Lianja
Lianja
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 Lianja Downloads
llSuccess = .F.
// 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.
loSbRsaJwk = createobject("CkStringBuilder")
loSbRsaJwk.Append('{"kty":"RSA",')
loSbRsaJwk.Append('"n":"ofgWCuLjybRlzo0tZWJjNiuSfb4p4fAkd_wWJcyQoTbji9k0l8W26mPddx')
loSbRsaJwk.Append("HmfHQp-Vaw-4qPCJrcS2mJPMEzP1Pt0Bm4d4QlL-yRT-SFd2lZS-pCgNMs")
loSbRsaJwk.Append("D1W_YpRPEwOWvG6b32690r2jZ47soMZo9wGzjb_7OMg0LOL-bSf63kpaSH")
loSbRsaJwk.Append("SXndS5z5rexMdbBYUsLA9e-KXBdQOS-UTo7WTBEMa2R2CapHg665xsmtdV")
loSbRsaJwk.Append("MTBQY4uDZlxvb3qCo5ZwKh9kG4LT6_I5IhlJH7aGhyxXFvUK-DWNmoudF8")
loSbRsaJwk.Append('NAco9_h9iaGNj8q2ethFkMLs91kzk2PAcDTW9gb54h4FRWyuXpoQ",')
loSbRsaJwk.Append('"e":"AQAB",')
loSbRsaJwk.Append('"d":"Eq5xpGnNCivDflJsRQBXHx1hdR1k6Ulwe2JZD50LpXyWPEAeP88vLNO97I')
loSbRsaJwk.Append("jlA7_GQ5sLKMgvfTeXZx9SE-7YwVol2NXOoAJe46sui395IW_GO-pWJ1O0")
loSbRsaJwk.Append("BkTGoVEn2bKVRUCgu-GjBVaYLU6f3l9kJfFNS3E0QbVdxzubSu3Mkqzjkn")
loSbRsaJwk.Append("439X0M_V51gfpRLI9JYanrC4D4qAdGcopV_0ZHHzQlBjudU2QvXt4ehNYT")
loSbRsaJwk.Append("CBr6XCLQUShb1juUO1ZdiYoFaFQT5Tw8bGUl_x_jTj3ccPDVZFD9pIuhLh")
loSbRsaJwk.Append('BOneufuBiB4cS98l2SR_RQyGWSeWjnczT0QU91p1DhOVRuOopznQ",')
loSbRsaJwk.Append('"p":"4BzEEOtIpmVdVEZNCqS7baC4crd0pqnRH_5IB3jw3bcxGn6QLvnEtfdUdi')
loSbRsaJwk.Append("YrqBdss1l58BQ3KhooKeQTa9AB0Hw_Py5PJdTJNPY8cQn7ouZ2KKDcmnPG")
loSbRsaJwk.Append('BY5t7yLc1QlQ5xHdwW1VhvKn-nXqhJTBgIPgtldC-KDV5z-y2XDwGUc",')
loSbRsaJwk.Append('"q":"uQPEfgmVtjL0Uyyx88GZFF1fOunH3-7cepKmtH4pxhtCoHqpWmT8YAmZxa')
loSbRsaJwk.Append("ewHgHAjLYsp1ZSe7zFYHj7C6ul7TjeLQeZD_YwD66t62wDmpe_HlB-TnBA")
loSbRsaJwk.Append('-njbglfIsRLtXlnDzQkv5dTltRJ11BKBBypeeF6689rjcJIDEz9RWdc",')
loSbRsaJwk.Append('"dp":"BwKfV3Akq5_MFZDFZCnW-wzl-CCo83WoZvnLQwCTeDv8uzluRSnm71I3Q')
loSbRsaJwk.Append("CLdhrqE2e9YkxvuxdBfpT_PI7Yz-FOKnu1R6HsJeDCjn12Sk3vmAktV2zb")
loSbRsaJwk.Append('34MCdy7cpdTh_YVr7tss2u6vneTwrA86rZtu5Mbr1C1XsmvkxHQAdYo0",')
loSbRsaJwk.Append('"dq":"h_96-mK1R_7glhsum81dZxjTnYynPbZpHziZjeeHcXYsXaaMwkOlODsWa')
loSbRsaJwk.Append("7I9xXDoRwbKgB719rrmI2oKr6N3Do9U0ajaHF-NKJnwgjMd2w9cjz3_-ky")
loSbRsaJwk.Append('NlxAr2v4IKhGNpmM5iIgOS1VZnOZ68m6_pbLBSp3nssTdlqvd0tIiTHU",')
loSbRsaJwk.Append('"qi":"IYd7DHOhrWvxkwPQsRM2tOgrjbcrfvtQJipd-DlcxyVuuM9sQLdgjVk2o')
loSbRsaJwk.Append("y26F0EmpScGLq2MowX7fhd_QJQ3ydy5cY7YIBi87w93IKLEdfnbJtoOPLU")
loSbRsaJwk.Append('W0ITrJReOgo1cq9SbsxYawBgfp_gh6A5603k2-ZQwVK0JKSHuLFkuQ3U"')
loSbRsaJwk.Append("}")
loRsaKey = createobject("CkPrivateKey")
// 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..)
