Re: AES Encryption Took Too Long on Arm64 Embedded Machine
Arik Agazarian <[email protected]> Sat, 4 Nov 2023 19:19:21 +0100
| Newsgroups | gmane.comp.encryption.cryptopp |
|---|---|
| Message-ID | <CAOLESwm4LQH9Ru=c6Q21-k3hz2QTf4Bt9ajBiE09hiHVx6Ob_A@mail.gmail.com> |
--000000000000a8f62c060957a972 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable We Need wallet address of 7 months for clean transactions, traceable on Blockchain, Ratio 45%/45%/10% Sender/Reciever/Mandate Telegram sender: @Arik_loader On Thu, Nov 2, 2023, 7:25 PM Catherine Issabel <[email protected]> wrote: > > $500 million dollars available only for good and trusted receiver or > mandate > Kindly contact the sender for more information:+1 (336) 345-9681 > On Friday, May 12, 2023 at 7:09:38=E2=80=AFPM UTC+1 Jeffrey Walton wrote: > >> On Fri, May 12, 2023 at 1:09=E2=80=AFPM Dwight Kulkarni <dwi...@realtime= -7.com> >> wrote: >> > >> > Update: It seems to be an issue with CFB mode. If I switch to ECB: 12 >> ms to process the workload. >> > >> > in encrypt aes >> > Encrypted 1at: 05/12/2023 17:06:54.838 >> > Encrypted 2at: 05/12/2023 17:06:54.838 >> > Encrypted 3at: 05/12/2023 17:06:54.838 >> > returning cipher >> > Encrypted 4at: 05/12/2023 17:06:54.850 >> >> Yeah, CFB mode is a hard mode in software. The software is effectively >> providing a linear feedback shift register, and it does a lot of >> [non-accelerated] bit twiddling. That's why it needs 4+ cycles to >> process a byte. >> >> I think you would have better results with GCM mode. First, GCM mode >> is an authenticated encryption mode, so you get authenticity >> assurances over the ciphertext. Second, you get hardware acceleration >> with both the bulk cipher encryption (AES), and the mac over the >> ciphertext (GMAC). >> >> Also see https://www.cryptopp.com/wiki/Authenticated_Encryption . >> >> 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/3bd37ee9-859d-41f2-841a-= 9b5cf32e14dcn%40googlegroups.com > <https://groups.google.com/d/msgid/cryptopp-users/3bd37ee9-859d-41f2-841a= -9b5cf32e14dcn%40googlegroups.com?utm_medium=3Demail&utm_source=3Dfooter> > . > --=20 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 e= mail to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/= cryptopp-users/CAOLESwm4LQH9Ru%3Dc6Q21-k3hz2QTf4Bt9ajBiE09hiHVx6Ob_A%40mail= .gmail.com. --000000000000a8f62c060957a972 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <div dir=3D"auto"><div dir=3D"auto">We Need wallet address of 7 months for = clean transactions, traceable on Blockchain,=C2=A0</div><div dir=3D"auto">R= atio 45%/45%/10%</div><div dir=3D"auto">Sender/Reciever/Mandate</div><div d= ir=3D"auto">Telegram sender: @Arik_loader</div><div dir=3D"auto"><br></div>= </div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">= On Thu, Nov 2, 2023, 7:25 PM Catherine Issabel <<a href=3D"mailto:issabe= [email protected]">[email protected]</a>> wrote:<br></div><b= lockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px = #ccc solid;padding-left:1ex"><br>$500 million dollars available only for go= od and trusted receiver or mandate <br>Kindly contact the sender for more i= nformation:+1 (336) 345-9681<br><div class=3D"gmail_quote"><div dir=3D"auto= " class=3D"gmail_attr">On Friday, May 12, 2023 at 7:09:38=E2=80=AFPM UTC+1 = Jeffrey Walton wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"m= argin:0 0 0 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">= On Fri, May 12, 2023 at 1:09=E2=80=AFPM Dwight Kulkarni <<a rel=3D"nofol= low noreferrer">[email protected]</a>> wrote: <br>> <br>> Update: It seems to be an issue with CFB mode. If I switch to ECB:= 12 ms to process the workload. <br>> <br>> in encrypt aes <br>> Encrypted 1at: 05/12/2023 17:06:54.838 <br>> Encrypted 2at: 05/12/2023 17:06:54.838 <br>> Encrypted 3at: 05/12/2023 17:06:54.838 <br>> returning cipher <br>> Encrypted 4at: 05/12/2023 17:06:54.850 <br> <br>Yeah, CFB mode is a hard mode in software. The software is effectively <br>providing a linear feedback shift register, and it does a lot of <br>[non-accelerated] bit twiddling. That's why it needs 4+ cycles to <br>process a byte. <br> <br>I think you would have better results with GCM mode. First, GCM mode <br>is an authenticated encryption mode, so you get authenticity <br>assurances over the ciphertext. Second, you get hardware acceleration <br>with both the bulk cipher encryption (AES), and the mac over the <br>ciphertext (GMAC). <br> <br>Also see <a href=3D"https://www.cryptopp.com/wiki/Authenticated_Encrypt= ion" rel=3D"nofollow noreferrer" target=3D"_blank">https://www.cryptopp.com= /wiki/Authenticated_Encryption</a> . <br> <br>Jeff <br></blockquote></div> <p></p> -- <br> You received this message because you are subscribed to the Google Groups &= quot;Crypto++ Users" group.<br> To unsubscribe from this group and stop receiving emails from it, send an e= mail to <a href=3D"mailto:[email protected]" targ= et=3D"_blank" rel=3D"noreferrer">[email protected]= m</a>.<br> To view this discussion on the web visit <a href=3D"https://groups.google.c= om/d/msgid/cryptopp-users/3bd37ee9-859d-41f2-841a-9b5cf32e14dcn%40googlegro= ups.com?utm_medium=3Demail&utm_source=3Dfooter" target=3D"_blank" rel= =3D"noreferrer">https://groups.google.com/d/msgid/cryptopp-users/3bd37ee9-8= 59d-41f2-841a-9b5cf32e14dcn%40googlegroups.com</a>.<br> </blockquote></div> <p></p> -- <br /> You received this message because you are subscribed to the Google Groups &= quot;Crypto++ Users" group.<br /> To unsubscribe from this group and stop receiving emails from it, send an e= mail to <a href=3D"mailto:[email protected]">cryp= [email protected]</a>.<br /> To view this discussion on the web visit <a href=3D"https://groups.google.c= om/d/msgid/cryptopp-users/CAOLESwm4LQH9Ru%3Dc6Q21-k3hz2QTf4Bt9ajBiE09hiHVx6= Ob_A%40mail.gmail.com?utm_medium=3Demail&utm_source=3Dfooter">https://group= s.google.com/d/msgid/cryptopp-users/CAOLESwm4LQH9Ru%3Dc6Q21-k3hz2QTf4Bt9ajB= iE09hiHVx6Ob_A%40mail.gmail.com</a>.<br /> --000000000000a8f62c060957a972--