Decryptor/LocalAttestationCode/LocalAttestationCode.edl

/*
 * Copyright (C) 2011-2017 Intel Corporation. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in
 *     the documentation and/or other materials provided with the
 *     distribution.
 *   * Neither the name of Intel Corporation nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */

enclave  {
    include "sgx_eid.h"
    include "datatypes.h"
//    include "sgx_tcrypto.h" // For some reason, this is not being detected - macros are not being resolved!
    #define SEALED_SIZE 768  // 656 // =0x300 (0x290 is the size of the sealed message when both the public(0x40) and private key(0x20) are included) 
// TODO: refine this to avoid crashes 
    #define MAX_POST_LA_MSG_SIZE 32 // 32 bytes for the mrsigner from the verifier that will be sent to the apache enclave BUT possibly much more for decrypted content
    include "../Include/dh_session_protocol.h"
    trusted{
        public uint32_t session_request([out] sgx_dh_msg1_t *dh_msg1, [out] uint32_t *session_id);
        public uint32_t exchange_report([in] sgx_dh_msg2_t *dh_msg2, [out] sgx_dh_msg3_t *dh_msg3, [in] uint32_t *session_id, [out] uint8_t* read);
        public uint32_t create_and_seal_ecdsa_signing_key_pair([out]sgx_ec256_public_t* pub_key, [in] uint32_t* sealed_data_length, [out, size=SEALED_SIZE] uint8_t* sealed_data);
        public uint32_t unseal_and_restore_sealed_signing_key_pair([out] sgx_ec256_public_t* pub_key, [in, size=SEALED_SIZE] uint8_t* sealed_data, [in] size_t* sealed_data_length);
        public uint32_t end_session();
        public uint32_t calculate_sealed_data_size(uint32_t input_size); 
public uint32_t create_and_sign_client_side_pub_key([in] sgx_measurement_t* mr_enclave, [out] sgx_ec256_public_t* generated_pub_key, [out] sgx_ec256_signature_t* generated_signature);
//public uint32_t decrypt([in, size=48] uint8_t* ciphertext, [in, size=16] uint8_t* payload_tag, [out, size=MAX_POST_LA_MSG_SIZE] uint8_t* plaintext); 
//public uint32_t encrypt([in, size=MAX_POST_LA_MSG_SIZE] uint8_t *plaintext, size_t plaintext_length, [out,size=16] uint8_t* payload_tag, [out, size=48] uint8_t* ciphertext, [out] uint32_t* counter);
//public uint32_t decrypt([in, size=48] uint8_t* ciphertext, size_t ciphertext_length, [out, size=16] uint8_t* payload_tag, [out, size=MAX_POST_LA_MSG_SIZE] uint8_t* plaintext, size_t plaintext_length);
public uint32_t decrypt([in, size=32] uint8_t* ip_ciphertext, uint32_t ciphertext_len  , [in,size=16] uint8_t* ip_tag , [out, size=32] uint8_t* op_plaintext );
    };
    untrusted{
    };
};