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
199
200

#[derive(Copy, Clone)]
pub enum Token {
    E,
    S,
    EE,
    ES,
    SE,
    SS,
}

use self::Token::*;

/// Noise handshake pattern.
#[derive(Clone)]
pub struct HandshakePattern {
    pre_i: Vec<Token>,
    pre_r: Vec<Token>,
    msg_patterns: Vec<Vec<Token>>,
    name: &'static str,
}

impl HandshakePattern {
    pub fn get_pre_i(&self) -> &[Token] {
        &self.pre_i
    }

    pub fn get_pre_r(&self) -> &[Token] {
        &self.pre_r
    }

    pub fn get_message_patterns(&self) -> &[Vec<Token>] {
        &self.msg_patterns
    }

    pub fn get_name(&self) -> &str {
        self.name
    }
}

/// The `Noise_N` pattern.
pub fn noise_n() -> HandshakePattern {
    HandshakePattern {
        pre_i: vec![],
        pre_r: vec![S],
        msg_patterns: vec![vec![E, ES]],
        name: "N",
    }
}

/// The `Noise_K` pattern.
pub fn noise_k() -> HandshakePattern {
    HandshakePattern {
        pre_i: vec![S],
        pre_r: vec![S],
        msg_patterns: vec![vec![E, ES, SS]],
        name: "K",
    }
}

/// The `Noise_X` pattern.
pub fn noise_x() -> HandshakePattern {
    HandshakePattern {
        pre_i: vec![],
        pre_r: vec![S],
        msg_patterns: vec![vec![E, ES, S, SS]],
        name: "X",
    }
}

/// The `Noise_NN` pattern.
pub fn noise_nn() -> HandshakePattern {
    HandshakePattern {
        pre_i: vec![],
        pre_r: vec![],
        msg_patterns: vec![vec![E], vec![E, EE]],
        name: "NN",
    }
}

/// The `Noise_NK` pattern.
pub fn noise_nk() -> HandshakePattern {
    HandshakePattern {
        pre_i: vec![],
        pre_r: vec![S],
        msg_patterns: vec![vec![E, ES], vec![E, EE]],
        name: "NK",
    }
}

/// The `Noise_NX` pattern.
pub fn noise_nx() -> HandshakePattern {
    HandshakePattern {
        pre_i: vec![],
        pre_r: vec![],
        msg_patterns: vec![vec![E], vec![E, EE, S, ES]],
        name: "NX",
    }
}

/// The `Noise_XN` pattern.
pub fn noise_xn() -> HandshakePattern {
    HandshakePattern {
        pre_i: vec![],
        pre_r: vec![],
        msg_patterns: vec![vec![E], vec![E, EE], vec![S, SE]],
        name: "XN",
    }
}

/// The `Noise_XK` pattern.
pub fn noise_xk() -> HandshakePattern {
    HandshakePattern {
        pre_i: vec![],
        pre_r: vec![S],
        msg_patterns: vec![vec![E, ES], vec![E, EE], vec![S, SE]],
        name: "XK",
    }
}

/// The `Noise_XX` pattern.
pub fn noise_xx() -> HandshakePattern {
    HandshakePattern {
        pre_i: vec![],
        pre_r: vec![],
        msg_patterns: vec![vec![E], vec![E, EE, S, ES], vec![S, SE]],
        name: "XX",
    }
}

/// The `Noise_KN` pattern.
pub fn noise_kn() -> HandshakePattern {
    HandshakePattern {
        pre_i: vec![S],
        pre_r: vec![],
        msg_patterns: vec![vec![E], vec![E, EE, SE]],
        name: "KN",
    }
}

/// The `Noise_KK` pattern.
pub fn noise_kk() -> HandshakePattern {
    HandshakePattern {
        pre_i: vec![S],
        pre_r: vec![S],
        msg_patterns: vec![vec![E, ES, SS], vec![E, EE, SE]],
        name: "KK",
    }
}

/// The `Noise_KX` pattern.
pub fn noise_kx() -> HandshakePattern {
    HandshakePattern {
        pre_i: vec![S],
        pre_r: vec![],
        msg_patterns: vec![vec![E], vec![E, EE, SE, S, ES]],
        name: "KX",
    }
}

/// The `Noise_IN` pattern.
pub fn noise_in() -> HandshakePattern {
    HandshakePattern {
        pre_i: vec![],
        pre_r: vec![],
        msg_patterns: vec![vec![E, S], vec![E, EE, SE]],
        name: "IN",
    }
}

/// The `Noise_IK` pattern.
pub fn noise_ik() -> HandshakePattern {
    HandshakePattern {
        pre_i: vec![],
        pre_r: vec![S],
        msg_patterns: vec![vec![E, ES, S, SS], vec![E, EE, SE]],
        name: "IK",
    }
}

/// The `Noise_IX` pattern.
pub fn noise_ix() -> HandshakePattern {
    HandshakePattern {
        pre_i: vec![],
        pre_r: vec![],
        msg_patterns: vec![vec![E, S], vec![E, EE, SE, S, ES]],
        name: "IX",
    }
}

/// The `Noise_XXfallback` pattern.
///
/// Something that is used in noise pipes.
pub fn noise_xx_fallback() -> HandshakePattern {
    HandshakePattern {
        pre_i: vec![],
        pre_r: vec![E],
        msg_patterns: vec![vec![E, EE, S, SE], vec![S, ES]],
        name: "XXfallback",
    }
}