Source is a cryptographically secure random number source that satisfies the
math/rand.Source and math/rand.Source64 interfaces, which are required to
make a new math/rand.Rand instance that uses crypto/rand. See also New, for a
new Rand instance using this source.
New creates a new math/rand.Rand number generator that uses the
cryptographically secure source of randomness. This is helpful for the
versatile methods like Intn, Float64, etc., which crypto/rand does not
provide. If you just need bytes, use the standard library's crypto/rand.Read.
String returns a random string of alphanumeric characters. The first
character will be a letter. If you need the first character to include
digits, generate a longer string and trim the first character.
Documentation
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