Perl

Load a JWE from a String

See more JSON Web Encryption (JWE) Examples

Demonstrates Jwe.LoadJwe, which loads a JWE from its compact serialization string so it can be decrypted.

Background. JWE (JSON Web Encryption) protects content with a content-encryption algorithm (the header enc value) while the content-encryption key is managed by the key-management algorithm (the header alg value). This example uses AES key wrapping with a symmetric wrapping key.

Chilkat Perl Downloads

Download Chilkat for Perl

Chilkat2 Perl

use strict;
use warnings;
use Chilkat2;

my $jwe = Chilkat2::Jwe->new;

# Load a JWE from its compact serialization string.
my $jweCompact = 'eyJhbGciOiJBMjU2S1ciLCJlbmMiOiJBMjU2R0NNIn0.<...>.<iv>.<ciphertext>.<tag>';
my $success = $jwe->LoadJwe($jweCompact);
if (!$success) {
    print $jwe->LastErrorText, "\n";
    exit;
}

# The 256-bit key-wrapping key (base64) for recipient index 0.  In production, obtain the key
# from a secure source rather than hard-coding it.
my $base64Key = 'YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXowMTIzNDU=';
$success = $jwe->SetWrappingKey(0, $base64Key, 'base64');
if (!$success) {
    print $jwe->LastErrorText, "\n";
    exit;
}

# The loaded JWE can now be decrypted.
my $content = $jwe->Decrypt(0, 'utf-8');
if (!$jwe->LastMethodSuccess) {
    print $jwe->LastErrorText, "\n";
    exit;
}

print $content, "\n";