.\" -*- mode: troff; coding: utf-8 -*- .\" Automatically generated by Pod::Man 5.0102 (Pod::Simple 3.45) .\" .\" Standard preamble: .\" ======================================================================== .de Sp \" Vertical space (when we can't use .PP) .if t .sp .5v .if n .sp .. .de Vb \" Begin verbatim text .ft CW .nf .ne \\$1 .. .de Ve \" End verbatim text .ft R .fi .. .\" \*(C` and \*(C' are quotes in nroff, nothing in troff, for use with C<>. .ie n \{\ . ds C` "" . ds C' "" 'br\} .el\{\ . ds C` . ds C' 'br\} .\" .\" Escape single quotes in literal strings from groff's Unicode transform. .ie \n(.g .ds Aq \(aq .el .ds Aq ' .\" .\" If the F register is >0, we'll generate index entries on stderr for .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index .\" entries marked with X<> in POD. Of course, you'll have to process the .\" output yourself in some meaningful fashion. .\" .\" Avoid warning from groff about undefined register 'F'. .de IX .. .nr rF 0 .if \n(.g .if rF .nr rF 1 .if (\n(rF:(\n(.g==0)) \{\ . if \nF \{\ . de IX . tm Index:\\$1\t\\n%\t"\\$2" .. . if !\nF==2 \{\ . nr % 0 . nr F 2 . \} . \} .\} .rr rF .\" ======================================================================== .\" .IX Title "Crypt::Digest::MD2 3" .TH Crypt::Digest::MD2 3 2024-10-20 "perl v5.40.0" "User Contributed Perl Documentation" .\" For nroff, turn off justification. Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH NAME Crypt::Digest::MD2 \- Hash function MD2 [size: 128 bits] .SH SYNOPSIS .IX Header "SYNOPSIS" .Vb 3 \& ### 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(\*(Aqdata string\*(Aq); \& $md2_hex = md2_hex(\*(Aqdata string\*(Aq); \& $md2_b64 = md2_b64(\*(Aqdata string\*(Aq); \& $md2_b64u = md2_b64u(\*(Aqdata string\*(Aq); \& # calculate digest from file \& $md2_raw = md2_file(\*(Aqfilename.dat\*(Aq); \& $md2_hex = md2_file_hex(\*(Aqfilename.dat\*(Aq); \& $md2_b64 = md2_file_b64(\*(Aqfilename.dat\*(Aq); \& $md2_b64u = md2_file_b64u(\*(Aqfilename.dat\*(Aq); \& # 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(\*(Aqany data\*(Aq); \& $d\->addfile(\*(Aqfilename.dat\*(Aq); \& $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 .Ve .SH DESCRIPTION .IX Header "DESCRIPTION" Provides an interface to the MD2 digest algorithm. .SH EXPORT .IX Header "EXPORT" Nothing is exported by default. .PP You can export selected functions: .PP .Vb 2 \& use Crypt::Digest::MD2 qw(md2 md2_hex md2_b64 md2_b64u \& md2_file md2_file_hex md2_file_b64 md2_file_b64u); .Ve .PP Or all of them at once: .PP .Vb 1 \& use Crypt::Digest::MD2 \*(Aq:all\*(Aq; .Ve .SH FUNCTIONS .IX Header "FUNCTIONS" .SS md2 .IX Subsection "md2" Logically joins all arguments into a single string, and returns its MD2 digest encoded as a binary string. .PP .Vb 3 \& $md2_raw = md2(\*(Aqdata string\*(Aq); \& #or \& $md2_raw = md2(\*(Aqany data\*(Aq, \*(Aqmore data\*(Aq, \*(Aqeven more data\*(Aq); .Ve .SS md2_hex .IX Subsection "md2_hex" Logically joins all arguments into a single string, and returns its MD2 digest encoded as a hexadecimal string. .PP .Vb 3 \& $md2_hex = md2_hex(\*(Aqdata string\*(Aq); \& #or \& $md2_hex = md2_hex(\*(Aqany data\*(Aq, \*(Aqmore