xor

Documentation

Index

• Variables
• func DecodingReader(r io.Reader, key *Key, expectedSize int64) io.Reader
• func EncodingWriter(w io.Writer, key *Key, expectedSize int64) io.Writer
• type Key

Variables

var DefaultKey = KnownKeys["56ad"]

It is the default key since the author of this package happens to have only ggpack files encrypted with this key.

var KnownKeys = map[string]*Key{
	"5b6d": {
		MagicBytes: [...]byte{
			0x4F, 0xD0, 0xA0, 0xAC, 0x4A, 0x5B, 0xB9, 0xE5,
			0x93, 0x79, 0x45, 0xA5, 0xC1, 0xCB, 0x31, 0x93,
		},
		Multiplier: 0x6D,
	},
	"566d": {
		MagicBytes: [...]byte{
			0x4F, 0xD0, 0xA0, 0xAC, 0x4A, 0x56, 0xB9, 0xE5,
			0x93, 0x79, 0x45, 0xA5, 0xC1, 0xCB, 0x31, 0x93,
		},
		Multiplier: 0x6D,
	},
	"5bad": {
		MagicBytes: [...]byte{
			0x4F, 0xD0, 0xA0, 0xAC, 0x4A, 0x5B, 0xB9, 0xE5,
			0x93, 0x79, 0x45, 0xA5, 0xC1, 0xCB, 0x31, 0x93,
		},
		Multiplier: 0xAD,
	},
	"56ad": {
		MagicBytes: [...]byte{
			0x4F, 0xD0, 0xA0, 0xAC, 0x4A, 0x56, 0xB9, 0xE5,
			0x93, 0x79, 0x45, 0xA5, 0xC1, 0xCB, 0x31, 0x93,
		},
		Multiplier: 0xAD,
	},
}

KnownKeys is a collection of XOR keys for ggpack files found in the wild. These keys differ slightly at MagicBytes[5] (0x5B vs. 0x56) and regarding the multiplier (0x6D vs. 0xAD). This is reflected in the names (e.g. "56ad") by which they can be referenced.

Functions

func DecodingReader

func DecodingReader(r io.Reader, key *Key, expectedSize int64) io.Reader

func EncodingWriter

func EncodingWriter(w io.Writer, key *Key, expectedSize int64) io.Writer

Types

type Key

type Key struct {
	MagicBytes [16]byte
	Multiplier byte
}