Importing a Certificate from a File
See also Exporting a Certificate to a File.
A certificate can be imported into a keystore using keytool:
// This method reads a certificate to a file. The certificate can be either
// binary or base64 encoded.
public static java.security.cert.Certificate importCertificate(File file) {
try {
FileInputStream is = new FileInputStream(file);
CertificateFactory cf = CertificateFactory.getInstance("X.509");
java.security.cert.Certificate cert = cf.generateCertificate(is);
return cert;
} catch (CertificateException e) {
} catch (IOException e) {
}
return null;
}
> keytool -storepass my-keystore-password -alias myalias -import -file infilename.cer
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