2 lines
7.3 KiB
JavaScript
2 lines
7.3 KiB
JavaScript
(function(){"use strict";var X509=window.X509={};var ASN1=window.ASN1;var Enc=window.Encoding;var OBJ_ID_EC="06 08 2A8648CE3D030107".replace(/\s+/g,"").toLowerCase();var OBJ_ID_EC_384="06 05 2B81040022".replace(/\s+/g,"").toLowerCase();X509.parsePkcs1=function parseRsaPkcs1(asn1,jwk){if(!jwk){jwk={}}if(asn1.byteLength){asn1=ASN1.parse({der:asn1,verbose:true,json:false})}if(!asn1.children.every(function(el){return 2===el.type})){throw new Error("not an RSA PKCS#1 public or private key (not all ints)")}if(2===asn1.children.length){jwk.n=Enc.bufToUrlBase64(asn1.children[0].value);jwk.e=Enc.bufToUrlBase64(asn1.children[1].value);jwk.kty="RSA"}else if(asn1.children.length>=9){jwk.n=Enc.bufToUrlBase64(asn1.children[1].value);jwk.e=Enc.bufToUrlBase64(asn1.children[2].value);jwk.d=Enc.bufToUrlBase64(asn1.children[3].value);jwk.p=Enc.bufToUrlBase64(asn1.children[4].value);jwk.q=Enc.bufToUrlBase64(asn1.children[5].value);jwk.dp=Enc.bufToUrlBase64(asn1.children[6].value);jwk.dq=Enc.bufToUrlBase64(asn1.children[7].value);jwk.qi=Enc.bufToUrlBase64(asn1.children[8].value);jwk.kty="RSA"}else{throw new Error("not an RSA PKCS#1 public or private key (wrong number of ints)")}return jwk};X509.parseSec1=function parseEcOnlyPrivkey(u8,jwk){var index=7;var len=32;var olen=OBJ_ID_EC.length/2;if("P-384"===jwk.crv){olen=OBJ_ID_EC_384.length/2;index=8;len=48}if(len!==u8[index-1]){throw new Error("Unexpected bitlength "+len)}var d=u8.slice(index,index+len);var ci=index+len+2+olen+2+3;var c=u8[ci];var x,y;if(4===c){y=u8.slice(ci+1+len,ci+1+len+len)}else if(2!==c){throw new Error("not a supported EC private key")}x=u8.slice(ci+1,ci+1+len);return{kty:jwk.kty||"EC",crv:jwk.crv||"P-256",d:Enc.bufToUrlBase64(d),x:Enc.bufToUrlBase64(x),y:Enc.bufToUrlBase64(y)}};X509.parsePkcs8=function(u8,jwk){try{return X509.parseRsaPkcs8(u8,jwk)}catch(e){return X509.parseEcPkcs8(u8,jwk)}};X509.parseEcPkcs8=function parseEcPkcs8(u8,jwk){var index=24+OBJ_ID_EC.length/2;var len=32;if("P-384"===jwk.crv){index=24+OBJ_ID_EC_384.length/2+2;len=48}if(4!==u8[index]){throw new Error("privkey not found")}var d=u8.slice(index+2,index+2+len);var ci=index+2+len+5;var xi=ci+1;var x=u8.slice(xi,xi+len);var yi=xi+len;var y;if(4===u8[ci]){y=u8.slice(yi,yi+len)}else if(2!