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(Unicode C) Load RSA Public Key from Hex Modulus and ExponentLoad an RSA public key from a hex modulus and exponent.
#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; // 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); } |
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