一 什么是 MD5?
MD5(Message-Digest Algorithm 5)是一种常用的哈希函数,通常用于数据加密和安全校验等场合。MD5 算法可以将任意长度的消息输入计算出一个固定长度的摘要,其生成的摘要具有唯一性和不可逆性,因此在一些场景下可以用来验证数据的完整性和真实性。本篇文章将详细介绍 MD5 算法的概念、原理、应用以及安全性问题。
MD5 是 Ronald Rivest 在1991年设计出来的一种哈希函数,其输入可以是任意长度的消息,输出则固定为128位。MD5 的全称是“Message-Digest Algorithm 5”,是 MD2 和 MD4 的改进版本。与前者相比,MD5 可以处理更大的消息,并且经过增加辅助函数和处理流程,其安全性也得到了进一步提高。
MD5 算法的核心思想是将任意长度的消息输入到一个压缩函数中,该函数通过一系列变换将消息转换成固定长度(128位)的消息摘要。由于函数中使用了大量的非线性变换操作,因此即使输入的消息相差只有一位,其输出的摘要也会发生很大的变化,这使得 MD5 算法在密码学、数字签名等领域中被广泛应用。
二 MD5的工作原理
附加填充:首先,MD5算法会对输入数据进行填充,使其长度达到512位的倍数(即64字节的倍数)。填充的方式是在原始数据后添加一个1,然后添加足够多的0,直到满足长度要求。
初始化缓冲区:MD5算法使用四个32位整数(A, B, C, D)作为缓冲区,这四个整数被称为链接变量(Chaining Variables)。这些变量在开始处理数据之前被初始化为特定的值。
处理数据块:算法将数据划分为512位(64字节)的块,并逐一处理这些块。对于每个数据块,算法执行四轮操作(每轮64次迭代),每轮操作都会更新链接变量的值。
生成摘要:当所有数据块都被处理后,算法将链接变量的值作为最终的消息摘要输出。这个摘要是一个128位的值,通常以32个十六进制数的形式表示。
三 MD5编码的特点
确定性:对于相同的输入数据,MD5算法总是生成相同的输出摘要。
雪崩效应:MD5算法对输入数据的微小变化非常敏感,即使只有一个比特位的改变,也会导致输出摘要的显著变化。
单向性:MD5算法是单向的,即无法从摘要中恢复出原始数据。
计算效率:MD5算法在计算上相对高效,可以在短时间内处理大量数据。
四 MD5应用场景
1、校验文件的完整性
如果张三给李四传了一个文件,如何确认这个文件传给李四是完整的呢
张三传文件前,先对文件做一个MD5加密,同时把MD5加密的密文传给李四
李四收到文件,也对该文件做MD5加密,如果得到的密文和张三给的密文一样,就说明文件是完整的。
2、存储用户密码
用户密码,理论上也不能直接明文存储在数据库中,因为一旦数据库被破解,用户的密码就全部丢失了
所以可以将用户密码做一个MD5加密,然后将密文存在数据库中
用户登录的时候,可以将用户的密码进行MD5加密,然后比对密文和数据库中的密文是否一致,来判断用户前台填的密码是否正确。
这只是一个思路,一般不会这么简单,一般生产环境会对用户密码加盐加密等等的处理,用户信息更加重要的,则需要更加复杂的计算逻辑。
五 MD5的原理
MD5以512位分组来处理输入的信息,且每一分组又被划分为16个32位子分组,经过一些列的处理后,算法输出由四个32位分组组成的128位散列值。具体的步骤如下所示:
1、填充
如果输入信息的长度(bit)对512求余的结果不等于448,就需要填充使得对512求余结果等于448。填充的方法是填充一个1和n个0。填充完成后,信息的长度为N*512+448
2、记录信息长度
用64位内存来存储填充前信息长度。这64位加在第一步结果的后面,这样信息长度就变为N*512 + 448 + 64 = (N+1)*512
3、装入标准的幻数(四个整数)
标准的幻数(物理顺序)是(A=(01234567)16,B=(89ABCDEF)16,C=(FEDCBA98)16,D=(76543210)16)。如果在程序中定义应该是(A=0X67452301L,B=0XEFCDAB89L,C=0X98BADCFEL,D=0X10325476L)。有点晕哈,其实想一想就明白了。
首先清楚整型的位表示方法,其次标准文档上要求的是:四个幻数在内存地址上从低到高为:
A: 01 23 45 67
B: 89 ab cd ef
C: fe dc ba 98
D: 76 54 32 10
采用小端表示法表示为A=0X67452301L,则在地址中就是A=01 23 45 67
4、循环运算
4.1、把消息分以512位为一分组进行处理
4.2、每一个分组进行4轮变换,以上面所说4个标准的幻数为起始变量进行计算,重新输出4个变量
4.3、以这4个变量再进行下一分组的运算,如果已经是最后一个分组,则这4个变量为最后的结果,即MD5值。
由上面的介绍,我们知道需要对(N+1)组数据进行处理,所以要循环N+1次,每次的循环执行下面的步骤:
将每一512字节细分成16个小组,每个小组32位(4个字节)
认识一下四个线性函数
F(X,Y,Z)=(X&Y)|((~X)&Z)
G(X,Y,Z)=(X&Z)|(Y&(~Z))
H(X,Y,Z)=XYZ
I(X,Y,Z)=Y^(X|(~Z))
设置Mj表示消息的第j个子分组(从0到15), <<< s 表示循环左移s位,则四种操作为:
FF(a,b,c,d,Mj,s,ti)表示a=b+((a+F(b,c,d)+Mj+ti)<<
GG(a,b,c,d,Mj,s,ti)表示a=b+((a+G(b,c,d)+Mj+ti)<<
HH(a,b,c,d,Mj,s,ti)表示a=b+((a+H(b,c,d)+Mj+ti)<<
II(a,b,c,d,Mj,s,ti)表示a=b+((a+I(b,c,d)+Mj+ti)<<
四轮运算
第一轮
a=FF(a,b,c,d,M0,7,0xd76aa478)
b=FF(d,a,b,c,M1,12,0xe8c7b756)
c=FF(c,d,a,b,M2,17,0x242070db)
d=FF(b,c,d,a,M3,22,0xc1bdceee)
a=FF(a,b,c,d,M4,7,0xf57c0faf)
b=FF(d,a,b,c,M5,12,0x4787c62a)
c=FF(c,d,a,b,M6,17,0xa8304613)
d=FF(b,c,d,a,M7,22,0xfd469501)
a=FF(a,b,c,d,M8,7,0x698098d8)
