frostfs-node/pkg/util/salt.go
Leonard Lyubich 9d8576d397 [] util: Add SaltXOR function
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:36 +03:00

17 lines
307 B
Go

package util
// SaltXOR xors bits of data with salt
// repeating salt if necessary.
func SaltXOR(data, salt []byte) (result []byte) {
result = make([]byte, len(data))
ls := len(salt)
if ls == 0 {
copy(result, data)
return
}
for i := range result {
result[i] = data[i] ^ salt[i%ls]
}
return
}