Java RDN类代码示例

import org.spongycastle.asn1.x500.RDN; //导入依赖的package包/类
public String getValueByObjectIdentifier(ASN1ObjectIdentifier identifier) {
    X500Name x500name = null;
    try {
        x500name = new JcaX509CertificateHolder(certificate).getSubject();
    } catch (CertificateEncodingException e) {
        Timber.e(e, "Error getting value by ASN1 Object identifier");
    }
    if (x500name == null) {
        return null;
    }
    RDN[] rdNs = x500name.getRDNs(identifier);
    if (rdNs.length == 0) {
        return null;
    }
    RDN c = rdNs[0];
    return IETFUtils.valueToString(c.getFirst().getValue());
}
 

import org.spongycastle.asn1.x500.RDN; //导入依赖的package包/类
private @Nullable String getNameFromCert(TrustAnchor rootAuthority) throws PaymentRequestException.PkiVerificationException {
    org.spongycastle.asn1.x500.X500Name name = new X500Name(rootAuthority.getTrustedCert().getSubjectX500Principal().getName());
    String commonName = null, org = null, location = null, country = null;
    for (RDN rdn : name.getRDNs()) {
        AttributeTypeAndValue pair = rdn.getFirst();
        String val = ((ASN1String)pair.getValue()).getString();
        if (pair.getType().equals(RFC4519Style.cn))
            commonName = val;
        else if (pair.getType().equals(RFC4519Style.o))
            org = val;
        else if (pair.getType().equals(RFC4519Style.l))
            location = val;
        else if (pair.getType().equals(RFC4519Style.c))
            country = val;
    }
    if (org != null) {
        return Joiner.on(", ").skipNulls().join(org, location, country);
    } else {
        return commonName;
    }
}
 

import org.spongycastle.asn1.x500.RDN; //导入依赖的package包/类
/**
 * Returns either a string that "sums up" the certificate for humans, in a similar manner to what you might see
 * in a web browser, or null if one cannot be extracted. This will typically be the common name (CN) field, but
 * can also be the org (O) field, org+location+country if withLocation is set, or the email
 * address for S/MIME certificates.
 */
@Nullable
public static String getDisplayNameFromCertificate(@Nonnull X509Certificate certificate, boolean withLocation) throws CertificateParsingException {
    X500Name name = new X500Name(certificate.getSubjectX500Principal().getName());
    String commonName = null, org = null, location = null, country = null;
    for (RDN rdn : name.getRDNs()) {
        AttributeTypeAndValue pair = rdn.getFirst();
        String val = ((ASN1String) pair.getValue()).getString();
        ASN1ObjectIdentifier type = pair.getType();
        if (type.equals(RFC4519Style.cn))
            commonName = val;
        else if (type.equals(RFC4519Style.o))
            org = val;
        else if (type.equals(RFC4519Style.l))
            location = val;
        else if (type.equals(RFC4519Style.c))
            country = val;
    }
    final Collection<List<?>> subjectAlternativeNames = certificate.getSubjectAlternativeNames();
    String altName = null;
    if (subjectAlternativeNames != null)
        for (final List<?> subjectAlternativeName : subjectAlternativeNames)
            if ((Integer) subjectAlternativeName.get(0) == 1) // rfc822name
                altName = (String) subjectAlternativeName.get(1);

    if (org != null) {
        return withLocation ? Joiner.on(", ").skipNulls().join(org, location, country) : org;
    } else if (commonName != null) {
        return commonName;
    } else {
        return altName;
    }
}
 

import org.spongycastle.asn1.x500.RDN; //导入依赖的package包/类
/**
 * Returns either a string that "sums up" the certificate for humans, in a similar manner to what you might see
 * in a web browser, or null if one cannot be extracted. This will typically be the common name (CN) field, but
 * can also be the org (O) field, org+location+country if withLocation is set, or the email
 * address for S/MIME certificates.
 */
public static @Nullable String getDisplayNameFromCertificate(@Nonnull X509Certificate certificate, boolean withLocation) throws CertificateParsingException {
    X500Name name = new X500Name(certificate.getSubjectX500Principal().getName());
    String commonName = null, org = null, location = null, country = null;
    for (RDN rdn : name.getRDNs()) {
        AttributeTypeAndValue pair = rdn.getFirst();
        String val = ((ASN1String) pair.getValue()).getString();
        ASN1ObjectIdentifier type = pair.getType();
        if (type.equals(RFC4519Style.cn))
            commonName = val;
        else if (type.equals(RFC4519Style.o))
            org = val;
        else if (type.equals(RFC4519Style.l))
            location = val;
        else if (type.equals(RFC4519Style.c))
            country = val;
    }
    final Collection<List<?>> subjectAlternativeNames = certificate.getSubjectAlternativeNames();
    String altName = null;
    if (subjectAlternativeNames != null)
        for (final List<?> subjectAlternativeName : subjectAlternativeNames)
            if ((Integer) subjectAlternativeName.get(0) == 1) // rfc822name
                altName = (String) subjectAlternativeName.get(1);

    if (org != null) {
        return withLocation ? Joiner.on(", ").skipNulls().join(org, location, country) : org;
    } else if (commonName != null) {
        return commonName;
    } else {
        return altName;
    }
}
 

import org.spongycastle.asn1.x500.RDN; //导入依赖的package包/类
private static String commonNameFromX500Name(X500Name name) {
    String commonName = "";
    RDN[] rdns = name.getRDNs(BCStyle.CN);
    if (rdns == null || rdns.length == 0)
        return commonName;
    commonName = IETFUtils.valueToString(rdns[0].getFirst().getValue());
    return commonName;
}
 

import org.spongycastle.asn1.x500.RDN; //导入依赖的package包/类
public String getTitle() {
    if (cert != null) {
        RDN[] subjectCNs = cert.getSubject().getRDNs(BCStyle.CN);

        if (subjectCNs.length > 0)
            return IETFUtils.valueToString(subjectCNs[0].getFirst().getValue());
        else
            return "?";
    } else {
        return "";
    }
}
 

import org.spongycastle.asn1.x500.RDN; //导入依赖的package包/类
/**
 * @param certificate certificate
 * @return common name
 * @throws IllegalArgumentException if certificate is incorrect type
 */
@NonNull
public static String getCommonName(Certificate certificate) {
    assertX509Certificate(certificate);
    String result = null;
    try {
        X500Name x500name = new JcaX509CertificateHolder((X509Certificate) certificate).getSubject();
        RDN cn = x500name.getRDNs(BCStyle.CN)[0];
        result = IETFUtils.valueToString(cn.getFirst().getValue());
    } catch (CertificateEncodingException ignored) {
    }

    return (result == null) ? "" : result;
}