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added some TODOs

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wangyu- 2018-02-18 21:17:38 -06:00
parent 2be65585a0
commit 7142dd018d
2 changed files with 26 additions and 24 deletions
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47
encrypt.cpp
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@ -17,23 +17,13 @@ static int8_t zero_iv[]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0};//this prog
****/ ****/
char key[16];//generated from key_string by md5. char key[16];//generated from key_string by md5.
/* //TODO key derive function
TODO
Change md5 to HMAC-md5 if necessary.Change padding to PKCS#7 style if necessary.
Need someone with cryptography knowledge to help review the encryption method.
Change them if necessary(I can do this by myself,if it turns out to be necessary).
github issue:
https://github.com/wangyu-/udp2raw-tunnel/issues/17
*/
unordered_map<int, const char *> auth_mode_tostring = {{auth_none, "none"}, {auth_md5, "md5"}, {auth_crc32, "crc32"},{auth_simple,"simple"}}; unordered_map<int, const char *> auth_mode_tostring = {{auth_none, "none"}, {auth_md5, "md5"}, {auth_crc32, "crc32"},{auth_simple,"simple"}};
//TODO HMAC-md5 ,HMAC-sha1
unordered_map<int, const char *> cipher_mode_tostring={{cipher_none,"none"},{cipher_aes128cbc,"aes128cbc"},{cipher_xor,"xor"}}; unordered_map<int, const char *> cipher_mode_tostring={{cipher_none,"none"},{cipher_aes128cbc,"aes128cbc"},{cipher_xor,"xor"}};
//TODO aes-gcm
auth_mode_t auth_mode=auth_md5; auth_mode_t auth_mode=auth_md5;
cipher_mode_t cipher_mode=cipher_aes128cbc; cipher_mode_t cipher_mode=cipher_aes128cbc;
@ -356,13 +346,28 @@ int my_decrypt(const char *data,char *output,int &len,char * key)
return 0; return 0;
} }
int my_encrypt_pesudo_header(uint8_t *data,uint8_t *output,int &len,uint8_t * key,uint8_t *header,int hlen) int encrypt_AE(const char *data,char *output,int &len,char * key)
{ {
//TODO
return 0; //use encrypt-then-MAC scheme
} return -1;
int my_decrypt_pesudo_header(uint8_t *data,uint8_t *output,int &len,uint8_t * key,uint8_t *header,int hlen) }
{
return 0; int decrypt_AE(const char *data,char *output,int &len,char * key)
{
//TODO
return -1;
}
int encrypt_AEAD(uint8_t *data,uint8_t *output,int &len,uint8_t * key,uint8_t *header,int hlen)
{
//TODO
return -1;
}
int decrypt_AEAD(uint8_t *data,uint8_t *output,int &len,uint8_t * key,uint8_t *header,int hlen)
{
//TODO
return -1;
} }

3
encrypt.h
View File

@ -17,9 +17,6 @@ extern char key[16];
int my_encrypt(const char *data,char *output,int &len,char * key); int my_encrypt(const char *data,char *output,int &len,char * key);
int my_decrypt(const char *data,char *output,int &len,char * key); int my_decrypt(const char *data,char *output,int &len,char * key);
int my_encrypt_pesudo_header(uint8_t *data,uint8_t *output,int &len,uint8_t * key,uint8_t *header,int hlen);
int my_decrypt_pesudo_header(uint8_t *data,uint8_t *output,int &len,uint8_t * key,uint8_t *header,int hlen);
unsigned short csum(const unsigned short *ptr,int nbytes) ; unsigned short csum(const unsigned short *ptr,int nbytes) ;