28 lines
494 B
Go
28 lines
494 B
Go
// +build ignore
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package main
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import "fmt"
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func main() {
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//Round constants
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var RC [24]uint64
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rc := uint8(1)
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for i := 0; i < 24; i++ {
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for j := 0; j <= 6; j++ {
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RC[i] |= uint64(rc&1) << (1<<uint(j) - 1)
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rc = rc<<1 ^ 0x71&uint8(int8(rc)>>7)
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}
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}
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fmt.Println("package keccak")
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fmt.Printf("var RC = %#016v\n", RC)
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var rot [5][5]uint
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x, y := 1, 0
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for i := 0; i < 24; i++ {
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rot[x][y] = uint((i+1)*(i+2)/2)%64
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x, y = y, (2*x+3*y)%5
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}
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fmt.Printf("var rotc = %#v\n", rot)
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}
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