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Remove useless comments.

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This commit is contained in:
Alexander Andreev 2024-03-24 14:08:13 +04:00
parent b04fbeb34e
commit 842659e879
Signed by: Arav
GPG Key ID: 25969B23DCB5CA34
1 changed files with 0 additions and 23 deletions
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src/crypt.h
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@ -22,7 +22,6 @@
#define CRYPT_PKEY_HEXLEN ((CRYPT_KX_PKEY_LEN + CRYPT_SIGN_PKEY_LEN) * 2) #define CRYPT_PKEY_HEXLEN ((CRYPT_KX_PKEY_LEN + CRYPT_SIGN_PKEY_LEN) * 2)
#define CRYPT_SKEY_HEXLEN ((CRYPT_SIGN_PKEY_LEN + CRYPT_SIGN_SKEY_LEN) * 2) #define CRYPT_SKEY_HEXLEN ((CRYPT_SIGN_PKEY_LEN + CRYPT_SIGN_SKEY_LEN) * 2)
// Stores the public and secret keys used in a key exchange and for signing.
typedef struct crypt_key_t { typedef struct crypt_key_t {
unsigned char kx_pub[crypto_kx_PUBLICKEYBYTES]; unsigned char kx_pub[crypto_kx_PUBLICKEYBYTES];
unsigned char kx_sec[crypto_kx_SECRETKEYBYTES]; unsigned char kx_sec[crypto_kx_SECRETKEYBYTES];
@ -31,39 +30,21 @@ typedef struct crypt_key_t {
bool hasSecKey; bool hasSecKey;
} crypt_key_t; } crypt_key_t;
// Generates the new pairs of a key exchange and sign keys.
int crypt_key_gen(crypt_key_t *const k); int crypt_key_gen(crypt_key_t *const k);
// Initialise a crypt_key_t with a provided hex representaions of public and secret keys.
int crypt_key_from_hex(crypt_key_t *const k, const char phex[CRYPT_PKEY_HEXLEN], const char shex[CRYPT_SKEY_HEXLEN]); int crypt_key_from_hex(crypt_key_t *const k, const char phex[CRYPT_PKEY_HEXLEN], const char shex[CRYPT_SKEY_HEXLEN]);
// Initialise a crypt_key_t with a provided hex representaion of just a public key. Used for remote keys.
int crypt_key_from_hex_public(crypt_key_t *const k, const char phex[CRYPT_PKEY_HEXLEN]); int crypt_key_from_hex_public(crypt_key_t *const k, const char phex[CRYPT_PKEY_HEXLEN]);
// Securely erase the fields of a crypt_key_t struct.
void crypt_key_destroy(crypt_key_t *const k); void crypt_key_destroy(crypt_key_t *const k);
// Export a public sign and key exchange keys as a hex string.
int crypt_key_export_public(const crypt_key_t *const k, char hex[CRYPT_PKEY_HEXLEN]); int crypt_key_export_public(const crypt_key_t *const k, char hex[CRYPT_PKEY_HEXLEN]);
// Export a secret sign and key exchange keys as a hex string.
int crypt_key_export_secret(const crypt_key_t *const k, char hex[CRYPT_SKEY_HEXLEN]); int crypt_key_export_secret(const crypt_key_t *const k, char hex[CRYPT_SKEY_HEXLEN]);
// Load the sign and key exchange keys in a hex representaion from files
// and initialise a crypt_key_t.
int crypt_load_key(crypt_key_t *const k, FILE *const pub, FILE *const sec); int crypt_load_key(crypt_key_t *const k, FILE *const pub, FILE *const sec);
// Store a hex representaion of the sign and key exchange keys into files
// that are corresponding to a public and a secret parts.
int crypt_store_key(const crypt_key_t *const k, FILE *const pub, FILE *const sec); int crypt_store_key(const crypt_key_t *const k, FILE *const pub, FILE *const sec);
// Returns a hello packet consisting of a public key and its sign.
// The packet is of CRYPT_SIGN_LEN long.
unsigned char *crypt_hello(const crypt_key_t *const own); unsigned char *crypt_hello(const crypt_key_t *const own);
// Verify a hello message. It only shows that a remote public key's sign is ok.
int crypt_hello_verify(const unsigned char *const hello, crypt_key_t *const remote); int crypt_hello_verify(const unsigned char *const hello, crypt_key_t *const remote);
// Combines own and remote halves of a nonce depending in a connection direction and returns it.
// It will be of CRYPT_NONCE_LEN length.
unsigned char *crypt_hello_get_nonce(const unsigned char *const own_hello, const unsigned char *const remote_hello, bool is_client); unsigned char *crypt_hello_get_nonce(const unsigned char *const own_hello, const unsigned char *const remote_hello, bool is_client);
// Stores symmetric keys used for a data encryption in both directions
// and a remote public key.
typedef struct crypt_session_t { typedef struct crypt_session_t {
unsigned char rx[CRYPT_SESS_KEY_LEN]; unsigned char rx[CRYPT_SESS_KEY_LEN];
unsigned char tx[CRYPT_SESS_KEY_LEN]; unsigned char tx[CRYPT_SESS_KEY_LEN];
@ -71,13 +52,9 @@ typedef struct crypt_session_t {
crypt_key_t *remote_key; crypt_key_t *remote_key;
} crypt_session_t; } crypt_session_t;
// Derives the symmetric keys for a data encryption using own public and secret and remote's public keys.
//
// is_client should be set to true if you are the one establishing the connection.
int crypt_session_init(crypt_session_t *const s, const crypt_key_t *const own, crypt_key_t *const remote, const unsigned char *const nonce, bool is_client); int crypt_session_init(crypt_session_t *const s, const crypt_key_t *const own, crypt_key_t *const remote, const unsigned char *const nonce, bool is_client);
unsigned char *crypt_session_encrypt(crypt_session_t *const s, const unsigned char *const m, unsigned long long mlen, unsigned long long *clen); unsigned char *crypt_session_encrypt(crypt_session_t *const s, const unsigned char *const m, unsigned long long mlen, unsigned long long *clen);
unsigned char *crypt_session_decrypt(crypt_session_t *const s, const unsigned char *const c, unsigned long long clen, unsigned long long *mlen); unsigned char *crypt_session_decrypt(crypt_session_t *const s, const unsigned char *const c, unsigned long long clen, unsigned long long *mlen);
// Securely erase the fields of a crypt_session_t struct.
void crypt_session_destroy(crypt_session_t *const s); void crypt_session_destroy(crypt_session_t *const s);
#endif /* _CRYPT_H_ */ #endif /* _CRYPT_H_ */