Hello,
(I'm new user of ns3 and crypto)
I have link errors with Crypto++. These errors indicate that the compiler
cannot find certain functions or classes defined in Crypto++. This can
happen if Crypto++ is not correctly linked to my project. However, I tried
to modify my project's CMakeLists.txt file as follows:
set(target_prefix scratch_)
function(create_scratch source_files)
# Return early if no sources in the subdirectory
list(LENGTH source_files number_sources)
if(number_sources EQUAL 0)
return()
endif()
# If the scratch has more than a source file, we need to find the source
with
# the main function
set(scratch_src)
foreach(source_file ${source_files})
file(READ ${source_file} source_file_contents)
string(REGEX MATCHALL "main[(| (]" main_position
"${source_file_contents}")
if(CMAKE_MATCH_0)
set(scratch_src ${source_file})
endif()
endforeach()
if(NOT scratch_src)
return()
endif()
# Get parent directory name
get_filename_component(scratch_dirname ${scratch_src} DIRECTORY)
string(REPLACE "${CMAKE_CURRENT_SOURCE_DIR}" "" scratch_dirname
"${scratch_dirname}"
)
string(REPLACE "/" "_" scratch_dirname "${scratch_dirname}")
# Get source name
get_filename_component(scratch_name ${scratch_src} NAME_WE)
set(target_prefix scratch_)
if(scratch_dirname)
# Join the names together if dirname is not the scratch folder
set(target_prefix scratch${scratch_dirname}_)
endif()
# Get source absolute path and transform into relative path
get_filename_component(scratch_src ${scratch_src} ABSOLUTE)
get_filename_component(scratch_absolute_directory ${scratch_src}
DIRECTORY)
string(REPLACE "${PROJECT_SOURCE_DIR}" "${CMAKE_OUTPUT_DIRECTORY}"
scratch_directory ${scratch_absolute_directory}
)
add_executable(${target_prefix}${scratch_name} "${source_files}")
if(${NS3_STATIC})
target_link_libraries(
${target_prefix}${scratch_name} ${LIB_AS_NEEDED_PRE_STATIC}
${lib-ns3-static}
)
else()
target_link_libraries(
${target_prefix}${scratch_name} "${ns3-libs}" "${ns3-contrib-libs}"
"${ns3-external-libs}"
)
endif()
set_runtime_outputdirectory(
${scratch_name} ${scratch_directory}/ ${target_prefix}
)
endfunction()
# Scan *.cc files in ns-3-dev/scratch and build a target for each
file(GLOB single_source_file_scratches CONFIGURE_DEPENDS
${CMAKE_CURRENT_SOURCE_DIR}/*.cc)
foreach(scratch_src ${single_source_file_scratches})
create_scratch(${scratch_src})
endforeach()
# Scan *.cc files in ns-3-dev/scratch subdirectories and build a target for
each
# subdirectory
file(
GLOB_RECURSE scratch_subdirectories
CONFIGURE_DEPENDS
LIST_DIRECTORIES true
${CMAKE_CURRENT_SOURCE_DIR}/**
)
# Filter out files
foreach(entry ${scratch_subdirectories})
if(NOT (IS_DIRECTORY ${entry}))
list(REMOVE_ITEM scratch_subdirectories ${entry})
endif()
endforeach()
foreach(subdir ${scratch_subdirectories})
if(EXISTS ${subdir}/CMakeLists.txt)
# If the subdirectory contains a CMakeLists.txt file
# we let the CMake file manage the source files
#
# Use this if you want to link to external libraries
# without creating a module
add_subdirectory(${subdir})
else()
# Otherwise we pick all the files in the subdirectory
# and create a scratch for them automatically
file(GLOB scratch_sources CONFIGURE_DEPENDS ${subdir}/*.cc)
create_scratch("${scratch_sources}")
endif()
endforeach()
find_external_library(DEPENDENCY_NAME cryptopp
HEADER_NAME aes.h
LIBRARY_NAME cryptopp
SEARCH_PATHS /usr/include/cryptopp)
if(${CRYPTOPP_FOUND}) # Notice that the contents of DEPENDENCY_NAME became
a prefix for the _FOUND variable
find_package(cryptopp REQUIRED)
include_directories(${CRYPTOPP_INCLUDE_DIRS})
link_libraries(${CRYPTOPP_LIBRARIES})
endif()
add_executable(${target_prefix}${scratch_name} "fanetex.cc")
target_link_libraries(${target_prefix}${scratch_name} PRIVATE cryptopp)
can you help me to solve this problem ? Thank you [image: Capture d’écran
2024-04-17 114345.png]
Le mardi 16 avril 2024 à 21:53:22 UTC-5, Frank Sapone a écrit :
> I grabbed it but it's not relevant. I need to have a certificate with RSA
> PSS that can be read by CryptoPP with the X509Cert lib. Is it possible to
> do this?
>
> On Tuesday, April 16, 2024 at 3:19:47 PM UTC-4 Jeffrey Walton wrote:
>
>> On Tue, Apr 16, 2024 at 1:44 PM One Sini <[email protected]> wrote:
>>
>>> I wasn't entirely satisfied with the security, so I've adjusted the
>>> code. I'm not sure if that helps you, depending on what you're doing with
>>> it.
>>>
>>> This code uses RSA with OAEP (Optimal Asymmetric Encryption Padding) to
>>> avoid security issues like padding oracle attacks. It generates RSA keys
>>> with a length of 2048 bits, encrypts the message with OAEP padding, and
>>> then decrypts it.
>>>
>>> Best Regards Satoshi
>>>
>>
>> I deleted the message from the group. The *.pdf and *.pages smells of
>> malware.
>>
>> If you want to provide code, please inline it or provide it as a text
>> attachment.
>>
>> Jeff
>>
>>>
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