NAME
asn_lshift - left shift an arbitrary size number
SYNOPSIS
string asn_lshift(string a, int shift, string m)
DESCRIPTION
Left shift a by the given amount, and return the result modulo m.
Arbitrary size numbers are encoded as strings, most significant byte
first. The most significant bit in the first byte, when set, indicates
that the number is negative and encoded in two's complement.
ERRORS
An error will result if shift is less than zero, or if the modulus is
less than or equal to zero.
SEE ALSO