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MIME's Base64 encoding is based on that of the RFC 1421 version of PEM: it uses the same 64-character alphabet and encoding mechanism as PEM and uses the = symbol for output padding in the same way, as described at RFC 2045. MIME does not specify a fixed length for Base64-encoded lines, but it does specify a maximum line length of 76 characters.
The ASCII text-encoding standard uses 7 bits to encode characters. With this it is possible to encode 128 (i.e. 2 7) unique values (0–127) to represent the alphabetic, numeric, and punctuation characters commonly used in English, plus a selection of Control characters which do not represent printable characters.
The authorization method and a space character (e.g. "Basic ") is then prepended to the encoded string. For example, if the browser uses Aladdin as the username and open sesame as the password, then the field's value is the Base64 encoding of Aladdin:open sesame, or QWxhZGRpbjpvcGVuIHNlc2FtZQ==. Then the Authorization header field will appear as:
The base62 encoding scheme uses 62 characters. The characters consist of the capital letters A-Z, the lower case letters a-z and the numbers 0–9. It is a binary-to-text encoding scheme that represents binary data in an ASCII string format.
Ascii85, also called Base85, is a form of binary-to-text encoding developed by Paul E. Rutter for the btoa utility. By using five ASCII characters to represent four bytes of binary data (making the encoded size 1 ⁄ 4 larger than the original, assuming eight bits per ASCII character), it is more efficient than uuencode or Base64, which use four characters to represent three bytes of data (1 ...
the string must be UTF-8 encoded; the null terminator must be included; With this change, the version was changed to $2a$ [13] $2x$, $2y$ (June 2011) In June 2011, a bug was discovered in crypt_blowfish, a PHP implementation of bcrypt. It was mis-handling characters with the 8th bit set. [14]
As of April 18, 2014, Encoder 8.3 was released with support for encoding PHP 5.5 language features. [ 5 ] In May 2015, ionCube released version 9 with support for PHP 5.6 language syntax and new security features such as decrypting compiled code using algorithmically generated runtime generated keys rather than static keys, [ 6 ] followed by ...
uuencoding is a form of binary-to-text encoding that originated in the Unix programs uuencode and uudecode written by Mary Ann Horton at the University of California, Berkeley in 1980, [1] for encoding binary data for transmission in email systems.