online crypto tools

blowfish sha-256 hmac

Here are several online crypto tools. Please feel free to use them as online resources to encrypt and decrypt data, generate hashes, and generate HMAC’s.

Blowfish
  encrypt and decrypt using Blowfish

SHA-256
  generate SHA-2 hashes

SHA256-HMAC
  generate Hash-based Message Authentication Codes

MIME Base64
  encode and decode Base64

Each of these cryptographic algorithms was chosen deliberately. Each is the best of its kind. Blowfish is a fast and secure. It was designed as a DES replacement by Bruce Schneier. SHA-2 is a newer class of hash functions that includes SHA-256. Why didn’t I use SHA-512? I’m waiting for SHA-3. While other algorithms are available, these are the ones that are both industrial strength and able to resist aggressive cryptanalysis.