b=FF(d,a,b,c,M9,12,0x8b44f7af)
c=FF(c,d,a,b,M10,17,0xffff5bb1)
d=FF(b,c,d,a,M11,22,0x895cd7be)
a=FF(a,b,c,d,M12,7,0x6b901122)
b=FF(d,a,b,c,M13,12,0xfd987193)
c=FF(c,d,a,b,M14,17,0xa679438e)
d=FF(b,c,d,a,M15,22,0x49b40821)
第二轮
a=GG(a,b,c,d,M1,5,0xf61e2562)
b=GG(d,a,b,c,M6,9,0xc040b340)
c=GG(c,d,a,b,M11,14,0x265e5a51)
d=GG(b,c,d,a,M0,20,0xe9b6c7aa)
a=GG(a,b,c,d,M5,5,0xd62f105d)
b=GG(d,a,b,c,M10,9,0x02441453)
c=GG(c,d,a,b,M15,14,0xd8a1e681)
d=GG(b,c,d,a,M4,20,0xe7d3fbc8)
a=GG(a,b,c,d,M9,5,0x21e1cde6)
b=GG(d,a,b,c,M14,9,0xc33707d6)
c=GG(c,d,a,b,M3,14,0xf4d50d87)
d=GG(b,c,d,a,M8,20,0x455a14ed)
a=GG(a,b,c,d,M13,5,0xa9e3e905)
b=GG(d,a,b,c,M2,9,0xfcefa3f8)
c=GG(c,d,a,b,M7,14,0x676f02d9)
d=GG(b,c,d,a,M12,20,0x8d2a4c8a)
第三轮
a=HH(a,b,c,d,M5,4,0xfffa3942)
b=HH(d,a,b,c,M8,11,0x8771f681)
c=HH(c,d,a,b,M11,16,0x6d9d6122)
d=HH(b,c,d,a,M14,23,0xfde5380c)
a=HH(a,b,c,d,M1,4,0xa4beea44)
b=HH(d,a,b,c,M4,11,0x4bdecfa9)
c=HH(c,d,a,b,M7,16,0xf6bb4b60)
d=HH(b,c,d,a,M10,23,0xbebfbc70)
a=HH(a,b,c,d,M13,4,0x289b7ec6)
b=HH(d,a,b,c,M0,11,0xeaa127fa)
c=HH(c,d,a,b,M3,16,0xd4ef3085)
d=HH(b,c,d,a,M6,23,0x04881d05)
a=HH(a,b,c,d,M9,4,0xd9d4d039)
b=HH(d,a,b,c,M12,11,0xe6db99e5)
c=HH(c,d,a,b,M15,16,0x1fa27cf8)
d=HH(b,c,d,a,M2,23,0xc4ac5665)
第四轮
a=II(a,b,c,d,M0,6,0xf4292244)
b=II(d,a,b,c,M7,10,0x432aff97)
c=II(c,d,a,b,M14,15,0xab9423a7)
d=II(b,c,d,a,M5,21,0xfc93a039)
a=II(a,b,c,d,M12,6,0x655b59c3)
b=II(d,a,b,c,M3,10,0x8f0ccc92)
c=II(c,d,a,b,M10,15,0xffeff47d)
d=II(b,c,d,a,M1,21,0x85845dd1)
a=II(a,b,c,d,M8,6,0x6fa87e4f)
b=II(d,a,b,c,M15,10,0xfe2ce6e0)
c=II(c,d,a,b,M6,15,0xa3014314)
d=II(b,c,d,a,M13,21,0x4e0811a1)
a=II(a,b,c,d,M4,6,0xf7537e82)
b=II(d,a,b,c,M11,10,0xbd3af235)
c=II(c,d,a,b,M2,15,0x2ad7d2bb)
d=II(b,c,d,a,M9,21,0xeb86d391)
每轮循环后,将A、B、C、D分别加上a,b,c,d,然后进入下一循环
六 AT指令组件相关软件的使用
1 Gitee链接地址
组件位于amaziot_bloom_os_sdk\libraries\am\xtu\am_at.c Gitee源码地址:https://gitee.com/ning./hongdou Github源码地址:https://github.com/ayumid/hongdou |
2 应用层组件功能介绍
提供MD5的计算方法。
3 代码讲解
1 mbedtls_md5
计算MD5,并将结果传入形参中
C++ ret = mbedtls_md5( sample_md5_test_buf, sample_md5_test_buflen, md5sum ); |
2 mbedtls_md5_finish
最终计算MD5。
C++ ret = mbedtls_md5_finish( &ctx, output ) |
3 mbedtls_md5_update
更新MD5buf数据
C++ ret = mbedtls_md5_update( &ctx, input, ilen ) |
4 mbedtls_md5_starts
设置MD5计算context
C++ ret = mbedtls_md5_starts( &ctx ) |
4 Demo实战
4.1 创建一个Demo
复制8.6_random示例工程,到同一个文件夹下,修改文件名为9.1_md5,如图:
4.2 修改makefile
4.3 增加头文件
使用代码编辑器,将新建的工程文件加入代码编辑器中,打开main.c,修改main.c,加入头文件,如图:
4.4 修改代码
在Phase2Inits_exit 调用文件组件提供的对外API,如图:
4.5 编译
在SDK根目录打开命令行,输入命令.\build.bat -l .\amaziot_bloom_os_sdk\sample\libraries\9.1_md5\
