crate::serialize::SerializeInto;
quickcheck! {
fn roundtrip(p: OnePassSig3) -> bool {
let q = OnePassSig3::from_bytes(&p.to_vec().unwrap()).unwrap();
assert_eq!(p, q);
true
}
}
}
|