Looks like they're using CryptoJS[0] based on some symbol names in the source[1]. [0]: https://github.com/bianjiang/crypto-js-npm/blob/1762940b9eef076dd20cfab1

Looks like they're using CryptoJS[0] based on some symbol names in the source[1]. [0]: https://github.com/bianjiang/crypto-js-npm/blob/1762940b9eef076dd20cfab149c9f97975d4b7d4/original/crypto-js-read-only/build/components/cipher-core.js#L850 https://github.com/bianjiang/crypto-js-npm/blob/1762940b9eef... [1]: https://maps.amtrak.com/rttl/js/AS.js https://maps.amtrak.com/rttl/js/AS.js