Blowfish Encryptor

This is a free online Blowfish Encryptor/Decryptor. Blowfish Encryption is one of safest way to transmit your passwords, secret answers and credit card numbers, etc. It uses 1 to 448 bit key length and has a block size of 64 bit. The encryption is considered safe in many ways mainly due to its slow computation due to the key encryptions and thus avoids any automatically generating software attacks. With our free Blowfish tool, you can encrypt plain text into cipher and also dectypt cipher back to readable text.

Plain / Encrypted Text
Password
Result Encrypted Text
Privacy and Disclaimer

The encryption process uses Javascript, so your input doesn't even reach our server. We do not store or monitor your input in any way.

We are not responsible for any loss of data or personal information. Encrypted text is used at the user's own risk and no liability will be assumed.



What is Blowfish Encryption?

Designed first by Bruce Shneier, blowfish encryption is a block cipher which uses key depended S-boxes. S-box is a substitution box which replaces the original data into an encrypted data as per a key dependent schedule. Encryption is very secure and there has been no publicly known cryptanalysis of it to date, making it one of the strongest and most secure techniques of encryption. Preprocessing of plain text of a size as large as some four kilobytes is required for every new key to be used in encryption and it explains the amount of security attained as a result. It has been popular mainly due to its free use as it was not patented by its designer. It occupies a very small size of just four kilobytes of RAM and hence can be used on the oldest desktops and other devices.

Blowfish encryption has since been used in applications very successfully. It is safe, reliable and hacking resistant. Its utility can be gauged from the fact that its successors were also designed from the same technique as used in blowfish but just changed the block sizes.