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

#![allow(non_snake_case)]

pub mod wrappers;

extern crate libc;

use std::fmt;
use std::str::SplitWhitespace;
use big::wrappers::*;
use fp2::wrappers::*;
use randapi::wrappers::*;
use ecp2::wrappers::*;

impl ECP2 {
    pub fn set(P: &mut ECP2, x: &FP2, y: &FP2) {
        unsafe {
            ECP2_set(P, x, y);
        }
    }

    pub fn mul(P: &mut ECP2, e: &BIG) {
        unsafe {
            ECP2_mul(P, e);
        }
    }

    pub fn add(P: &mut ECP2, Q: &ECP2) {
        unsafe {
            ECP2_add(P, Q);
        }
    }

    pub fn sub(P: &mut ECP2, Q:&ECP2) {
        unsafe {
            ECP2_sub(P, Q);
        }
    }

    pub fn toOctet(W: &mut octet, P: &ECP2) {
        unsafe {
            ECP2_toOctet(W, P);
        }
    }

    pub fn fromOctet(W: &octet) -> ECP2 {
        let mut ret: ECP2 = ECP2::default();
        unsafe {
            ECP2_fromOctet(&mut ret, W);
        }
        return ret;
    }


    pub fn inf(P: &mut ECP2) {
        unsafe {
            ECP2_inf(P);
        }
    }

    pub fn new_fp2s(x: FP2, y: FP2, z: FP2) -> ECP2 {
        ECP2 {
            inf: 0,
            x: x,
            y: y,
            z: z
        }
    }

    pub fn to_hex(&self) -> String {
        let mut ret: String = String::with_capacity(7 * BIG_HEX_STRING_LEN);
        ret.push_str(&format!("{} {} {} {}", self.inf, self.x.to_hex(), self.y.to_hex(), self.z.to_hex()));
        return ret;
    }

    pub fn from_hex_iter(iter: &mut SplitWhitespace) -> ECP2 {
        let mut ret:ECP2 = ECP2::default();
        if let Some(x) = iter.next() {
            ret.inf = i32::from_str_radix(x, 16).unwrap();
            ret.x = FP2::from_hex_iter(iter);
            ret.y = FP2::from_hex_iter(iter);
            ret.z = FP2::from_hex_iter(iter);
        }
        return ret;
    }

    pub fn from_hex(val: String) -> ECP2 {
        let mut iter = val.split_whitespace();
        return ECP2::from_hex_iter(&mut iter);
    }
}

impl PartialEq for ECP2 {
    fn eq(&self, other: &ECP2) -> bool {
        return (self.inf == other.inf) &&
            (self.x == other.x) &&
            (self.y == other.y) &&
            (self.z == other.z);
    }
}

impl Copy for ECP2 { }

impl Clone for ECP2 {
    fn clone(&self) -> ECP2 {
        ECP2 {
            inf: self.inf,
            x: self.x,
            y: self.y,
            z: self.z
        }
    }
}

impl fmt::Display for ECP2 {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        write!(f, "ECP2: [ {}, {}, {}, {} ]", self.inf, self.x, self.y, self.z)
    }
}

impl fmt::Debug for ECP2 {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        write!(f, "ECP2: [ {}, {}, {}, {} ]", self.inf, self.x, self.y, self.z)
    }
}



#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_ecp2_hex_io() {
        let m = ECP2::from_hex(String::from("0 \
                                             1 0 0 0 0 0 0 0 0 0 \
                                             2 0 0 0 0 0 0 0 0 0 \
                                             3 0 0 0 0 0 0 0 0 0"));
        let s = m.to_hex();
        let r = ECP2::from_hex(s.clone());
        println!("ecp2_hex_io=s:{},m:{},r:{}", s, m, r);
        assert_eq!(m, r);
    }
}