diff options
| -rw-r--r-- | lib/oracle.go | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/lib/oracle.go b/lib/oracle.go index 47d850c..6a229dc 100644 --- a/lib/oracle.go +++ b/lib/oracle.go @@ -63,6 +63,25 @@ func OracleAESEncryptECB(in []byte) []byte { return AESEncryptECB(append(in, Base64ToBytes(oracleUnknown)...), oracleKey) } +// Return a random number from range [min, max] +func randomInt(min, max int64) int64 { + if min >= max { + panic("randomInt: min cannot be >= max!") + } + + var rn *big.Int + var err error + for { + rn, err = rand.Int(rand.Reader, big.NewInt(max+1)) + if err != nil { + panic(err) + } + if rn.Int64() >= min { + return rn.Int64() + } + } +} + // Randomly generates `min` to `max` bytes. func randomBytes(min, max int64) []byte { var rn *big.Int |