The cryptographic primitives (ECDSA and HMAC) implementations in this package have been reviewed by the BitPay engineering team. More audits and reviews are welcomed.
The bitcore.crypto.Random namespace contains a single function, named getRandomBuffer(size) that returns a Buffer instance with random bytes. It may not work depending on the engine that bitcore is running on (doesn't work with IE versions lesser than 11).
The bitcore.crypto.BN class contains a wrapper around bn.js, the bignum library used internally in bitcore.
The bitcore.crypto.Point class contains a wrapper around the class Point of elliptic.js, the elliptic curve library used internally in bitcore.
The bitcore.crypto.Hash namespace contains a set of hashes and utilities. These are either the native crypto hash functions from node.js or their respective browser shims as provided by the browserify library.
bitcore.crypto.ECDSA contains a pure JavaScript implementation of the elliptic curve DSA signature scheme based on elliptic.js.