The easy solution is just switch from the “bcrypt” npm module to bycryptjs or bcrypt-nodejs. It’s the exact same API, but pure JS so no native add-ons to deal with. npm install –save bcryptjs && npm uninstall –save bcrypt Then change your require calls to “bcryptjs”, but all your code otherwise can be unchanged. Long … Read more
Have a good look at the values you’re dealing with. The random salt generated will be, say: abcdefg… What is fed into crypt looks like this: crypt($password, ‘$2y$10$abcdefg…’) | | | | | +- the salt | +- the cost parameter +- the algorithm type The result looks like: $2y$10$abcdefg…123456789… | | | | | … Read more
The salt is incorporated into the hash (encoded in a base64-style format). For example, in traditional Unix passwords the salt was stored as the first two characters of the password. The remaining characters represented the hash value. The checker function knows this, and pulls the hash apart to get the salt back out.
There are similar questions: `require’: no such file to load — mkmf (LoadError) Failed to build gem native extension (mkmf (LoadError)) – Ubuntu 12.04 Usually, the solution is: sudo apt-get install ruby-dev Or, if that doesn’t work, depending on your ruby version, run something like: sudo apt-get install ruby1.9.1-dev Should fix your problem. Still not … Read more
This is bcrypt: Generate a random salt. A “cost” factor has been pre-configured. Collect a password. Derive an encryption key from the password using the salt and cost factor. Use it to encrypt a well-known string. Store the cost, salt, and cipher text. Because these three elements have a known length, it’s easy to concatenate … Read more
The modular crypt format for bcrypt consists of $2$, $2a$ or $2y$ identifying the hashing algorithm and format a two digit value denoting the cost parameter, followed by $ a 53 characters long base-64-encoded value (they use the alphabet ., /, 0–9, A–Z, a–z that is different to the standard Base 64 Encoding alphabet) consisting … Read more
bcrypt is a hashing algorithm which is scalable with hardware (via a configurable number of rounds). Its slowness and multiple rounds ensures that an attacker must deploy massive funds and hardware to be able to crack your passwords. Add to that per-password salts (bcrypt REQUIRES salts) and you can be sure that an attack is … Read more