Esempio n. 1
0
LS_API bool tube_data(tube *t, uint8_t *data, size_t len, ls_err *err)
{
    // max size for CBOR preamble 19 bytes:
    // 1(map|27) 8(length) 1(key:0) 1(bstr|27) 8(length)
    //uint8_t preamble[19];
    cn_cbor *map;
    cn_cbor *cdata;
    bool ret = false;
    cn_cbor_context ctx;

    assert(t);
    if (len == 0) {
        return tube_send(t, SPUD_DATA, false, false, NULL, 0, 0, err);
    }

    if (!_map_create(&ctx, &map, err)) {
        return false;
    }

    // TODO: the whole point of the iov system is so that we don't have to copy
    // the data here.  Which we just did.  Please fix.
    if (!(cdata = cn_cbor_data_create(data, len, &ctx, NULL)) ||
            !cn_cbor_mapput_int(map, 0, cdata, &ctx, NULL))
    {
        LS_ERROR(err, LS_ERR_NO_MEMORY);
        goto cleanup;
    }
    ret = tube_send_cbor(t, SPUD_DATA, false, false, map, err);

cleanup:
    ls_pool_destroy((ls_pool*)ctx.context);
    return ret;
}
Esempio n. 2
0
bool _COSE_map_put(COSE * pCose, int key, cn_cbor * value, int flags, cose_errback * perr)
{
#ifdef USE_CBOR_CONTEXT    
	cn_cbor_context * context = &pCose->m_allocContext;
#endif
	cn_cbor_errback error;
	bool f;

	if ((flags & COSE_BOTH) == COSE_BOTH) {
		if (perr != NULL) perr->err = COSE_ERR_INVALID_PARAMETER;
	errorReturn:
		return false;
	}

	if (perr != NULL) perr->err = COSE_ERR_NONE;

	switch (flags) {
	case COSE_PROTECT_ONLY:
		f = cn_cbor_mapput_int(pCose->m_protectedMap, key, value, CBOR_CONTEXT_PARAM_COMMA &error);
		break;

	case COSE_UNPROTECT_ONLY:
		f = cn_cbor_mapput_int(pCose->m_unprotectMap, key, value, CBOR_CONTEXT_PARAM_COMMA &error);
		break;

	case COSE_DONT_SEND:
		if (pCose->m_dontSendMap == NULL) {
			pCose->m_dontSendMap = cn_cbor_map_create(CBOR_CONTEXT_PARAM_COMMA &error);
			CHECK_CONDITION(pCose->m_dontSendMap != NULL, COSE_ERR_OUT_OF_MEMORY);
		}
		f = cn_cbor_mapput_int(pCose->m_dontSendMap, key, value, CBOR_CONTEXT_PARAM_COMMA &error);
		break;

	default:
		FAIL_CONDITION(COSE_ERR_INVALID_PARAMETER);
		break;
	}

	CHECK_CONDITION(f, _MapFromCBOR(error));

	return f;
}
Esempio n. 3
0
cn_cbor * BuildKey(const cn_cbor * pKeyIn, bool fPublicKey)
{
	cn_cbor * pKeyOut = cn_cbor_map_create(CBOR_CONTEXT_PARAM_COMMA NULL);
	cn_cbor * pKty = cn_cbor_mapget_string(pKeyIn, "kty");
	cn_cbor * p;
	cn_cbor * pKey;
	cn_cbor * pValue;
	int i;
	int kty;
	unsigned char * pb;
	size_t cb;

	if (pKeyOut == NULL) return NULL;

	if ((pKty == NULL) || (pKty->type != CN_CBOR_TEXT)) return NULL;
	if (pKty->length == 2) {
		if (strncmp(pKty->v.str, "EC", 2) == 0) kty = 2;
		else return NULL;
	}
	else if (pKty->length == 3) {
		if (strncmp(pKty->v.str, "oct", 3) == 0) kty = 4;
		else return NULL;
	}
	else return NULL;

	p = cn_cbor_int_create(kty, CBOR_CONTEXT_PARAM_COMMA NULL);
	if (p == NULL) return NULL;
	if (!cn_cbor_mapput_int(pKeyOut, 1, p, CBOR_CONTEXT_PARAM_COMMA NULL)) return NULL;

	for (pKey = pKeyIn->first_child; pKey != NULL; pKey = pKey->next->next) {
		pValue = pKey->next;

		if (pKey->type == CN_CBOR_TEXT) {
			for (i = 0; i < 7; i++) {
				if ((pKey->length == strlen(RgStringKeys[i].szKey)) &&
					(strncmp(pKey->v.str, RgStringKeys[i].szKey, strlen(RgStringKeys[i].szKey)) == 0) &&
					((RgStringKeys[i].kty == 0) || (RgStringKeys[i].kty == kty))) {
					switch (RgStringKeys[i].operation) {
					case OPERATION_NONE:
						p = cn_cbor_clone(pValue, CBOR_CONTEXT_PARAM_COMMA NULL);
						if (p == NULL) return NULL;
						if (!cn_cbor_mapput_int(pKeyOut, RgStringKeys[i].keyNew, p, CBOR_CONTEXT_PARAM_COMMA NULL)) return NULL;
						break;

					case OPERATION_BASE64:
						if ((strcmp(pKey->v.str, "d") == 0) && fPublicKey) continue;

						pb = base64_decode(pValue->v.str, pValue->length, &cb);
						p = cn_cbor_data_create(pb, (int)cb, CBOR_CONTEXT_PARAM_COMMA NULL);
						if (p == NULL) return NULL;
						if (!cn_cbor_mapput_int(pKeyOut, RgStringKeys[i].keyNew, p, CBOR_CONTEXT_PARAM_COMMA NULL)) return NULL;
						break;