C++ λ .\build.bat -l .\amaziot_bloom_os_sdk\sample\libraries\9.1_md5\ 子目录或文件 out\bin 已经存在。 子目录或文件 build\mbedTLS 已经存在。 子目录或文件 build\obj 已经存在。 gnumake: Entering directory `F:/3.asr-b/cat.1-asr1606/1.software/BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF/amaziot_bloom_os_sdk/sample/libraries/9.1_md5' armcc.exe -c --cpu Cortex-R4 --no_unaligned_access -g -O2 --apcs /inter --diag_suppress 2084,1,2,177,188,223,550,1296,2795,6319,9931,9933 --diag_error=warning --gnu --thumb --loose_implicit_cast -DDATA_COLLECTOR_IMPL -DISPT_OVER_SSP -DDIAG_SSP_DOUBLE_BUFFER_USE_DYNAMIC_ALLOCATION -DENV_XSCALE -DL1_DCXO_ENABLED -DLTE_HIGH_MOBILITY_OPTIMIZATION -DRUN_XIP_MODE -DCRANE_Z2 -DCA_LONG_IPC_MSG -DNEZHA3 -DNEZHA3_1826 -DUPGRADE_PLMS -DUPGRADE_PLMS_SR -DLTE_GSMMULTIBCCH -DGPLC_LTE_RSSI_SCAN -DL1V_NEW_RSSI -DUPGRADE_PLMS_3G -DUPGRADE_PLMS_L1 -DUPGRADE_FG_PLMS -DFG_PLMS_URR -DUPGRADE_L1A_FG_PLMS -DUPGRADE_PLMS_STAGE_2 -DUPGRADE_MBCCH -DMULTI_BCCH_READY_IND -DURR_MRAT_ICS_SEARCH -DUPGRADE_ICS -DMRAT_NAS -DUPGRADE_PLMS_SEARCH_API -DICS_MBCCH -DICS_MBCCH_2G_RSSI -DDIAG_NEWPP -DPHS_SW_DEMO -DPHS_SW_DEMO_TTC -DPHS_SW_DEMO_TTC_PM -DFULL_SYSTEM -D_DDR_INIT_ -D_TAVOR_HARBELL_ -DUPGRADE_ARBEL_PLATFORM -D_TAVOR_B0_SILICON_ -DTDL1C_SPY_ENABLE -DDLM_TAVOR -DTAVOR -DFLAVOR_DUALCORE -DDEBUG_D2_MOR_REG_RESEREVED_ENABLE -D_DIAG_USE_COMMSTACK_ -D_TAVOR_DIAG_ -DPM_DEBUG_MODE_ENABLED -DPM_D2FULL_MODE -DPM_EXT_DBG_INT_ARR -DFEATURE_WB_AMR_PS -DMACRO_FOR_LWG -DHL_LWG -DOPTIMIZE_FOR_2G_BCCH -DPLAT_TEST -D_FDI_USE_OSA_ -DPLAT_USE_THREADX -DLWIP_IPNETBUF_SUPPORT -DCRANE_MCU_DONGLE -DAT_OVER_UART -DPHS_SW_DEMO_TTC_PM -DUPGRADE_LTE_ONLY -DEXT_AT_MODEM_SUPPORT -DLTEONLY_THIN_SINGLE_SIM -DLFS_FILE_SYS -DLFS_FILE_SYS_V2 -DPSM_ENABLE -DNO_PAHO_MQTT -DNO_XML -DNO_LWM2M -DREMOVE_MBEDTLS -DNO_AT_NET -DCRANE_SD_NOT_SUPPORT -DNTP -DYMODEM_EEH_DUMP -DENABLE_DM_LTEONLY -DLTEONLY_THIN -DNO_EXTEND_MY_Q_AT -DNOT_SUPPORT_HTTPS -DNOT_SUPPORT_PM813 -DCRANEL_4MRAM -DREMOVE_PB -DUART_NEW_VERSION -DREMOVE_MEP -DREMOVE_SMS -DREMOVE_ENVSIM -DAPN_INCODE -DLTEONLY_THIN_SINGLE_SIM_2MFLASH -DASR160X_OPENCPU_FEATURE -DENABLE_UART3_FEATRUE -DENABLE_UART4_FEATRUE -DYUGE_MBEDTLS_3_2_1 -DENABLE_MAC_TX_DATA_LOGGING -DDISABLE_NVRAM_ACCESS -DINTEL_UPGRADE_EE_HANDLER_SUPPORT -DLTE_W_PS -DL1_DUAL_MODE -DUPGRADE_HERMON_DUAL -DINTEL_UPGRADE_DUAL_RAT -DINTEL_UPGRADE_GPRS_CIPHER_FLUSH -DUPGRADE_ENHANCED_QUAD_BAND -DINTEL_2CHIP_PLAT -DI_2CHIP_PLAT -DUPGRDE_TAVOR_COMMUNICATION -DRUN_WIRELESS_MODEM -DFLAVOR_DDR12MB_GB1MB5 -DFEATURE_SHMEM -DACIPC_ENABLE_NEW_CALLBACK_MECHANISM -DRELIABLE_DATA -DMAP_NSS -DTV_FNAME="\"SW_PLATFORM=PMD2NONE PHS_SW_DEMO PHS_SW_DEMO_PM SRCNUCLEUS FULL_SYSTEM NOACRTC PDFLT PLAT_TEST PV2 DIAGOSHMEM NVM WITHL1V\"" -DTV_FDESC="\"SW_DESCRIPTION=\"" -DENABLE_ACIPC -D_DATAOMSL_ENABLED_ -DUSB_CABLE_DETECTION_VIA_PMIC -DMIPS_TEST -DMIPS_TEST_RAM -DFLAVOR_DIET_RAM -DNVM_INCLUDE -DMSL_INCLUDE -DMSL_POOL_MEM -DNO_AUDIO -DOSA_QUEUE_NAMES -D_DIAG_DISABLE_USB_ -DOSA_NUCLEUS -DOSA_USED -DPM_D2NONE_MODE -DCRANE_SOC_TEMPERATURE_SENSOR -DL1_SW_UPDATE_FOR_DIGRF -DPHS_L1_SW_UPDATE_R7 -DUPGRADE_LTE -DFRBD_CALIB_NVM -DFRBD_AGC_CALIB -DFRBD_FDT_CALIB -DHSPA_MPR -DCAPT_PARAMS_OPTIMIZE -DL1_WB_R99_ONLY -DL1V_WB_R99_ONLY -DINTERGRATED_RF_SUPPORT -DL1_RX_DIV_SUPPORT -DENABLE_OOS_HANDLING -DTAVOR_D2_WB_L1_SUPPORT -DL1_DDR_HIGH_FREQ -DUPGRADE_DIGRF3G_SUPPORT -DW_PS_PLUS_G_PAGING -D"NO_APLP=0" -DINTEL_UPGRADE_UNIFIED_VOICE_TASK -DINTEL_UPGRADE_R99 -DAPLP_SPY_ENABLE -D__TARGET_FEATURE_DOUBLEWORD -DWHOLE_UMTS_STACK -DUSE_TTPCOM_CSR_BLUETOOTH_AUDIO_GAIN_CONTROL -DL1_UPGRADE_R5 -DUPGRADE_EDGE -DUPGRADE_R4_FS1 -DINTEL_UPGRADE_GSM_CRL_IF -DUPGRADE_EGPRS_M -DINTEL_UPGRADE_EGPRS_M -DINTEL_UPGRADE_RF_PARAMS_IN_CF_TDS -DINTEL_UPGRADE_2SAMPLES_PER_SYMBOL -D"GPRS_MULTISLOT_CLASS=12" -D"EGPRS_MULTISLOT_CLASS=12" -DMARVELL_UPGRADE_BSIC_REDESIGN -DMSL_INCLUDE -DINTEL_HERMON_SAC -DCRANE_CUST_BUILD -DL1_SW_UPDATE_FOR_DIGRF -DFLAVOR_COM -DSILICON_PV2 -DSILICON_SEAGULL -DSILICON_TTC_CORE_SEAGULL -DPCAC_INCLUDE -Otime -DBUILD_DATE="\"09 04 2024\"" -DBUILD_TIME="\"15:07:27\"" -Iatcmds\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\hop\telephony\yuge\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\hal\UART\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\hal\core\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\hal\PMU\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\hal\GPIO\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\os\posix\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\diag\diag_logic\src -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\csw\SysCfg\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\csw\platform\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\env\win32\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\csw\BSP\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\csw\platform\dev_plat\build -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\os\osa\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\os\threadx\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\os\nu_xscale\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\pcac\psm\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\pcac\httpclient\src -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\diag\diag_logic\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\hop\timer\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\hop\intc\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\csw\PM\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\hop\pm\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\softutil\TickManager\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\hop\BSP\