0, NULL
};
-uint8_t rsa_encrypt_oaep(void* dest, uint16_t* out_length,
- const void* src, uint16_t length_B,
- rsa_publickey_t* key, const rsa_oaep_parameter_t *p,
- const rsa_label_t* label, const void* seed){
+uint8_t rsa_encrypt_oaep(void *dest, uint16_t *out_length,
+ const void *src, uint16_t length_B,
+ rsa_publickey_t *key, const rsa_oaep_parameter_t *p,
+ const rsa_label_t *label, const void *seed){
if(!p){
p = &rsa_oaep_default_parameter;
label = &rsa_oaep_default_label;
}
uint16_t hv_len = (hfal_hash_getHashsize(p->hf)+7)/8;
- if(length_B > bigint_length_B(key->modulus) - 2*hv_len - 2){
+ if(length_B > bigint_length_B(&key->modulus) - 2*hv_len - 2){
/* message too long */
return 1;
}
- uint16_t buffer_len = bigint_length_B(key->modulus);
+ uint16_t buffer_len = bigint_length_B(&key->modulus);
#if DEBUG
cli_putstr("\r\n buffer_len = ");
cli_hexdump_rev(&buffer_len, 2);
cli_putstr("\r\n modulus_len = ");
- cli_hexdump_rev(&key->modulus->length_B, 2);
+ cli_hexdump_rev(&key->modulus.length_W, 2);
#endif
- uint8_t* buffer = (uint8_t*)dest;
+ uint8_t *buffer = (uint8_t*)dest;
uint8_t off;
/* the following needs some explanation:
* off is the offset which is used for compensating the effect of
* changeendian() when it operates on multi-byte words.
* */
- off = (sizeof(bigint_word_t) - (bigint_get_first_set_bit(key->modulus)/8+1) % sizeof(bigint_word_t))
+ off = (sizeof(bigint_word_t) - (bigint_get_first_set_bit(&key->modulus)/8+1) % sizeof(bigint_word_t))
% (sizeof(bigint_word_t));
buffer += off;
buffer_len -= off;
- uint8_t* seed_buffer = buffer + 1;
+ uint8_t *seed_buffer = buffer + 1;
uint16_t db_len = buffer_len - hv_len - 1;
- uint8_t* db = seed_buffer + hv_len;
+ uint8_t *db = seed_buffer + hv_len;
uint16_t maskbuffer_len = db_len>hv_len?db_len:hv_len;
uint8_t maskbuffer[maskbuffer_len];
bigint_t x;
}
#if DEBUG
cli_putstr("\r\n msg (raw, pre-feistel):\r\n");
- cli_hexdump_block(dest, bigint_length_B(key->modulus), 4, 16);
+ cli_hexdump_block(dest, bigint_length_B(&key->modulus), 4, 16);
#endif
p->mgf(maskbuffer, seed_buffer, hv_len, db_len, p->mgf_parameter);
memxor(db, maskbuffer, db_len);
memxor(seed_buffer, maskbuffer, hv_len);
#if DEBUG
cli_putstr("\r\n msg (raw, post-feistel):\r\n");
- cli_hexdump_block(dest, bigint_length_B(key->modulus), 4, 16);
+ cli_hexdump_block(dest, bigint_length_B(&key->modulus), 4, 16);
#endif
x.info = 0;
- x.length_B = key->modulus->length_B;
+ x.length_W = key->modulus.length_W;
x.wordv = dest;
bigint_adjust(&x);
- rsa_os2ip(&x, NULL, bigint_length_B(key->modulus));
+ rsa_os2ip(&x, NULL, bigint_length_B(&key->modulus));
#if DEBUG
cli_putstr("\r\ninput-msg (pre enc):\r\n");
cli_hexdump_rev(&src, 2);
return 0;
}
-uint8_t rsa_decrypt_oaep(void* dest, uint16_t* out_length,
- const void* src, uint16_t length_B,
- rsa_privatekey_t* key, const rsa_oaep_parameter_t *p,
- const rsa_label_t* label, void* seed){
+uint8_t rsa_decrypt_oaep(void *dest, uint16_t *out_length,
+ const void *src, uint16_t length_B,
+ rsa_privatekey_t *key, const rsa_oaep_parameter_t *p,
+ const rsa_label_t *label, void *seed){
// cli_putstr("\r\n -->rsa_decrypt_oaep()"); uart_flush(0);
if(!label){
bigint_t x;
uint16_t hv_len = hfal_hash_getHashsize(p->hf)/8;
uint8_t label_hv[hv_len];
- uint16_t msg_len = bigint_get_first_set_bit(key->modulus) / 8 + 1;
+ uint16_t msg_len = bigint_get_first_set_bit(&key->modulus) / 8 + 1;
uint16_t db_len = msg_len - hv_len - 1;
uint8_t maskbuffer[db_len>hv_len?db_len:hv_len];
uint8_t *seed_buffer = dest;
uint8_t *db_buffer = seed_buffer + hv_len;
- x_len = bigint_get_first_set_bit(key->modulus)/8;
- memset(dest, 0, bigint_length_B(key->modulus) - length_B);
- memcpy((uint8_t*)dest + bigint_length_B(key->modulus) - length_B, src, length_B);
+ x_len = bigint_get_first_set_bit(&key->modulus)/8;
+ memset(dest, 0, bigint_length_B(&key->modulus) - length_B);
+ memcpy((uint8_t*)dest + bigint_length_B(&key->modulus) - length_B, src, length_B);
// cli_putc('a'); uart_flush(0);
x.wordv = dest;
- x.length_B = key->modulus->length_B;
+ x.length_W = key->modulus.length_W;
x.info = 0;
bigint_adjust(&x);
// cli_putc('b'); uart_flush(0);
- rsa_os2ip(&x, NULL, bigint_length_B(key->modulus));
+ rsa_os2ip(&x, NULL, bigint_length_B(&key->modulus));
#if DEBUG
cli_putstr_P(PSTR("\r\n rsa decrypting ..."));
#endif