diff options
Diffstat (limited to 'examples')
| -rw-r--r-- | examples/Decrypt.c | 326 | ||||
| -rw-r--r-- | examples/Decrypt.rdbg | bin | 0 -> 1074 bytes |
2 files changed, 312 insertions, 14 deletions
diff --git a/examples/Decrypt.c b/examples/Decrypt.c index b496780..fe305cc 100644 --- a/examples/Decrypt.c +++ b/examples/Decrypt.c @@ -1,11 +1,26 @@ #include <matrix.h>
#include <stdio.h>
+#include <olm/sas.h>
+
#define SERVER "https://matrix.org"
-#define ACCESS_TOKEN "syt_cHNjaG8_yBvTjVTquGCikvsAenOJ_49mBMO"
-#define DEVICE_ID "MAZNCCZLBR"
-#define ROOM_ID "!koVStwyiiKcBVbXZYz:matrix.org"
-#define EVENT_ID ""
+#define USER_ID "@pscho:matrix.org"
+#define DEVICE_ID "ULZZOKJBYN"
+#define SENDER_KEY "LvVdoHsRRWNxRmG2GO2vky6o6S8RzADpPAaELsd1rjU"
+#define ROOM_ID "!XKFUjAsGrSSrpDFIxB:matrix.org"
+#define EVENT_ID "$_-y42DkC3OmJ_s40gYko7jMwrUQhoXfEut2pMV3E2J8"
+#define SESSION_ID "tzdnJbDrm82D/RpgkZKpILTifQ5Rads+tVzp3ax8+Ls"
+
+void
+GetLine(char * buffer, int n) {
+ int c;
+ int len = 0;
+
+ while ((c = getchar()) != '\n' && len < n-1)
+ buffer[len++] = c;
+
+ buffer[len] = '\0';
+}
int
main(void)
@@ -16,30 +31,313 @@ main(void) MatrixHttpInit(&client);
- MatrixClientSetAccessToken(&client,
- ACCESS_TOKEN);
+ MatrixClientSetUserId(&client, USER_ID);
+
+ MatrixClientLoginPassword(&client,
+ "pscho",
+ "Wc23EbmB9G3faMq",
+ "Test1");
+
+ printf("deviceId: %s\n", client.deviceId);
+
+ MatrixClientGenerateOnetimeKeys(&client, 10);
+ MatrixClientUploadOnetimeKeys(&client);
+ MatrixClientUploadDeviceKey(&client);
static char eventBuffer[1024];
MatrixClientGetRoomEvent(&client,
ROOM_ID,
EVENT_ID,
eventBuffer, 1024);
+
+ printf("event: %s\n", eventBuffer);
+
+ // verify
+ char theirDeviceKey[DEVICE_KEY_SIZE];
+ MatrixClientRequestDeviceKey(&client,
+ DEVICE_ID,
+ theirDeviceKey, DEVICE_KEY_SIZE);
+
+ char transactionId[256];
+ GetLine(transactionId, 128);
+
+ char verificationReadyBuffer[2048];
+ snprintf(verificationReadyBuffer, 2048,
+ "{"
+ "\"from_device\":\"%s\","
+ "\"methods\":[\"m.sas.v1\"],"
+ "\"transaction_id\":\"%s\""
+ "}",
+ client.deviceId,
+ transactionId);
+
+ MatrixClientSendToDevice(&client,
+ USER_ID,
+ DEVICE_ID,
+ verificationReadyBuffer,
+ "m.key.verification.ready");
+
+ OlmSAS * olmSas = olm_sas(malloc(olm_sas_size()));
+ void * sasRandomBytes = malloc(olm_create_sas_random_length(olmSas));
+ olm_create_sas(olmSas,
+ sasRandomBytes,
+ olm_create_sas_random_length(olmSas));
+
+ OlmUtility * olmUtil = olm_utility(malloc(olm_utility_size()));
+
+ char publicKey[128];
+ char keyStartJson[1024];
+ char concat[1024];
+ char commitment[256];
+ olm_sas_get_pubkey(olmSas,
+ publicKey,
+ 128);
+ GetLine(keyStartJson, 1024);
+ printf("keyStartJson: %s\n", keyStartJson);
+ int concatLen =
+ snprintf(concat, 1024, "%s%s", publicKey, keyStartJson);
+ printf("concat: %s\n", concat);
+ olm_sha256(olmUtil, concat, strlen(concat), commitment, 256);
+ printf("hash: %s\n", commitment);
