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32 lines
571 B
32 lines
571 B
package sha512
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import (
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"github.com/consensys/gnark/frontend"
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)
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func ShR512(api frontend.API, in []frontend.Variable, r int) ([]frontend.Variable) {
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n := len(in)
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out := make([] frontend.Variable, n)
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for i := 0; i < n; i++ {
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if i+r >= n {
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out[i] = 0
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} else {
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out[i] = in[i+r]
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}
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}
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return out
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}
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// template ShR512(n, r) {
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// signal input in[n];
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// signal output out[n];
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// for (var i=0; i<n; i++) {
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// if (i+r >= n) {
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// out[i] <== 0;
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// } else {
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// out[i] <== in[ i+r ];
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// }
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// }
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// }
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