25 lines
775 B
JavaScript
25 lines
775 B
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.bitLength = void 0;
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const errors_js_1 = require("../util/errors.js");
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const random_js_1 = require("../runtime/random.js");
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function bitLength(alg) {
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switch (alg) {
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case 'A128GCM':
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case 'A128GCMKW':
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case 'A192GCM':
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case 'A192GCMKW':
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case 'A256GCM':
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case 'A256GCMKW':
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return 96;
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case 'A128CBC-HS256':
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case 'A192CBC-HS384':
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case 'A256CBC-HS512':
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return 128;
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default:
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throw new errors_js_1.JOSENotSupported(`Unsupported JWE Algorithm: ${alg}`);
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}
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}
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exports.bitLength = bitLength;
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exports.default = (alg) => (0, random_js_1.default)(new Uint8Array(bitLength(alg) >> 3));
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