VOL-1967 move api-server to separate repository
Change-Id: I21b85be74205805be15f8a85e53a903d16785671
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)
+}