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webcrypto/packages/pkcs11/src/template_builder.ts

102 lines
3.2 KiB
TypeScript

import * as graphene from "graphene-pk11";
import { BufferSourceConverter } from "pvtsutils";
import * as types from "./types";
export class TemplateBuilder implements types.ITemplateBuilder {
public build(params: types.ITemplateBuildParameters): types.ITemplate {
const { attributes, action, type } = params;
const template: types.ITemplate = {
token: !!attributes.token,
};
if (action === "copy") {
if (type === "private") {
if (attributes.token) {
// TODO SafeNET 5110 token requires CKA_SENSITIVE:true and CKA_EXTRACTABLE:false
// Those values must be set in C_GenerateKeyPair, or C_CopyObject, or C_CreateObject
// Object.assign<types.ITemplate, types.ITemplate>(template, {
// sensitive: true,
// });
}
}
} else {
if (attributes.label) {
template.label = attributes.label
}
if (attributes.id) {
template.id = Buffer.from(BufferSourceConverter.toArrayBuffer(attributes.id));
}
const sign = attributes.usages?.includes("sign");
const verify = attributes.usages?.includes("verify");
const wrap = attributes.usages?.includes("wrapKey");
const unwrap = attributes.usages?.includes("unwrapKey");
const encrypt = unwrap || attributes.usages?.includes("encrypt");
const decrypt = wrap || attributes.usages?.includes("decrypt");
const derive = attributes.usages?.includes("deriveBits") || attributes.usages?.includes("deriveKey");
switch (type) {
case "private":
Object.assign<types.ITemplate, types.ITemplate>(template, {
class: graphene.ObjectClass.PRIVATE_KEY,
sensitive: !!attributes.sensitive,
private: true,
extractable: !!attributes.extractable,
derive,
sign,
decrypt,
unwrap,
});
break;
case "public":
Object.assign<types.ITemplate, types.ITemplate>(template, {
token: !!attributes.token,
class: graphene.ObjectClass.PUBLIC_KEY,
private: false,
derive,
verify,
encrypt,
wrap,
});
break;
case "secret":
Object.assign<types.ITemplate, types.ITemplate>(template, {
class: graphene.ObjectClass.SECRET_KEY,
sensitive: !!attributes.sensitive,
extractable: !!attributes.extractable,
derive,
sign,
verify,
decrypt,
encrypt,
unwrap,
wrap,
});
break;
case "request":
if (template.id) {
template.objectId = template.id;
delete template.id;
}
Object.assign<types.ITemplate, types.ITemplate>(template, {
class: graphene.ObjectClass.DATA,
application: "webcrypto-p11",
private: false,
});
break;
case "x509":
Object.assign<types.ITemplate, types.ITemplate>(template, {
class: graphene.ObjectClass.CERTIFICATE,
certType: graphene.CertificateType.X_509,
private: false,
});
break;
}
}
return template;
}
}