mirror of
https://github.com/danbulant/jose
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15 lines
626 B
JavaScript
15 lines
626 B
JavaScript
export default (alg, key) => {
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if (alg.startsWith('HS')) {
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const bitlen = parseInt(alg.substr(-3), 10);
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const { length } = key.algorithm;
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if (typeof length !== 'number' || length < bitlen) {
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throw new TypeError(`${alg} requires symmetric keys to be ${bitlen} bits or larger`);
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}
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}
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if (alg.startsWith('RS') || alg.startsWith('PS')) {
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const { modulusLength } = key.algorithm;
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if (typeof modulusLength !== 'number' || modulusLength < 2048) {
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throw new TypeError(`${alg} requires key modulusLength to be 2048 bits or larger`);
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}
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}
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};
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