					case OPERATION_STRING:
						p = cn_cbor_int_create(MapName(pValue, RgCurveNames, _countof(RgCurveNames)), CBOR_CONTEXT_PARAM_COMMA NULL);
						if (p == NULL) return NULL;
						if (!cn_cbor_mapput_int(pKeyOut, RgStringKeys[i].keyNew, p, CBOR_CONTEXT_PARAM_COMMA NULL)) return NULL;
						break;
					}
					i = 99;
				}
			}
		}
	}

	return pKeyOut;
}
Esempio n. 4
0
HCOSE_RECIPIENT COSE_Mac_add_shared_secret(HCOSE_MAC hcose, COSE_Algorithms alg, byte * rgbKey, int cbKey, byte * rgbKid, int cbKid, cose_errback * perr)
{
#ifdef USE_CBOR_CONTEXT
	cn_cbor_context * context = NULL;
#endif // USE_CBOR_CONTEXT

	COSE_RecipientInfo * pobj;
	COSE_MacMessage * pcose = (COSE_MacMessage *)hcose;
	cn_cbor * cn_Temp = NULL;
	cn_cbor * pRecipients = NULL;
	cn_cbor * pRecipientsNew = NULL;
	byte * pbKey = NULL;
	byte * pbTemp = NULL;
	cn_cbor * cnTemp = NULL;
	cn_cbor_errback cbor_error;

	CHECK_CONDITION(IsValidMacHandle(hcose) && (rgbKey != NULL), COSE_ERR_INVALID_PARAMETER);

#ifdef USE_CBOR_CONTEXT
	context = &pcose->m_message.m_allocContext;
#endif // USE_CBOR_CONTEXT

	switch (alg) {
	case COSE_Algorithm_Direct:
		break;

	default:
		FAIL_CONDITION(COSE_ERR_INVALID_PARAMETER);
	}

	pobj = (COSE_RecipientInfo *)COSE_CALLOC(1, sizeof(COSE_RecipientInfo), context);
	CHECK_CONDITION(pobj != NULL, COSE_ERR_OUT_OF_MEMORY);

	if (!_COSE_Init(&pobj->m_encrypt.m_message, COSE_unknown_object, CBOR_CONTEXT_PARAM_COMMA perr)) {
		goto errorReturn;
	}

	cn_Temp = cn_cbor_int_create(alg, CBOR_CONTEXT_PARAM_COMMA &cbor_error);
	CHECK_CONDITION_CBOR(cn_Temp != NULL, cbor_error);
	CHECK_CONDITION_CBOR(cn_cbor_mapput_int(pobj->m_encrypt.m_message.m_unprotectMap, COSE_Header_Algorithm, cn_Temp, CBOR_CONTEXT_PARAM_COMMA &cbor_error), cbor_error);
	cn_Temp = NULL;

	if (cbKid > 0) {
		pbTemp = (byte *)COSE_CALLOC(cbKid, 1, context);
		CHECK_CONDITION(pbTemp != NULL, COSE_ERR_OUT_OF_MEMORY);

		memcpy(pbTemp, rgbKid, cbKid);
		cnTemp = cn_cbor_data_create(pbTemp, cbKid, CBOR_CONTEXT_PARAM_COMMA &cbor_error);
		CHECK_CONDITION_CBOR(cnTemp != NULL, cbor_error);
		pbTemp = NULL;

		CHECK_CONDITION_CBOR(cn_cbor_mapput_int(pobj->m_encrypt.m_message.m_unprotectMap, COSE_Header_KID, cnTemp, CBOR_CONTEXT_PARAM_COMMA &cbor_error), cbor_error);
	}

	pobj->m_encrypt.pbKey = pbKey = (byte *)COSE_CALLOC(cbKey, 1, context);
	CHECK_CONDITION(pobj->m_encrypt.pbKey != NULL, COSE_ERR_OUT_OF_MEMORY);

	memcpy(pbKey, rgbKey, cbKey);
	pobj->m_encrypt.cbKey = cbKey;

	pobj->m_recipientNext = pcose->m_recipientFirst;
	pcose->m_recipientFirst = pobj;

	pRecipients = _COSE_arrayget_int(&pcose->m_message, INDEX_MAC_RECIPIENTS);
	if (pRecipients == NULL) {
		pRecipients = pRecipientsNew = cn_cbor_array_create(CBOR_CONTEXT_PARAM_COMMA &cbor_error);
		CHECK_CONDITION_CBOR(pRecipients != NULL, cbor_error);
		pRecipientsNew = NULL;

		CHECK_CONDITION_CBOR(_COSE_array_replace(&pcose->m_message, pRecipients, INDEX_MAC_RECIPIENTS, CBOR_CONTEXT_PARAM_COMMA &cbor_error), cbor_error);
	}

	CHECK_CONDITION_CBOR(cn_cbor_array_append(pRecipients, pobj->m_encrypt.m_message.m_cbor, &cbor_error), cbor_error);

	pobj->m_encrypt.m_message.m_flags |= 1;
	return (HCOSE_RECIPIENT)pobj;

errorReturn:
	if (cn_Temp != NULL) CN_CBOR_FREE(cn_Temp, context);
	if (pRecipientsNew != NULL) CN_CBOR_FREE(pRecipientsNew, context);
	// if (pobj != NULL) COSE_Recipient_Free(pobj);
	return NULL;
}