+
+ char verificationAcceptBuffer[2048];
+ snprintf(verificationAcceptBuffer, 2048,
+ "{"
+ "\"commitment\":\"%s\","
+ "\"hash\":\"sha256\","
+ "\"key_agreement_protocol\":\"curve25519\","
+ "\"message_authentication_code\":\"hkdf-hmac-sha256.v2\","
+ "\"method\":\"m.sas.v1\","
+ "\"short_authentication_string\":[\"decimal\"],"
+ "\"transaction_id\":\"%s\""
+ "}",
+ commitment,
+ transactionId);
+
+ MatrixClientSendToDevice(&client,
+ USER_ID,
+ DEVICE_ID,
+ verificationAcceptBuffer,
+ "m.key.verification.accept");
+
+ char theirPublicKey[128];
+ GetLine(theirPublicKey, 128);
+ olm_sas_set_their_key(olmSas, theirPublicKey, strlen(theirPublicKey));
+
+ char verificationKeyBuffer[2048];
+ snprintf(verificationKeyBuffer, 2048,
+ "{"
+ "\"key\":\"%s\","
+ "\"transaction_id\":\"%s\""
+ "}",
+ publicKey,
+ transactionId);
+
+ MatrixClientSendToDevice(&client,
+ USER_ID,
+ DEVICE_ID,
+ verificationKeyBuffer,
+ "m.key.verification.key");
+
+ char hkdfInfo[1024];
+ int hkdfInfoLen =
+ snprintf(hkdfInfo, 1024,
+ "MATRIX_KEY_VERIFICATION_SAS%s%s%s%s%s",
+ USER_ID,
+ DEVICE_ID,
+ USER_ID,
+ client.deviceId,
+ transactionId);
+
+ unsigned char sasBytes[5];
+ olm_sas_generate_bytes(olmSas,
+ hkdfInfo, hkdfInfoLen,
+ sasBytes, 5);
+ int b0 = sasBytes[0];
+ int b1 = sasBytes[1];
+ int b2 = sasBytes[2];
+ int b3 = sasBytes[3];
+ int b4 = sasBytes[4];
+
+ printf("%d %d %d %d %d\n", b0, b1, b2, b3, b4);
+ // https://spec.matrix.org/v1.7/client-server-api/#sas-method-decimal
+ printf("%d | %d | %d\n",
+ (b0 << 5 | b1 >> 3) + 1000,
+ ((b1 & 0x7) << 10 | b2 << 2 | b3 >> 6) + 1000,
+ ((b3 & 0x3F) << 7 | b4 >> 1) + 1000);
+ printf("%d | %d | %d\n",
+ ((b0 << 5) | (b1 >> 3)) + 1000,
+ (((b1 & 0x7) << 10) | (b2 << 2) | (b3 >> 6)) + 1000,
+ (((b3 & 0x3F) << 7) | (b4 >> 1)) + 1000);
+
+ // mac
+ const char * masterKey = "vt8tJ5/SxqkvXS+XoGxr+4rJNe8fJfZT3/e/FTwlFsI";
+
+ char keyList[1024];
+ char keyListMac[1024];
+ char key1Id[1024];
+ char key1[1024];
+ char key1Mac[1024];
+ char key2Id[1024];
+ char key2[1024];
+ char key2Mac[1024];
+
+ if (strcmp(masterKey, client.deviceId) < 0) {
+ //strcpy(key1Id, masterKey);
+ snprintf(key1Id, 1024, "ed25519:%s", masterKey);
+ strcpy(key1, masterKey);
+ //strcpy(key2Id, client.deviceId);
+ snprintf(key2Id, 1024, "ed25519:%s", client.deviceId);
+ MatrixOlmAccountGetSigningKey(&client.olmAccount, key2, 1024);
+ }
+ else {
+ //strcpy(key1Id, client.deviceId);
+ snprintf(key1Id, 1024, "ed25519:%s", client.deviceId);
+ MatrixOlmAccountGetSigningKey(&client.olmAccount, key1, 1024);
+ //strcpy(key2Id, masterKey);
+ snprintf(key2Id, 1024, "ed25519:%s", masterKey);
+ strcpy(key2, masterKey);
+ }
+
+ snprintf(keyList, 1024,
+ "%s,%s", key1Id, key2Id);
+
+ char macInfo[1024];
+ int macInfoLen;
+ {
+ macInfoLen =
+ snprintf(macInfo, 1024,
+ "MATRIX_KEY_VERIFICATION_MAC%s%s%s%s%s%s",
+ USER_ID,
+ client.deviceId,
+ USER_ID,
+ DEVICE_ID,
+ transactionId,
+ "KEY_IDS");
