| -rw-r--r-- | backend/node/src/clipperz.js | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/backend/node/src/clipperz.js b/backend/node/src/clipperz.js index 37b9cae..72b6c9f 100644 --- a/backend/node/src/clipperz.js +++ b/backend/node/src/clipperz.js @@ -38,24 +38,26 @@ function clipperz_store(PG) { cb(e,e?null:r.rows[0].c); } ) }; rv.prototype.clear = function(cb) { PQ.Q( "TRUNCATE clipperz.thesession", cb ) }; rv.prototype.__proto__ = express_store.prototype; return rv; } var srp_g = BIGNUM(2); var srp_n = BIGNUM("115b8b692e0e045692cf280b436735c77a5a9e8a9e7ed56c965f87db5b2a2ece3",16); +var srp_k = BIGNUM("64398bff522814e306a97cb9bfc4364b7eed16a8c17c5208a40a2bad2933c8e",16); +var srp_hn = "597626870978286801440197562148588907434001483655788865609375806439877501869636875571920406529"; var n123 = '112233445566778899aabbccddeeff00112233445566778899aabbccddeeff00'; var CLIPPERZ = module.exports = function(CONFIG) { var LOGGER = CONFIG.logger||{trace:function(){}}; var PG = { url: CONFIG.psql, PG: require('pg').native, Q: function(q,a,cb) { if('function'===typeof a) cb=a,a=[]; @@ -166,37 +168,42 @@ var CLIPPERZ = module.exports = function(CONFIG) { if(!r.rowCount) return cb(new Error('no OTP found')); r=r.rows[0]; if(!r.yes) return cb(new Error('OTP is in a sorry state')); cb(null,{ref:r.otp_ref}); }); }] },function(e,r) { if(e) return cb(e); req.session.C = ppp.C; req.session.A = ppp.A; req.session.s = r.u.u_srp_s; req.session.v = r.u.u_srp_v; req.session.u = r.u.u_id; req.session.b = clipperz_random(); - req.session.B = BIGNUM(req.session.v,16).add(srp_g.powm(BIGNUM(req.session.b,16),srp_n)).toString(16); + req.session.B = srp_k.mul(BIGNUM(req.session.v,16)).add(srp_g.powm(BIGNUM(req.session.b,16),srp_n)).toString(16); var rv = {s:req.session.s,B:req.session.B} if(r.otp && r.otp.otp_ref) rv.oneTimePassword=r.otp.otp_ref; res.res(rv); }); case 'credentialCheck': - var u = clipperz_hash(BIGNUM(req.session.B,16).toString(10)); + var u = clipperz_hash(BIGNUM(req.session.A,16).toString(10)+BIGNUM(req.session.B,16).toString(10)); var A = BIGNUM(req.session.A,16); - var S = A.mul(BIGNUM(req.session.v,16).powm(BIGNUM(u,16),srp_n)).powm( - BIGNUM(req.session.b,16), srp_n); + var S = A.mul(BIGNUM(req.session.v,16).powm(BIGNUM(u,16),srp_n)).powm(BIGNUM(req.session.b,16),srp_n); var K = clipperz_hash(S.toString(10)); - var M1 = clipperz_hash(A.toString(10)+BIGNUM(req.session.B,16).toString(10)+K.toString(16)); + var M1 = clipperz_hash( + srp_hn + +clipperz_hash(req.session.C) + +BIGNUM(req.session.s,16).toString(10) + +A.toString(10) + +BIGNUM(req.session.B,16).toString(10) + +K ); if(M1!=ppp.M1) return res.res({error:'?'}); req.session.K = K; var M2 = clipperz_hash(A.toString(10)+M1+K.toString(16)); return res.res({M2:M2,connectionId:'',loginInfo:{latest:{},current:{}},offlineCopyNeeded:false,lock:'----'}); case 'oneTimePassword': return PG.Q( "UPDATE clipperz.theotp AS otp" +" SET" +" otps_id = CASE WHEN s.otps_code!='ACTIVE' THEN s.otps_id ELSE (" +" SELECT ss.otps_id FROM clipperz.otpstatus AS ss WHERE ss.otps_code=CASE" +" WHEN otp.otp_key_checksum=$2 THEN 'REQUESTED'" +" ELSE 'DISABLED' END" |