Re: EXC_BAD_ACCESS (was: Linking problem in xcode)
Thanks Jeff, I am rather new in this, would you mind telling me how a key can be sent by reference? and how to invoke it? Many thanks On Saturday, August 12, 2017 at 6:05:11 AM UTC+10, Jeffrey Walton wrote: > > > > On Thursday, August 10, 2017 at 11:30:14 PM UTC-4, alido...@gmail.com > wrote: >> >> >> I installed crypto++ on my mac and try to run a simple code on xcode. I can create keys using the following: CryptoPP::AutoSeededRandomPool rng; CryptoPP::InvertibleRSAFunction param; param.GenerateRandomWithKeySize(rng,1536); CryptoPP::RSA::PrivateKey privatekey(param); CryptoPP::RSA::PublicKey publickey (param); prk.push_back(privatekey); pk.push_back(publickey); >>> >>> The push_back's look unusual. Do something else. >>> >> >> I tried with one public private key (without puch_back). Get the same >> error. >> > > I don't believe copy on PublicKey and PrivateKey is working as expected, > but I could be wrong because I did not attempt to run the code. Some > unusual things go on with those keys at times, like casting to a PrivateKey > to a PublicKey still results in a private key. I think its dangerous > especially if the key is being serialized. > > In your function, you should probably pass the key by reference. > > Jeff > > -- -- You received this message because you are subscribed to the "Crypto++ Users" Google Group. To unsubscribe, send an email to cryptopp-users-unsubscr...@googlegroups.com. More information about Crypto++ and this group is available at http://www.cryptopp.com. --- 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. For more options, visit https://groups.google.com/d/optout.
Re: EXC_BAD_ACCESS (was: Linking problem in xcode)
On Thursday, August 10, 2017 at 11:30:14 PM UTC-4, alido...@gmail.com wrote: > > > I installed crypto++ on my mac and try to run a simple code on xcode. I >>> can create keys using the following: >>> >>> CryptoPP::AutoSeededRandomPool rng; >>> >>> CryptoPP::InvertibleRSAFunction param; >>> >>> param.GenerateRandomWithKeySize(rng,1536); >>> >>> CryptoPP::RSA::PrivateKey privatekey(param); >>> >>> CryptoPP::RSA::PublicKey publickey (param); >>> >>> prk.push_back(privatekey); >>> >>> pk.push_back(publickey); >>> >> >> The push_back's look unusual. Do something else. >> > > I tried with one public private key (without puch_back). Get the same > error. > I don't believe copy on PublicKey and PrivateKey is working as expected, but I could be wrong because I did not attempt to run the code. Some unusual things go on with those keys at times, like casting to a PrivateKey to a PublicKey still results in a private key. I think its dangerous especially if the key is being serialized. In your function, you should probably pass the key by reference. Jeff -- -- You received this message because you are subscribed to the "Crypto++ Users" Google Group. To unsubscribe, send an email to cryptopp-users-unsubscr...@googlegroups.com. More information about Crypto++ and this group is available at http://www.cryptopp.com. --- 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. For more options, visit https://groups.google.com/d/optout.
Re: EXC_BAD_ACCESS (was: Linking problem in xcode)
On Friday, August 11, 2017 at 12:23:08 PM UTC+10, Jeffrey Walton wrote: > > > I installed crypto++ on my mac and try to run a simple code on xcode. I >> can create keys using the following: >> >> CryptoPP::AutoSeededRandomPool rng; >> >> CryptoPP::InvertibleRSAFunction param; >> >> param.GenerateRandomWithKeySize(rng,1536); >> >> CryptoPP::RSA::PrivateKey privatekey(param); >> >> CryptoPP::RSA::PublicKey publickey (param); >> >> prk.push_back(privatekey); >> >> pk.push_back(publickey); >> > > The push_back's look unusual. Do something else. > I tried with one public private key (without puch_back). Get the same error. > > If you show the code that calls the snippet above, we might be able to > suggest something. > > But when I try to sign a message it goes to threat. I do not know what to >> do with it. The exact threat message is: >> >> Thread 1: EXC_BAD_ACCESS >> >> >> I am using the following code to sign: >> >> CryptoPP::StringSource ss1(mes, true, >> >> new CryptoPP::SignerFilter(rng, signer, >> >>new CryptoPP::StringSink(signature) >> >> ) // SignerFilter >> >> ); // StringSource >> > > This looks OK. > > There's also some RSA examples on the wiki at > https://www.cryptopp.com/wiki/RSA_Cryptography. > > Jeff > -- -- You received this message because you are subscribed to the "Crypto++ Users" Google Group. To unsubscribe, send an email to cryptopp-users-unsubscr...@googlegroups.com. More information about Crypto++ and this group is available at http://www.cryptopp.com. --- 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. For more options, visit https://groups.google.com/d/optout.
