33 lines
721 B
Go
33 lines
721 B
Go
package d2mpq
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var cryptoBuffer [0x500]uint32 //nolint:gochecknoglobals // will fix later..
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var cryptoBufferReady bool //nolint:gochecknoglobals // will fix later..
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func cryptoLookup(index uint32) uint32 {
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if !cryptoBufferReady {
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cryptoInitialize()
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cryptoBufferReady = true
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}
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return cryptoBuffer[index]
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}
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//nolint:gomnd // magic cryptographic stuff here...
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func cryptoInitialize() {
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seed := uint32(0x00100001)
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for index1 := 0; index1 < 0x100; index1++ {
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index2 := index1
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for i := 0; i < 5; i++ {
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seed = (seed*125 + 3) % 0x2AAAAB
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temp1 := (seed & 0xFFFF) << 0x10
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seed = (seed*125 + 3) % 0x2AAAAB
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temp2 := seed & 0xFFFF
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cryptoBuffer[index2] = temp1 | temp2
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index2 += 0x100
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}
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}
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}
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