ige

package

v1.7.2 Latest Latest Go to latest Published: Jan 27, 2026 License: GPL-3.0 Imports: 13 Imported by: 0

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Valid go.mod file
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Stable version
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Repository

github.com/amarnathcjd/gogram

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Documentation ¶

Index ¶

Variables
func AlgoKey(password, salt []byte, iter, keyLen int, h func() hash.Hash) []byte
func BigExp(x, y, m *big.Int) *big.Int
func BytesToBig(b []byte) *big.Int
func BytesXor(a, b []byte) []byte
func Decrypt(msg, authKey, checkData []byte) ([]byte, error)
func DecryptAES(data []byte, key string) ([]byte, error)
func DecryptMessageMTProto(key []byte, msgKey []byte, encrypted []byte, isOriginator bool) (plaintext []byte, err error)
func DecryptMessageWithTempKeys(msg []byte, nonceSecond, nonceServer *big.Int) ([]byte, error)
func Encrypt(msg, authKey []byte) (out, msgKey []byte, _ error)
func EncryptAES(data []byte, key string) ([]byte, error)
func EncryptMessageMTProto(key []byte, plaintext []byte, isOriginator bool) (msgKey []byte, encrypted []byte, err error)
func EncryptMessageWithTempKeys(msg []byte, nonceSecond, nonceServer *big.Int) ([]byte, error)
func EncryptV1(plaintext, authKey []byte) (out, msgKey []byte, _ error)
func MessageKey(authKey, msgPadded []byte, decode bool) []byte
func Pad256(b []byte) []byte
func PasswordHash2(password, salt1, salt2 []byte) []byte
func RandomBytes(size int) []byte
type AesBlock
type AesIgeBlock
type AesKV
type Cipher
- func NewCipher(key, iv []byte) (*Cipher, error)
- func (c *Cipher) DoAES256IGEdecrypt(in, out []byte) error
- func (c *Cipher) DoAES256IGEencrypt(in, out []byte) error
type ModPow
type SrpAnswer
- func GetInputCheckPassword(password string, srpB []byte, mp *ModPow, random []byte) (*SrpAnswer, error)

Constants ¶

This section is empty.

Variables ¶

View Source

var (
	ErrDataTooSmall     = errors.New("AES256IGE: data too small")
	ErrDataNotDivisible = errors.New("AES256IGE: data not divisible by block size")
	ErrKeySize          = errors.New("AES256IGE: invalid key size: must be 256 bits")
	ErrMsgKeySize       = errors.New("AES256IGE: invalid msg_key size: must be 16 bytes")
)

Functions ¶

func AlgoKey ¶

func AlgoKey(password, salt []byte, iter, keyLen int, h func() hash.Hash) []byte

func BigExp ¶

func BigExp(x, y, m *big.Int) *big.Int

func BytesToBig ¶

func BytesToBig(b []byte) *big.Int

func BytesXor ¶

func BytesXor(a, b []byte) []byte

func Decrypt ¶

func Decrypt(msg, authKey, checkData []byte) ([]byte, error)

func DecryptAES ¶

func DecryptAES(data []byte, key string) ([]byte, error)

func DecryptMessageMTProto ¶ added in v1.7.0

func DecryptMessageMTProto(key []byte, msgKey []byte, encrypted []byte, isOriginator bool) (plaintext []byte, err error)

DecryptMessageMTProto2 decrypts a message using MTProto 2.0 encryption for secret chats x = 0 for originator, x = 8 for responder (same as encryption)

func DecryptMessageWithTempKeys ¶

func DecryptMessageWithTempKeys(msg []byte, nonceSecond, nonceServer *big.Int) ([]byte, error)

DecryptMessageWithTempKeys decrypts a message using temporary keys obtained during the Diffie-Hellman key exchange.

func Encrypt ¶

func Encrypt(msg, authKey []byte) (out, msgKey []byte, _ error)

func EncryptAES ¶

func EncryptAES(data []byte, key string) ([]byte, error)

func EncryptMessageMTProto ¶ added in v1.7.0

func EncryptMessageMTProto(key []byte, plaintext []byte, isOriginator bool) (msgKey []byte, encrypted []byte, err error)

EncryptMessageMTProto encrypts a message using MTProto 2.0 encryption for secret chats x = 0 for originator, x = 8 for responder

func EncryptMessageWithTempKeys ¶

func EncryptMessageWithTempKeys(msg []byte, nonceSecond, nonceServer *big.Int) ([]byte, error)

EncryptMessageWithTempKeys encrypts a message using temporary keys obtained during the Diffie-Hellman key exchange.

func EncryptV1 ¶ added in v1.6.9

func EncryptV1(plaintext, authKey []byte) (out, msgKey []byte, _ error)

EncryptV1 encryptV1.

func MessageKey ¶

func MessageKey(authKey, msgPadded []byte, decode bool) []byte

func Pad256 ¶

func Pad256(b []byte) []byte

func PasswordHash2 ¶

func PasswordHash2(password, salt1, salt2 []byte) []byte

func RandomBytes ¶

func RandomBytes(size int) []byte

Types ¶

type AesBlock ¶

type AesBlock [aes.BlockSize]byte

type AesIgeBlock ¶

type AesIgeBlock [48]byte

type AesKV ¶

type AesKV [32]byte

type Cipher ¶

type Cipher struct {
	// contains filtered or unexported fields
}

func NewCipher ¶

func NewCipher(key, iv []byte) (*Cipher, error)

NewCipher

func (*Cipher) DoAES256IGEdecrypt ¶ added in v1.7.0

func (c *Cipher) DoAES256IGEdecrypt(in, out []byte) error

func (*Cipher) DoAES256IGEencrypt ¶ added in v1.7.0

func (c *Cipher) DoAES256IGEencrypt(in, out []byte) error

type ModPow ¶

type ModPow struct {
	Salt1 []byte
	Salt2 []byte
	G     int32
	P     []byte
}

type SrpAnswer ¶

type SrpAnswer struct {
	GA []byte
	M1 []byte
}

func GetInputCheckPassword ¶

func GetInputCheckPassword(password string, srpB []byte, mp *ModPow, random []byte) (*SrpAnswer, error)

Source Files ¶

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