==u8[ci]){throw new Error("invalid compression bit (expected 0x04 or 0x02)")}return{kty:jwk.kty||"EC",crv:jwk.crv||"P-256",d:Enc.bufToUrlBase64(d),x:Enc.bufToUrlBase64(x),y:Enc.bufToUrlBase64(y)}};X509.parseRsaPkcs8=function parseRsaPkcs8(asn1,jwk){if(!jwk){jwk={}}if(asn1.byteLength){asn1=ASN1.parse({der:asn1,verbose:true,json:false})}if(2===asn1.children.length&&3===asn1.children[1].type){asn1=asn1.children[1].children[0];jwk.n=Enc.bufToUrlBase64(asn1.children[0].value);jwk.e=Enc.bufToUrlBase64(asn1.children[1].value);jwk.kty="RSA"}else if(3===asn1.children.length&&4===asn1.children[2].type&&48===asn1.children[2].children[0].type&&2===asn1.children[2].children[0].children[0].type){asn1=asn1.children[2].children[0];jwk.n=Enc.bufToUrlBase64(asn1.children[1].value);jwk.e=Enc.bufToUrlBase64(asn1.children[2].value);jwk.d=Enc.bufToUrlBase64(asn1.children[3].value);jwk.p=Enc.bufToUrlBase64(asn1.children[4].value);jwk.q=Enc.bufToUrlBase64(asn1.children[5].value);jwk.dp=Enc.bufToUrlBase64(asn1.children[6].value);jwk.dq=Enc.bufToUrlBase64(asn1.children[7].value);jwk.qi=Enc.bufToUrlBase64(asn1.children[8].value);jwk.kty="RSA"}else{throw new Error("not an RSA PKCS#8 public or private key (wrong format)")}return jwk};X509.parseSpki=function(buf,jwk){try{return X509.parseRsaPkcs8(buf,jwk)}catch(e){return X509.parseEcSpki(buf,jwk)}};X509.parseEcSpki=function(u8,jwk){var ci=16+OBJ_ID_EC.length/2;var len=32;if("P-384"===jwk.crv){ci=16+OBJ_ID_EC_384.length/2;len=48}var c=u8[ci];var xi=ci+1;var x=u8.slice(xi,xi+len);var yi=xi+len;var y;if(4===c){y=u8.slice(yi,yi+len)}else if(2!==c){throw new Error("not a supported EC private key")}return{kty:jwk.kty||"EC",crv:jwk.crv||"P-256",x:Enc.bufToUrlBase64(x),y:Enc.bufToUrlBase64(y)}};X509.parsePkix=X509.parseSpki;X509._parseRsa=function(asn1){if(asn1.byteLength){asn1=ASN1.parse({der:asn1,verbose:true,json:false})}var meta={kty:"RSA",format:"pkcs1",public:true};if(asn1.children.every(function(el){return 2===el.type})){if(2===asn1.children.length){}else if(asn1.children.length>=9){meta.public=false}else{throw new Error("not an RSA PKCS#1 public or private key (wrong number of ints)")}}else{meta.format="pkcs8"}var jwk={kty:"RSA",n:null,e:null};if("pkcs1"===meta.format){return X509.parsePkcs1(asn1,jwk)}else{return X509.parsePkcs8(asn1,jwk)}};var OBJ_ID_EC="06 08 2A8648CE3D030107".replace(/\s+/g,"").toLowerCase();var OBJ_ID_EC_384="06 05 2B81040022".replace(/\s+/g,"").toLowerCase();var OBJ_ID_EC_PUB="06 07 2A8648CE3D0201".replace(/\s+/g,"").toLowerCase();var Asn1=ASN1.Any;var UInt=ASN1.UInt;var BitStr=ASN1.BitStr;X509.packPkcs1=function(jwk){var n=UInt(Enc.base64ToHex(jwk.n));var e=UInt(Enc.base64ToHex(jwk.e));if(!jwk.d){return Enc.hexToBuf(Asn1("30",n,e))}return