Documentation
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Overview ¶
Package xtea implements XTEA encryption, as defined in Needham and Wheeler's 1997 technical report, "Tea extensions."
XTEA is a legacy cipher and its short block size makes it vulnerable to birthday bound attacks (see https://sweet32.info). It should only be used where compatibility with legacy systems, not security, is the goal.
Deprecated: any new system should use AES (from crypto/aes, if necessary in an AEAD mode like crypto/cipher.NewGCM) or XChaCha20-Poly1305 (from golang.org/x/crypto/chacha20poly1305).
Index ¶
Constants ¶
const BlockSize = 8
The XTEA block size in bytes.
Variables ¶
This section is empty.
Functions ¶
This section is empty.
Types ¶
type Cipher ¶
type Cipher struct {
// contains filtered or unexported fields
}
A Cipher is an instance of an XTEA cipher using a particular key.
func NewCipher ¶
NewCipher creates and returns a new Cipher. The key argument should be the XTEA key. XTEA only supports 128 bit (16 byte) keys.
func (*Cipher) BlockSize ¶
BlockSize returns the XTEA block size, 8 bytes. It is necessary to satisfy the Block interface in the package "crypto/cipher".
func (*Cipher) Decrypt ¶
Decrypt decrypts the 8 byte buffer src using the key and stores the result in dst.
type KeySizeError ¶
type KeySizeError int
func (KeySizeError) Error ¶
func (k KeySizeError) Error() string
Source Files