diff options
Diffstat (limited to 'src/key_derivation.h')
| -rw-r--r-- | src/key_derivation.h | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/src/key_derivation.h b/src/key_derivation.h index 6e1a1e3..21f069d 100644 --- a/src/key_derivation.h +++ b/src/key_derivation.h @@ -37,6 +37,7 @@ #include <gcrypt.h> +#define KD_LABEL_COUNT 3 enum satp_prf_label_enum { LABEL_SATP_ENCRYPTION = 0x00, LABEL_SATP_MSG_AUTH = 0x01, @@ -44,27 +45,29 @@ enum satp_prf_label_enum { }; typedef enum satp_prf_label_enum satp_prf_label_t; -enum key_derivation_type_enum { unknown, null, aes_ctr }; +enum key_derivation_type_enum { kd_unknown, kd_null, kd_aes_ctr }; typedef enum key_derivation_type_enum key_derivation_type_t; struct key_derivation_struct { key_derivation_type_t type_; int8_t ld_kdr_; + u_int16_t key_length_; buffer_t master_key_; buffer_t master_salt_; gcry_cipher_hd_t handle_; + buffer_t key_store_[KD_LABEL_COUNT]; }; typedef struct key_derivation_struct key_derivation_t; -int key_derivation_init(key_derivation_t* kd, const char* type, u_int8_t* key, u_int32_t key_len, u_int8_t* salt, u_int32_t salt_len); +int key_derivation_init(key_derivation_t* kd, const char* type, int8_t ld_kdr, u_int8_t* key, u_int32_t key_len, u_int8_t* salt, u_int32_t salt_len); void key_derivation_close(key_derivation_t* kd); -void key_derivation_generate(key_derivation_t* kd, satp_prf_label_t label, seq_nr_t seq_nr, u_int8_t* key, u_int32_t len); +int key_derivation_generate(key_derivation_t* kd, satp_prf_label_t label, seq_nr_t seq_nr, u_int8_t* key, u_int32_t len); -void key_derivation_null_generate(u_int8_t* key, u_int32_t len); +int key_derivation_null_generate(u_int8_t* key, u_int32_t len); -int key_derivation_aesctr_init(key_derivation_t* kd, u_int8_t* key, u_int32_t key_len, u_int8_t* salt, u_int32_t salt_len); +int key_derivation_aesctr_init(key_derivation_t* kd, u_int16_t key_length); void key_derivation_aesctr_close(key_derivation_t* kd); -buffer_t key_derivation_aesctr_calc_ctr(key_derivation_t* kd, satp_prf_label_t label, seq_nr_t seq_nr); -void key_derivation_aesctr_generate(key_derivation_t* kd, satp_prf_label_t label, seq_nr_t seq_nr, u_int8_t* key, u_int32_t len); +int key_derivation_aesctr_calc_ctr(key_derivation_t* kd, buffer_t* result, satp_prf_label_t label, seq_nr_t seq_nr); +int key_derivation_aesctr_generate(key_derivation_t* kd, satp_prf_label_t label, seq_nr_t seq_nr, u_int8_t* key, u_int32_t len); #endif |