diff options
Diffstat (limited to 'src/challenge.h')
| -rw-r--r-- | src/challenge.h | 41 |
1 files changed, 34 insertions, 7 deletions
diff --git a/src/challenge.h b/src/challenge.h index 18495cf..203e420 100644 --- a/src/challenge.h +++ b/src/challenge.h @@ -46,23 +46,50 @@ #ifndef CHALLENGE_H #define CHALLENGE_H 1 +#include "pconfig.h" + #include <stdint.h> +#ifdef ENABLE_SHA512 +#include <openssl/sha.h> +#endif -/** challenge_t: This structure contains the pseudo-random challenge used for - * authentication. - */ -typedef struct challenge_t { +#define HT_MD5 0x1 +#define HT_SHA512 0x2 + + +typedef struct challenge_plain_t { /** tv_sec as returned by gettimeofday */ uint32_t sec; /** tv_usec as returned by gettimeofday + random value */ uint32_t usec_rnd; /** random values */ uint32_t random[6]; +} __attribute__ ((packed)) challenge_plain_t; + +typedef struct challenge_digest_t { + uint8_t hash_type; + union { + unsigned char md5[kMD5_digest_size]; + unsigned char sha512[kSHA512_digest_size]; + }; +} __attribute__ ((packed)) challenge_digest_t; + +/** challenge_t: This structure contains the pseudo-random challenge used for + * authentication. If OpenSSL is available SHA512 will be used per default. + */ +typedef struct challenge_t { + challenge_plain_t plain; + challenge_digest_t digest; } __attribute__ ((packed)) challenge_t; +challenge_t *generate_challenge(void); + +void generate_response_md5(challenge_plain_t *plain, challenge_digest_t *digest); +int validate_challenge_md5(challenge_t *local, challenge_digest_t *remote); -challenge_t* generate_challenge(void); -void generate_response(challenge_t *challenge); -int validate_challenge(challenge_t *local, challenge_t *remote); +#ifdef ENABLE_SHA512 +void generate_response_sha512(challenge_plain_t *plain, challenge_digest_t *digest); +int validate_challenge_sha512(challenge_t *local, challenge_digest_t *remote); +#endif #endif |