Delphi ActiveX
Delphi ActiveX
Create JWS with Multiple Signatures using the General JSON Serialization Format
See more JSON Web Signatures (JWS) Examples
Creates a JSON Web Signature (JWS) containing 3 signatures and output using the general JSON serialization format.Chilkat supports all of the following JWS algorithms:
+--------------+-------------------------------+--------------------+ | "alg" Param | Digital Signature or MAC | Implementation | | Value | Algorithm | Requirements | +--------------+-------------------------------+--------------------+ | HS256 | HMAC using SHA-256 | Required | | HS384 | HMAC using SHA-384 | Optional | | HS512 | HMAC using SHA-512 | Optional | | RS256 | RSASSA-PKCS1-v1_5 using | Recommended | | | SHA-256 | | | RS384 | RSASSA-PKCS1-v1_5 using | Optional | | | SHA-384 | | | RS512 | RSASSA-PKCS1-v1_5 using | Optional | | | SHA-512 | | | ES256 | ECDSA using P-256 and SHA-256 | Recommended+ | | ES384 | ECDSA using P-384 and SHA-384 | Optional | | ES512 | ECDSA using P-521 and SHA-512 | Optional | | PS256 | RSASSA-PSS using SHA-256 and | Optional | | | MGF1 with SHA-256 | | | PS384 | RSASSA-PSS using SHA-384 and | Optional | | | MGF1 with SHA-384 | | | PS512 | RSASSA-PSS using SHA-512 and | Optional | | | MGF1 with SHA-512 | | +--------------+-------------------------------+--------------------+
Note: This example requires Chilkat v9.5.0.66 or greater.
Chilkat Delphi ActiveX Downloads
uses
Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_TLB;
...
procedure TForm1.Button1Click(Sender: TObject);
var
success: Integer;
sbRsaJwk: TChilkatStringBuilder;
rsaKey: TPrivateKey;
sbEccJwk: TChilkatStringBuilder;
eccKey: TPrivateKey;
hmacKey: WideString;
jwsProtHdr0: TChilkatJsonObject;
jwsUnprotHdr0: TChilkatJsonObject;
jwsProtHdr1: TChilkatJsonObject;
jwsUnprotHdr1: TChilkatJsonObject;
jwsProtHdr2: TChilkatJsonObject;
jwsUnprotHdr2: TChilkatJsonObject;
jws: TChilkatJws;
bIncludeBom: Integer;
payloadStr: WideString;
jwsStr: WideString;
json: TChilkatJsonObject;
begin
success := 0;
// 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.
// The JWS to be created will contain three signatures.
// The 1st will use an ECC key, the 2nd an RSA key, and the 3rd an HMAC key.
// Prepare each key..
// ---------------------------------------------------
// Use the following RSA key loaded from JWK format.
sbRsaJwk := TChilkatStringBuilder.Create(Self);
sbRsaJwk.Append('{"kty":"RSA",');
sbRsaJwk.Append('"n":"ofgWCuLjybRlzo0tZWJjNiuSfb4p4fAkd_wWJcyQoTbji9k0l8W26mPddx');
sbRsaJwk.Append('HmfHQp-Vaw-4qPCJrcS2mJPMEzP1Pt0Bm4d4QlL-yRT-SFd2lZS-pCgNMs');
sbRsaJwk.Append('D1W_YpRPEwOWvG6b32690r2jZ47soMZo9wGzjb_7OMg0LOL-bSf63kpaSH');
sbRsaJwk.Append('SXndS5z5rexMdbBYUsLA9e-KXBdQOS-UTo7WTBEMa2R2CapHg665xsmtdV');
sbRsaJwk.Append('MTBQY4uDZlxvb3qCo5ZwKh9kG4LT6_I5IhlJH7aGhyxXFvUK-DWNmoudF8');
sbRsaJwk.Append('NAco9_h9iaGNj8q2ethFkMLs91kzk2PAcDTW9gb54h4FRWyuXpoQ",');
sbRsaJwk.Append('"e":"AQAB",');
