recoder-code
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22 lines (21 loc) • 517 B
JavaScript
import { AwsCrc32 } from "@aws-crypto/crc32";
import { numToUint8 } from "@aws-crypto/util";
import * as zlib from "zlib";
class NodeCrc32 {
checksum = 0;
update(data) {
this.checksum = zlib.crc32(data, this.checksum);
}
async digest() {
return numToUint8(this.checksum);
}
reset() {
this.checksum = 0;
}
}
export const getCrc32ChecksumAlgorithmFunction = () => {
if (typeof zlib.crc32 === "undefined") {
return AwsCrc32;
}
return NodeCrc32;
};