You’re HASHING, not ENCRYPTING! What’s the difference? The difference is that hashing is a one way function, where encryption is a two-way function. So, how do you ascertain that the password is right? Therefore, when a user submits a password, you don’t decrypt your stored hash, instead you perform the same bcrypt operation on the … Read more
With “salt round” they actually mean the cost factor. The cost factor controls how much time is needed to calculate a single BCrypt hash. The higher the cost factor, the more hashing rounds are done. Increasing the cost factor by 1 doubles the necessary time. The more time is necessary, the more difficult is brute-forcing. … Read more
Using the golang.org/x/crypto/bcrypt package, I believe the equivalent would be: hashedPassword, err := bcrypt.GenerateFromPassword(password, bcrypt.DefaultCost) Working example: package main import ( “golang.org/x/crypto/bcrypt” “fmt” ) func main() { password := []byte(“MyDarkSecret”) // Hashing the password with the default cost of 10 hashedPassword, err := bcrypt.GenerateFromPassword(password, bcrypt.DefaultCost) if err != nil { panic(err) } fmt.Println(string(hashedPassword)) // Comparing … Read more
Remember that the value is stored in the password: $2a$(2 chars work)$(22 chars salt)(31 chars hash). It is not a fixed value. If you find the load is too high, just make it so the next time they log in, you crypt to something faster to compute. Similarly, as time goes on and you get … Read more
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
It sounds like you are looking for BCrypt.net: BCrypt.net is an implementation of OpenBSD’s Blowfish-based password hashing code, described in “A Future-Adaptable Password Scheme” by Niels Provos and David Mazières. It is a direct port of jBCrypt by Damien Miller, and is thus released under the same BSD-style license. The code is fully managed and … Read more
I’ve found that bcrypt compiled on OSX will not quite work on Linux. In other words, if you check in the bcrypt compiled on your local OSX workstation, and try to run the node app on your linux servers, you will see the error above. Solution: npm install bcrypt on Linux, check that in, solved. … Read more
The salt is incorporated into the hash (as plaintext). The compare function simply pulls the salt out of the hash and then uses it to hash the password and perform the comparison.
First, some terms that are important: Hashing – The act of taking a string and producing a sequence of characters that cannot be reverted to the original string. Symmetric Encryption – (Usually just referred to as ‘encryption’) – The act of taking a string and producing a sequence of characters that can be decrypted to … 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.