Unicode C

Load RSA Public Key from Hex Modulus and Exponent

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Load an RSA public key from a hex modulus and exponent. Unicode C

#include <C_CkBinDataW.h>
#include <C_CkXmlW.h>
#include <C_CkPublicKeyW.h>

void ChilkatSample(void)
    {
    BOOL success;
    const wchar_t *modulus;
    const wchar_t *exponent;
    HCkBinDataW bdModulus;
    HCkBinDataW bdExponent;
    HCkXmlW xml;
    HCkPublicKeyW pubkey;

    success = FALSE;

    // Load a 128-byte (1024-bit) modulus + exponent into a Chilkat public key object..
    modulus = L"BF5F4AF9A018B5F324A0C10448C0D3248D9BE78967FDC551A27876AC5789ADCBA8245D3D942AE3799563D895DA801E765D225A54FA15DAB2C4731DD817DCF94A9AD62197074C2349442093A206234BF3747F0E88AA6F538355684CC1FB26FCE029C9050A1DAF9F507C2BABF6EFC9FB16320C8036721BE0279FBB76122C41E429";

    exponent = L"00000003";

    // We'll need to re-encode from hex to base64..
    bdModulus = CkBinDataW_Create();
    CkBinDataW_AppendEncoded(bdModulus,modulus,L"hex");
    bdExponent = CkBinDataW_Create();
    CkBinDataW_AppendEncoded(bdExponent,exponent,L"hex");

    xml = CkXmlW_Create();
    CkXmlW_putTag(xml,L"RsaKeyValue");
    CkXmlW_NewChild2(xml,L"Modulus",CkBinDataW_getEncoded(bdModulus,L"base64"));
    CkXmlW_NewChild2(xml,L"Exponent",CkBinDataW_getEncoded(bdExponent,L"base64"));

    // Now load into the pubkey object..
    pubkey = CkPublicKeyW_Create();
    success = CkPublicKeyW_LoadFromString(pubkey,CkXmlW_getXml(xml));
    if (success == FALSE) {
        wprintf(L"%s\n",CkPublicKeyW_lastErrorText(pubkey));
        CkBinDataW_Dispose(bdModulus);
        CkBinDataW_Dispose(bdExponent);
        CkXmlW_Dispose(xml);
        CkPublicKeyW_Dispose(pubkey);
        return;
    }

    wprintf(L"Success.\n");


    CkBinDataW_Dispose(bdModulus);
    CkBinDataW_Dispose(bdExponent);
    CkXmlW_Dispose(xml);
    CkPublicKeyW_Dispose(pubkey);

    }