MSIG
cryptoThe MSIG
function extracts a signature macro from a signed macro. The function can also be used with 3 STRING
parameters in which case is simply consumes those parameters and emits nothing. This latter case is meant for signature macros so such macros are valid macros which do nothing. See MSIGN
for the format of the signature macros.
If the input macro does not contain a signature, the result of applying MSIG
will be an empty macro.