Online Bcrypt hash generator

What is a Bcrypt hash generator

Bcrypt hash generator is an online tool to generate hashed password from a string of characters, so hackers can't steal it from the database. It is a secure password hashing function created years ago. It not only generates strong hash value but also makes use of salt to prevent rainbow attacks. The thing that makes this hashing function based on blowfish different from others is the amount of time.

What is password hashing and salting?

Hashing is a process of converting passwords to ciphertext. A hashed password cannot be decrypted, but a hacker can try to reverse-engineer it. Salt is a random string that makes the one-way hash unpredictable. Salting involves the addition of some random text before and after a password prior to hashing to make the password unpredictable for hackers.

What is Bcrypt

Bcrypt is a function used to hash and salt passwords for safe storage. Moreover, it is adaptive to the computational power of the hardware. Niels Provos and David Mazières in 1999 introduced the concept of bcrypt based on the Blowfish cipher to secure the password storage of the Unix authentication system. In the term bcrypt, b symbolizes Blowfish, and the crypt is the name of hashing function in the UNIX password system. Blowfish is a symmetric-key block cipher that requires only 4 KB space of RAM.

What is Bcrypt used for

Storing plain text password in documentation is not safe. To protect your passwords from hackers, you need to hash them, but only hashing is not enough for password security. So, here arises the concept of salt in a password generator. Bcrypt, by default, uses hashing and salting to make your password string safer and more secure. The main advantage of this bcrypt password hash resource is that developers make it slower, so it can reduce the speed of cyberattacks performed by hackers. Developers don't calculate the iteration count in this utility manually as its value depends on the hardware tolerance.

How to use our Bcrypt hash generator

To generate bcrypt password hash, select the online bcrypt generator from the free tools list. Type the password you want to encrypt as plain text in the text field, and press submit. It will generate a bcrypt hashed password in a few seconds. You can enter passwords both in uppercase, lowercase and symbols. Bcrypt hash online internally generates random salt rounds while encoding passwords and store that salt along with the encrypted password. Every time you convert a text to bcrypt, it will generate a string of 60 characters. 

Bcrypt vs sha256

The bcrypt algorithm, a function created by Niels Provos, is the industry's standard encryption function that enhances the original passphrase security. This hashing function created by Niels works only on small data. That's why it's best for original password cryptographic functions. SHA stands for secure hashing algorithm. SHA-256 is a sha-2 with 256-bit output and sha-2 is the predecessor to sha-3. It was introduced for hashing digital signatures and certificates. It was not designed for hashing passwords and is vulnerable to rainbow table and brute-force attacks. It is suitable for large amounts of data. Moreover, sha-256 works quite faster as compared to bcrypt and is not appropriate to support password hash from a string. The greater the speed of hashing passwords, the larger the risk of hacking. If you want to hash passwords to resist brute-force search, use a slow hashing function based on blow-fish to generate a strong hash securely. If you want to hash longer files, it's advisable to use fast hashing functions.

Bcrypt vs argon2

Argon2 is a modern cryptographic function used to encrypt passwords. In 2015, it won the Password Hashing Competition (PHC). Bcrypt focuses on computational cost, whereas Argon2's main purpose is to fill memory at a fast rate and use multiple computing units effectively. Besides password protection, Argon2 also deals with GPU cracking and side-channel threats. In addition to that, there are three versions of Argon2, i.e. Argon2d, Argon2i and Argon2id. The main focus of Argon2d is fast computation, and it is the right fit for applications that do not have any side-channel timing attacks threat. Argon2i is slower and suitable for password hashing. Argon2id is the combination of both Argon2i and Argon2d and provides both brute-force cost savings and side-channel attack, such as meltdown and spectre, protection due to time-memory tradeoffs.

Bcrypt vs MD5

There are a few key differences between bcrypt and MD5. First, Bcrypt is designed specifically for hashing passwords, whereas MD5 is a general-purpose hashing algorithm. Secondly, Bcrypt is more secure than MD5, since it uses a larger salt and takes more time to compute the hash. Lastly, MD5 is faster than bcrypt, so it may be more suitable for situations where speed is more important than security.

Is our online tool safe?

Freenerdtools online bcrypt generator tool does not store your inputs and their bcrypts. So, it is 100% safe to use our online tool to produce secure passwords. It's quite effective if you are doing cross-browser testing. For password verification, match the bcrypt hash with the original password.

Bcrypt hash alternatives

Scrypt and Argon2 are the best alternatives to bcrypt. Password hashing function based on Scrypt uses less energy and computational power, whereas Argon2 has better password-cracking resistance. Elon Musk used the Scrypt algorithm in his cryptocurrency projects, i.e. Dogecoin and Litecoin.

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