All Downloads are FREE. Search and download functionalities are using the official Maven repository.

org.bouncycastle.asn1.x509.X509NameEntryConverter Maven / Gradle / Ivy

Go to download

The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.4. Note: this package includes the NTRU encryption algorithms.

There is a newer version: 1.74
Show newest version
package org.bouncycastle.asn1.x509;

import java.io.IOException;

import org.bouncycastle.asn1.ASN1ObjectIdentifier;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1PrintableString;
import org.bouncycastle.util.encoders.Hex;

/**
 * It turns out that the number of standard ways the fields in a DN should be 
 * encoded into their ASN.1 counterparts is rapidly approaching the
 * number of machines on the internet. By default the X509Name class 
 * will produce UTF8Strings in line with the current recommendations (RFC 3280).
 * 

* An example of an encoder look like below: * * public class X509DirEntryConverter * extends X509NameEntryConverter * { * public ASN1Primitive getConvertedValue( * ASN1ObjectIdentifier oid, * String value) * { * if (str.length() != 0 && str.charAt(0) == '#') * { * return convertHexEncoded(str, 1); * } * if (oid.equals(EmailAddress)) * { * return new DERIA5String(str); * } * else if (canBePrintable(str)) * { * return new DERPrintableString(str); * } * else if (canBeUTF8(str)) * { * return new DERUTF8String(str); * } * else * { * return new DERBMPString(str); * } * } * } *

*/ public abstract class X509NameEntryConverter { /** * Convert an inline encoded hex string rendition of an ASN.1 * object back into its corresponding ASN.1 object. * * @param str the hex encoded object * @param off the index at which the encoding starts * @return the decoded object */ protected ASN1Primitive convertHexEncoded( String str, int off) throws IOException { return ASN1Primitive.fromByteArray(Hex.decodeStrict(str, off, str.length() - off)); } /** * return true if the passed in String can be represented without * loss as a PrintableString, false otherwise. */ protected boolean canBePrintable( String str) { return ASN1PrintableString.isPrintableString(str); } /** * Convert the passed in String value into the appropriate ASN.1 * encoded object. * * @param oid the oid associated with the value in the DN. * @param value the value of the particular DN component. * @return the ASN.1 equivalent for the value. */ public abstract ASN1Primitive getConvertedValue(ASN1ObjectIdentifier oid, String value); }



© 2015 - 2024 Weber Informatics LLC | Privacy Policy