C.2. Escaping Unsafe Characters

Any unsafe characters in the URL need to be escaped, or substituted with a special sequence of characters.

For example, a space is an unsafe character that must be represented as %20 within the URL. Thus, the distinguished name o=example.com corporation must be encoded as o=example.com%20corporation.

The following table lists the characters that are considered unsafe within URLs and provides the associated escape characters to use in place of the unsafe character: