Re: Re: SonarLint complaining about "Use a stronger padding scheme"
One Sini <[email protected]> Wed, 24 Apr 2024 19:59:32 +0200
| Newsgroups | gmane.comp.encryption.cryptopp |
|---|---|
| Message-ID | <CAJm61-B7i_DO76rM5fWiRd83Zexkj=T674gjMMJ6Q55oX85BGA@mail.gmail.com> |
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This code demonstrates how to load an X509 certificate and private/public
keys from files.
#include <iostream>
#include <fstream>
#include <string>
#include <cryptopp/rsa.h>
#include <cryptopp/files.h>
#include <cryptopp/base64.h>
#include <cryptopp/osrng.h>
#include <cryptopp/pssr.h>
using namespace CryptoPP;
using namespace std;
void loadX509Certificate(const string& certFile, X509Certificate&
certificate) {
ifstream file(certFile.c_str(), ios::in | ios::binary);
if (!file) {
cerr << "Error: Failed to open certificate file." << endl;
// Handle error appropriately
return;
}
try {
PEM_Load(file, certificate);
} catch (const Exception& ex) {
cerr << "Error: Failed to load X509 certificate - " << ex.what() <<
endl;
// Handle error appropriately
return;
}
}
void loadPrivateKey(const string& privateKeyFile, RSA::PrivateKey&
privateKey) {
ifstream file(privateKeyFile.c_str());
if (!file) {
cerr << "Error: Failed to open private key file." << endl;
// Handle error appropriately
return;
}
try {
PEM_Load(file, privateKey);
} catch (const Exception& ex) {
cerr << "Error: Failed to load private key - " << ex.what() << endl=
;
// Handle error appropriately
return;
}
}
void loadPublicKey(const string& publicKeyFile, RSA::PublicKey& publicKey) =
{
ifstream file(publicKeyFile.c_str());
if (!file) {
cerr << "Error: Failed to open public key file." << endl;
// Handle error appropriately
return;
}
try {
PEM_Load(file, publicKey);
} catch (const Exception& ex) {
cerr << "Error: Failed to load public key - " << ex.what() << endl;
// Handle error appropriately
return;
}
}
int main() {
string certFile =3D "certificate.pem";
string privateKeyFile =3D "private.key";
string publicKeyFile =3D "public.key";
X509Certificate certificate;
RSA::PrivateKey privateKey;
RSA::PublicKey publicKey;
loadX509Certificate(certFile, certificate);
loadPrivateKey(privateKeyFile, privateKey);
loadPublicKey(publicKeyFile, publicKey);
// Continue with using the certificate and keys...
return 0;
}
One Sini <[email protected]> schrieb am Mi. 24. Apr. 2024 um 19:51:
> Test this way
>
> a basic guide on how to generate an RSA key pair with PSS padding, sign a=
n
> 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 =3D RSA::PrivateKey(params);
>
> publicKey =3D 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 availabl=
e
>
> 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 =3D 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 <[email protected]> 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=E2=80=AFPM Frank Sapone <franksaponegea@gma=
il.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 achiev=
e
>>> this with X509 Certs.
>>>
>>> Thanks,
>>> Frank
>>>
>>> On Wednesday, April 17, 2024 at 11:43:54=E2=80=AFAM UTC-4 HELA YAICH wr=
ote:
>>>
>>>> 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 targe=
t
>>>> 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=E2=80=99=C3=A9cran 2024-04-17 114345.png]
>>>>
>>>> Le mardi 16 avril 2024 =C3=A0 21:53:22 UTC-5, Frank Sapone a =C3=A9cri=
t :
>>>>
>>>>> I grabbed it but it's not relevant. I need to have a certificate wit=
h
>>>>> RSA PSS that can be read by CryptoPP with the X509Cert lib. Is it po=
ssible
>>>>> to do this?
>>>>>
>>>>> On Tuesday, April 16, 2024 at 3:19:47=E2=80=AFPM UTC-4 Jeffrey Walton=
wrote:
>>>>>
>>>>>> On Tue, Apr 16, 2024 at 1:44=E2=80=AFPM 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 doin=
g 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 o=
f
>>>>>> malware.
>>>>>>
>>>>>> If you want to provide code, please inline it or provide it as a tex=
t
>>>>>> 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 [email protected].
