Chilkat Examples

ChilkatHOMEAndroid™Classic ASPCC++C#Mono C#.NET Core C#C# UWP/WinRTDataFlexDelphi ActiveXDelphi DLLVisual FoxProJavaLianjaMFCObjective-CPerlPHP ActiveXPHP ExtensionPowerBuilderPowerShellPureBasicCkPythonChilkat2-PythonRubySQL ServerSwift 2Swift 3/4TclUnicode CUnicode C++Visual Basic 6.0VB.NETVB.NET UWP/WinRTVBScriptXojo PluginNode.jsExcelGo

Perl Examples

Web API Categories

ASN.1
Amazon Glacier
Amazon S3
Amazon S3 (new)
Amazon SES
Amazon SNS
Amazon SQS
Async
Azure Cloud Storage
Azure Service Bus
Base64
Bounced Email
Box
CAdES
CSR
CSV
Certificates
Compression
DKIM / DomainKey
DSA
Diffie-Hellman
Digital Signatures
Dropbox
Dynamics CRM
ECC
Email Object
Encryption
FTP
FileAccess
Firebase
GMail REST API
Geolocation
Google APIs
Google Calendar
Google Cloud Storage
Google Drive
Google Photos
Google Sheets
Google Tasks
Gzip
HTML-to-XML/Text

HTTP
HTTP Misc
IMAP
JSON
JSON Web Encryption (JWE)
JSON Web Signatures (JWS)
JSON Web Token (JWT)
Java KeyStore (JKS)
MHT / HTML Email
MIME
Microsoft Graph
NTLM
OAuth1
OAuth2
OneDrive
OpenSSL
Outlook
PEM
PFX/P12
POP3
PRNG
REST
REST Misc
RSA Encryption
SCP
SFTP
SMTP
SSH
SSH Key
SSH Tunnel
SharePoint
Socket/SSL/TLS
Spider
Stream
Tar Archive
Upload
WebSocket
XAdES
XML
XML Digital Signatures
XMP
Zip
curl

 

 

 

(Perl) Create a JWS Using ECDSA P-256 SHA-256

Creates and validates a JSON Web Signature (JWS) that uses ECDSA P-256 SHA-256

Note: This example requires Chilkat v9.5.0.66 or greater.

Chilkat Perl Downloads

Perl Module for Windows, Linux, Alpine Linux,
MAC OS X, Solaris, FreeBSD, OpenBSD,
Raspberry Pi and other single board computers

use chilkat();

#  This requires the Chilkat API to have been previously unlocked.
#  See Global Unlock Sample for sample code.

#  Note: This example requires Chilkat v9.5.0.66 or greater.

#  Use the following ECC key loaded from JWK format.
$sbJwk = chilkat::CkStringBuilder->new();
$sbJwk->Append("{\"kty\":\"EC\",");
$sbJwk->Append("\"crv\":\"P-256\",");
$sbJwk->Append("\"x\":\"f83OJ3D2xF1Bg8vub9tLe1gHMzV76e8Tus9uPHvRVEU\",");
$sbJwk->Append("\"y\":\"x_FEzRu9m36HLN_tue659LNpXW6pCyStikYjKIWI5a0\",");
$sbJwk->Append("\"d\":\"jpsQnnGQmL-YBIffH1136cspYG6-0iY7X1fCE9-E9LI\"");
$sbJwk->Append("}");

$eccKey = chilkat::CkPrivateKey->new();
#  Note: This example loads the ECDSA key from JWK format.  Any format can be loaded
#  into the private key object. (See the online reference documentation..)
$success = $eccKey->LoadJwk($sbJwk->getAsString());
if ($success != 1) {
    print $eccKey->lastErrorText() . "\r\n";
    exit;
}

#  Create the JWS Protected Header
$jwsProtHdr = chilkat::CkJsonObject->new();
$jwsProtHdr->AppendString("alg","ES256");

$jws = chilkat::CkJws->new();

#  Set the protected header:
$signatureIndex = 0;
$jws->SetProtectedHeader($signatureIndex,$jwsProtHdr);

#  Set the ECC key:
$jws->SetPrivateKey($signatureIndex,$eccKey);

#  Set the payload.
$bIncludeBom = 0;
$payloadStr = "In our village, folks say God crumbles up the old moon into stars.";
$jws->SetPayload($payloadStr,"utf-8",$bIncludeBom);

#  Create the JWS
#  By default, the compact serialization is used.
$jwsCompact = $jws->createJws();
if ($jws->get_LastMethodSuccess() != 1) {
    print $jws->lastErrorText() . "\r\n";
    exit;
}

print "JWS: " . $jwsCompact . "\r\n";

#  Note: ECC signatures use random values, so the output will be different each time a signature is produced.
#  sample output:
#  JWS: eyJhbGciOiJFUzI1NiJ9.SW4gb3VyIHZpbGxhZ2UsIGZvbGtzIHNheSBHb2QgY3J1bWJsZXMgdXAgdGhlIG9sZCBtb29uIGludG8gc3RhcnMu.J6EGTNkeuEjehHHBu0SOKzifm8r35wbx49A5964pxzB7gannyZZPMkK7vmlaPJ-K8Xmm8cZsQySAPC12Xd8avw

#  Now load the JWS, validate, and recover the original text.
$jws2 = chilkat::CkJws->new();

#  Load the JWS.
$success = $jws2->LoadJws($jwsCompact);

# eccPubKey is a PublicKey
$eccPubKey = $eccKey->GetPublicKey();

#  Set the ECC public key used for validation.
$signatureIndex = 0;
$jws2->SetPublicKey($signatureIndex,$eccPubKey);

#  Validate the 1st (and only) signature at index 0..
$v = $jws2->Validate($signatureIndex);
if ($v < 0) {
    #  Perhaps Chilkat was not unlocked or the trial expired..
    print "Method call failed for some other reason." . "\r\n";
    print $jws2->lastErrorText() . "\r\n";
    exit;
}

if ($v == 0) {
    print "Invalid signature.  The ECC key was incorrect, the JWS was invalid, or both." . "\r\n";
    exit;
}

#  If we get here, the signature was validated..
print "Signature validated." . "\r\n";

#  Recover the original content:
print $jws2->getPayload("utf-8") . "\r\n";

#  Examine the protected header:
# joseHeader is a JsonObject
$joseHeader = $jws2->GetProtectedHeader($signatureIndex);
if ($jws2->get_LastMethodSuccess() != 1) {
    print "No protected header found at the given index." . "\r\n";
    exit;
}

$joseHeader->put_EmitCompact(0);

print "Protected (JOSE) header:" . "\r\n";
print $joseHeader->emit() . "\r\n";

#  Output:

#  Signature validated.
#  In our village, folks say God crumbles up the old moon into stars.
#  Protected (JOSE) header:
#  {
#    "alg": "ES256"
#  }

 

© 2000-2019 Chilkat Software, Inc. All Rights Reserved.