llSuccess = loRsaKey.LoadJwk(loSbRsaJwk.GetAsString())
if (llSuccess <> .T.) then
? loRsaKey.LastErrorText
release loSbRsaJwk
release loRsaKey
return
endif
// ---------------------------------------------------
// Use the following ECC key loaded from JWK format.
loSbEccJwk = createobject("CkStringBuilder")
loSbEccJwk.Append('{"kty":"EC",')
loSbEccJwk.Append('"crv":"P-256",')
loSbEccJwk.Append('"x":"f83OJ3D2xF1Bg8vub9tLe1gHMzV76e8Tus9uPHvRVEU",')
loSbEccJwk.Append('"y":"x_FEzRu9m36HLN_tue659LNpXW6pCyStikYjKIWI5a0",')
loSbEccJwk.Append('"d":"jpsQnnGQmL-YBIffH1136cspYG6-0iY7X1fCE9-E9LI"')
loSbEccJwk.Append("}")
loEccKey = createobject("CkPrivateKey")
// 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..)
llSuccess = loEccKey.LoadJwk(loSbEccJwk.GetAsString())
if (llSuccess <> .T.) then
? loEccKey.LastErrorText
release loSbRsaJwk
release loRsaKey
release loSbEccJwk
release loEccKey
return
endif
// ---------------------------------------------------
// The HMAC key (in base64url format)
lcHmacKey = "AyM1SysPpbyDfgZld3umj1qzKObwVMkoqQ-EstJQLr_T-1qS0gZH75aKtMN3Yj0iPS4hcgUuTwjAzZr1Z9CAow"
// ---------------------------------------------------
// Prepare the headers..
// RSASSA-PKCS1-v1_5 SHA-256
loJwsProtHdr0 = createobject("CkJsonObject")
loJwsProtHdr0.AppendString("alg","RS256")
loJwsUnprotHdr0 = createobject("CkJsonObject")
loJwsUnprotHdr0.AppendString("kid","myRsaKey")
// ECDSA using P-256 and SHA-256
loJwsProtHdr1 = createobject("CkJsonObject")
loJwsProtHdr1.AppendString("alg","ES256")
loJwsUnprotHdr1 = createobject("CkJsonObject")
loJwsUnprotHdr1.AppendString("kid","myEcKey")
// HMAC using SHA-256
loJwsProtHdr2 = createobject("CkJsonObject")
loJwsProtHdr2.AppendString("alg","HS256")
loJwsUnprotHdr2 = createobject("CkJsonObject")
loJwsUnprotHdr2.AppendString("kid","myMacKey")
// ---------------------------------------------------
// First set the JWS headers, keys, and payload, then we'll create the JWS...
loJws = createobject("CkJws")
loJws.SetProtectedHeader(0,loJwsProtHdr0)
loJws.SetUnprotectedHeader(0,loJwsUnprotHdr0)
loJws.SetProtectedHeader(1,loJwsProtHdr1)
loJws.SetUnprotectedHeader(1,loJwsUnprotHdr1)
loJws.SetProtectedHeader(2,loJwsProtHdr2)
loJws.SetUnprotectedHeader(2,loJwsUnprotHdr2)
loJws.SetPrivateKey(0,loRsaKey)
loJws.SetPrivateKey(1,loEccKey)
loJws.SetMacKey(2,lcHmacKey,"base64url")
llBIncludeBom = .F.
lcPayloadStr = "In our village, folks say God crumbles up the old moon into stars."
loJws.SetPayload(lcPayloadStr,"utf-8",llBIncludeBom)
// ---------------------------------------------------
// Create the JWS.
// Givent that multiple signatures will exist, only the general JSON serialization
// format is possible, and that is what will be produced.
lcJwsStr = loJws.CreateJws()
if (loJws.LastMethodSuccess <> .T.) then
? loJws.LastErrorText
release loSbRsaJwk
release loRsaKey
release loSbEccJwk
release loEccKey
release loJwsProtHdr0
release loJwsUnprotHdr0
release loJwsProtHdr1
release loJwsUnprotHdr1
release loJwsProtHdr2
release loJwsUnprotHdr2
release loJws
return
endif
// 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..
loJson = createobject("CkJsonObject")
loJson.Load(lcJwsStr)
loJson.EmitCompact = .F.
? loJson.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"
// }
// ]
// }
release loSbRsaJwk
release loRsaKey
release loSbEccJwk
release loEccKey
release loJwsProtHdr0
release loJwsUnprotHdr0
release loJwsProtHdr1
release loJwsUnprotHdr1
release loJwsProtHdr2
release loJwsUnprotHdr2
release loJws
release loJson