>>> To view this discussion on the web visit
>>> https://groups.google.com/d/msgid/cryptopp-users/db9bad9f-be9e-4a25-a09=
f-d52ce28adec0n%40googlegroups.com
>>> <https://groups.google.com/d/msgid/cryptopp-users/db9bad9f-be9e-4a25-a0=
9f-d52ce28adec0n%40googlegroups.com?utm_medium=3Demail&utm_source=3Dfooter>
>>> .
>>>
>>
>>
>> --
>> Kind Regards,
>> Manish Kr. Sharma
>> Digital Marketing Manager
>>
>> Website: www.brsoftech.com
>> E-mail: [email protected]
>>
>>
>>
>> --
>> You received this message because you are subscribed to the Google Group=
s
>> "Crypto++ Users" group.
>> To unsubscribe from this group and stop receiving emails from it, send a=
n
>> email to [email protected].
>> To view this discussion on the web visit
>> https://groups.google.com/d/msgid/cryptopp-users/CABUB1NSTdFJPHBeh9b-fqf=
jrQBUWVzDzjNdjYUAQpzBb9CQsZw%40mail.gmail.com
>> <https://groups.google.com/d/msgid/cryptopp-users/CABUB1NSTdFJPHBeh9b-fq=
fjrQBUWVzDzjNdjYUAQpzBb9CQsZw%40mail.gmail.com?utm_medium=3Demail&utm_sourc=
e=3Dfooter>
>> .
>>
>
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<div>
<div>
<p><div><span style=3D"color:rgb(0,0,0);font-family:'-apple-system'=
,'helveticaneue';font-size:16px;font-style:normal;font-weight:400;l=
etter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal=
;word-spacing:0px;text-decoration:none;display:inline!important;float:none"=
>This code demonstrates how to load an X509 certificate and private/public =
keys from files.=C2=A0</span></div><p><br></p>#include <iostream></p>
<p>#include <fstream></p>
<p>#include <string></p>
<p><br></p>
<p>#include <cryptopp/rsa.h></p>
<p>#include <cryptopp/files.h></p>
<p>#include <cryptopp/base64.h></p>
<p>#include <cryptopp/osrng.h></p>
<p>#include <cryptopp/pssr.h></p>
<p><br></p>
<p>using namespace CryptoPP;</p>
<p>using namespace std;</p>
<p><br></p>
<p>void loadX509Certificate(const string& certFile, X509Certificate&=
; certificate) {</p>
<p>=C2=A0 =C2=A0 ifstream file(certFile.c_str(), ios::in | ios::binary);</p=
>
<p>=C2=A0 =C2=A0 if (!file) {</p>
<p>=C2=A0 =C2=A0 =C2=A0 =C2=A0 cerr << "Error: Failed to open ce=
rtificate file." << endl;</p>
<p>=C2=A0 =C2=A0 =C2=A0 =C2=A0 // Handle error appropriately</p>
<p>=C2=A0 =C2=A0 =C2=A0 =C2=A0 return;</p>
<p>=C2=A0 =C2=A0 }</p>
<p><br></p>
<p>=C2=A0 =C2=A0 try {</p>
<p>=C2=A0 =C2=A0 =C2=A0 =C2=A0 PEM_Load(file, certificate);</p>
<p>=C2=A0 =C2=A0 } catch (const Exception& ex) {</p>
<p>=C2=A0 =C2=A0 =C2=A0 =C2=A0 cerr << "Error: Failed to load X5=
09 certificate - " << ex.what() << endl;</p>
<p>=C2=A0 =C2=A0 =C2=A0 =C2=A0 // Handle error appropriately</p>
<p>=C2=A0 =C2=A0 =C2=A0 =C2=A0 return;</p>
<p>=C2=A0 =C2=A0 }</p>
<p>}</p>
<p><br></p>
<p>void loadPrivateKey(const string& privateKeyFile, RSA::PrivateKey&am=
p; privateKey) {</p>
<p>=C2=A0 =C2=A0 ifstream file(privateKeyFile.c_str());</p>
<p>=C2=A0 =C2=A0 if (!file) {</p>
<p>=C2=A0 =C2=A0 =C2=A0 =C2=A0 cerr << "Error: Failed to open pr=
ivate key file." << endl;</p>
<p>=C2=A0 =C2=A0 =C2=A0 =C2=A0 // Handle error appropriately</p>
<p>=C2=A0 =C2=A0 =C2=A0 =C2=A0 return;</p>
<p>=C2=A0 =C2=A0 }</p>
<p><br></p>
<p>=C2=A0 =C2=A0 try {</p>
<p>=C2=A0 =C2=A0 =C2=A0 =C2=A0 PEM_Load(file, privateKey);</p>
