2020-05-20 22:45:40 +03:00
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circuit PedersenHash {
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2020-09-02 21:25:49 +03:00
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parameters: [u32; 512]
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2020-07-03 23:35:46 +03:00
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2020-09-02 21:25:49 +03:00
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static function new(parameters: [u32; 512]) -> Self {
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2020-05-20 22:45:40 +03:00
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return Self { parameters: parameters }
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}
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2020-07-03 23:35:46 +03:00
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2020-09-02 21:25:49 +03:00
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function hash(bits: [bool; 512]) -> u32 {
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2020-06-20 09:02:58 +03:00
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let mut digest: u32 = 0;
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2020-05-20 22:45:40 +03:00
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for i in 0..512 {
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2020-07-03 23:35:46 +03:00
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let base = if bits[i] ? self.parameters[i] : 0u32;
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2020-05-20 22:45:40 +03:00
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digest += base;
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}
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return digest
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}
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}
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2020-06-20 09:02:58 +03:00
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// The 'pedersen_hash' main function.
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2020-07-30 21:11:54 +03:00
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function main() {
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2020-06-20 09:02:58 +03:00
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let parameters = [0u32; 512];
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2020-05-20 22:45:40 +03:00
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let pedersen = PedersenHash::new(parameters);
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2020-09-02 21:25:49 +03:00
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let input: [bool; 512] = [true; 512];
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2020-07-30 21:11:54 +03:00
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2020-08-17 05:14:26 +03:00
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let res = pedersen.hash(input);
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console.assert(res == 0u32);
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2020-06-20 09:02:58 +03:00
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}
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