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(C) 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.
#include <C_CkStringBuilder.h> #include <C_CkPrivateKey.h> #include <C_CkJsonObject.h> #include <C_CkJws.h> void ChilkatSample(void) { HCkStringBuilder sbRsaJwk; HCkPrivateKey rsaKey; BOOL success; HCkStringBuilder sbEccJwk; HCkPrivateKey eccKey; const char *hmacKey; HCkJsonObject jwsProtHdr0; HCkJsonObject jwsUnprotHdr0; HCkJsonObject jwsProtHdr1; HCkJsonObject jwsUnprotHdr1; HCkJsonObject jwsProtHdr2; HCkJsonObject jwsUnprotHdr2; HCkJws jws; BOOL bIncludeBom; const char *payloadStr; const char *jwsStr; HCkJsonObject json; // 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 = CkStringBuilder_Create(); CkStringBuilder_Append(sbRsaJwk,"{\"kty\":\"RSA\","); CkStringBuilder_Append(sbRsaJwk,"\"n\":\"ofgWCuLjybRlzo0tZWJjNiuSfb4p4fAkd_wWJcyQoTbji9k0l8W26mPddx"); CkStringBuilder_Append(sbRsaJwk,"HmfHQp-Vaw-4qPCJrcS2mJPMEzP1Pt0Bm4d4QlL-yRT-SFd2lZS-pCgNMs"); CkStringBuilder_Append(sbRsaJwk,"D1W_YpRPEwOWvG6b32690r2jZ47soMZo9wGzjb_7OMg0LOL-bSf63kpaSH"); CkStringBuilder_Append(sbRsaJwk,"SXndS5z5rexMdbBYUsLA9e-KXBdQOS-UTo7WTBEMa2R2CapHg665xsmtdV"); CkStringBuilder_Append(sbRsaJwk,"MTBQY4uDZlxvb3qCo5ZwKh9kG4LT6_I5IhlJH7aGhyxXFvUK-DWNmoudF8"); CkStringBuilder_Append(sbRsaJwk,"NAco9_h9iaGNj8q2ethFkMLs91kzk2PAcDTW9gb54h4FRWyuXpoQ\","); CkStringBuilder_Append(sbRsaJwk,"\"e\":\"AQAB\","); CkStringBuilder_Append(sbRsaJwk,"\"d\":\"Eq5xpGnNCivDflJsRQBXHx1hdR1k6Ulwe2JZD50LpXyWPEAeP88vLNO97I"); CkStringBuilder_Append(sbRsaJwk,"jlA7_GQ5sLKMgvfTeXZx9SE-7YwVol2NXOoAJe46sui395IW_GO-pWJ1O0"); CkStringBuilder_Append(sbRsaJwk,"BkTGoVEn2bKVRUCgu-GjBVaYLU6f3l9kJfFNS3E0QbVdxzubSu3Mkqzjkn"); CkStringBuilder_Append(sbRsaJwk,"439X0M_V51gfpRLI9JYanrC4D4qAdGcopV_0ZHHzQlBjudU2QvXt4ehNYT"); CkStringBuilder_Append(sbRsaJwk,"CBr6XCLQUShb1juUO1ZdiYoFaFQT5Tw8bGUl_x_jTj3ccPDVZFD9pIuhLh"); CkStringBuilder_Append(sbRsaJwk,"BOneufuBiB4cS98l2SR_RQyGWSeWjnczT0QU91p1DhOVRuOopznQ\","); CkStringBuilder_Append(sbRsaJwk,"\"p\":\"4BzEEOtIpmVdVEZNCqS7baC4crd0pqnRH_5IB3jw3bcxGn6QLvnEtfdUdi"); CkStringBuilder_Append(sbRsaJwk,"YrqBdss1l58BQ3KhooKeQTa9AB0Hw_Py5PJdTJNPY8cQn7ouZ2KKDcmnPG"); CkStringBuilder_Append(sbRsaJwk,"BY5t7yLc1QlQ5xHdwW1VhvKn-nXqhJTBgIPgtldC-KDV5z-y2XDwGUc\","); CkStringBuilder_Append(sbRsaJwk,"\"q\":\"uQPEfgmVtjL0Uyyx88GZFF1fOunH3-7cepKmtH4pxhtCoHqpWmT8YAmZxa"); CkStringBuilder_Append(sbRsaJwk,"ewHgHAjLYsp1ZSe7zFYHj7C6ul7TjeLQeZD_YwD66t62wDmpe_HlB-TnBA"); CkStringBuilder_Append(sbRsaJwk,"-njbglfIsRLtXlnDzQkv5dTltRJ11BKBBypeeF6689rjcJIDEz9RWdc\","); CkStringBuilder_Append(sbRsaJwk,"\"dp\":\"BwKfV3Akq5_MFZDFZCnW-wzl-CCo83WoZvnLQwCTeDv8uzluRSnm71I3Q"); CkStringBuilder_Append(sbRsaJwk,"CLdhrqE2e9YkxvuxdBfpT_PI7Yz-FOKnu1R6HsJeDCjn12Sk3vmAktV2zb"); CkStringBuilder_Append(sbRsaJwk,"34MCdy7cpdTh_YVr7tss2u6vneTwrA86rZtu5Mbr1C1XsmvkxHQAdYo0\","); CkStringBuilder_Append(sbRsaJwk,"\"dq\":\"h_96-mK1R_7glhsum81dZxjTnYynPbZpHziZjeeHcXYsXaaMwkOlODsWa"); CkStringBuilder_Append(sbRsaJwk,"7I9xXDoRwbKgB719rrmI2oKr6N3Do9U0ajaHF-NKJnwgjMd2w9cjz3_-ky"); CkStringBuilder_Append(sbRsaJwk,"NlxAr2v4IKhGNpmM5iIgOS1VZnOZ68m6_pbLBSp3nssTdlqvd0tIiTHU\","); CkStringBuilder_Append(sbRsaJwk,"\"qi\":\"IYd7DHOhrWvxkwPQsRM2tOgrjbcrfvtQJipd-DlcxyVuuM9sQLdgjVk2o"); CkStringBuilder_Append(sbRsaJwk,"y26F0EmpScGLq2MowX7fhd_QJQ3ydy5cY7YIBi87w93IKLEdfnbJtoOPLU"); CkStringBuilder_Append(sbRsaJwk,"W0ITrJReOgo1cq9SbsxYawBgfp_gh6A5603k2-ZQwVK0JKSHuLFkuQ3U\""); CkStringBuilder_Append(sbRsaJwk,"}"); rsaKey = CkPrivateKey_Create(); // 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 = CkPrivateKey_LoadJwk(rsaKey,CkStringBuilder_getAsString(sbRsaJwk)); if (success != TRUE) { printf("%s\n",CkPrivateKey_lastErrorText(rsaKey)); CkStringBuilder_Dispose(sbRsaJwk); CkPrivateKey_Dispose(rsaKey); return; } // --------------------------------------------------- // Use the following ECC key loaded from JWK format. sbEccJwk = CkStringBuilder_Create(); CkStringBuilder_Append(sbEccJwk,"{\"kty\":\"EC\","); CkStringBuilder_Append(sbEccJwk,"\"crv\":\"P-256\","); CkStringBuilder_Append(sbEccJwk,"\"x\":\"f83OJ3D2xF1Bg8vub9tLe1gHMzV76e8Tus9uPHvRVEU\","); CkStringBuilder_Append(sbEccJwk,"\"y\":\"x_FEzRu9m36HLN_tue659LNpXW6pCyStikYjKIWI5a0\","); CkStringBuilder_Append(sbEccJwk,"\"d\":\"jpsQnnGQmL-YBIffH1136cspYG6-0iY7X1fCE9-E9LI\""); CkStringBuilder_Append(sbEccJwk,"}"); eccKey = CkPrivateKey_Create(); // 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 = CkPrivateKey_LoadJwk(eccKey,CkStringBuilder_getAsString(sbEccJwk)); if (success != TRUE) { printf("%s\n",CkPrivateKey_lastErrorText(eccKey)); CkStringBuilder_Dispose(sbRsaJwk); CkPrivateKey_Dispose(rsaKey); CkStringBuilder_Dispose(sbEccJwk); CkPrivateKey_Dispose(eccKey); return; } // --------------------------------------------------- // The HMAC key (in base64url format) hmacKey = "AyM1SysPpbyDfgZld3umj1qzKObwVMkoqQ-EstJQLr_T-1qS0gZH75aKtMN3Yj0iPS4hcgUuTwjAzZr1Z9CAow"; // --------------------------------------------------- // Prepare the headers.. // RSASSA-PKCS1-v1_5 SHA-256 jwsProtHdr0 = CkJsonObject_Create(); CkJsonObject_AppendString(jwsProtHdr0,"alg","RS256"); jwsUnprotHdr0 = CkJsonObject_Create(); CkJsonObject_AppendString(jwsUnprotHdr0,"kid","myRsaKey"); // ECDSA using P-256 and SHA-256 jwsProtHdr1 = CkJsonObject_Create(); CkJsonObject_AppendString(jwsProtHdr1,"alg","ES256"); jwsUnprotHdr1 = CkJsonObject_Create(); CkJsonObject_AppendString(jwsUnprotHdr1,"kid","myEcKey"); // HMAC using SHA-256 jwsProtHdr2 = CkJsonObject_Create(); CkJsonObject_AppendString(jwsProtHdr2,"alg","HS256"); jwsUnprotHdr2 = CkJsonObject_Create(); CkJsonObject_AppendString(jwsUnprotHdr2,"kid","myMacKey"); // --------------------------------------------------- // First set the JWS headers, keys, and payload, then we'll create the JWS... jws = CkJws_Create(); CkJws_SetProtectedHeader(jws,0,jwsProtHdr0); CkJws_SetUnprotectedHeader(jws,0,jwsUnprotHdr0); CkJws_SetProtectedHeader(jws,1,jwsProtHdr1); CkJws_SetUnprotectedHeader(jws,1,jwsUnprotHdr1); CkJws_SetProtectedHeader(jws,2,jwsProtHdr2); CkJws_SetUnprotectedHeader(jws,2,jwsUnprotHdr2); CkJws_SetPrivateKey(jws,0,rsaKey); CkJws_SetPrivateKey(jws,1,eccKey); CkJws_SetMacKey(jws,2,hmacKey,"base64url"); bIncludeBom = FALSE; payloadStr = "In our village, folks say God crumbles up the old moon into stars."; CkJws_SetPayload(jws,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 = CkJws_createJws(jws); if (CkJws_getLastMethodSuccess(jws) != TRUE) { printf("%s\n",CkJws_lastErrorText(jws)); CkStringBuilder_Dispose(sbRsaJwk); CkPrivateKey_Dispose(rsaKey); CkStringBuilder_Dispose(sbEccJwk); CkPrivateKey_Dispose(eccKey); CkJsonObject_Dispose(jwsProtHdr0); CkJsonObject_Dispose(jwsUnprotHdr0); CkJsonObject_Dispose(jwsProtHdr1); CkJsonObject_Dispose(jwsUnprotHdr1); CkJsonObject_Dispose(jwsProtHdr2); CkJsonObject_Dispose(jwsUnprotHdr2); CkJws_Dispose(jws); 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 = CkJsonObject_Create(); CkJsonObject_Load(json,jwsStr); CkJsonObject_putEmitCompact(json,FALSE); printf("%s\n",CkJsonObject_emit(json)); // 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" // } // ] // } CkStringBuilder_Dispose(sbRsaJwk); CkPrivateKey_Dispose(rsaKey); CkStringBuilder_Dispose(sbEccJwk); CkPrivateKey_Dispose(eccKey); CkJsonObject_Dispose(jwsProtHdr0); CkJsonObject_Dispose(jwsUnprotHdr0); CkJsonObject_Dispose(jwsProtHdr1); CkJsonObject_Dispose(jwsUnprotHdr1); CkJsonObject_Dispose(jwsProtHdr2); CkJsonObject_Dispose(jwsUnprotHdr2); CkJws_Dispose(jws); CkJsonObject_Dispose(json); } |
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