79 lines
1.9 KiB
Go
79 lines
1.9 KiB
Go
package main
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import (
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"fmt"
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"strconv"
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)
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func ownCalcPass(password, nonce string) uint32 {
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start := true
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num1 := uint32(0)
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num2 := num1
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i, _ := strconv.Atoi(password)
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pwd := uint32(i)
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for _, c := range nonce {
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if c != '0' {
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if start {
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num2 = pwd
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}
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start = false
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}
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switch c {
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case '1':
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num1 = (num2 & 0xFFFFFF80) >> 7
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num2 = num2 << 25
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case '2':
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num1 = (num2 & 0xFFFFFFF0) >> 4
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num2 = num2 << 28
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case '3':
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num1 = (num2 & 0xFFFFFFF8) >> 3
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num2 = num2 << 29
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case '4':
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num1 = num2 << 1
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num2 = num2 >> 31
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case '5':
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num1 = num2 << 5
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num2 = num2 >> 27
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case '6':
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num1 = num2 << 12
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num2 = num2 >> 20
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case '7':
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num3 := num2 & 0x0000FF00
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num4 := ((num2 & 0x000000FF) << 24) | ((num2 & 0x00FF0000) >> 16)
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num1 = num3 | num4
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num2 = (num2 & 0xFF000000) >> 8
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case '8':
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num1 = (num2&0x0000FFFF)<<16 | (num2 >> 24)
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num2 = (num2 & 0x00FF0000) >> 8
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case '9':
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num1 = ^num2
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default:
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num1 = num2
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}
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num1 &= 0xFFFFFFFF
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num2 &= 0xFFFFFFFF
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if c != '0' && c != '9' {
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num1 |= num2
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}
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num2 = num1
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}
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return num1
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}
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func testPasswordCalc(password, nonce string, expected uint32) {
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res := ownCalcPass(password, nonce)
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m := fmt.Sprintf("%s %s %-10d %-10d", password, nonce, res, expected)
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if res == expected {
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fmt.Println("PASS", m)
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} else {
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fmt.Println("FAIL", m)
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}
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}
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func main() {
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testPasswordCalc("12345", "603356072", 25280520)
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testPasswordCalc("12345", "410501656", 119537670)
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testPasswordCalc("12345", "630292165", 4269684735)
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}
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