Crypt::Digest::MD2 − Hash function MD2 [size: 128 bits]
### Functional
interface:
use Crypt::Digest::MD2 qw( md2 md2_hex md2_b64 md2_b64u
md2_file md2_file_hex md2_file_b64 md2_file_b64u );
# calculate digest from string/buffer
$md2_raw = md2('data string');
$md2_hex = md2_hex('data string');
$md2_b64 = md2_b64('data string');
$md2_b64u = md2_b64u('data string');
# calculate digest from file
$md2_raw = md2_file('filename.dat');
$md2_hex = md2_file_hex('filename.dat');
$md2_b64 = md2_file_b64('filename.dat');
$md2_b64u = md2_file_b64u('filename.dat');
# calculate digest from filehandle
$md2_raw = md2_file(*FILEHANDLE);
$md2_hex = md2_file_hex(*FILEHANDLE);
$md2_b64 = md2_file_b64(*FILEHANDLE);
$md2_b64u = md2_file_b64u(*FILEHANDLE);
### OO interface:
use Crypt::Digest::MD2;
$d = Crypt::Digest::MD2−>new;
$d−>add('any data');
$d−>addfile('filename.dat');
$d−>addfile(*FILEHANDLE);
$result_raw = $d−>digest; # raw bytes
$result_hex = $d−>hexdigest; # hexadecimal form
$result_b64 = $d−>b64digest; # Base64 form
$result_b64u = $d−>b64udigest; # Base64 URL Safe
form
Provides an interface to the MD2 digest algorithm.
Nothing is exported by default.
You can export selected functions:
use
Crypt::Digest::MD2 qw(md2 md2_hex md2_b64 md2_b64u
md2_file md2_file_hex md2_file_b64 md2_file_b64u);
Or all of them at once:
use Crypt::Digest::MD2 ':all';
Logically joins all arguments into a single string, and returns its MD2 digest encoded as a binary string.
$md2_raw =
md2('data string');
#or
$md2_raw = md2('any data', 'more data', 'even more
data');
Logically joins all arguments into a single string, and returns its MD2 digest encoded as a hexadecimal string.
$md2_hex =
md2_hex('data string');
#or
$md2_hex = md2_hex('any data', 'more data', 'even more
data');
Logically joins all arguments into a single string, and returns its MD2 digest encoded as a Base64 string, with trailing ’=’ padding.
$md2_b64 =
md2_b64('data string');
#or
$md2_b64 = md2_b64('any data', 'more data', 'even more
data');
Logically joins all arguments into a single string, and returns its MD2 digest encoded as a Base64 URL Safe string (see RFC 4648 section 5).
$md2_b64url =
md2_b64u('data string');
#or
$md2_b64url = md2_b64u('any data', 'more data', 'even more
data');
Reads file (defined by filename or filehandle) content, and returns its MD2 digest encoded as a binary string.
$md2_raw =
md2_file('filename.dat');
#or
$md2_raw = md2_file(*FILEHANDLE);
Reads file (defined by filename or filehandle) content, and returns its MD2 digest encoded as a hexadecimal string.
$md2_hex =
md2_file_hex('filename.dat');
#or
$md2_hex = md2_file_hex(*FILEHANDLE);
BEWARE: You have to make sure that the filehandle is in binary mode before you pass it as argument to the addfile() method.
Reads file (defined by filename or filehandle) content, and returns its MD2 digest encoded as a Base64 string, with trailing ’=’ padding.
$md2_b64 =
md2_file_b64('filename.dat');
#or
$md2_b64 = md2_file_b64(*FILEHANDLE);
Reads file (defined by filename or filehandle) content, and returns its MD2 digest encoded as a Base64 URL Safe string (see RFC 4648 section 5).
$md2_b64url =
md2_file_b64u('filename.dat');
#or
$md2_b64url = md2_file_b64u(*FILEHANDLE);
The OO interface provides the same set of functions as Crypt::Digest.
$d = Crypt::Digest::MD2−>new();
$d−>clone();
$d−>reset();
$d−>add('any
data');
#or
$d−>add('any data', 'more data', 'even more
data');
$d−>addfile('filename.dat');
#or
$d−>addfile(*FILEHANDLE);
$d−>add_bits($bit_string);
# e.g. $d−>add_bits("111100001010");
#or
$d−>add_bits($data, $nbits); # e.g.
$d−>add_bits("\xF0\xA0", 16);
$d−>hashsize;
#or
Crypt::Digest::MD2−>hashsize();
#or
Crypt::Digest::MD2::hashsize();
$result_raw = $d−>digest();
$result_hex = $d−>hexdigest();
$result_b64 = $d−>b64digest();
$result_b64url = $d−>b64udigest();
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CryptX, Crypt::Digest |
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<https://en.wikipedia.org/wiki/MD2_(cryptography)> |