package pwgenerator // cryptoShuffler is used to shuffle a slice in a cryptographically sane way. type cryptoShuffler struct{} // Char is implemented as a rune. type Char rune // CharSet is a collection of characters (Char) but with additional methods (e.g. sort.Sort interface conformance). type CharSet []Char // GenOpts controls what kind of (and how many) password(s) should be generated. type GenOpts struct { /* Some references below contain a reference to the character's hex ASCII. If you need the decimal/octal/etc. reference instead, you can cross-reference it via https://square-r00t.net/ascii.html. */ /* HumanOnly avoids visually-ambiguous characters if enabled, ensuring a more readable, visually-distinguishable, and accessible but MUCH smaller password character space (from about 220 characters to ), thus much less secure. TODO: Get feedback on this. I feel like I'm trimming out WAY too many chars. */ // HumanOnly bool `json:"do_human_readable"` // Alpha is true if letters (0x41 to 0x5a, 0x61 to 0x7a) should be included. Alpha bool `json:"do_alpha"` // Numeric is true if numbers (0x30 to 0x39) should be included. Numeric bool `json:"do_numeric"` // Symbols is true if non-alphanumeric characters (between 0x21 and 0x7e) should be included. Symbols bool `json:"do_symbols"` // ExtendedSymbols is true if non-alphanumeric characters in the "extended ASCII" set (0x80 to 0xff) should be included. ExtendedSymbols bool `json:"do_extended"` // CountUpper specifies how many uppercase letters (0x41 to 0x5a) should be specified at a minimum. CountUpper uint `json:"uppers"` // CountLower specifies how many lowercase letters (0x61 to 0x7a) should be specified at a minimum. CountLower uint `json:"lowers"` // CountNumbers specifies how many numbers (0x30 to 0x39) should be specified at a minimum. CountNumbers uint `json:"numbers"` // CountSymbols specifies how many symbols (0x21 to 0x7e) should be specified at a minimum. CountSymbols uint `json:"symbols"` // CountExtended specifies how many extended symbols (0x80 to 0xff) should be specified at a minimum. CountExtended uint `json:"extended"` // DisabledChars includes characters that should NOT be included from the above selection options. DisabledChars CharSet `json:"disabled_chars"` // LengthMin specifies how long (in characters/bytes) each password should be at minimum. Use 0 for no minimum. LengthMin uint `json:"length_min"` /* LengthMax specifies the maximum length for each password. Set to 0 for no limit (the language has a hard limit of 18446744073709551615; this is limited to 256 for performance reasons). */ LengthMax uint `json:"length_max"` // Count specifies how many passwords to generate. If 0, the default is 1. Count uint `json:"count"` // explicitCharset is the collection of acceptable characters as explicitly defined by the caller, if any. explicitCharset CharSet } // selectFilter is used to include specified number of characters. type selectFilter struct { upperCounter uint lowerCounter uint numberCounter uint symbolCounter uint extendedCounter uint }