<p>=C2=A0 =C2=A0 } catch (const Exception& ex) {</p>
<p>=C2=A0 =C2=A0 =C2=A0 =C2=A0 cerr << "Error: Failed to load pr=
ivate key - " << ex.what() << endl;</p>
<p>=C2=A0 =C2=A0 =C2=A0 =C2=A0 // Handle error appropriately</p>
<p>=C2=A0 =C2=A0 =C2=A0 =C2=A0 return;</p>
<p>=C2=A0 =C2=A0 }</p>
<p>}</p>
<p><br></p>
<p>void loadPublicKey(const string& publicKeyFile, RSA::PublicKey& =
publicKey) {</p>
<p>=C2=A0 =C2=A0 ifstream file(publicKeyFile.c_str());</p>
<p>=C2=A0 =C2=A0 if (!file) {</p>
<p>=C2=A0 =C2=A0 =C2=A0 =C2=A0 cerr << "Error: Failed to open pu=
blic key file." << endl;</p>
<p>=C2=A0 =C2=A0 =C2=A0 =C2=A0 // Handle error appropriately</p>
<p>=C2=A0 =C2=A0 =C2=A0 =C2=A0 return;</p>
<p>=C2=A0 =C2=A0 }</p>
<p><br></p>
<p>=C2=A0 =C2=A0 try {</p>
<p>=C2=A0 =C2=A0 =C2=A0 =C2=A0 PEM_Load(file, publicKey);</p>
<p>=C2=A0 =C2=A0 } catch (const Exception& ex) {</p>
<p>=C2=A0 =C2=A0 =C2=A0 =C2=A0 cerr << "Error: Failed to load pu=
blic key - " << ex.what() << endl;</p>
<p>=C2=A0 =C2=A0 =C2=A0 =C2=A0 // Handle error appropriately</p>
<p>=C2=A0 =C2=A0 =C2=A0 =C2=A0 return;</p>
<p>=C2=A0 =C2=A0 }</p>
<p>}</p>
<p><br></p>
<p>int main() {</p>
<p>=C2=A0 =C2=A0 string certFile =3D "certificate.pem";</p>
<p>=C2=A0 =C2=A0 string privateKeyFile =3D "private.key";</p>
<p>=C2=A0 =C2=A0 string publicKeyFile =3D "public.key";</p>
<p><br></p>
<p>=C2=A0 =C2=A0 X509Certificate certificate;</p>
<p>=C2=A0 =C2=A0 RSA::PrivateKey privateKey;</p>
<p>=C2=A0 =C2=A0 RSA::PublicKey publicKey;</p>
<p><br></p>
<p>=C2=A0 =C2=A0 loadX509Certificate(certFile, certificate);</p>
<p>=C2=A0 =C2=A0 loadPrivateKey(privateKeyFile, privateKey);</p>
<p>=C2=A0 =C2=A0 loadPublicKey(publicKeyFile, publicKey);</p>
<p><br></p>
<p>=C2=A0 =C2=A0 // Continue with using the certificate and keys...</p>
<p><br></p>
<p>=C2=A0 =C2=A0 return 0;</p>
<p>}</p>
<p><br></p>
<p><br></p></div></div><div><div class=3D"gmail_quote"><div dir=3D"ltr" cla=
ss=3D"gmail_attr">One Sini <<a href=3D"mailto:[email protected]">onesini=
@gmail.com</a>> schrieb am Mi. 24. Apr. 2024 um 19:51:<br></div><blockqu=
ote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc s=
olid;padding-left:1ex"><div dir=3D"auto">Test this way</div><div dir=3D"aut=
o"><br></div><div dir=3D"auto"><div>
<div>
<p>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:</p>
<ol><li>Generating an RSA Key Pair with PSS Padding:</li></ol>
<p>cpp</p>
<p>Copy code<br></p>
<p>#include <cryptopp/rsa.h></p>
<p>#include <cryptopp/osrng.h></p>
<p>#include <cryptopp/pssr.h></p>
<p><br></p>
<p>using namespace CryptoPP;</p>
<p><br></p>
<p>void generateRSAKeyPair(RSA::PrivateKey& privateKey, RSA::PublicKey&=
amp; publicKey) {</p>
<p>=C2=A0 =C2=A0 AutoSeededRandomPool rng;</p>
<p><br></p>
<p>=C2=A0 =C2=A0 InvertibleRSAFunction params;</p>
<p>=C2=A0 =C2=A0 params.GenerateRandomWithKeySize(rng, 2048);</p>
<p><br></p>
<p>=C2=A0 =C2=A0 privateKey =3D RSA::PrivateKey(params);</p>
<p>=C2=A0 =C2=A0 publicKey =3D RSA::PublicKey(params);</p>
<p>}</p>
<p><br></p>
<p>int main() {</p>
<p>=C2=A0 =C2=A0 RSA::PrivateKey privateKey;</p>
<p>=C2=A0 =C2=A0 RSA::PublicKey publicKey;</p>
<p><br></p>
<p>=C2=A0 =C2=A0 generateRSAKeyPair(privateKey, publicKey);</p>
<p><br></p>
