com.absio.crypto.certificate

Class CertificateHelper

java.lang.Object

com.absio.crypto.certificate.CertificateHelper

public class CertificateHelper
extends Object

Helper class for creating, encoding and decoding X.509 certificates.

Constructor Summary

Constructors

Constructor and Description
CertificateHelper()

Method Summary

Modifier and Type	Method and Description
X509Certificate	fromBytes(byte[] certificateBytes) This will decode an X.509 Certificate object from its bytes.
X509Certificate	fromPem(String pemString) This will decode a X.509 Certificate from a PEM string.
X509Certificate	generate(CertificateSubject subject, CertificateIssuer issuer, int daysValid) Generate a new certificate with teh given subject, issuer and lifespan.
X509Certificate	generate(PublicKey subjectKey, String subjectName, String subjectOrganization, String subjectCountry, PrivateKey issuerKey, String issuerName, String issuerOrganization, String issuerCountry, int daysValid) Generate a new certificate with teh given subject data, issuer data and lifespan.
String	toPem(X509Certificate certificate) This will convert the X.509 Certificate into a PEM string.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CertificateHelper

public CertificateHelper()

Method Detail

generate

public X509Certificate generate(CertificateSubject subject,
                                CertificateIssuer issuer,
                                int daysValid)

Generate a new certificate with teh given subject, issuer and lifespan.

Parameters:

subject - the subject of the certificate

issuer - the issuer of the certificate

daysValid - the number of days the certificate will be valid

Returns:

the new X.509 certificate instance

generate

public X509Certificate generate(PublicKey subjectKey,
                                String subjectName,
                                String subjectOrganization,
                                String subjectCountry,
                                PrivateKey issuerKey,
                                String issuerName,
                                String issuerOrganization,
                                String issuerCountry,
                                int daysValid)

Generate a new certificate with teh given subject data, issuer data and lifespan.

Parameters:

subjectKey - the subject key of the certificate

subjectName - the subject name of the certificate

subjectOrganization - the subject organization of the certificate

subjectCountry - the subject country of the certificate

issuerKey - the issuer key of the certificate

issuerName - the issuer name of the certificate

issuerOrganization - the issuer organization of the certificate

issuerCountry - the issuer country of the certificate

daysValid - the number of days the certificate will be valid

Returns:

the new X.509 certificate instance

toPem

public String toPem(X509Certificate certificate)
             throws IOException,
                    CertificateEncodingException

This will convert the X.509 Certificate into a PEM string.

Parameters:

certificate - the certificate to convert

Returns:

the PEM representation of the X.509 Certificate

Throws:

IOException - thrown if there are issues converting the certificate

CertificateEncodingException - thrown if there are issues converting the certificate

fromPem

public X509Certificate fromPem(String pemString)
                        throws IOException,
                               CertificateException

This will decode a X.509 Certificate from a PEM string.

Parameters:

pemString - the PEM representation of the X.509 Certificate

Returns:

the X.509 Certificate

Throws:

IOException - thrown if there are issues converting the certificate

CertificateEncodingException - thrown if there are issues converting the certificate

CertificateException

fromBytes

public X509Certificate fromBytes(byte[] certificateBytes)
                          throws CertificateException

This will decode an X.509 Certificate object from its bytes.

Parameters:

certificateBytes - the X.509 Certificate bytes

Returns:

the X.509 Certificate

Throws:

CertificateEncodingException - thrown if there are issues converting the certificate

CertificateException