Crypt::Digest::MD2(3pm)

1Crypt::Digest::MD2(3) User Contributed Perl DocumentationCrypt::Digest::MD2(3)
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NAME

6       Crypt::Digest::MD2 - Hash function MD2 [size: 128 bits]
7

SYNOPSIS

9          ### Functional interface:
10          use Crypt::Digest::MD2 qw( md2 md2_hex md2_b64 md2_b64u
11                                       md2_file md2_file_hex md2_file_b64 md2_file_b64u );
12
13          # calculate digest from string/buffer
14          $md2_raw  = md2('data string');
15          $md2_hex  = md2_hex('data string');
16          $md2_b64  = md2_b64('data string');
17          $md2_b64u = md2_b64u('data string');
18          # calculate digest from file
19          $md2_raw  = md2_file('filename.dat');
20          $md2_hex  = md2_file_hex('filename.dat');
21          $md2_b64  = md2_file_b64('filename.dat');
22          $md2_b64u = md2_file_b64u('filename.dat');
23          # calculate digest from filehandle
24          $md2_raw  = md2_file(*FILEHANDLE);
25          $md2_hex  = md2_file_hex(*FILEHANDLE);
26          $md2_b64  = md2_file_b64(*FILEHANDLE);
27          $md2_b64u = md2_file_b64u(*FILEHANDLE);
28
29          ### OO interface:
30          use Crypt::Digest::MD2;
31
32          $d = Crypt::Digest::MD2->new;
33          $d->add('any data');
34          $d->addfile('filename.dat');
35          $d->addfile(*FILEHANDLE);
36          $result_raw  = $d->digest;     # raw bytes
37          $result_hex  = $d->hexdigest;  # hexadecimal form
38          $result_b64  = $d->b64digest;  # Base64 form
39          $result_b64u = $d->b64udigest; # Base64 URL Safe form
40

DESCRIPTION

42       Provides an interface to the MD2 digest algorithm.
43

EXPORT

45       Nothing is exported by default.
46
47       You can export selected functions:
48
49         use Crypt::Digest::MD2 qw(md2 md2_hex md2_b64 md2_b64u
50                                             md2_file md2_file_hex md2_file_b64 md2_file_b64u);
51
52       Or all of them at once:
53
54         use Crypt::Digest::MD2 ':all';
55

FUNCTIONS

57   md2
58       Logically joins all arguments into a single string, and returns its MD2
59       digest encoded as a binary string.
60
61        $md2_raw = md2('data string');
62        #or
63        $md2_raw = md2('any data', 'more data', 'even more data');
64
65   md2_hex
66       Logically joins all arguments into a single string, and returns its MD2
67       digest encoded as a hexadecimal string.
68
69        $md2_hex = md2_hex('data string');
70        #or
71        $md2_hex = md2_hex('any data', 'more data', 'even more data');
72
73   md2_b64
74       Logically joins all arguments into a single string, and returns its MD2
75       digest encoded as a Base64 string, with trailing '=' padding.
76
77        $md2_b64 = md2_b64('data string');
78        #or
79        $md2_b64 = md2_b64('any data', 'more data', 'even more data');
80
81   md2_b64u
82       Logically joins all arguments into a single string, and returns its MD2
83       digest encoded as a Base64 URL Safe string (see RFC 4648 section 5).
84
85        $md2_b64url = md2_b64u('data string');
86        #or
87        $md2_b64url = md2_b64u('any data', 'more data', 'even more data');
88
89   md2_file
90       Reads file (defined by filename or filehandle) content, and returns its
91       MD2 digest encoded as a binary string.
92
93        $md2_raw = md2_file('filename.dat');
94        #or
95        $md2_raw = md2_file(*FILEHANDLE);
96
97   md2_file_hex
98       Reads file (defined by filename or filehandle) content, and returns its
99       MD2 digest encoded as a hexadecimal string.
100
101        $md2_hex = md2_file_hex('filename.dat');
102        #or
103        $md2_hex = md2_file_hex(*FILEHANDLE);
104
105       BEWARE: You have to make sure that the filehandle is in binary mode
106       before you pass it as argument to the addfile() method.
107
108   md2_file_b64
109       Reads file (defined by filename or filehandle) content, and returns its
110       MD2 digest encoded as a Base64 string, with trailing '=' padding.
111
112        $md2_b64 = md2_file_b64('filename.dat');
113        #or
114        $md2_b64 = md2_file_b64(*FILEHANDLE);
115
116   md2_file_b64u
117       Reads file (defined by filename or filehandle) content, and returns its
118       MD2 digest encoded as a Base64 URL Safe string (see RFC 4648 section
119       5).
120
121        $md2_b64url = md2_file_b64u('filename.dat');
122        #or
123        $md2_b64url = md2_file_b64u(*FILEHANDLE);
124

METHODS

126       The OO interface provides the same set of functions as Crypt::Digest.
127
128   new
129        $d = Crypt::Digest::MD2->new();
130
131   clone
132        $d->clone();
133
134   reset
135        $d->reset();
136
137   add
138        $d->add('any data');
139        #or
140        $d->add('any data', 'more data', 'even more data');
141
142   addfile
143        $d->addfile('filename.dat');
144        #or
145        $d->addfile(*FILEHANDLE);
146
147   add_bits
148        $d->add_bits($bit_string);   # e.g. $d->add_bits("111100001010");
149        #or
150        $d->add_bits($data, $nbits); # e.g. $d->add_bits("\xF0\xA0", 16);
151
152   hashsize
153        $d->hashsize;
154        #or
155        Crypt::Digest::MD2->hashsize();
156        #or
157        Crypt::Digest::MD2::hashsize();
158
159   digest
160        $result_raw = $d->digest();
161
162   hexdigest
163        $result_hex = $d->hexdigest();
164
165   b64digest
166        $result_b64 = $d->b64digest();
167
168   b64udigest
169        $result_b64url = $d->b64udigest();
170

NAME

SYNOPSIS

DESCRIPTION

EXPORT

FUNCTIONS

METHODS

SEE ALSO