20 lines
525 B
Go
20 lines
525 B
Go
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package checksum
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import (
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"fmt"
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"hash/crc32"
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)
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var Crc32Castagnoli = crc32.MakeTable(crc32.Castagnoli)
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// Crc32 returns the CRC-32 checksum of data using the crc32.IEEE polynomial.
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func Crc32(data []byte) uint32 {
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return crc32.ChecksumIEEE(data)
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}
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// Serial returns the CRC-32 checksum as a hexadecimal encoded string using the Castagnoli polynomial,
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// which has better error detection properties than crc32.IEEE.
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func Serial(data []byte) string {
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return fmt.Sprintf("%08x", crc32.Checksum(data, Crc32Castagnoli))
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}
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