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(Unicode C) Change Password for Java KeyStore FileDemonstrates how to load a Java keystore, change the password, and save using the new password. If the Java keystore contains only trusted root certificates, then it's simply a matter of loading the JKS with the existing password, and then saving with a new password. If the JKS contains private key entries, then each private key entry must be re-keyed using the new password by calling the ChangePassword method.
#include <C_CkJavaKeyStoreW.h> void ChilkatSample(void) { HCkJavaKeyStoreW jks; const wchar_t *oldJksPassword; const wchar_t *newJksPassword; const wchar_t *jksPath; BOOL success; int numPrivateKeys; int i; // This requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. jks = CkJavaKeyStoreW_Create(); oldJksPassword = L"existingPassword"; newJksPassword = L"newPassword"; jksPath = L"/someDir/keyStore.jks"; // Load the Java keystore from a file. success = CkJavaKeyStoreW_LoadFile(jks,oldJksPassword,jksPath); if (success != TRUE) { wprintf(L"%s\n",CkJavaKeyStoreW_lastErrorText(jks)); CkJavaKeyStoreW_Dispose(jks); return; } // If the JKS contains private key entries, then each // must be re-keyed with the new password by calling ChangePassword. numPrivateKeys = CkJavaKeyStoreW_getNumPrivateKeys(jks); i = 0; while (i < numPrivateKeys) { success = CkJavaKeyStoreW_ChangePassword(jks,i,oldJksPassword,newJksPassword); if (success != TRUE) { wprintf(L"%s\n",CkJavaKeyStoreW_lastErrorText(jks)); CkJavaKeyStoreW_Dispose(jks); return; } i = i + 1; } // Write the JKS using the new password for the JKS file's keyed digest. success = CkJavaKeyStoreW_ToFile(jks,newJksPassword,jksPath); if (success != TRUE) { wprintf(L"%s\n",CkJavaKeyStoreW_lastErrorText(jks)); CkJavaKeyStoreW_Dispose(jks); return; } wprintf(L"Updated the password for the Java keystore file.\n"); CkJavaKeyStoreW_Dispose(jks); } |
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