<p>=C2=A0 =C2=A0 // The RSA key pair has been generated and is now availabl=
e</p>
<p>=C2=A0 =C2=A0 return 0;</p>
<p>}</p>
<ol><li>Signing the X509 Certificate with the Private Key:</li></ol>
<p>cpp</p>
<p><br></p>
<p>Copy code</p>
<p>#include <cryptopp/cryptlib.h></p>
<p>#include <cryptopp/oids.h></p>
<p>#include <cryptopp/rsa.h></p>
<p>#include <cryptopp/sha.h></p>
<p>#include <cryptopp/filters.h></p>
<p>#include <cryptopp/base64.h></p>
<p><br></p>
<p>using namespace CryptoPP;</p>
<p><br></p>
<p>void signCertificate(const RSA::PrivateKey& privateKey, const X509&a=
mp; certificate, byte* signature) {</p>
<p>=C2=A0 =C2=A0 // Implement the process of signing the certificate here</=
p>
<p>=C2=A0 =C2=A0 // Use privateKey and certificate to sign the certificate<=
/p>
<p>}</p>
<p><br></p>
<p>int main() {</p>
<p>=C2=A0 =C2=A0 // Load or create your X509 certificate</p>
<p>=C2=A0 =C2=A0 // Here, we assume you already have an X509 certificate</p=
>
<p><br></p>
<p>=C2=A0 =C2=A0 RSA::PrivateKey privateKey;</p>
<p>=C2=A0 =C2=A0 // Load or generate your private key</p>
<p>=C2=A0 =C2=A0 // Here, we assume you already have a private key</p>
<p><br></p>
<p>=C2=A0 =C2=A0 byte signature[256]; // Space for the signature</p>
<p><br></p>
<p>=C2=A0 =C2=A0 signCertificate(privateKey, certificate, signature);</p>
<p><br></p>
<p>=C2=A0 =C2=A0 // The certificate has been signed, and the signature is n=
ow available</p>
<p>=C2=A0 =C2=A0 return 0;</p>
<p>}</p>
<ol><li>Verifying the Signature with the Public Key:</li></ol>
<p>cpp</p>
<p><br></p>
<p>Copy code</p>
<p>#include <cryptopp/rsa.h></p>
<p>#include <cryptopp/sha.h></p>
<p>#include <cryptopp/filters.h></p>
<p>#include <cryptopp/base64.h></p>
<p><br></p>
<p>using namespace CryptoPP;</p>
<p><br></p>
<p>bool verifySignature(const RSA::PublicKey& publicKey, const X509&=
; certificate, const byte* signature) {</p>
<p>=C2=A0 =C2=A0 // Implement the process of verifying the signature here</=
p>
<p>=C2=A0 =C2=A0 // Use publicKey, certificate, and signature</p>
<p><br></p>
<p>=C2=A0 =C2=A0 // Return true if the signature is valid, otherwise false<=
/p>
<p>=C2=A0 =C2=A0 return false;</p>
<p>}</p>
<p><br></p>
<p>int main() {</p>
<p>=C2=A0 =C2=A0 // Load or create your X509 certificate</p>
<p>=C2=A0 =C2=A0 // Here, we assume you already have an X509 certificate</p=
>
<p><br></p>
<p>=C2=A0 =C2=A0 RSA::PublicKey publicKey;</p>
<p>=C2=A0 =C2=A0 // Load or generate your public key</p>
<p>=C2=A0 =C2=A0 // Here, we assume you already have a public key</p>
<p><br></p>
<p>=C2=A0 =C2=A0 byte signature[256]; // Take the signature from the certif=
icate signature</p>
<p><br></p>
<p>=C2=A0 =C2=A0 bool isValid =3D verifySignature(publicKey, certificate, s=
ignature);</p>
<p><br></p>
<p>=C2=A0 =C2=A0 // Check if the signature is valid</p>
<p>=C2=A0 =C2=A0 return 0;</p>
<p>}</p>
<p>These code snippets serve as a foundation. You will need to adapt them a=
ccording to your specific implementation, including the loading process for=
the X509 certificate and the private/public keys. Remember to include erro=
r handling and handle edge cases in your implementation</p>
</div>
</div>I hope this help you</div><div dir=3D"auto">;)</div><div><br><div cla=
