Hello JerryChang,
I am using r32_release_v6.1 as a version of l4t.
To be able to reproduce the error you can swipe the code of crypto_service from Hwkey-agent to this:
/*
* Copyright (c) 2020, NVIDIA Corporation. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <crypto_service.h>
#include <ekb_helper.h>
#include <openssl/aes.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <openssl/bn.h>
#include <openssl/pem.h>
#include <openssl/ssl.h>
#include <openssl/rsa.h>
#include <openssl/evp.h>
#include <openssl/bio.h>
#include <openssl/err.h>
#include <openssl/rand.h>
int padding = RSA_PKCS1_PADDING;
static char publicKey[] = "-----BEGIN PUBLIC KEY-----\n"
"MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAy8Dbv8prpJ/0kKhlGeJY\n"
"ozo2t60EG8L0561g13R29LvMR5hyvGZlGJpmn65+A4xHXInJYiPuKzrKUnApeLZ+\n"
"vw1HocOAZtWK0z3r26uA8kQYOKX9Qt/DbCdvsF9wF8gRK0ptx9M6R13NvBxvVQAp\n"
"fc9jB9nTzphOgM4JiEYvlV8FLhg9yZovMYd6Wwf3aoXK891VQxTr/kQYoq1Yp+68\n"
"i6T4nNq7NWC+UNVjQHxNQMQMzU6lWCX8zyg3yH88OAQkUXIXKfQ+NkvYQ1cxaMoV\n"
"PpY72+eVthKzpMeyHkBn7ciumk5qgLTEJAfWZpe4f4eFZj/Rc8Y8Jj2IS5kVPjUy\n"
"wQIDAQAB\n"
"-----END PUBLIC KEY-----\n";
static char privateKey[] = "-----BEGIN RSA PRIVATE KEY-----\n"
"MIIEowIBAAKCAQEAy8Dbv8prpJ/0kKhlGeJYozo2t60EG8L0561g13R29LvMR5hy\n"
"vGZlGJpmn65+A4xHXInJYiPuKzrKUnApeLZ+vw1HocOAZtWK0z3r26uA8kQYOKX9\n"
"Qt/DbCdvsF9wF8gRK0ptx9M6R13NvBxvVQApfc9jB9nTzphOgM4JiEYvlV8FLhg9\n"
"yZovMYd6Wwf3aoXK891VQxTr/kQYoq1Yp+68i6T4nNq7NWC+UNVjQHxNQMQMzU6l\n"
"WCX8zyg3yH88OAQkUXIXKfQ+NkvYQ1cxaMoVPpY72+eVthKzpMeyHkBn7ciumk5q\n"
"gLTEJAfWZpe4f4eFZj/Rc8Y8Jj2IS5kVPjUywQIDAQABAoIBADhg1u1Mv1hAAlX8\n"
"omz1Gn2f4AAW2aos2cM5UDCNw1SYmj+9SRIkaxjRsE/C4o9sw1oxrg1/z6kajV0e\n"
"N/t008FdlVKHXAIYWF93JMoVvIpMmT8jft6AN/y3NMpivgt2inmmEJZYNioFJKZG\n"
"X+/vKYvsVISZm2fw8NfnKvAQK55yu+GRWBZGOeS9K+LbYvOwcrjKhHz66m4bedKd\n"
"gVAix6NE5iwmjNXktSQlJMCjbtdNXg/xo1/G4kG2p/MO1HLcKfe1N5FgBiXj3Qjl\n"
"vgvjJZkh1as2KTgaPOBqZaP03738VnYg23ISyvfT/teArVGtxrmFP7939EvJFKpF\n"
"1wTxuDkCgYEA7t0DR37zt+dEJy+5vm7zSmN97VenwQJFWMiulkHGa0yU3lLasxxu\n"
"m0oUtndIjenIvSx6t3Y+agK2F3EPbb0AZ5wZ1p1IXs4vktgeQwSSBdqcM8LZFDvZ\n"
"uPboQnJoRdIkd62XnP5ekIEIBAfOp8v2wFpSfE7nNH2u4CpAXNSF9HsCgYEA2l8D\n"
"JrDE5m9Kkn+J4l+AdGfeBL1igPF3DnuPoV67BpgiaAgI4h25UJzXiDKKoa706S0D\n"
"4XB74zOLX11MaGPMIdhlG+SgeQfNoC5lE4ZWXNyESJH1SVgRGT9nBC2vtL6bxCVV\n"
"WBkTeC5D6c/QXcai6yw6OYyNNdp0uznKURe1xvMCgYBVYYcEjWqMuAvyferFGV+5\n"
"nWqr5gM+yJMFM2bEqupD/HHSLoeiMm2O8KIKvwSeRYzNohKTdZ7FwgZYxr8fGMoG\n"
