%PDF-1.4
%
1 0 obj
<>stream
application/pdfIEEEIEEE Transactions on Emerging Topics in Computing;2021;9;4;10.1109/TETC.2019.2953041Audio Hotspot Attack: An Attack on Voice Assistance Systems Using Directional Sound Beams and its FeasibilityVoice assistance systemsvoice commands attackultrasonicsecurityacousticsInternet of ThingsRyo IijimaShota MinamiYunao ZhouTatsuya TakehisaTakeshi TakahashiYasuhiro OikawaTatsuya Mori
IEEE Transactions on Emerging Topics in Computing20041 Oct.-Dec. 2021410.1109/TETC.2019.295304192018
VoR
endstream
endobj
2 0 obj
<>/Subtype/Link/Type/Annot/Border[0 0 0]/Rect[260.05 319.975 278.079 327.401]>>
endobj
3 0 obj
<>stream
8;YPlX`E2N&Csc"$I#kbkKH7*cp3BYV?*(k/P_G#+J?@n%8'HLg,Cu:,7.nVREep<
e('N*[OfO$m+c,oZ90YnlJ(,j5?@(J$$!9#:AMFN9C2#fWbcHH%I+W-qA!"LWm&)l
-032SnHapsukr5.BSWiWE`0L_LpH!q!.a4GAMe/N<1UYUc
IbB*?S$0ERR!_I,U(5h\GgIU]1=!DLXRXr2\RCM=37(si1eBehA)275$\O6+:?*21
6[gb&"Bu)'\_Xd^8BW+&BeW[L7dqOMd%Mi,Qu-W^+"`I;Xrq(Jo8LsWA#=]r<^.L_
`VdT0bQbj_`tljj7Wo]'7h*K?G%so2_AJuL7CF=G#kD(/JZjB*E*TXD%0th\+
BO&LRk%a`jmAd4ebsd'fJQa>&7cNB`mC]J%5-h!_T8[,i-[@nd;q'2GGBS\cYJkt`
:@Y<4GLD8#31uE/**[C-FM?6eI(o?m3n=67ldYJJ_4Q#IT@nT%O'LSGQ.B%5"ut/J
^0b[GB,$IoG36hX/W&RBb=7UVo^G>;;DC0,`
r).C$gjdi$c7_'5Ns^oh]Dk9/o1&Q(ZMiE++3]rHHNg"cal_ULo).M6G&pqoDJk@c
)gH)a5]R#6bRrkS80D_L\NN8nuAldXg2I*PnTan'A<5IXpG
]GSWV)^51p\UI8o&C5SkS1ALWM;=pOs15sJa,@4H^&M'DlDeTCs3W
endstream
endobj
4 0 obj
[/Indexed/DeviceRGB 255 5 0 R]
endobj
5 0 obj
<>stream
8;X]O>EqN@%''O_@%e@?J;%+8(9e>X=MR6S?i^YgA3=].HDXF.R$lIL@"pJ+EP(%0
b]6ajmNZn*!='OQZeQ^Y*,=]?C.B+\Ulg9dhD*"iC[;*=3`oP1[!S^)?1)IZ4dup`
E1r!/,*0[*9.aFIR2&b-C#soRZ7Dl%MLY\.?d>Mn
6%Q2oYfNRF$$+ON<+]RUJmC0InDZ4OTs0S!saG>GGKUlQ*Q?45:CI&4J'_2j$XKrcYp0n+Xl_nU*O(
l[$6Nn+Z_Nq0]s7hs]`XX1nZ8&94a\~>
endstream
endobj
6 0 obj
<>/ExtGState<>/ProcSet[/PDF/Text/ImageC/ImageB/ImageI]/Font<>/XObject<>/Properties<>>>/CropBox[0 0 576 782.589]/Parent 22 0 R/Rotate 0/MediaBox[0 0 576 782.589]>>
endobj
7 0 obj
<>stream
x}vɑZp=,/͌kܲ
B"A&Hg9|b*HUʊ__7?w/҅Ӆ]*7ś!\7o_1|12ҹz-oza9.W~#d˴mVne\\.7u՝>p{Y>,? uxzHBX_Ϳ
8vKyś>,yTvAGjy\燡|Ø9/fi럄ݲ.nn7eG7ʏv?4qث;>[vѻe[Fe^|~uDAڿǿz9ʛs?) &xs,^݁ߺOQjQe&onW62,_'o3 Y9q5,]霉ǭz9ŋ\m^b7ɋ>ѻcƼ|