ss=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">Manish sharma <=
<a href=3D"mailto:[email protected]" target=3D"_blank">manish.sha=
[email protected]</a>> schrieb am Mi. 24. Apr. 2024 um 14:42:<br></div><=
blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px=
#ccc solid;padding-left:1ex"><div dir=3D"ltr"><a href=3D"https://www.brsof=
tech.com/blog/crypto-sports-betting/" target=3D"_blank">Crypto Betting=C2=
=A0</a></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail=
_attr">On Wed, Apr 24, 2024 at 6:08=E2=80=AFPM Frank Sapone <<a href=3D"=
mailto:[email protected]" target=3D"_blank">[email protected]=
</a>> wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:=
0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">=
Has anyone figured out how to use PSS and SHA256 <b><i>WITH</i>=C2=A0</b>Cr=
yptoPP-PEM?=C2=A0 I also tried reporting this to the issuer tracker at=C2=
=A0<a href=3D"https://github.com/noloader/cryptopp-pem" target=3D"_blank">h=
ttps://github.com/noloader/cryptopp-pem</a> and nobody has replied.=C2=A0 I=
can't imagine I'm the only person using this library in order to a=
chieve this with X509 Certs.<div><br></div><div>Thanks,<br>Frank<br><div><b=
r></div></div><div class=3D"gmail_quote"><div dir=3D"auto" class=3D"gmail_a=
ttr">On Wednesday, April 17, 2024 at 11:43:54=E2=80=AFAM UTC-4 HELA YAICH w=
rote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0p=
x 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hello,=C2=
=A0<br>(I'm new user of ns3 and crypto)=C2=A0<br>I have link errors wit=
h Crypto++. These errors indicate that the compiler cannot find certain fun=
ctions or classes defined in Crypto++. This can happen if Crypto++ is not c=
orrectly linked to my project. However, I tried to modify my project's =
CMakeLists.txt file as follows: <br>set(target_prefix scratch_)<br><br>func=
tion(create_scratch source_files)<br>=C2=A0 # Return early if no sources in=
the subdirectory<br>=C2=A0 list(LENGTH source_files number_sources)<br>=C2=
=A0 if(number_sources EQUAL 0)<br>=C2=A0 =C2=A0 return()<br>=C2=A0 endif()<=
br><br>=C2=A0 # If the scratch has more than a source file, we need to find=
the source with<br>=C2=A0 # the main function<br>=C2=A0 set(scratch_src)<b=
r>=C2=A0 foreach(source_file ${source_files})<br>=C2=A0 =C2=A0 file(READ ${=
source_file} source_file_contents)<br>=C2=A0 =C2=A0 string(REGEX MATCHALL &=
quot;main[(| (]" main_position "${source_file_contents}")<br=
>=C2=A0 =C2=A0 if(CMAKE_MATCH_0)<br>=C2=A0 =C2=A0 =C2=A0 set(scratch_src ${=
source_file})<br>=C2=A0 =C2=A0 endif()<br>=C2=A0 endforeach()<br><br>=C2=A0=
if(NOT scratch_src)<br>=C2=A0 =C2=A0 return()<br>=C2=A0 endif()<br><br>=C2=
=A0 # Get parent directory name<br>=C2=A0 get_filename_component(scratch_di=
rname ${scratch_src} DIRECTORY)<br>=C2=A0 string(REPLACE "${CMAKE_CURR=
ENT_SOURCE_DIR}" "" scratch_dirname<br>=C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0"${scratch_dirname}"<br>=
=C2=A0 )<br>=C2=A0 string(REPLACE "/" "_" scratch_dirna=
me "${scratch_dirname}")<br><br>=C2=A0 # Get source name<br>=C2=
=A0 get_filename_component(scratch_name ${scratch_src} NAME_WE)<br><br>=C2=
=A0 set(target_prefix scratch_)<br>=C2=A0 if(scratch_dirname)<br>=C2=A0 =C2=
