Mask the data in place. Padding zeros to userData if the len of userData is smaller than that of maskData.
(maskData []byte, userData []byte)
| 56 | |
| 57 | // Mask the data in place. Padding zeros to userData if the len of userData is smaller than that of maskData. |
| 58 | func MaskDataInPlace(maskData []byte, userData []byte) []byte { |
| 59 | if len(userData) > len(maskData) { |
| 60 | panic("user data can not be larger than mask data") |
| 61 | } |
| 62 | for i := 0; i < len(userData); i++ { |
| 63 | maskData[i] = maskData[i] ^ userData[i] |
| 64 | } |
| 65 | return maskData |
| 66 | } |
| 67 | |
| 68 | // Unmask the data in place |
| 69 | func UnmaskDataInPlace(userData []byte, maskData []byte) []byte { |