C++ (Cpp) bsp_kdf_key_make Examples

Example #1

File: adp_cipher.c Project: magnusjjj/android_kernel_huawei_rle

BSP_S32 BSP_KDF_KeyMake(KEY_CONFIG_INFO_S *pstKeyCfgInfo, S_CONFIG_INFO_S *pstSCfgInfo, BSP_U32 u32DestIndex, KEY_MAKE_S *pstKeyMake)
{
	return (BSP_S32)bsp_kdf_key_make(pstKeyCfgInfo, pstSCfgInfo, (u32)u32DestIndex, pstKeyMake);
}

Example #2

s32 kdf_sha256(const u8*  pucInBuf, u32 ulInLen, u8* pucOutBuf)
{
    s32 iRet = SEC_OK;
	KEY_CONFIG_INFO_S key_cfg = {SHA_KEY_SOURCE_MAX, 0, NULL};
	S_CONFIG_INFO_S s_cfg = {SHA_S_SOURCE_MAX, 0, 0, NULL};
	KEY_MAKE_S k_make = {CIPHER_KEY_OUTPUT_BUTTOM, {0, 0, 0}};
	KEY_GET_S k_g_s = {0, 0, 0};
	u8 * temp_hash = NULL;
	u32 out_hash_len;

    if ((NULL == pucInBuf) || (0 == ulInLen) || (NULL == pucOutBuf))
    {
        bsp_trace(BSP_LOG_LEVEL_ERROR, BSP_MODU_SECURITY, "secDataSha: Input Parameter Error!\n");
        return -1;
    }

    {
#ifdef CONFIG_CIPHER
    	/*这里应该是使用SHA256，cipher实现的，因为onchiprom换成这样的*/
		temp_hash = (u8*)osl_malloc(SHA256_HASH_SIZE * sizeof(u32));
		if(NULL == temp_hash)
		{
			bsp_trace(BSP_LOG_LEVEL_ERROR, BSP_MODU_SECURITY, "secDataSha: Error! NO MEM TO MALLOC\n");
			goto end;
		}
		memset(temp_hash, 0, SHA256_HASH_SIZE * sizeof(u32));/*onchiprom里使用的初始key也是256bit全零*/
		k_g_s.enKeyLen = CIPHER_KEY_L256;
		k_g_s.penOutKeyLen = &out_hash_len;
		k_g_s.pKeyAddr = temp_hash;
		k_make.enKeyOutput = CIPHER_KEY_OUTPUT;
		k_make.stKeyGet = k_g_s;
		key_cfg.enShaKeySource = SHA_KEY_SOURCE_DDR;
		key_cfg.pKeySourceAddr = temp_hash;
		key_cfg.u32ShaKeyIndex = 0;
		s_cfg.enShaSSource = SHA_S_SOURCE_DDR;
		s_cfg.pSAddr = (void*)pucInBuf;
		s_cfg.u32ShaSIndex = 0;
		s_cfg.u32ShaSLength = ulInLen > 512 ? 512 : ulInLen;/*kdf 一次最大只能处理512字节*/
		do
		{
			iRet = bsp_kdf_key_make(&key_cfg, &s_cfg, 0/*不使用，所以无所谓*/, &k_make);
			if(iRet)
			{
				bsp_trace(BSP_LOG_LEVEL_ERROR, BSP_MODU_SECURITY,
					"secDataSha: run sha error : %X!\n", iRet);
				break;
			}
			pucInBuf += s_cfg.u32ShaSLength;
			s_cfg.pSAddr = (void*)pucInBuf;
			ulInLen -= s_cfg.u32ShaSLength;
			s_cfg.u32ShaSLength = ulInLen > 512 ? 512 : ulInLen;
			/*memcpy(key_cfg.pKeySourceAddr, k_make.stKeyGet.pKeyAddr, 256 >> 3);*//*没必要，两个指针是同一块地址空间*/
		}while(ulInLen > 0);
		memcpy(pucOutBuf, temp_hash, 256 >> 3);/*key的最大长度256bits*/
#else
		bsp_trace(BSP_LOG_LEVEL_ERROR, BSP_MODU_SECURITY, "cipher is not compiled and the onchiprom SHA algorithm is not used\n");
#endif
    }

end:
	free(temp_hash);
    return iRet;
}