Generate a Rails-compatible key.

Generate a key with options.

Generate a Devise-compatible general-purpose secure token.

Create a certificate pool containing all the certificates found in the specified directory.

Pad an AES block.

Unpad an AES block.

Compare strings in constant time.

Sign data using HMAC.

Produce a serialized, base64-encoded message and its signature.

Verify a signature.

Validate a message signature and, if valid, unmarshal the message.

Digest algorithms.

hash generator.