sbRsaJwk.Append('"d":"Eq5xpGnNCivDflJsRQBXHx1hdR1k6Ulwe2JZD50LpXyWPEAeP88vLNO97I');
sbRsaJwk.Append('jlA7_GQ5sLKMgvfTeXZx9SE-7YwVol2NXOoAJe46sui395IW_GO-pWJ1O0');
sbRsaJwk.Append('BkTGoVEn2bKVRUCgu-GjBVaYLU6f3l9kJfFNS3E0QbVdxzubSu3Mkqzjkn');
sbRsaJwk.Append('439X0M_V51gfpRLI9JYanrC4D4qAdGcopV_0ZHHzQlBjudU2QvXt4ehNYT');
sbRsaJwk.Append('CBr6XCLQUShb1juUO1ZdiYoFaFQT5Tw8bGUl_x_jTj3ccPDVZFD9pIuhLh');
sbRsaJwk.Append('BOneufuBiB4cS98l2SR_RQyGWSeWjnczT0QU91p1DhOVRuOopznQ",');
sbRsaJwk.Append('"p":"4BzEEOtIpmVdVEZNCqS7baC4crd0pqnRH_5IB3jw3bcxGn6QLvnEtfdUdi');
sbRsaJwk.Append('YrqBdss1l58BQ3KhooKeQTa9AB0Hw_Py5PJdTJNPY8cQn7ouZ2KKDcmnPG');
sbRsaJwk.Append('BY5t7yLc1QlQ5xHdwW1VhvKn-nXqhJTBgIPgtldC-KDV5z-y2XDwGUc",');
sbRsaJwk.Append('"q":"uQPEfgmVtjL0Uyyx88GZFF1fOunH3-7cepKmtH4pxhtCoHqpWmT8YAmZxa');
sbRsaJwk.Append('ewHgHAjLYsp1ZSe7zFYHj7C6ul7TjeLQeZD_YwD66t62wDmpe_HlB-TnBA');
sbRsaJwk.Append('-njbglfIsRLtXlnDzQkv5dTltRJ11BKBBypeeF6689rjcJIDEz9RWdc",');
sbRsaJwk.Append('"dp":"BwKfV3Akq5_MFZDFZCnW-wzl-CCo83WoZvnLQwCTeDv8uzluRSnm71I3Q');
sbRsaJwk.Append('CLdhrqE2e9YkxvuxdBfpT_PI7Yz-FOKnu1R6HsJeDCjn12Sk3vmAktV2zb');
sbRsaJwk.Append('34MCdy7cpdTh_YVr7tss2u6vneTwrA86rZtu5Mbr1C1XsmvkxHQAdYo0",');
sbRsaJwk.Append('"dq":"h_96-mK1R_7glhsum81dZxjTnYynPbZpHziZjeeHcXYsXaaMwkOlODsWa');
sbRsaJwk.Append('7I9xXDoRwbKgB719rrmI2oKr6N3Do9U0ajaHF-NKJnwgjMd2w9cjz3_-ky');
sbRsaJwk.Append('NlxAr2v4IKhGNpmM5iIgOS1VZnOZ68m6_pbLBSp3nssTdlqvd0tIiTHU",');
sbRsaJwk.Append('"qi":"IYd7DHOhrWvxkwPQsRM2tOgrjbcrfvtQJipd-DlcxyVuuM9sQLdgjVk2o');
sbRsaJwk.Append('y26F0EmpScGLq2MowX7fhd_QJQ3ydy5cY7YIBi87w93IKLEdfnbJtoOPLU');
sbRsaJwk.Append('W0ITrJReOgo1cq9SbsxYawBgfp_gh6A5603k2-ZQwVK0JKSHuLFkuQ3U"');
sbRsaJwk.Append('}');
rsaKey := TPrivateKey.Create(Self);
// Note: This example loads the RSA key from JWK format. Any format can be loaded
// into the private key object. (See the online reference documentation..)
success := rsaKey.LoadJwk(sbRsaJwk.GetAsString());
if (success <> 1) then
begin
Memo1.Lines.Add(rsaKey.LastErrorText);
Exit;
end;
// ---------------------------------------------------
// Use the following ECC key loaded from JWK format.
sbEccJwk := TChilkatStringBuilder.Create(Self);
sbEccJwk.Append('{"kty":"EC",');
sbEccJwk.Append('"crv":"P-256",');
sbEccJwk.Append('"x":"f83OJ3D2xF1Bg8vub9tLe1gHMzV76e8Tus9uPHvRVEU",');
sbEccJwk.Append('"y":"x_FEzRu9m36HLN_tue659LNpXW6pCyStikYjKIWI5a0",');
sbEccJwk.Append('"d":"jpsQnnGQmL-YBIffH1136cspYG6-0iY7X1fCE9-E9LI"');
sbEccJwk.Append('}');
eccKey := TPrivateKey.Create(Self);
// 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(sbEccJwk.GetAsString());
if (success <> 1) then
begin
Memo1.Lines.Add(eccKey.LastErrorText);
Exit;
end;
// ---------------------------------------------------
// The HMAC key (in base64url format)
hmacKey := 'AyM1SysPpbyDfgZld3umj1qzKObwVMkoqQ-EstJQLr_T-1qS0gZH75aKtMN3Yj0iPS4hcgUuTwjAzZr1Z9CAow';
// ---------------------------------------------------
// Prepare the headers..
