diff --git a/vendor/gopkg.in/jcmturner/gokrb5.v7/crypto/aes128-cts-hmac-sha1-96.go b/vendor/gopkg.in/jcmturner/gokrb5.v7/crypto/aes128-cts-hmac-sha1-96.go
new file mode 100644
index 0000000..90b5df0
--- /dev/null
+++ b/vendor/gopkg.in/jcmturner/gokrb5.v7/crypto/aes128-cts-hmac-sha1-96.go
@@ -0,0 +1,173 @@
+package crypto
+
+import (
+	"crypto/aes"
+	"crypto/hmac"
+	"crypto/sha1"
+	"hash"
+
+	"gopkg.in/jcmturner/gokrb5.v7/crypto/common"
+	"gopkg.in/jcmturner/gokrb5.v7/crypto/rfc3961"
+	"gopkg.in/jcmturner/gokrb5.v7/crypto/rfc3962"
+	"gopkg.in/jcmturner/gokrb5.v7/iana/chksumtype"
+	"gopkg.in/jcmturner/gokrb5.v7/iana/etypeID"
+)
+
+// RFC 3962
+//+--------------------------------------------------------------------+
+//|               protocol key format        128- or 256-bit string    |
+//|                                                                    |
+//|            string-to-key function        PBKDF2+DK with variable   |
+//|                                          iteration count (see      |
+//|                                          above)                    |
+//|                                                                    |
+//|  default string-to-key parameters        00 00 10 00               |
+//|                                                                    |
+//|        key-generation seed length        key size                  |
+//|                                                                    |
+//|            random-to-key function        identity function         |
+//|                                                                    |
+//|                  hash function, H        SHA-1                     |
+//|                                                                    |
+//|               HMAC output size, h        12 octets (96 bits)       |
+//|                                                                    |
+//|             message block size, m        1 octet                   |
+//|                                                                    |
+//|  encryption/decryption functions,        AES in CBC-CTS mode       |
+//|  E and D                                 (cipher block size 16     |
+//|                                          octets), with next-to-    |
+//|                                          last block (last block    |
+//|                                          if only one) as CBC-style |
+//|                                          ivec                      |
+//+--------------------------------------------------------------------+
+//
+//+--------------------------------------------------------------------+
+//|                         encryption types                           |
+//+--------------------------------------------------------------------+
+//|         type name                  etype value          key size   |
+//+--------------------------------------------------------------------+
+//|   aes128-cts-hmac-sha1-96              17                 128      |
+//|   aes256-cts-hmac-sha1-96              18                 256      |
+//+--------------------------------------------------------------------+
+//
+//+--------------------------------------------------------------------+
+//|                          checksum types                            |
+//+--------------------------------------------------------------------+
+//|        type name                 sumtype value           length    |
+//+--------------------------------------------------------------------+
+//|    hmac-sha1-96-aes128                15                   96      |
+//|    hmac-sha1-96-aes256                16                   96      |
+//+--------------------------------------------------------------------+
+
+// Aes128CtsHmacSha96 implements Kerberos encryption type aes128-cts-hmac-sha1-96
+type Aes128CtsHmacSha96 struct {
+}
+
+// GetETypeID returns the EType ID number.
+func (e Aes128CtsHmacSha96) GetETypeID() int32 {
+	return etypeID.AES128_CTS_HMAC_SHA1_96
+}
+
+// GetHashID returns the checksum type ID number.
+func (e Aes128CtsHmacSha96) GetHashID() int32 {
+	return chksumtype.HMAC_SHA1_96_AES128
+}
+
+// GetKeyByteSize returns the number of bytes for key of this etype.
+func (e Aes128CtsHmacSha96) GetKeyByteSize() int {
+	return 128 / 8
+}
+
+// GetKeySeedBitLength returns the number of bits for the seed for key generation.
+func (e Aes128CtsHmacSha96) GetKeySeedBitLength() int {
+	return e.GetKeyByteSize() * 8
+}
+
+// GetHashFunc returns the hash function for this etype.
