Returns uniform random string containing at least the given
number of bits of entropy.
For example, randomStringForEntropy(128) will return a 22-character
alphanumeric string, while randomStringForEntropy(128, "0123456789")
will return a 39-character numeric string, both will contain at
least 128 bits of entropy.
Returns uniform random string containing at least the given number of bits of entropy.
For example, randomStringForEntropy(128) will return a 22-character alphanumeric string, while randomStringForEntropy(128, "0123456789") will return a 39-character numeric string, both will contain at least 128 bits of entropy.
Default charset generates case-sensitive alphanumeric strings (0-9, A-Z, a-z).