Expand description
Provides Alphabet and constants for alphabets commonly used in the wild.
Structs§
- Alphabet
- An alphabet defines the 64 ASCII characters (symbols) used for base64.
- Symbol
- An ASCII printable byte suitable for use as a base64 symbol in an alphabet or as custom padding.
Enums§
- Parse
Alphabet Error - Possible errors when constructing an Alphabet from a
str.
Constants§
- ALPHABET_
LEN 🔒 - Unsurprisingly, there are 64 symbols in a Base64 alphabet.
- BCRYPT
- The bcrypt alphabet.
- BIN_HEX
- The alphabet used in
BinHex4.0 files. - CRYPT
- The
crypt(3)alphabet (with.and/as the first two characters). - IMAP_
MUTF7 - The alphabet used in IMAP-modified UTF-7 (with
+and,). - PADDING_
SYMBOL 🔒 - Pad symbol for non-weird alphabets.
- STANDARD
- The standard alphabet (with
+and/) specified in RFC 4648. - URL_
SAFE - The URL-safe alphabet (with
-and_) specified in RFC 4648.
Functions§
- is_
valid_ 🔒b64_ symbol - Must be ascii printable. 127 (DEL) is commonly considered printable for some reason but clearly unsuitable for base64.