+func (e Aes128CtsHmacSha96) GetHashFunc() func() hash.Hash {
+	return sha1.New
+}
+
+// GetMessageBlockByteSize returns the block size for the etype's messages.
+func (e Aes128CtsHmacSha96) GetMessageBlockByteSize() int {
+	return 1
+}
+
+// GetDefaultStringToKeyParams returns the default key derivation parameters in string form.
+func (e Aes128CtsHmacSha96) GetDefaultStringToKeyParams() string {
+	return "00001000"
+}
+
+// GetConfounderByteSize returns the byte count for confounder to be used during cryptographic operations.
+func (e Aes128CtsHmacSha96) GetConfounderByteSize() int {
+	return aes.BlockSize
+}
+
+// GetHMACBitLength returns the bit count size of the integrity hash.
+func (e Aes128CtsHmacSha96) GetHMACBitLength() int {
+	return 96
+}
+
+// GetCypherBlockBitLength returns the bit count size of the cypher block.
+func (e Aes128CtsHmacSha96) GetCypherBlockBitLength() int {
+	return aes.BlockSize * 8
+}
+
+// StringToKey returns a key derived from the string provided.
+func (e Aes128CtsHmacSha96) StringToKey(secret string, salt string, s2kparams string) ([]byte, error) {
+	return rfc3962.StringToKey(secret, salt, s2kparams, e)
+}
+
+// RandomToKey returns a key from the bytes provided.
+func (e Aes128CtsHmacSha96) RandomToKey(b []byte) []byte {
+	return rfc3961.RandomToKey(b)
+}
+
+// EncryptData encrypts the data provided.
+func (e Aes128CtsHmacSha96) EncryptData(key, data []byte) ([]byte, []byte, error) {
+	return rfc3962.EncryptData(key, data, e)
+}
+
+// EncryptMessage encrypts the message provided and concatenates it with the integrity hash to create an encrypted message.
+func (e Aes128CtsHmacSha96) EncryptMessage(key, message []byte, usage uint32) ([]byte, []byte, error) {
+	return rfc3962.EncryptMessage(key, message, usage, e)
+}
+
+// DecryptData decrypts the data provided.
+func (e Aes128CtsHmacSha96) DecryptData(key, data []byte) ([]byte, error) {
+	return rfc3962.DecryptData(key, data, e)
+}
+
+// DecryptMessage decrypts the message provided and verifies the integrity of the message.
+func (e Aes128CtsHmacSha96) DecryptMessage(key, ciphertext []byte, usage uint32) ([]byte, error) {
+	return rfc3962.DecryptMessage(key, ciphertext, usage, e)
+}
+
+// DeriveKey derives a key from the protocol key based on the usage value.
+func (e Aes128CtsHmacSha96) DeriveKey(protocolKey, usage []byte) ([]byte, error) {
+	return rfc3961.DeriveKey(protocolKey, usage, e)
+}
+
+// DeriveRandom generates data needed for key generation.
+func (e Aes128CtsHmacSha96) DeriveRandom(protocolKey, usage []byte) ([]byte, error) {
+	return rfc3961.DeriveRandom(protocolKey, usage, e)
+}
+
+// VerifyIntegrity checks the integrity of the plaintext message.
+func (e Aes128CtsHmacSha96) VerifyIntegrity(protocolKey, ct, pt []byte, usage uint32) bool {
+	return rfc3961.VerifyIntegrity(protocolKey, ct, pt, usage, e)
+}
+
+// GetChecksumHash returns a keyed checksum hash of the bytes provided.
+func (e Aes128CtsHmacSha96) GetChecksumHash(protocolKey, data []byte, usage uint32) ([]byte, error) {
+	return common.GetHash(data, protocolKey, common.GetUsageKc(usage), e)
+}
+
+// VerifyChecksum compares the checksum of the message bytes is the same as the checksum provided.
+func (e Aes128CtsHmacSha96) VerifyChecksum(protocolKey, data, chksum []byte, usage uint32) bool {
+	c, err := e.GetChecksumHash(protocolKey, data, usage)
+	if err != nil {
+		return false
+	}
+	return hmac.Equal(chksum, c)
+}