Thanks for your reply:) Maybe a warning or auto checker is better for someone who do not know details of AES-CTR like me
在 2018年7月6日星期五 UTC+8下午2:38:01，Weikeng Chen写道： > > The following code in modes.h > (https://github.com/weidai11/cryptopp/blob/master/modes.h#L300) shows > that IV will become BLOCKSIZE. > > CipherModeFinalTemplate_CipherHolder(const byte *key, size_t length, > const byte *iv) > { > this->m_cipher = &this->m_object; > this->SetKey(key, length, MakeParameters(Name::IV(), > ConstByteArrayParameter(iv, this->m_cipher->BlockSize()))); > } > > On Thu, Jul 5, 2018 at 11:35 PM, Jeffrey Walton <nolo...@gmail.com > <javascript:>> wrote: > > > > > > On Friday, July 6, 2018 at 2:23:00 AM UTC-4, 许皓宇 wrote: > >> > >> I've used cryptopp in my project recently, i try to use AES-CTR model > >> encryption. > >> > >> CryptoPP::CTR_Mode<CryptoPP::AES>::Encryption(const CryptoPP::byte* > key, > >> size_t length, const CryptoPP::byte* iv) > >> > >> This constructor provide a length check of key but do not check length > of > >> iv > > > > > > For that particular constructor the parameter iv must be BLOCKSIZE > bytes. > > > > There are other constructors available that takes an ivLength, too. > > > > Looking at the manual it is not well documented. For example, > > > https://www.cryptopp.com/docs/ref/class_cipher_mode_final_template___cipher_holder.html > > > . > > > > Let me get some updates added. > > > > Jeff > > > > -- > > You received this message because you are subscribed to "Crypto++ > Users". > > More information about Crypto++ and this group is available at > > http://www.cryptopp.com and > > http://groups.google.com/forum/#!forum/cryptopp-users. > > --- > > 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-user...@googlegroups.com <javascript:>. > > For more options, visit https://groups.google.com/d/optout. > > > > -- > > Weikeng Chen @ 795 Soda Hall > -- You received this message because you are subscribed to "Crypto++ Users". More information about Crypto++ and this group is available at http://www.cryptopp.com and http://groups.google.com/forum/#!forum/cryptopp-users. --- 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.