+ olm_sas_calculate_mac_fixed_base64(olmSas, keyList, strlen(keyList), macInfo, macInfoLen, keyListMac, 1024);
+ }
+ {
+ macInfoLen =
+ snprintf(macInfo, 1024,
+ "MATRIX_KEY_VERIFICATION_MAC%s%s%s%s%s%s",
+ USER_ID,
+ client.deviceId,
+ USER_ID,
+ DEVICE_ID,
+ transactionId,
+ key1Id);
+ olm_sas_calculate_mac_fixed_base64(olmSas, key1, strlen(key1), macInfo, macInfoLen, key1Mac, 1024);
+ }
+ {
+ macInfoLen =
+ snprintf(macInfo, 1024,
+ "MATRIX_KEY_VERIFICATION_MAC%s%s%s%s%s%s",
+ USER_ID,
+ client.deviceId,
+ USER_ID,
+ DEVICE_ID,
+ transactionId,
+ key2Id);
+ olm_sas_calculate_mac_fixed_base64(olmSas, key2, strlen(key2), macInfo, macInfoLen, key2Mac, 1024);
+ }
+
+ printf("send mac:");
+ getchar();
+
+ char verificationMacBuffer[2048];
+ snprintf(verificationMacBuffer, 2048,
+ "{"
+ "\"keys\":\"%s\","
+ "\"mac\":{"
+ "\"%s\":\"%s\","
+ "\"%s\":\"%s\""
+ "},"
+ "\"transaction_id\":\"%s\""
+ "}",
+ keyListMac,
+ key1Id,
+ key1Mac,
+ key2Id,
+ key2Mac,
+ transactionId);
+
+ MatrixClientSendToDevice(&client,
+ USER_ID,
+ DEVICE_ID,
+ verificationMacBuffer,
+ "m.key.verification.mac");
+
+ printf("send done:");
+ getchar();
+
+ char verificationDoneBuffer[2048];
+ snprintf(verificationDoneBuffer, 2048,
+ "{"
+ "\"transaction_id\":\"%s\""
+ "}",
+ transactionId);
+
+ MatrixClientSendToDevice(&client,
+ USER_ID,
+ DEVICE_ID,
+ verificationDoneBuffer,
+ "m.key.verification.done");
+
+ // done
+
+ // request room key
+
+ getchar();
+
MatrixMegolmInSession megolmSession;
- MatrixClientRequestMegolmSession(&client,
+ MatrixClientRequestMegolmInSession(&client,
ROOM_ID,
- EVENT_ID,
+ SESSION_ID,
+ SENDER_KEY,
+ USER_ID,
+ DEVICE_ID,
&megolmSession);
- static char decryptedBuffer[1024];
- MatrixMegolmSessionDecrypt(&megolmSession,
- eventBuffer,
- decryptedBuffer, 1024);
+ // // decrypt room key
+
+ MatrixOlmSession * olmSession;
+ MatrixClientGetOlmSession(&client,
+ USER_ID,
+ DEVICE_ID,
+ &olmSession);
+ static char encrypted[2048];
+ static char decrypted[2048];
+ printf("encrypted:");
+ gets(encrypted);
+ printf("(%d) %s;\n", strlen(encrypted), encrypted);
+ MatrixOlmSessionDecrypt(olmSession,
+ 1, encrypted, decrypted, 2048);
+ printf("decrypted: %s\n", decrypted);
+
+ // int c;
+ // while ((c = getchar()) != 'q') {
+ // printf("c: %c (%d)\n", c, c);
+ // static char syncBuffer[40000];
+ // MatrixClientSync(&client,
+ // syncBuffer, 40000);
+ // printf("sync: %s", syncBuffer);
+ // }
+
+
+ // static char decryptedBuffer[1024];
+ // MatrixMegolmInSessionDecrypt(&megolmSession,
+ // eventBuffer,
+ // decryptedBuffer, 1024);
+
+ // printf("%s\n", decryptedBuffer);
+
+ getchar();
- printf("%s\n", decryptedBuffer);
+ MatrixClientDeleteDevice(&client);
MatrixHttpDeinit(&client);
return 0;
-}
\ No newline at end of file +}
diff --git a/examples/Decrypt.rdbg b/examples/Decrypt.rdbg Binary files differnew file mode 100644 index 0000000..4e83583 --- /dev/null +++ b/examples/Decrypt.rdbg |