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(C) Example: Crypt2.ClearEncryptCerts methodDemonstrates how to call the ClearEncryptCerts method.
#include <C_CkCrypt2.h> #include <C_CkCert.h> #include <C_CkBinData.h> void ChilkatSample(void) { HCkCrypt2 crypt; HCkCert cert1; HCkCert cert2; HCkCert cert3; HCkBinData bd; BOOL success; HCkCert cert4; HCkCert cert5; crypt = CkCrypt2_Create(); // Tell the crypt object to use 3 certificates. // Do this by calling AddEncryptCert for each certificate. cert1 = CkCert_Create(); // ... // Load the cert from a source such as a .pfx/.p12 file, smart card, USB token, Apple keychain, Windows certificate store, etc. // ... CkCrypt2_AddEncryptCert(crypt,cert1); cert2 = CkCert_Create(); // ... CkCrypt2_AddEncryptCert(crypt,cert2); cert3 = CkCert_Create(); // ... CkCrypt2_AddEncryptCert(crypt,cert3); // Params for public-key encryption to create PKCS7 enveloped-data CkCrypt2_putCryptAlgorithm(crypt,"pki"); CkCrypt2_putPkcs7CryptAlg(crypt,"aes"); CkCrypt2_putKeyLength(crypt,256); CkCrypt2_putOaepHash(crypt,"sha256"); CkCrypt2_putOaepPadding(crypt,TRUE); bd = CkBinData_Create(); // ... success = CkCrypt2_EncryptBd(crypt,bd); // Let's say we now want to encrypt something else with different certs.. // First clear the encryption certs. CkCrypt2_ClearEncryptCerts(crypt); cert4 = CkCert_Create(); // ... CkCrypt2_AddEncryptCert(crypt,cert4); cert5 = CkCert_Create(); // ... CkCrypt2_AddEncryptCert(crypt,cert5); // ... // ... // Encrypt using cert4 and cert5. success = CkCrypt2_EncryptBd(crypt,bd); CkCrypt2_Dispose(crypt); CkCert_Dispose(cert1); CkCert_Dispose(cert2); CkCert_Dispose(cert3); CkBinData_Dispose(bd); CkCert_Dispose(cert4); CkCert_Dispose(cert5); } |
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