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Dear Kaleb,
Thank to your helps, Wolfssl project was built successfully but there is linker problem in building wolf-ssl example project yet.
As you can find in attached below picture and based on read-me file I just added wolfssl & wolfssl_example beside lpc-chip & lpc board reference projects.
but seems there is a setting for lib-wolfssl project in compiler & linker include sections which i could not find.
Also based on below command line output you can see that is a linker problem which could not find lib-wolfssl.a library in
"${workspace_loc:/lib_wolfssl/Debug}"
,Although as I said before wolfssl was built successfully and there is a
file in
"${workspace_loc:/wolfssl/Debug}"
Do you have any suggestion how could I fix it ?
WBR,
Dizgah.
make -r -j4 all
Building target: wolf_example.axf
Invoking: MCU Linker
arm-none-eabi-gcc -nostdlib -L"D:\workspace\MCUXpresso\wolfssl\Debug" -L"D:\workspace\MCUXpresso\wolfssl\Debug" -L"D:\workspace\MCUXpresso\lpc_chip_18xx\Debug" -L"D:\workspace\MCUXpresso\lpc_board_nxp_lpcxpresso_1837\Debug" -Xlinker -Map="wolf_example.map" -Xlinker --gc-sections -mcpu=cortex-m3 -mthumb -T "wolf_example_Debug.ld" -o "wolf_example.axf" ./src/lpc_18xx_startup.o ./src/wolfssl_example.o -llib_wolfssl -lwolfssl -llpc_chip_18xx -llpc_board_nxp_lpcxpresso_1837
c:/nxp/mcuxpressoide_10.3.0_2200/ide/plugins/com.nxp.mcuxpresso.tools.win32_10.3.0.201811011841/tools/bin/../lib/gcc/arm-none-eabi/7.3.1/../../../../arm-none-eabi/bin/ld.exe: cannot find -llib_wolfssl
collect2.exe: error: ld returned 1 exit status
make: *** [makefile:37: wolf_example.axf] Error 1
Dear Kaleb,
As I said before I have no success in building example by MCUXPRESSO.
Also because project file includes all supported ISE configs and this confusing me, then I try to make a simple minimal project in MCUXPRESSO with just adding wolfCrypt sources.
I have Some question:
1- As I understand core crypto operations are written in assembly, then is at&t syntax correct choice for cross compiling for LPC1768 ?
2- If yes, why Assembler return "bad instruction
aes_asm.S as I said in my last post?
3- whats function of ksdk_port.c file in wolfcrypt\src\port\nxp files ?why crypto functions does not implemented in general wolfcrypt directory(I could not find any NXP specific function in this file)
4- what are *.i & *.am files?
5- why wlofcrypt headers are not located beside sources and are located in wolfssl/wolfcrpy directory ?
WBR,
Dizgah.
Dear Kaleb,
Thank you for answers.
I try to build WolfSSl example for LPC1837 in my MCUXPRESSO( newer version of LPCXPRESSO) based on provided readme file.
Every steps is followed and I do not change any thing.
but I received following errors which seems assembler could not detect correct MCU architecture.
WBR,
Dizgah.
Finished building: ../wolfcrypt/src/aes.c
Building file: ../wolfcrypt/src/aes_asm.S
Invoking: MCU Assembler
arm-none-eabi-gcc -c -x assembler-with-cpp -D__REDLIB__ -DDEBUG -D__CODE_RED -I"D:\workspace\MCUXpresso\wolfssl" -I"D:\workspace\MCUXpresso\wolfssl\IDE\LPCXPRESSO\lib_wolfssl" -I"D:\workspace\MCUXpresso\lpc_chip_18xx\inc" -I"D:\workspace\MCUXpresso\lpc_board_nxp_lpcxpresso_1837\inc" -g3 -mcpu=cortex-m3 -mthumb -D__REDLIB__ -specs=redlib.specs -o "wolfcrypt/src/aes_asm.o" "../wolfcrypt/src/aes_asm.S"
../wolfcrypt/src/aes_asm.S: Assembler messages:
../wolfcrypt/src/aes_asm.S:52: Error: bad instruction `movq %rcx,%r10'
../wolfcrypt/src/aes_asm.S:53: Error: bad instruction `shrq $4,%rcx'
../wolfcrypt/src/aes_asm.S:54: Error: bad instruction `shlq $60,%r10'
../wolfcrypt/src/aes_asm.S:55: Error: bad instruction `je NO_PARTS'
../wolfcrypt/src/aes_asm.S:56: Error: bad instruction `addq $1,%rcx'
../wolfcrypt/src/aes_asm.S:58: Error: bad instruction `subq $16,%rsi'
../wolfcrypt/src/aes_asm.S:59: Error: bad instruction `movdqa (%rdx),%xmm1'
../wolfcrypt/src/aes_asm.S:61: Error: bad instruction `pxor (%rdi),%xmm1'
../wolfcrypt/src/aes_asm.S:62: Error: bad instruction `pxor (%r8),%xmm1'
Dear Kaleb,
I am experiencing another amazing support and really appreciated about it;)
I am trying to send/receive encrypted data from my LPC1768 client over Ethernet to a server based on TLS secure connection.
I am interested to secure IOT communication and am interested to do this based on mature open source solutions.
Yes, I saw provided example for MCUXPRESSO and I am trying to port it to LPC1768 MCU.
As I understand en/decryption layer is isolated and abstracted from transportation layer in WolfSSL.Am I true ?
( for example calling my receive function inside wolfSSL_read() method).
And as I understand crypto algorithms like (AES,DES,RSA) are implemented in wolfcrypt and SSL/TLS in wolfssl, am I true?
Also Is there any minimal sample project just using wlofCrypt(not wolfssl or any other extra library) ?
With Best Regards,
Dizgah.
Hi every one,
I need to test TLS connection with my LPC1768 processor(Bare metal/freeRTOS/etc.)
It seems I need a network stack library for POSIX compliant socket functions(like LWIP)
then is there any sample program or tutorial note where I need to start ?
Dear Kaleb,
Really thank you,
I have never seen before this level of Support,even in commercial product supporting.
I am learning Asymmetric cryptographic algorithms in embedded devices.
Please let me to consider to your code and ask my question here.
With best regards,
Mahmoud.
Hi,
I need a small footprint AES crypto library for using with my tiny cortex m0 mcu from nxp (lpc11u68).
Wolfcrypt seems amazing but the whole project mixed me up because of various header & source files.
I try to copy AES library files to my project but seems there unbreakable dependency chain in sources( or at least I think there is ; )
Any way ,how can I use only AES crypto engine in my own application without using whole wolfcrypt library?(With respect to the wolfcrypt open source licence )
---
As another question does AES crypto engine written in C or assembly language ?
WBR.
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