data\*(Aq, \*(Aqeven more data\*(Aq); .Ve .SS md2_b64 .IX Subsection "md2_b64" Logically joins all arguments into a single string, and returns its MD2 digest encoded as a Base64 string, \fBwith\fR trailing '=' padding. .PP .Vb 3 \& $md2_b64 = md2_b64(\*(Aqdata string\*(Aq); \& #or \& $md2_b64 = md2_b64(\*(Aqany data\*(Aq, \*(Aqmore data\*(Aq, \*(Aqeven more data\*(Aq); .Ve .SS md2_b64u .IX Subsection "md2_b64u" 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). .PP .Vb 3 \& $md2_b64url = md2_b64u(\*(Aqdata string\*(Aq); \& #or \& $md2_b64url = md2_b64u(\*(Aqany data\*(Aq, \*(Aqmore data\*(Aq, \*(Aqeven more data\*(Aq); .Ve .SS md2_file .IX Subsection "md2_file" Reads file (defined by filename or filehandle) content, and returns its MD2 digest encoded as a binary string. .PP .Vb 3 \& $md2_raw = md2_file(\*(Aqfilename.dat\*(Aq); \& #or \& $md2_raw = md2_file(*FILEHANDLE); .Ve .SS md2_file_hex .IX Subsection "md2_file_hex" Reads file (defined by filename or filehandle) content, and returns its MD2 digest encoded as a hexadecimal string. .PP .Vb 3 \& $md2_hex = md2_file_hex(\*(Aqfilename.dat\*(Aq); \& #or \& $md2_hex = md2_file_hex(*FILEHANDLE); .Ve .PP \&\fBBEWARE:\fR You have to make sure that the filehandle is in binary mode before you pass it as argument to the \fBaddfile()\fR method. .SS md2_file_b64 .IX Subsection "md2_file_b64" Reads file (defined by filename or filehandle) content, and returns its MD2 digest encoded as a Base64 string, \fBwith\fR trailing '=' padding. .PP .Vb 3 \& $md2_b64 = md2_file_b64(\*(Aqfilename.dat\*(Aq); \& #or \& $md2_b64 = md2_file_b64(*FILEHANDLE); .Ve .SS md2_file_b64u .IX Subsection "md2_file_b64u" 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). .PP .Vb 3 \& $md2_b64url = md2_file_b64u(\*(Aqfilename.dat\*(Aq); \& #or \& $md2_b64url = md2_file_b64u(*FILEHANDLE); .Ve .SH METHODS .IX Header "METHODS" The OO interface provides the same set of functions as Crypt::Digest. .SS new .IX Subsection "new" .Vb 1 \& $d = Crypt::Digest::MD2\->new(); .Ve .SS clone .IX Subsection "clone" .Vb 1 \& $d\->clone(); .Ve .SS reset .IX Subsection "reset" .Vb 1 \& $d\->reset(); .Ve .SS add .IX Subsection "add" .Vb 3 \& $d\->add(\*(Aqany data\*(Aq); \& #or \& $d\->add(\*(Aqany data\*(Aq, \*(Aqmore data\*(Aq, \*(Aqeven more data\*(Aq); .Ve .SS addfile .IX Subsection "addfile" .Vb 3 \& $d\->addfile(\*(Aqfilename.dat\*(Aq); \& #or \& $d\->addfile(*FILEHANDLE); .Ve .SS add_bits .IX Subsection "add_bits" .Vb 3 \& $d\->add_bits($bit_string); # e.g. $d\->add_bits("111100001010"); \& #or \& $d\->add_bits($data, $nbits); # e.g. $d\->add_bits("\exF0\exA0", 16); .Ve .SS hashsize .IX Subsection "hashsize" .Vb 5 \& $d\->hashsize; \& #or \& Crypt::Digest::MD2\->hashsize(); \& #or \& Crypt::Digest::MD2::hashsize(); .Ve .SS digest .IX Subsection "digest" .Vb 1 \& $result_raw = $d\->digest(); .Ve .SS hexdigest .IX Subsection "hexdigest" .Vb 1 \& $result_hex = $d\->hexdigest(); .Ve .SS b64digest .IX Subsection "b64digest" .Vb 1 \& $result_b64 = $d\->b64digest(); .Ve .SS b64udigest .IX Subsection "b64udigest" .Vb 1 \& $result_b64url = $d\->b64udigest(); .Ve .SH "SEE ALSO" .IX Header "SEE ALSO" .IP \(bu 4 CryptX, Crypt::Digest .IP \(bu 4