=A0 # Join the names together if dirname is not the scratch folder<br>=C2=
=A0 =C2=A0 set(target_prefix scratch${scratch_dirname}_)<br>=C2=A0 endif()<=
br><br>=C2=A0 # Get source absolute path and transform into relative path<b=
r>=C2=A0 get_filename_component(scratch_src ${scratch_src} ABSOLUTE)<br>=C2=
=A0 get_filename_component(scratch_absolute_directory ${scratch_src} DIRECT=
ORY)<br>=C2=A0 string(REPLACE "${PROJECT_SOURCE_DIR}" "${CMA=
KE_OUTPUT_DIRECTORY}"<br>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0scratch_directory ${scratch_absolute_directory}<br>=C2=A0 =
)<br>=C2=A0 add_executable(${target_prefix}${scratch_name} "${source_f=
iles}")<br>=C2=A0 if(${NS3_STATIC})<br>=C2=A0 =C2=A0 target_link_libra=
ries(<br>=C2=A0 =C2=A0 =C2=A0 ${target_prefix}${scratch_name} ${LIB_AS_NEED=
ED_PRE_STATIC}<br>=C2=A0 =C2=A0 =C2=A0 ${lib-ns3-static}<br>=C2=A0 =C2=A0 )=
<br>=C2=A0 else()<br>=C2=A0 =C2=A0 target_link_libraries(<br>=C2=A0 =C2=A0 =
=C2=A0 ${target_prefix}${scratch_name} "${ns3-libs}" "${ns3-=
contrib-libs}"<br>=C2=A0 =C2=A0 =C2=A0 "${ns3-external-libs}"=
;<br>=C2=A0 =C2=A0 )<br>=C2=A0 endif()<br>=C2=A0 set_runtime_outputdirector=
y(<br>=C2=A0 =C2=A0 ${scratch_name} ${scratch_directory}/ ${target_prefix}<=
br>=C2=A0 )<br>endfunction()<br><br># Scan *.cc files in ns-3-dev/scratch a=
nd build a target for each<br>file(GLOB single_source_file_scratches CONFIG=
URE_DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/*.cc)<br>foreach(scratch_src ${sing=
le_source_file_scratches})<br>=C2=A0 create_scratch(${scratch_src})<br>endf=
oreach()<br><br># Scan *.cc files in ns-3-dev/scratch subdirectories and bu=
ild a target for each<br># subdirectory<br>file(<br>=C2=A0 GLOB_RECURSE scr=
atch_subdirectories<br>=C2=A0 CONFIGURE_DEPENDS<br>=C2=A0 LIST_DIRECTORIES =
true<br>=C2=A0 ${CMAKE_CURRENT_SOURCE_DIR}/**<br>)<br># Filter out files<br=
>foreach(entry ${scratch_subdirectories})<br>=C2=A0 if(NOT (IS_DIRECTORY ${=
entry}))<br>=C2=A0 =C2=A0 list(REMOVE_ITEM scratch_subdirectories ${entry})=
<br>=C2=A0 endif()<br>endforeach()<br><br>foreach(subdir ${scratch_subdirec=
tories})<br>=C2=A0 if(EXISTS ${subdir}/CMakeLists.txt)<br>=C2=A0 =C2=A0 # I=
f the subdirectory contains a CMakeLists.txt file<br>=C2=A0 =C2=A0 # we let=
the CMake file manage the source files<br>=C2=A0 =C2=A0 #<br>=C2=A0 =C2=A0=
# Use this if you want to link to external libraries<br>=C2=A0 =C2=A0 # wi=
thout creating a module<br>=C2=A0 =C2=A0 add_subdirectory(${subdir})<br>=C2=
=A0 else()<br>=C2=A0 =C2=A0 # Otherwise we pick all the files in the subdir=
ectory<br>=C2=A0 =C2=A0 # and create a scratch for them automatically<br>=
=C2=A0 =C2=A0 file(GLOB scratch_sources CONFIGURE_DEPENDS ${subdir}/*.cc)<b=
r>=C2=A0 =C2=A0 create_scratch("${scratch_sources}")<br>=C2=A0 en=
dif()<br>endforeach()<br>find_external_library(DEPENDENCY_NAME cryptopp<br>=
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 HEADER_NAME aes.h<br>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0 LIBRARY_NAME cryptopp<br>=C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 SEARCH_PATHS /usr/i=
nclude/cryptopp)<br><br><br>if(${CRYPTOPP_FOUND}) # Notice that the content=
s of DEPENDENCY_NAME became a prefix for the _FOUND variable<br>=C2=A0 =C2=
