87 lines
1.9 KiB
C
87 lines
1.9 KiB
C
/*
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* (C) Copyright 2007-2015
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* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
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* Jerry Wang <wangflord@allwinnertech.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* SPDX-License-Identifier: GPL-2.0
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*/
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#include <common.h>
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#include <securestorage.h>
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#include <smc.h>
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void hdcp_key_convert(unsigned char *keyi,unsigned char *keyo)
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{
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unsigned i;
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for(i=0; i<5; i++)
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{
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keyo[i] = keyi[i];
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}
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keyo[5] = keyo[6] = 0;
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for(i=0; i<280; i++)
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{
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keyo[7+i] = keyi[8+i];
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}
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keyo[287] = 0;
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}
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/*
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************************************************************************************************************
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*
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* function
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*
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* name :
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*
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* parmeters :
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*
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* return :
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*
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* note :
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*
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*
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************************************************************************************************************
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*/
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int sunxi_deal_hdcp_key(char *keydata, int keylen)
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{
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int ret, real_len;
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char buffer[4096];
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char buffer_convert[4096];
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hdcp_key_convert((unsigned char *)keydata, (unsigned char *)buffer_convert);
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ret = smc_aes_bssk_encrypt_to_dram(buffer_convert, 288, buffer, &real_len);
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if(ret<0)
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{
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printf("smc aes bssk encrypt failed\n");
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return -1;
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}
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ret = sunxi_secure_storage_write("hdcpkey", buffer, real_len);
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if(ret<0)
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{
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printf("sunxi secure storage write failed\n");
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return -1;
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}
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return 0;
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}
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