Encrypt given data using bf-ecb cipher algo. Blowfish in ECB (Electronic Codebook) mode. Each block of plaintext is encrypted independently, making it a simple and fast mode, but with security drawbacks. ECB is the simplest mode of operation, first proposed for use in symmetric block ciphers like Blowfish in the 1990s. Not recommended due to patterns in the ciphertext being visible if the same plaintext is encrypted multiple times. This leads to security vulnerabilities. Our encryption process prepends the IV string used during the encryption process in the encrypted data so that it can be used during decryption.