21 lines
495 B
Go
21 lines
495 B
Go
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package spectre
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import "golang.org/x/crypto/scrypt"
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func userKey(name, secret string, scoper Scoper) ([]byte, error) {
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nameBytes := []byte(name)
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secretBytes := []byte(secret)
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keyScope := []byte(scoper.Scope(Authentication))
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nameBytesLen := len(nameBytes)
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keySalt := append(keyScope,
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byte(nameBytesLen>>24),
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byte(nameBytesLen>>16),
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byte(nameBytesLen>>8),
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byte(nameBytesLen),
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)
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keySalt = append(keySalt, nameBytes...)
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return scrypt.Key(secretBytes, keySalt, 32768, 8, 2, 64)
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}
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