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package Crypt::PRNG::RC4; |
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54259
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use strict; |
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use warnings; |
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our $VERSION = '0.080'; |
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use base qw(Crypt::PRNG Exporter); |
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our %EXPORT_TAGS = ( all => [qw(random_bytes random_bytes_hex random_bytes_b64 random_bytes_b64u random_string random_string_from rand irand)] ); |
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our @EXPORT_OK = ( @{ $EXPORT_TAGS{'all'} } ); |
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our @EXPORT = qw(); |
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use CryptX; |
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{ |
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### stolen from Bytes::Random::Secure |
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my $RNG_object = undef; |
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my $fetch_RNG = sub { # Lazily, instantiate the RNG object, but only once. |
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$RNG_object = Crypt::PRNG::RC4->new unless defined $RNG_object && ref($RNG_object) ne 'SCALAR'; |
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return $RNG_object; |
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}; |
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sub rand { return $fetch_RNG->()->double(@_) } |
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sub irand { return $fetch_RNG->()->int32(@_) } |
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sub random_bytes { return $fetch_RNG->()->bytes(@_) } |
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sub random_bytes_hex { return $fetch_RNG->()->bytes_hex(@_) } |
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sub random_bytes_b64 { return $fetch_RNG->()->bytes_b64(@_) } |
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sub random_bytes_b64u { return $fetch_RNG->()->bytes_b64u(@_) } |
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sub random_string_from { return $fetch_RNG->()->string_from(@_) } |
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sub random_string { return $fetch_RNG->()->string(@_) } |
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} |
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1; |
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=pod |
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=head1 NAME |
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Crypt::PRNG::RC4 - Cryptographically secure PRNG based on RC4 (stream cipher) algorithm |
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=head1 SYNOPSIS |
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### Functional interface: |
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use Crypt::PRNG::RC4 qw(random_bytes random_bytes_hex random_bytes_b64 random_string random_string_from rand irand); |
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$octets = random_bytes(45); |
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$hex_string = random_bytes_hex(45); |
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$base64_string = random_bytes_b64(45); |
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$base64url_string = random_bytes_b64u(45); |
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$alphanumeric_string = random_string(30); |
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$string = random_string_from('ACGT', 64); |
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$floating_point_number_0_to_1 = rand; |
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$floating_point_number_0_to_88 = rand(88); |
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$unsigned_32bit_int = irand; |
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### OO interface: |
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use Crypt::PRNG::RC4; |
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$prng = Crypt::PRNG::RC4->new; |
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#or |
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$prng = Crypt::PRNG::RC4->new("some data used for seeding PRNG"); |
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$octets = $prng->bytes(45); |
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$hex_string = $prng->bytes_hex(45); |
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$base64_string = $prng->bytes_b64(45); |
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$base64url_string = $prng->bytes_b64u(45); |
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$alphanumeric_string = $prng->string(30); |
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$string = $prng->string_from('ACGT', 64); |
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$floating_point_number_0_to_1 = rand; |
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$floating_point_number_0_to_88 = rand(88); |
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$unsigned_32bit_int = irand; |
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=head1 DESCRIPTION |
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Provides an interface to the RC4 based pseudo random number generator |
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All methods and functions are the same as for L. |
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=head1 FUNCTIONS |
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=head2 random_bytes |
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See L. |
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=head2 random_bytes_hex |
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See L. |
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=head2 random_bytes_b64 |
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See L. |
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=head2 random_bytes_b64u |
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See L. |
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=head2 random_string |
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See L. |
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=head2 random_string_from |
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See L. |
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=head2 rand |
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See L. |
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=head2 irand |
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See L. |
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=head1 METHODS |
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=head2 new |
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See L. |
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=head2 bytes |
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See L. |
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=head2 bytes_hex |
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See L. |
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=head2 bytes_b64 |
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See L. |
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=head2 bytes_b64u |
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See L. |
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=head2 string |
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See L. |
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=head2 string_from |
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See L. |
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=head2 double |
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See L. |
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=head2 int32 |
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See L. |
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=head1 SEE ALSO |
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=over |
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=item * L |
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=item * L |
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=back |
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=cut |