Thank you for the prompt response. :) Yes I am planning to use a new KEY for each message. (Keeping the IV/nonce same)
How about AES-GCM-GMAC? Is it same as AES-GCM? Is AES-GCM-SIV patent free? Does cryptopp provide AES-GCM-SIV library? > On Feb 25, 2021, at 5:04 PM, Uri Blumenthal <mouse...@gmail.com> wrote: > > What is your threat model? > > If you can guarantee that a combination of Key + Nonce will not repeat, > AES-GCM is a better choice. > > AES-GCM is a yesterday's achievement. A smarter and a more secure altogether > choice today is AES-GCM-SIV. > > CBC + HMAC is/was before yesterday. > >> On Feb 25, 2021, at 14:39, Devharsh Trivedi <devharsh.1...@gmail.com> wrote: >> >> Which of the following is more secure? >> 1. AES-GCM (AEAD) >> 2. AES-CBC+HMAC (EtA) >> >> Ref.: https://www.cryptopp.com/wiki/Authenticated_Encryption >> >> >> -- >> 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 <http://www.cryptopp.com/> and >> http://groups.google.com/forum/#!forum/cryptopp-users >> <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 >> <mailto:cryptopp-users+unsubscr...@googlegroups.com>. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/cryptopp-users/52d33781-53bb-48e9-a895-c996c1254410n%40googlegroups.com >> >> <https://groups.google.com/d/msgid/cryptopp-users/52d33781-53bb-48e9-a895-c996c1254410n%40googlegroups.com?utm_medium=email&utm_source=footer>. > > > -- > 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 <http://www.cryptopp.com/> and > http://groups.google.com/forum/#!forum/cryptopp-users > <http://groups.google.com/forum/#!forum/cryptopp-users>. > --- > You received this message because you are subscribed to a topic in the Google > Groups "Crypto++ Users" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/cryptopp-users/YWPsZ0XmXiU/unsubscribe > <https://groups.google.com/d/topic/cryptopp-users/YWPsZ0XmXiU/unsubscribe>. > To unsubscribe from this group and all its topics, send an email to > cryptopp-users+unsubscr...@googlegroups.com > <mailto:cryptopp-users+unsubscr...@googlegroups.com>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/cryptopp-users/5A177871-94E1-487F-ABFB-4F88ADA7424D%40gmail.com > > <https://groups.google.com/d/msgid/cryptopp-users/5A177871-94E1-487F-ABFB-4F88ADA7424D%40gmail.com?utm_medium=email&utm_source=footer>. -- 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. To view this discussion on the web visit https://groups.google.com/d/msgid/cryptopp-users/77D6BD56-7A3C-4AAB-B727-7803BC79A47A%40gmail.com.
