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(Go) Create JWS with Multiple Signatures using the General JSON Serialization FormatCreates 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.
// 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 := chilkat.NewStringBuilder() 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 := chilkat.NewPrivateKey() // 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 != true { fmt.Println(rsaKey.LastErrorText()) sbRsaJwk.DisposeStringBuilder() rsaKey.DisposePrivateKey() return } // --------------------------------------------------- // Use the following ECC key loaded from JWK format. sbEccJwk := chilkat.NewStringBuilder() 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 := chilkat.NewPrivateKey() // 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 != true { fmt.Println(eccKey.LastErrorText()) sbRsaJwk.DisposeStringBuilder() rsaKey.DisposePrivateKey() sbEccJwk.DisposeStringBuilder() eccKey.DisposePrivateKey() return } // --------------------------------------------------- // The HMAC key (in base64url format) hmacKey := "AyM1SysPpbyDfgZld3umj1qzKObwVMkoqQ-EstJQLr_T-1qS0gZH75aKtMN3Yj0iPS4hcgUuTwjAzZr1Z9CAow" // --------------------------------------------------- // Prepare the headers.. // RSASSA-PKCS1-v1_5 SHA-256 jwsProtHdr0 := chilkat.NewJsonObject() jwsProtHdr0.AppendString("alg","RS256") jwsUnprotHdr0 := chilkat.NewJsonObject() jwsUnprotHdr0.AppendString("kid","myRsaKey") // ECDSA using P-256 and SHA-256 jwsProtHdr1 := chilkat.NewJsonObject() jwsProtHdr1.AppendString("alg","ES256") jwsUnprotHdr1 := chilkat.NewJsonObject() jwsUnprotHdr1.AppendString("kid","myEcKey") // HMAC using SHA-256 jwsProtHdr2 := chilkat.NewJsonObject() jwsProtHdr2.AppendString("alg","HS256") jwsUnprotHdr2 := chilkat.NewJsonObject() jwsUnprotHdr2.AppendString("kid","myMacKey") // --------------------------------------------------- // First set the JWS headers, keys, and payload, then we'll create the JWS... jws := chilkat.NewJws() jws.SetProtectedHeader(0,jwsProtHdr0) jws.SetUnprotectedHeader(0,jwsUnprotHdr0) jws.SetProtectedHeader(1,jwsProtHdr1) jws.SetUnprotectedHeader(1,jwsUnprotHdr1) jws.SetProtectedHeader(2,jwsProtHdr2) jws.SetUnprotectedHeader(2,jwsUnprotHdr2) jws.SetPrivateKey(0,rsaKey) jws.SetPrivateKey(1,eccKey) jws.SetMacKey(2,hmacKey,"base64url") bIncludeBom := false 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() != true { fmt.Println(jws.LastErrorText()) sbRsaJwk.DisposeStringBuilder() rsaKey.DisposePrivateKey() sbEccJwk.DisposeStringBuilder() eccKey.DisposePrivateKey() jwsProtHdr0.DisposeJsonObject() jwsUnprotHdr0.DisposeJsonObject() jwsProtHdr1.DisposeJsonObject() jwsUnprotHdr1.DisposeJsonObject() jwsProtHdr2.DisposeJsonObject() jwsUnprotHdr2.DisposeJsonObject() jws.DisposeJws() return } // 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 := chilkat.NewJsonObject() json.Load(*jwsStr) json.SetEmitCompact(false) fmt.Println(*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" // } // ] // } sbRsaJwk.DisposeStringBuilder() rsaKey.DisposePrivateKey() sbEccJwk.DisposeStringBuilder() eccKey.DisposePrivateKey() jwsProtHdr0.DisposeJsonObject() jwsUnprotHdr0.DisposeJsonObject() jwsProtHdr1.DisposeJsonObject() jwsUnprotHdr1.DisposeJsonObject() jwsProtHdr2.DisposeJsonObject() jwsUnprotHdr2.DisposeJsonObject() jws.DisposeJws() json.DisposeJsonObject() |
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