Sample code for 30+ languages & platforms
Unicode C

Set the JWS Payload

See more JSON Web Signatures (JWS) Examples

Demonstrates Jws.SetPayload, which sets the content to be signed. The charset converts the text to bytes, and a flag controls whether a byte-order mark is included.

Background. JWS (JSON Web Signature) integrity-protects a payload with a signature or MAC. The header alg names the algorithm; this example uses HMAC-SHA256 (HS256) with a symmetric MAC key.

Chilkat Unicode C Downloads

Unicode C
#include <C_CkJwsW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkJwsW jws;
    BOOL bIncludeBom;

    success = FALSE;

    jws = CkJwsW_Create();

    //  Set the payload (the content to be signed).  The 2nd argument is the charset used to convert the
    //  text to bytes, and the 3rd controls whether a byte-order mark is included.
    bIncludeBom = FALSE;
    success = CkJwsW_SetPayload(jws,L"This is the content to sign.",L"utf-8",bIncludeBom);
    if (success == FALSE) {
        wprintf(L"%s\n",CkJwsW_lastErrorText(jws));
        CkJwsW_Dispose(jws);
        return;
    }

    wprintf(L"Payload set.\n");


    CkJwsW_Dispose(jws);

    }