Crypt::Misc - miscellaneous functions related to (or used by) CryptX
This module contains a collection of mostly unsorted functions loosely-related to CryptX distribution but not implementing cryptography.
Most of them are also available in other perl modules but once you utilize CryptX you might avoid dependencies on other modules by using functions from Crypt::Misc.
use Crypt::Misc ':all'; # Base64 and Base64/URL-safe functions $base64 = encode_b64($rawbytes); $rawbytes = decode_b64($base64); $base64url = encode_b64u($encode_b64u); $rawbytes = decode_b64u($base64url); # read/write file $rawdata = read_rawfile($filename); write_rawfile($filename, $rawdata); # convert PEM/DER $der_data = pem_to_der($pem_data); $pem_data = der_to_pem($der_data); # others die "mismatch" unless slow_eq($str1, $str2);
By default, Crypt::Misc doesn't import any function. You can import individual functions like this:
use Crypt::Misc qw(read_rawfile);
Or import all available functions:
use Crypt::Misc ':all';
Since: CryptX-0.029
$base64string = encode_b64($rawdata);
Encode $rawbytes into Base64 string, no line-endings in the output string.
$rawdata = encode_b64($base64string);
Decode a Base64 string.
$base64url_string = encode_b64($rawdata);
Encode $rawbytes into Base64/URL-Safe string, no line-endings in the output string.
$rawdata = encode_b64($base64url_string);
Decode a Base64/URL-Safe string.
$rawdata = read_rawfile($filename);
Read file $filename into a scalar as a binary data (without decoding/transformation).
$filename
write_rawfile($filename, $rawdata);
Write $rawdata to file <$filename> as binary data.
$rawdata
if (slow_eq($data1, $data2)) { ... }
Constant time compare (to avoid timing side-channel).
$der_data = pem_to_der($pem_data); #or $der_data = pem_to_der($pem_data, $password);
Convert PEM to DER representation. Supports also password protected PEM data.
$pem_data = der_to_pem($pem_data, $header_name); #or $pem_data = der_to_pem($pem_data, $header_name, $password); #or $pem_data = der_to_pem($pem_data, $header_name, $passord, $cipher_name); # $header_name e.g. "PUBLIC KEY", "RSA PRIVATE KEY" ... # $cipher_name e.g. "DES-EDE3-CBC", "AES-256-CBC" (DEFAULT) ...
Convert DER to PEM representation. Supports also password protected PEM data.
Since: CryptX-0.031
my $uuid = random_v4uuid();
Returns cryptographically strong Version 4 random UUID: xxxxxxxx-xxxx-4xxx-Yxxx-xxxxxxxxxxxx where x is any hexadecimal digit and Y is one of 8, 9, A, B (1000, 1001, 1010, 1011) e.g. f47ac10b-58cc-4372-a567-0e02b2c3d479.
xxxxxxxx-xxxx-4xxx-Yxxx-xxxxxxxxxxxx
x
Y
f47ac10b-58cc-4372-a567-0e02b2c3d479
if (is_v4uuid($uuid)) { ... }
Checks the given $uuid string whether it matches V4 UUID format and returns 0 (mismatch) or 1 (match).
$uuid
0
1
CryptX
To install CryptX, copy and paste the appropriate command in to your terminal.
cpanm
cpanm CryptX
CPAN shell
perl -MCPAN -e shell install CryptX
For more information on module installation, please visit the detailed CPAN module installation guide.