Bearer tokens are a standard which is used in OAuth 2.0 . Although there have been discussions if the security mechanisms are significantly weaker than the use of using signatures as many implementations of OAuth 1.0 did (see http://tools.ietf.org/html/draft-ietf-oauth-v2-http-mac-00 ), bearer tokens are part of the OAuth 2.0 specification and therefore widely adopted in nearly all implementations. The syntax of Bearer tokens is specified in RFC6750 ( http://http://tools.ietf.org/html/rfc6750 ) This is a lean utils object to create specification compliant Bearers in Scala using the java.security.SecureRandom implementation as a randomizer. The standard generate function returns a token of 32 byte length. A second polymorphic functions allows for the generation of a token of individual size. import scala.util._ import java.security.SecureRandom /* * Generates a Bearer Token with the length of 32 characters according to the * specification RFC6750 (http://http://tools.ietf