"PxQ1VK9DxCvZL4tRpVaU5Rmknud9hg9DQG6xIbgIDR+f79sb8QjYWmcFGc1SyWOA\n"
"SkjlykZ2yt4xnqi3BfiD9QKBgGqLgRYXmXp1QoVIBRaWUi55nzHg1XbkWZqPXvz1\n"
"I3uMLv1jLjJlHk3euKqTPmC05HoApKwSHeA0/gOBmg404xyAYJTDcCidTg6hlF96\n"
"ZBja3xApZuxqM62F6dV4FQqzFX0WWhWp5n301N33r0qR6FumMKJzmVJ1TA8tmzEF\n"
"yINRAoGBAJqioYs8rK6eXzA8ywYLjqTLu/yQSLBn/4ta36K8DyCoLNlNxSuox+A5\n"
"w6z2vEfRVQDq4Hm4vBzjdi3QfYLNkTiTqLcvgWZ+eX44ogXtdTDO7c+GeMKWz4XX\n"
"uJSUVL5+CVjKLjZEJ6Qc2WZLl94xSwL71E41H4YciVnSCQxVc4Jw\n"
"-----END RSA PRIVATE KEY-----\n";
static RSA *createRSA(char *key, int pubtype)
{
RSA *rsa = NULL;
BIO *bio = NULL;
bio = BIO_new(BIO_s_mem());
if (bio == NULL)
{
TLOGI("bio is NULL!\n");
}
BIO_puts(bio, key);
if (pubtype == 1)
{
rsa = PEM_read_bio_RSA_PUBKEY(bio, NULL, NULL, NULL);
}
else
{
rsa = PEM_read_bio_RSAPrivateKey(bio, NULL, NULL, NULL);
}
if (rsa == NULL)
{
TLOGI("wrong again\n");
}
BIO_free(bio);
return rsa;
}
static int private_decrypt(unsigned char *enc_data, int data_len, char *key, unsigned char *decrypted)
{
RSA *rsa = createRSA(key, 0);
if (rsa != NULL)
{
int result = RSA_private_decrypt(data_len, enc_data, decrypted, rsa, RSA_PKCS1_PADDING);
RSA_free(rsa);
return result;
}
return 0;
}
int public_encrypt(unsigned char *data, int data_len, char *key, unsigned char *encrypted)
{
RSA *rsa = createRSA(key, 1);
if (rsa != NULL)
{
int result = RSA_public_encrypt(data_len, data, encrypted, rsa, padding);
RSA_free(rsa);
return result;
}
return 0;
}
void crypto_srv_process_req(iovec_t *ipc_msg, int len)
{
crypto_srv_msg_t *msg = ipc_msg[0].base;
uint8_t *payload = ipc_msg[1].base;
int payload_len = msg->payload_len;
uint8_t *data = NULL;
uint8_t *key_in_ekb;
unsigned long err;
/*
AES_KEY aes_key;
int aes_enc_flag;
int idx;
*/
key_in_ekb = ekb_get_key(EKB_USER_KEY_DISK_ENCRYPTION);
if (key_in_ekb == NULL)
{
TLOGE("%s: get key in ekb failed\n", __func__);
return;
}
data = malloc(CRYPTO_SRV_PAYLOAD_SIZE);
if (data == NULL)
{
TLOGE("%s: malloc failed\n", __func__);
return;
}
memcpy(data, payload, payload_len);
if (msg->cmd == CRYPTO_SRV_CMD_ENCRYPT)
{
int size_ = public_encrypt(data, 1, publicKey, payload);
}
else
{
int size_ = private_decrypt(data, 1, privateKey, payload);
}
free(data);
}
The client app will take the input file from (./hwkey-agent -e -i input -o output -t) and encrypts it using RSA public encrypt then writes the result into the output file. If the output file is the same as the input it means that the call to RSA_public_encrypt did not pass.
Thanks for following up.