26 lines
441 B
Go
26 lines
441 B
Go
package app
|
|
|
|
import (
|
|
"crypto/rand"
|
|
"encoding/binary"
|
|
|
|
"github.com/pkg/errors"
|
|
)
|
|
|
|
type cryptoSource struct{}
|
|
|
|
func (s cryptoSource) Seed(seed int64) {}
|
|
|
|
func (s cryptoSource) Int63() int64 {
|
|
return int64(s.Uint64() & ^uint64(1<<63))
|
|
}
|
|
|
|
func (s cryptoSource) Uint64() (v uint64) {
|
|
err := binary.Read(rand.Reader, binary.BigEndian, &v)
|
|
if err != nil {
|
|
panic(errors.Wrap(err, "could not read number for random source"))
|
|
}
|
|
|
|
return v
|
|
}
|