Test this way
a basic guide on how to generate an RSA key pair with PSS padding, sign an
X509 certificate with the private key, and verify the signature with the
public key using the Crypto++ library:
1. Generating an RSA Key Pair with PSS Padding:
cpp
Copy code
#include <cryptopp/rsa.h>
#include <cryptopp/osrng.h>
#include <cryptopp/pssr.h>
using namespace CryptoPP;
void generateRSAKeyPair(RSA::PrivateKey& privateKey, RSA::PublicKey&
publicKey) {
AutoSeededRandomPool rng;
InvertibleRSAFunction params;
params.GenerateRandomWithKeySize(rng, 2048);
privateKey = RSA::PrivateKey(params);
publicKey = RSA::PublicKey(params);
}
int main() {
RSA::PrivateKey privateKey;
RSA::PublicKey publicKey;
generateRSAKeyPair(privateKey, publicKey);
// The RSA key pair has been generated and is now available
return 0;
}
1. Signing the X509 Certificate with the Private Key:
cpp
Copy code
#include <cryptopp/cryptlib.h>
#include <cryptopp/oids.h>
#include <cryptopp/rsa.h>
#include <cryptopp/sha.h>
#include <cryptopp/filters.h>
#include <cryptopp/base64.h>
using namespace CryptoPP;
void signCertificate(const RSA::PrivateKey& privateKey, const X509&
certificate, byte* signature) {
// Implement the process of signing the certificate here
// Use privateKey and certificate to sign the certificate
}
int main() {
// Load or create your X509 certificate
// Here, we assume you already have an X509 certificate
RSA::PrivateKey privateKey;
// Load or generate your private key
// Here, we assume you already have a private key
byte signature[256]; // Space for the signature
signCertificate(privateKey, certificate, signature);
// The certificate has been signed, and the signature is now available
return 0;
}
1. Verifying the Signature with the Public Key:
cpp
Copy code
#include <cryptopp/rsa.h>
#include <cryptopp/sha.h>
#include <cryptopp/filters.h>
#include <cryptopp/base64.h>
using namespace CryptoPP;
bool verifySignature(const RSA::PublicKey& publicKey, const X509&
certificate, const byte* signature) {
// Implement the process of verifying the signature here
// Use publicKey, certificate, and signature
// Return true if the signature is valid, otherwise false
return false;
}
int main() {
// Load or create your X509 certificate
// Here, we assume you already have an X509 certificate
RSA::PublicKey publicKey;
// Load or generate your public key
// Here, we assume you already have a public key
byte signature[256]; // Take the signature from the certificate
signature
bool isValid = verifySignature(publicKey, certificate, signature);
// Check if the signature is valid
return 0;
}
These code snippets serve as a foundation. You will need to adapt them
according to your specific implementation, including the loading process
for the X509 certificate and the private/public keys. Remember to include
error handling and handle edge cases in your implementation
I hope this help you
;)
Manish sharma <manish.sha...@brsoftech.org> schrieb am Mi. 24. Apr. 2024 um
14:42:
> Crypto Betting <https://www.brsoftech.com/blog/crypto-sports-betting/>
>
> On Wed, Apr 24, 2024 at 6:08 PM Frank Sapone <franksapone...@gmail.com>
> wrote:
>
>> Has anyone figured out how to use PSS and SHA256 *WITH *CryptoPP-PEM? I
>> also tried reporting this to the issuer tracker at
>> https://github.com/noloader/cryptopp-pem and nobody has replied. I
>> can't imagine I'm the only person using this library in order to achieve
>> this with X509 Certs.
>>
>> Thanks,
>> Frank
>>
>> On Wednesday, April 17, 2024 at 11:43:54 AM UTC-4 HELA YAICH wrote:
>>
>>> 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 <one...@gmail.com> 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
>>>>>
>>>>>> --
>> You received this message because you are subscribed to the Google Groups
>> "Crypto++ Users" group.
>> To unsubscribe from this group and stop receiving emails from it, send an
>> email to cryptopp-users+unsubscr...@googlegroups.com.
>> To view this discussion on the web visit
>> https://groups.google.com/d/msgid/cryptopp-users/db9bad9f-be9e-4a25-a09f-d52ce28adec0n%40googlegroups.com
>> <https://groups.google.com/d/msgid/cryptopp-users/db9bad9f-be9e-4a25-a09f-d52ce28adec0n%40googlegroups.com?utm_medium=email&utm_source=footer>
>> .
>>
>
>
> --
> Kind Regards,
> Manish Kr. Sharma
> Digital Marketing Manager
>
> Website: www.brsoftech.com
> E-mail: manish.sha...@brsoftech.org
>
>
>
> --
> You received this message because you are subscribed to the Google Groups
> "Crypto++ Users" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to cryptopp-users+unsubscr...@googlegroups.com.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/cryptopp-users/CABUB1NSTdFJPHBeh9b-fqfjrQBUWVzDzjNdjYUAQpzBb9CQsZw%40mail.gmail.com
> <https://groups.google.com/d/msgid/cryptopp-users/CABUB1NSTdFJPHBeh9b-fqfjrQBUWVzDzjNdjYUAQpzBb9CQsZw%40mail.gmail.com?utm_medium=email&utm_source=footer>
> .
>
--
You received this message because you are subscribed to the Google Groups
"Crypto++ Users" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to cryptopp-users+unsubscr...@googlegroups.com.
To view this discussion on the web visit
https://groups.google.com/d/msgid/cryptopp-users/CAJm61-AqjXEm-753YkgaD29QKQb61q3S%2B7_OHgkg3YX6D2ZWtQ%40mail.gmail.com.
