29 lines
376 B
Go
29 lines
376 B
Go
|
package sbmock
|
||
|
|
|
||
|
|
import (
|
||
|
|
"crypto/rand"
|
||
|
|
"crypto/sha256"
|
||
|
|
"io"
|
||
|
|
"io/ioutil"
|
||
|
|
)
|
||
|
|
|
||
|
|
func randB(n uint64) []byte {
|
||
|
|
b, err := ioutil.ReadAll(io.LimitReader(rand.Reader, int64(n)))
|
||
|
|
if err != nil {
|
||
|
|
panic(err)
|
||
|
|
}
|
||
|
|
return b
|
||
|
|
}
|
||
|
|
|
||
|
|
func commDR(in []byte) (out [32]byte) {
|
||
|
|
for i, b := range in {
|
||
|
|
out[i] = ^b
|
||
|
|
}
|
||
|
|
|
||
|
|
return out
|
||
|
|
}
|
||
|
|
|
||
|
|
func commD(b []byte) [32]byte {
|
||
|
|
return sha256.Sum256(b)
|
||
|
|
}
|