Merge pull request #3 from alexchas/master

Add call wrapper sidh16 algorithm

crypto/dap_enc_sidh16.c

+#include <stdlib.h>
+#include <stdio.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <string.h>
+#include <stdbool.h>
+
+#include "dap_common.h"
+#include "dap_enc_sidh16.h"
+#include "dap_enc_key.h"
+
+#include "liboqs/kex/kex.h"
+#include "liboqs/crypto/rand/rand.h"
+#include "liboqs/kex_sidh_cln16/kex_sidh_cln16.h"
+
+OQS_KEX *k = NULL;
+int gen;
+
+void *alignce_priv = NULL;
+uint8_t *alice_msg = NULL;
+size_t alice_msg_len;
+uint8_t *alice_key = NULL;
+size_t alice_key_len;
+
+uint8_t *bob_msg = NULL;
+size_t bob_msg_len;
+uint8_t *bob_key = NULL;
+size_t bob_key_len;
+
+
+struct  dap_enc_param{
+    enum OQS_KEX_alg_name alg_name;
+    char *named_parameters;
+    char *id;
+};
+
+typedef struct dap_enc_sidh16_key{
+} dap_enc_sidh16_key_t;
+
+
+#define PRINT_HEX_STRING(label, str, len)                        \
+    {   size_t i;                                                \
+        printf("%-20s (%4zu bytes):  ", (label), (size_t)(len)); \
+        for (i = 0; i < (len); i++) {                            \
+         printf("%02X", ((unsigned char *) (str))[i]);           \
+        }                                                        \
+        printf("\n");                                            \
+    }
+
+int dap_enc_sidh16_key_new_generate(OQS_RAND *rand, const char *named_parameters) {
+
+    k = OQS_KEX_sidh_cln16_new(rand, named_parameters);
+    if(k == NULL) {
+        printf("новая пара не сгенерирована \n");
+        gen = 0;
+    }
+        printf("расчёт для обмена ключами методом  %s\n", k->method_name);
+}
+    /* Alice's initial message */
+size_t dap_enc_sidh16_encode(OQS_KEX *k, void **alice_priv, uint8_t **alice_msg, size_t *alice_msg_len) {
+    gen = OQS_KEX_sidh_cln16_alice_0(k, &alice_priv, &alice_msg, &alice_msg_len);
+    if(gen != 1) {
+        printf("OQS_KEX_sidh_cln16_alice_0 lose..\n");
+        gen = 0;
+    }
+    PRINT_HEX_STRING("Alice message", alice_msg, alice_msg_len);
+}
+
+    /* Bob's response */
+size_t dap_enc_sidh16_decode(OQS_KEX *k, const uint8_t *alice_msg, const size_t alice_msg_len, uint8_t **bob_msg, size_t *bob_msg_len, uint8_t **bob_key, size_t *bob_key_len) {
+    gen = OQS_KEX_sidh_cln16_bob(k, alice_msg, alice_msg_len, &bob_msg, &bob_msg_len, &bob_key, &bob_key_len);
+    if(gen != 1){
+        printf("OQS_KEX_sidh_cln16_bob lose..\n");
+        gen = 0;
+    }
+    PRINT_HEX_STRING("Bob message", bob_msg, bob_msg_len);
+    PRINT_HEX_STRING("Bob session key", bob_key, bob_key_len);
+}
+
+    /* Alice processes Bob's response */
+void dap_enc_sidh16_key_new_from_data(OQS_KEX *k, const void *alice_priv, const uint8_t *bob_msg, const size_t bob_msg_len, uint8_t **key, size_t *key_len) {
+    gen = OQS_KEX_sidh_cln16_alice_1(k, alice_priv, bob_msg, bob_msg_len, &alice_key, &alice_key_len);
+    if(gen != 1) {
+        printf("OQS_KEX_sidh_cln16_alice_1 lose..\n");
+        gen = 0;
+    }
+    PRINT_HEX_STRING("Alice session key", alice_key, alice_key_len)
+
+
+    /*compare session key lengths and values*/
+    if(alice_key_len != bob_key_len) {
+        printf("ERROR: Alice's session key and Bob's session key are different lengths (%zu vs %zu)\n", alice_key_len, bob_key_len);
+        gen = 0;
+    }
+    gen = memcmp(alice_key, bob_key, alice_key_len);
+    if(gen != 0){
+        printf("ERROR: Alice's session key and Bob's session key are not equal\n");
+        PRINT_HEX_STRING("Alice session key", alice_key, alice_key_len);
+        PRINT_HEX_STRING("Bob session key", bob_key, bob_key_len);
+
+        // здесь сделать запись ключа в файл
+
+        gen = 0;
+    }
+     printf("Alice and Bob's session keys match.\n");
+     printf("\n\n");
+
+    gen = 1;
+}
+
+void dap_enc_sidh16_key_delete() {
+    free(alice_msg);
+    free(alice_key);
+    free(bob_msg);
+    free(bob_key);
+    OQS_KEX_sidh_cln16_alice_priv_free(k, alignce_priv);
+    OQS_KEX_sidh_cln16_free(k);
+}
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crypto/dap_enc_sidh16.h

+#ifndef _DAP_ENC_SIDH16_H_
+#define _DAP_ENC_SIDH16_H_
+
+#include <stddef.h>
+#include "liboqs/kex/kex.h"
+#include "liboqs/crypto/rand/rand.h"
+
+struct dap_enc_key;
+
+// OQS_KEX_sidh_cln16_new
+int dap_enc_sidh16_key_new_generate(OQS_RAND *rand, const char *named_parameters);
+
+// OQS_KEX_sidh_cln16_alice_1
+void dap_enc_sidh16_key_new_from_data(OQS_KEX *k, const void *alice_priv, const uint8_t *bob_msg, const size_t bob_msg_len, uint8_t **key, size_t *key_len);
+
+// OQS_KEX_sidh_cln16_alice_priv_free
+// OQS_KEX_sidh_cln16_free
+void dap_enc_sidh16_key_delete();
+
+// OQS_KEX_sidh_cln16_alice_0
+size_t dap_enc_sidh16_encode(OQS_KEX *k, void **alice_priv, uint8_t **alice_msg, size_t *alice_msg_len);
+
+// OQS_KEX_sidh_cln16_bob
+size_t dap_enc_sidh16_decode(OQS_KEX *k, const uint8_t *alice_msg, const size_t alice_msg_len, uint8_t **bob_msg, size_t *bob_msg_len, uint8_t **key, size_t *key_len);
+
+
+#endif