=A0 find_package(cryptopp REQUIRED)<br>=C2=A0 =C2=A0 include_directories(${=
CRYPTOPP_INCLUDE_DIRS})<br>=C2=A0 =C2=A0 link_libraries(${CRYPTOPP_LIBRARIE=
S})<br>endif()<br>add_executable(${target_prefix}${scratch_name} "fane=
tex.cc")<br>target_link_libraries(${target_prefix}${scratch_name} PRIV=
ATE cryptopp)<br><br>can you help me to solve this problem ? Thank you=C2=
=A0<img alt=3D"Capture d=E2=80=99=C3=A9cran 2024-04-17 114345.png" width=3D=
"631px" height=3D"398px" src=3D"https://groups.google.com/group/cryptopp-us=
ers/attach/1f8b7a2cdb789/Capture%20d%E2%80%99%C3%A9cran%202024-04-17%201143=
45.png?part=3D0.1&view=3D1"><br><br><div class=3D"gmail_quote"><div dir=
=3D"auto" class=3D"gmail_attr">Le mardi 16 avril 2024 =C3=A0 21:53:22 UTC-5=
, Frank Sapone a =C3=A9crit=C2=A0:<br></div><blockquote class=3D"gmail_quot=
e" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204)=
;padding-left:1ex">I grabbed it but it's not relevant.=C2=A0 I need to =
have a certificate with RSA PSS that can be read by CryptoPP with the X509C=
ert lib.=C2=A0 Is it possible to do this?<br><br><div class=3D"gmail_quote"=
><div dir=3D"auto" class=3D"gmail_attr">On Tuesday, April 16, 2024 at 3:19:=
47=E2=80=AFPM UTC-4 Jeffrey Walton wrote:<br></div><blockquote class=3D"gma=
il_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,2=
04,204);padding-left:1ex"><div dir=3D"ltr"><div class=3D"gmail_quote"><div =
dir=3D"ltr" class=3D"gmail_attr">On Tue, Apr 16, 2024 at 1:44=E2=80=AFPM On=
e Sini <<a rel=3D"nofollow">[email protected]</a>> wrote:<br></div></d=
iv></div><div dir=3D"ltr"><div class=3D"gmail_quote"><blockquote class=3D"g=
mail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204=
,204,204);padding-left:1ex"><div dir=3D"auto"><div><span style=3D"font-fami=
ly:s=C3=B6hne,ui-sans-serif,system-ui,-apple-system,"segoe ui",ro=
boto,ubuntu,cantarell,"noto sans",sans-serif,"helvetica neue=
",arial,"apple color emoji","segoe ui emoji","=
;segoe ui symbol","noto color emoji";font-size:16px;font-sty=
le:normal;font-weight:400;letter-spacing:normal;text-indent:0px;text-transf=
orm:none;white-space:pre-wrap;word-spacing:0px;text-decoration:none;float:n=
one;display:inline;color:rgb(13,13,13)">I wasn't entirely satisfied wit=
h the security, so I've adjusted the code. I'm not sure if that hel=
ps you, depending on what you're doing with it.</span></div><br></div><=
/blockquote></div></div><div dir=3D"ltr"><div class=3D"gmail_quote"><blockq=
uote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1p=
x solid rgb(204,204,204);padding-left:1ex"><div dir=3D"auto"><div><span sty=
le=3D"font-family:s=C3=B6hne,ui-sans-serif,system-ui,-apple-system,"se=
goe ui",roboto,ubuntu,cantarell,"noto sans",sans-serif,"=
;helvetica neue",arial,"apple color emoji","segoe ui em=
oji","segoe ui symbol","noto color emoji";font-siz=
e:16px;font-style:normal;font-weight:400;letter-spacing:normal;text-indent:=
0px;text-transform:none;white-space:pre-wrap;word-spacing:0px;text-decorati=
on:none;float:none;display:inline;color:rgb(13,13,13)">This code uses RSA w=
ith OAEP (Optimal Asymmetric Encryption Padding) to avoid security issues l=
