crypto-js is no longer maintained

[Brian Cameron]

crypto-js is discontinued. Probably a good idea to switch to using something else as a dependency for SHA.

I notice crypto-js is only used here:

react-native-pdf/index.js

Line 25 in 5df5a1b

 const SHA1 = require('crypto-js/sha1'); 

SHA-1 is considered unsafe and has collision concerns. Shouldn't SHA-256 be used instead these days?

[Brian Cameron]

https://github.com/brix/crypto-js