Enc.hexToBuf(Asn1("30",UInt("00"),n,e,UInt(Enc.base64ToHex(jwk.d)),UInt(Enc.base64ToHex(jwk.p)),UInt(Enc.base64ToHex(jwk.q)),UInt(Enc.base64ToHex(jwk.dp)),UInt(Enc.base64ToHex(jwk.dq)),UInt(Enc.base64ToHex(jwk.qi))))};X509.packSec1=function(jwk){var d=Enc.base64ToHex(jwk.d);var x=Enc.base64ToHex(jwk.x);var y=Enc.base64ToHex(jwk.y);var objId="P-256"===jwk.crv?OBJ_ID_EC:OBJ_ID_EC_384;return Enc.hexToBuf(Asn1("30",UInt("01"),Asn1("04",d),Asn1("A0",objId),Asn1("A1",BitStr("04"+x+y))))};X509.packPkcs8=function(jwk){if(/RSA/.test(jwk.kty)){return X509.packPkcs8Rsa(jwk)}return X509.packPkcs8Ec(jwk)};X509.packPkcs8Ec=function(jwk){var d=Enc.base64ToHex(jwk.d);var x=Enc.base64ToHex(jwk.x);var y=Enc.base64ToHex(jwk.y);var objId="P-256"===jwk.crv?OBJ_ID_EC:OBJ_ID_EC_384;return Enc.hexToBuf(Asn1("30",UInt("00"),Asn1("30",OBJ_ID_EC_PUB,objId),Asn1("04",Asn1("30",UInt("01"),Asn1("04",d),Asn1("A1",BitStr("04"+x+y))))))};X509.packPkcs8Rsa=function(jwk){if(!jwk.d){return Enc.hexToBuf(Asn1("30",Asn1("30",Asn1("06","2a864886f70d010101"),Asn1("05")),BitStr(Asn1("30",UInt(Enc.base64ToHex(jwk.n)),UInt(Enc.base64ToHex(jwk.e))))))}return Enc.hexToBuf(Asn1("30",UInt("00"),Asn1("30",Asn1("06","2a864886f70d010101"),Asn1("05")),Asn1("04",Asn1("30",UInt("00"),UInt(Enc.base64ToHex(jwk.n)),UInt(Enc.base64ToHex(jwk.e)),UInt(Enc.base64ToHex(jwk.d)),UInt(Enc.base64ToHex(jwk.p)),UInt(Enc.base64ToHex(jwk.q)),UInt(Enc.base64ToHex(jwk.dp)),UInt(Enc.base64ToHex(jwk.dq)),UInt(Enc.base64ToHex(jwk.qi))))))};X509.packSpkiEc=function(jwk){var x=Enc.base64ToHex(jwk.x);var y=Enc.base64ToHex(jwk.y);var objId="P-256"===jwk.crv?OBJ_ID_EC:OBJ_ID_EC_384;return Enc.hexToBuf(Asn1("30",Asn1("30",OBJ_ID_EC_PUB,objId),BitStr("04"+x+y)))};X509.packSpki=function(jwk){if(/RSA/i.test(jwk.kty)){return X509.packPkcs8Rsa(jwk)}return X509.packSpkiEc(jwk)};X509.packPkix=X509.packSpki;X509.packCsrRsaPublicKey=function(jwk){var n=UInt(Enc.base64ToHex(jwk.n));var e=UInt(Enc.base64ToHex(jwk.e));var asn1pub=Asn1("30",n,e);return Asn1("30",Asn1("30",Asn1("06","2a864886f70d010101"),Asn1("05")),BitStr(asn1pub))};X509.packCsrEcPublicKey=function(jwk){var ecOid=X509._oids[jwk.crv];if(!ecOid){throw new Error("Unsupported namedCurve '"+jwk.crv+"'. Supported types are "+Object.keys(X509._oids))}var cmp="04";var hxy="";if(!jwk.y){cmp="02"}hxy+=Enc.base64ToHex(jwk.x);if(jwk.y){hxy+=Enc.base64ToHex(jwk.y)}return Asn1("30",Asn1("30",Asn1("06","2a8648ce3d0201"),Asn1("06",ecOid)),BitStr(cmp+hxy))};X509._oids={"P-256":"2a8648ce3d030107","P-384":"2b81040022"}})();
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