Decodes a character string, raw vector or other object from base64 encoding.
Details
The value of ‘convert’ should be set to TRUE, FALSE or NA to be the reverse of the 3 encoding operations (for strings, raw vectors and arbitrary objects), in order to return the original object.
References
This implementation is based that by 'The Mbed TLS Contributors' under the 'Mbed TLS' Trusted Firmware Project at https://www.trustedfirmware.org/projects/mbed-tls.