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(Java) Apple Keychain - Create RSA SignatureSee more Apple Keychain ExamplesUsing an RSA private key stored in the Apple Keychain, create a signature by signing the SHA-256 hash of the provided string, then return the signature encoded in Base64 format.Note: This example requires Chilkat v10.0.0 or greater.
import com.chilkatsoft.*; public class ChilkatExample { static { try { System.loadLibrary("chilkat"); } catch (UnsatisfiedLinkError e) { System.err.println("Native code library failed to load.\n" + e); System.exit(1); } } public static void main(String argv[]) { // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. CkCert cert = new CkCert(); // On MacOS and iOS, the LoadByCommonName function will search the Apple Keychain for the matching certificate. // A digital certificate's Common Name (CN) is a field in the certificate that specifies the name of the entity the // certificate is issued to. It is often used to identify the domain name, hostname, or organization the certificate represents. // For example: // - In an SSL/TLS certificate for a website, the CN typically contains the domain name (e.g., "www.example.com"). // - For certificates representing individuals or organizations, the CN might include the person's name or the organization's name. // The CN is part of the certificate's Subject field and is crucial for verifying that the certificate corresponds // to the intended entity, especially in SSL/TLS communications. boolean success = cert.LoadByCommonName("Example, Inc."); if (success == false) { System.out.println(cert.lastErrorText()); return; } CkRsa rsa = new CkRsa(); success = rsa.SetX509Cert(cert,true); if (success == false) { System.out.println(rsa.lastErrorText()); return; } // Generate an RSA signature by signing the SHA-256 hash of the provided string, // then return the signature encoded in Base64 format. rsa.put_EncodingMode("base64"); String sigBase64 = rsa.signStringENC("to be signed","sha256"); if (rsa.get_LastMethodSuccess() == false) { System.out.println(rsa.lastErrorText()); return; } System.out.println("RSA Signature:"); System.out.println(sigBase64); } } |
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