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\hop\telephony\atcmdsrv\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\hop\telephony\atparser\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\hop\telephony\sdk\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\pcac\httpclient\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\pcac\ci\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\pcac\lwipv4v6\src\include -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\pcac\lwipv4v6\src\include\arch -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\pcac\lwipv4v6\src\include\ipv4 -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\pcac\lwipv4v6\src\include\ipv6 -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\pcac\lwipv4v6\src\include\lwip -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\pcac\lwipv4v6\src\include\netif -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\hop\mmi_mat\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\tavor\Arbel\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\tavor\env\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\hop\telephony\modem\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\pcac\duster\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\pcac\fota\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\hal\I2C\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\hal\ACIPC\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\softutil\fatsys\flash -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\softutil\FDI\src\INCLUDE -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\hal\MMU\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\softutil\FDI\src\FDI_ADD -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\softutil\FDI\src\FM_INC -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\softutil\fatsys\fs\hdr -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\softutil\littlefs\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\pcac\tts\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\pcac\dial\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\softutil\csw_memory\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\hop\utilities\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\hop\commpm\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\softutil\nvm\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\softutil\EEhandler\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\softutil\EEhandler\src -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\hop\RTC\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\hop\telephony\ci_client\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\hal\BT_device\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\hal\UART\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\hop\mrd\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\hop\dma\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\softutil\softutil\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\hal\SPI\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\pcac\websocket\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\pcac\atnet_srv\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\softutil\fotacomm\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\aud_sw\Audio\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\aud_sw\ACM_COMM\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\aud_sw\audio_stub\src -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\hop\aam\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\aud_sw\AudioHAL\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\hal\dbgshell\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\include\asr160x\pcac\opencpu\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\amaziot_bloom_os_sdk\utils -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\CSDK_CODE\mbedTLS\mbedTLS_3_2_1\asros -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\CSDK_CODE\mbedTLS\mbedTLS_3_2_1 -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\CSDK_CODE\mbedTLS\mbedTLS_3_2_1\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\CSDK_CODE\mbedTLS\mbedTLS_3_2_1\include -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\CSDK_CODE\mbedTLS\mbedTLS_3_2_1\include\mbedtls -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\CSDK_CODE\mbedTLS\mbedTLS_3_2_1\inc\mbedtls -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\CSDK_CODE\mbedTLS\mbedTLS_3_2_1\tests\include\test -DSDK_ENABLE_MBEDTLS -IF:/3.asr-b/cat.1-asr1606/1.software/BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF/amaziot_bloom_os_sdk/sample/libraries/9.1_md5\am\inc -IF:/3.asr-b/cat.1-asr1606/1.software/BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF/amaziot_bloom_os_sdk/sample/libraries/9.1_md5\atcmds\inc -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\amaziot_bloom_os_sdk\utils -IF:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\amaziot_bloom_os_sdk\libraries -o build\obj/ext_at_cmds.o F:/3.asr-b/cat.1-asr1606/1.software/BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF/amaziot_bloom_os_sdk/sample/libraries/9.1_md5/atcmds/src/ext_at_cmds.c armlink.exe build\obj/main.o build\obj/ext_at_cmds.o build\obj/ext_at_controller.o build\CSDK_CODE.lib \ -o F:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\out\bin\Arbel_PMD2NONE_40M.axf \ --via F:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\prebuilt_1606l\Arbel_PMD2NONE_targ_objliblist.txt \ --elf \ --scatter F:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\prebuilt_1606l\Crane_DS_4M_Ram_2M_Flash_XIP_CIPSRAM_Common_SingleSIM.sct \ --predefine="-DLTEONLY_THIN_SINGLE_SIM" --map --symbols --info sizes,totals \ --list F:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\out\bin\Arbel_PMD2NONE_40M.map \ --keep init.o(Header) --keep init.o(Vectors) --diag_suppress 6312,6314,6319,6329 \ --feedback F:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\out\feedbackLinkOptLteonlyThin_SingleSim_NoSMS.txt F:\3.asr-b\cat.1-asr1606\1.software\BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF\tools\buildimage_1606l.bat SDK_PROD_TYPE : [DM] SDK_CUST_SKU : [THIN_SINGLE_SIM_NO_SMS] SDK_PS_MODE : [LTEONLY] SDK_CHIP_VER : [Z2A0] SDK_OS_TYPE : [TX] Platform Convertion Tools v4.01 with PS option extension Convertion done! |INPUT |out\bin\cp_1606L.bin |MARK |NAME |EXEADDR .LOADADDR.LENGTH .CPZLADDR|COMPRESS STASTIC | |--------|--------|--------.--------.--------.--------|------------------------------| |This Is LteOnly 4M| |RW_CPZ_1|DDR_RW_ |7e119000.800650b0.0000cdd4.80066000|0000cdd4->00003000 |This Is LteOnly 4M| |RW_CPZ_2|PS_NCAH |7e388000.80071e84.00001300.80069000|00001300->00001000 |This Is LteOnly 4M| |RW_CPZ_3|ITCM |7e3dac00.80073184.0000f51c.8006a000|0000f51c->0000a000 |This Is LteOnly 4M| |RW_CPZ_4|CODE_PS |7e1aa000.800826a0.0002fe38.80074000|0002fe38->0001e000 |This Is LteOnly 4M| |RW_CPZ_5|CODEPSB |7e1dc000.800b24d8.000339c0.80092000|000339c0->0001b000 |This Is LteOnly 4M| |RW_CPZ_6|CODEPSC |7e213000.800e5e98.000323ec.800ad000|000323ec->0001b000 |This Is LteOnly 4M| |RW_CPZ_7|CODEPSD |7e249000.80118284.00028d88.800c8000|00028d88->0001a000 |This Is LteOnly 4M| |RW_CPZ_8|CODEPSE |7e277000.8014100c.0002e310.800e2000|0002e310->0001a000 |This Is LteOnly 4M| |RW_CPZ_9|CODEPSF |7e2a9000.8016f31c.0001c948.800fc000|0001c948->00011000 |This Is LteOnly 4M| |RW_CPZ_A|CODE_PL |7e2ca000.8018bc64.0002fa44.8010d000|0002fa44->0001e000 |This Is LteOnly 4M| |RW_CPZ_B|CODEPLB |7e2fa000.801bb6a8.00039058.8012b000|00039058->00022000 |This Is LteOnly 4M| |RW_CPZ_C|CODEPLC |7e337000.801f4700.000268d4.8014d000|000268d4->00011000 |--------|--------|--------.--------.--------.--------|------------------------------| | | 0x00203fd4 -> 0x00147000| | | 2.016(MB) -> 1.277(MB)| |------------------------------------------------------------------------------------| cp_1606L.axf cp_1606L.bin cp_1606L.map gnumake: Leaving directory `F:/3.asr-b/cat.1-asr1606/1.software/BLOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF/amaziot_bloom_os_sdk/sample/libraries/9.1_md5' "copy NEZHAC_CP_CNR_MIFI_TX.bin to ./ "
已复制 1 个文件。 |
4.6 生成固件
参考入门中开发工具,生成工具。
4.7 查看现象
固件下载到模组后,发送AT指令。AT串口信息如下:
点击下载 MD5 Demo 固件
5 总结
根据实验现象,可以实现MD5哈希值的计算,
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