// RSASSA-PKCS1-v1_5 SHA-256
jwsProtHdr0 := TChilkatJsonObject.Create(Self);
jwsProtHdr0.AppendString('alg','RS256');
jwsUnprotHdr0 := TChilkatJsonObject.Create(Self);
jwsUnprotHdr0.AppendString('kid','myRsaKey');
// ECDSA using P-256 and SHA-256
jwsProtHdr1 := TChilkatJsonObject.Create(Self);
jwsProtHdr1.AppendString('alg','ES256');
jwsUnprotHdr1 := TChilkatJsonObject.Create(Self);
jwsUnprotHdr1.AppendString('kid','myEcKey');
// HMAC using SHA-256
jwsProtHdr2 := TChilkatJsonObject.Create(Self);
jwsProtHdr2.AppendString('alg','HS256');
jwsUnprotHdr2 := TChilkatJsonObject.Create(Self);
jwsUnprotHdr2.AppendString('kid','myMacKey');
// ---------------------------------------------------
// First set the JWS headers, keys, and payload, then we'll create the JWS...
jws := TChilkatJws.Create(Self);
jws.SetProtectedHeader(0,jwsProtHdr0.ControlInterface);
jws.SetUnprotectedHeader(0,jwsUnprotHdr0.ControlInterface);
jws.SetProtectedHeader(1,jwsProtHdr1.ControlInterface);
jws.SetUnprotectedHeader(1,jwsUnprotHdr1.ControlInterface);
jws.SetProtectedHeader(2,jwsProtHdr2.ControlInterface);
jws.SetUnprotectedHeader(2,jwsUnprotHdr2.ControlInterface);
jws.SetPrivateKey(0,rsaKey.ControlInterface);
jws.SetPrivateKey(1,eccKey.ControlInterface);
jws.SetMacKey(2,hmacKey,'base64url');
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.
// Givent that multiple signatures will exist, only the general JSON serialization
// format is possible, and that is what will be produced.
jwsStr := jws.CreateJws();
if (jws.LastMethodSuccess <> 1) then
begin
Memo1.Lines.Add(jws.LastErrorText);
Exit;
end;
// The jwsStr is contains JSON in the smallest possible size, which is a single line.
// To get in human-readable format, load into a Chilkat JSON object and emit..
json := TChilkatJsonObject.Create(Self);
json.Load(jwsStr);
json.EmitCompact := 0;
Memo1.Lines.Add(json.Emit());
// Sample output:
// {
// "payload": "SW4gb3VyIHZpbGxhZ2UsIGZvbGtzIHNheSBHb2QgY3J1bWJsZXMgdXAgdGhlIG9sZCBtb29uIGludG8gc3RhcnMu",
// "signatures": [
// {
// "protected": "eyJhbGciOiJSUzI1NiJ9",
// "header": {
// "kid": "myRsaKey"
// },
// "signature": "B04c24gSnpVm1Z-_bemfyNMCpZm6Knj1yB-yzaIOvijsWfDgoF_mSJccTIbzapNgwJudnobr5iDOfZWiRR9iqCyDJLe5M1S40vFF7MFEI3JecYRgrRc6n1lTkYLMRyVq48BwbQlmKgPqmK9drun3agklsr0FmgNx65pfmcnlYdXsgwxf8WbgppefrlrMImp-98-dNtBcUL8ce1aOjbcyVFjGMCzpm3JerQqIzWQvEwBstnMEQle73KHcyx_nsTmlzY70CaydbRTsciOATL7WfiMwuX1q9Y2NIpTg3CbOTWKdwjh7iyfiAKQxNBaF2mApnqj9hjpf8GwR-CfxAzJtPg"
// },
// {
// "protected": "eyJhbGciOiJFUzI1NiJ9",
// "header": {
// "kid": "myEcKey"
// },
// "signature": "2cbugKq0ERaQMh01n2B-86EZFYleeMf8bsccaQMxzOxAg14PxfjR3IImvodTJYqkmfBJYW203etz2-7ZtJUOGw"
// },
// {
// "protected": "eyJhbGciOiJIUzI1NiJ9",
// "header": {
// "kid": "myMacKey"
// },
// "signature": "e7R9gjx0RsUNa3c7qd8k9mQGEhtcG8vsN1W7jbLb2MA"
// }
// ]
// }
end;