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24 lines
456 B
JavaScript
24 lines
456 B
JavaScript
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'use strict';
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function getParamSize(keySize) {
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var result = ((keySize / 8) | 0) + (keySize % 8 === 0 ? 0 : 1);
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return result;
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}
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var paramBytesForAlg = {
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ES256: getParamSize(256),
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ES384: getParamSize(384),
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ES512: getParamSize(521)
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};
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function getParamBytesForAlg(alg) {
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var paramBytes = paramBytesForAlg[alg];
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if (paramBytes) {
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return paramBytes;
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}
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throw new Error('Unknown algorithm "' + alg + '"');
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}
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module.exports = getParamBytesForAlg;
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