ike padding oracle attacks. It generates RSA keys with a length of 2048 bit=
s, encrypts the message with OAEP padding, and then decrypts it.</span></di=
v><div dir=3D"auto"><span style=3D"font-family:s=C3=B6hne,ui-sans-serif,sys=
tem-ui,-apple-system,"segoe ui",roboto,ubuntu,cantarell,"not=
o sans",sans-serif,"helvetica neue",arial,"apple color =
emoji","segoe ui emoji","segoe ui symbol","no=
to color emoji";font-size:16px;font-style:normal;font-weight:400;lette=
r-spacing:normal;text-indent:0px;text-transform:none;white-space:pre-wrap;w=
ord-spacing:0px;text-decoration:none;float:none;display:inline;color:rgb(13=
,13,13)"><br></span></div></div></blockquote></div></div><div dir=3D"ltr"><=
div class=3D"gmail_quote"><blockquote class=3D"gmail_quote" style=3D"margin=
:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"=
><div dir=3D"auto"><div dir=3D"auto"><span style=3D"font-family:s=C3=B6hne,=
ui-sans-serif,system-ui,-apple-system,"segoe ui",roboto,ubuntu,ca=
ntarell,"noto sans",sans-serif,"helvetica neue",arial,&=
quot;apple color emoji","segoe ui emoji","segoe ui symb=
ol","noto color emoji";font-size:16px;font-style:normal;font=
-weight:400;letter-spacing:normal;text-indent:0px;text-transform:none;white=
-space:pre-wrap;word-spacing:0px;text-decoration:none;float:none;display:in=
line;color:rgb(13,13,13)">Best Regards Satoshi </span></div></div></blockqu=
ote><div><br></div><div>I deleted the message from the group. The *.pdf and=
*.pages smells of malware.</div><div><br></div><div>If you want to provide=
code, please inline it or provide it as a text attachment.<br></div><div><=
br></div><div>Jeff</div><blockquote class=3D"gmail_quote" style=3D"margin:0=
px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><=
div><div class=3D"gmail_quote"><blockquote class=3D"gmail_quote" style=3D"m=
argin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left=
:1ex">
</blockquote></div></div></blockquote></div></div>
</blockquote></div></blockquote></div></blockquote></div>
<p></p>
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</blockquote></div><br clear=3D"all"><div><br></div><span class=3D"gmail_si=
gnature_prefix">-- </span><br><div dir=3D"ltr" class=3D"gmail_signature"><d=
iv dir=3D"ltr"><div style=3D"text-align:left"><span style=3D"font-family:ar=
ial,sans-serif"><font color=3D"#9900ff">Kind Regards,=C2=A0</font></span></=
div><div style=3D"text-align:left"><font color=3D"#9900ff">Manish Kr. Sharm=
a=C2=A0</font></div><div style=3D"text-align:left"><font color=3D"#9900ff">=
Digital Marketing Manager<br></font></div><div style=3D"text-align:left"><f=
ont color=3D"#9900ff"><br></font></div><div style=3D"text-align:left"><span=
style=3D"color:rgb(153,0,255)">Website:=C2=A0</span><a href=3D"http://www.=
brsoftech.com" target=3D"_blank">www.brsoftech.com</a><br></div><div style=
=3D"text-align:left"><font color=3D"#9900ff">E-mail: <a href=3D"mailto:mani=
[email protected]" target=3D"_blank">[email protected]</a><=
/font></div><div style=3D"text-align:left"><img src=3D"https://i.imgur.com/=
ilarMcr.png" width=3D"96" height=3D"96"><br></div><div><br></div><div><br><=
/div></div></div>
<p></p>
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--0000000000006460480616db6fa2--