Re: EXC_BAD_ACCESS (was: Linking problem in xcode)
Hi Jeff,
Many thanks. Enclosed is the whole codes.
//General paramters
int Network_Nodes =100; //This parameter is the total number of nodes in
the network. This is used to create public and private key pairs.
int Block_Size=10; // The size of blocks in the bc
int BC_lenght=0;// This indicates the lenghtes of the BC, i.e.
the total number of blocks added to the BC.
int Fin_BC_size =20;//This indicates the final size of the BC.
std::vector prk;
std::vector pk;
std::vector prev_t;//this keeps the ID of the
previous trnasaction for each node.
struct Block {
std::string block_hash;
std::string block_num;
struct transactions {
std::string TransactionID;
std::string previousTransactionID;
std::string PK;
std::string Sign;
};
std::vector trans;
};
std::vector BC;
//These are included for salsa
using CryptoPP::Salsa20;
using CryptoPP::AutoSeededRandomPool;
using std::cout;
using std::endl;
using std::string;
//End of encludes for Salsa
int generatekey()
{
for (int i=0;i::Signer
signer(prk[2]);
CryptoPP::AutoSeededRandomPool rng;
CryptoPP::RSASSA_PKCS1v15_SHA_Signer signer(prk[node]);
CryptoPP::StringSource ss1(mes, true,
new CryptoPP::SignerFilter(rng, signer,
new CryptoPP::
StringSink(signature)
) // SignerFilter
); // StringSource
/* CryptoPP::StringSource ss1(mes, true,
new CryptoPP::SignerFilter(rng, signer,
new CryptoPP::HexEncoder(
new CryptoPP::StringSink(signature;*/
// BC[BC_lenght].trans[stored_trans_in_block].Sign=signature;
}
pk[2].BEREncode(CryptoPP::StringSink(pkstring).Ref());
tra.PK = pkstring;
tra.previousTransactionID= " ";
tra.Sign=" ";
tra.TransactionID=" ";
BC[0].trans.push_back(tra);
}
int main(int argc, const char * argv[]) {
//1) create "Netwrok_Nodes" number of key pair sets
generatekey();
//2) initilaization
initialization();
//3) create blockchain with the above nodes.
populate_bc();
}
On Friday, August 11, 2017 at 12:23:08 PM UTC+10, Jeffrey Walton wrote:
>
>
> I installed crypto++ on my mac and try to run a simple code on xcode. I
>> can create keys using the following:
>>
>> CryptoPP::AutoSeededRandomPool rng;
>>
>> CryptoPP::InvertibleRSAFunction param;
>>
>> param.GenerateRandomWithKeySize(rng,1536);
>>
>> CryptoPP::RSA::PrivateKey privatekey(param);
>>
>> CryptoPP::RSA::PublicKey publickey (param);
>>
>> prk.push_back(privatekey);
>>
>> pk.push_back(publickey);
>>
>
> The push_back's look unusual. Do something else.
>
> If you show the code that calls the snippet above, we might be able to
> suggest something.
>
> But when I try to sign a message it
EXC_BAD_ACCESS (was: Linking problem in xcode)
> I installed crypto++ on my mac and try to run a simple code on xcode. I > can create keys using the following: > > CryptoPP::AutoSeededRandomPool rng; > > CryptoPP::InvertibleRSAFunction param; > > param.GenerateRandomWithKeySize(rng,1536); > > CryptoPP::RSA::PrivateKey privatekey(param); > > CryptoPP::RSA::PublicKey publickey (param); > > prk.push_back(privatekey); > > pk.push_back(publickey); > The push_back's look unusual. Do something else. If you show the code that calls the snippet above, we might be able to suggest something. But when I try to sign a message it goes to threat. I do not know what to > do with it. The exact threat message is: > > Thread 1: EXC_BAD_ACCESS > > > I am using the following code to sign: > > CryptoPP::StringSource ss1(mes, true, > > new CryptoPP::SignerFilter(rng, signer, > >new CryptoPP::StringSink(signature) > > ) // SignerFilter > > ); // StringSource > This looks OK. There's also some RSA examples on the wiki at https://www.cryptopp.com/wiki/RSA_Cryptography. Jeff -- -- You received this message because you are subscribed to the "Crypto++ Users" Google Group. To unsubscribe, send an email to cryptopp-users-unsubscr...@googlegroups.com. More information about Crypto++ and this group is available at http://www.cryptopp.com. --- 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. For more options, visit https://groups.google.com/d/optout.
