Thank you for your reply. I am following this example - https://www.cryptopp.com/wiki/XChaCha20Poly1305
and trying to use std::string instead of byte instead of using byte array for ct like this dec.DecryptAndVerify(rt, mac, sizeof(mac), iv, sizeof(iv), aad, sizeof(aad), ct, sizeof(ct)); I am trying to use string like this std::string cipher; StringSource(ct, *sizeof*(ct), *true*, *new* HexEncoder(*new* StringSink(cipher))); *const* byte* xct = *reinterpret_cast*<*const* byte*>(cipher.data()); dec.DecryptAndVerify(rt, mac, sizeof(mac), iv, sizeof(iv), aad, sizeof(aad), xct, *sizeof*(xct)); but this doesn't seem to work On Saturday, 6 March 2021 at 04:45:58 UTC-5 Jeffrey Walton wrote: > On Friday, March 5, 2021 at 5:23:20 PM UTC-5 devhar...@gmail.com wrote: > >> I am trying to convert a std::string to cryptopp::byte like this >> const byte* pt = reinterpret_cast<const byte*>(&alert[0]); >> >> but it doesn't copy the full string, as confirmed by sizeof >> sizeof(alert) = 24 >> sizeof(pt) = 8 >> >> why is it truncating to first 8 bytes? >> > > pt is a pointer. A pointer on x86_64 is 8 bytes. > > 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/2bc2f089-3869-4cdd-86ce-99e26d560651n%40googlegroups.com.
