com.helger.as2lib.crypto

Class BCCryptoHelper

java.lang.Object

com.helger.as2lib.crypto.BCCryptoHelper

All Implemented Interfaces:

ICryptoHelper

public final class BCCryptoHelper
extends Object
implements ICryptoHelper

Implementation of ICryptoHelper based on BouncyCastle.

Author:

Philip Helger

Constructor Summary

Constructors

Constructor and Description
BCCryptoHelper()

Method Summary

Modifier and Type	Method and Description
String	calculateMIC(javax.mail.internet.MimeBodyPart aPart, ECryptoAlgorithmSign eDigestAlgorithm, boolean bIncludeHeaders) Calculate the MIC
KeyStore	createNewKeyStore(com.helger.security.keystore.IKeyStoreType aKeyStoreType)
javax.mail.internet.MimeBodyPart	decrypt(javax.mail.internet.MimeBodyPart aPart, X509Certificate aX509Cert, PrivateKey aPrivateKey, boolean bForceDecrypt)
javax.mail.internet.MimeBodyPart	decrypt(javax.mail.internet.MimeBodyPart aPart, X509Certificate aX509Cert, PrivateKey aPrivateKey, boolean bForceDecrypt, boolean bLargeFileOn)
javax.mail.internet.MimeBodyPart	encrypt(javax.mail.internet.MimeBodyPart aPart, X509Certificate aX509Cert, ECryptoAlgorithmCrypt eAlgorithm, com.helger.mail.cte.EContentTransferEncoding eCTE)
String	getSecurityProviderName()
boolean	isCompressed(String sContentType) Check if the passed content type indicates compression.
boolean	isEncrypted(javax.mail.internet.MimeBodyPart aPart) Check if the passed MIME body part is encrypted.
boolean	isSigned(javax.mail.internet.MimeBodyPart aPart) Check if the passed MIME body part is signed.
KeyStore	loadKeyStore(com.helger.security.keystore.IKeyStoreType aKeyStoreType, InputStream aIS, char[] aPassword) Load a key store from the specified input stream.
BCCryptoHelper	setSecurityProviderName(String sSecurityProviderName) Set the security provider name to use.
javax.mail.internet.MimeBodyPart	sign(javax.mail.internet.MimeBodyPart aPart, X509Certificate aX509Cert, PrivateKey aPrivateKey, ECryptoAlgorithmSign eAlgorithm, boolean bIncludeCertificateInSignedContent, boolean bUseOldRFC3851MicAlgs, com.helger.mail.cte.EContentTransferEncoding eCTE) Sign a MIME body part.
javax.mail.internet.MimeBodyPart	verify(javax.mail.internet.MimeBodyPart aPart, X509Certificate aX509Cert, boolean bUseCertificateInBodyPart, boolean bForceVerify) Verify the specified Mime Body part against the part certificate

Methods inherited from class java.lang.Object

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

Constructor Detail

BCCryptoHelper

public BCCryptoHelper()

Method Detail

getSecurityProviderName

@Nonnull
 @Nonempty
public String getSecurityProviderName()

Returns:

The security provider name to use. BC by default.

Since:

4.2.0

setSecurityProviderName

@Nonnull
public BCCryptoHelper setSecurityProviderName(@Nonnull @Nonempty
                                                        String sSecurityProviderName)

Set the security provider name to use.

Parameters:

sSecurityProviderName - The provider name. May neither be null nor empty.

Returns:

this for chaining

Since:

4.2.0

createNewKeyStore

@Nonnull
public KeyStore createNewKeyStore(@Nonnull
                                            com.helger.security.keystore.IKeyStoreType aKeyStoreType)
                                     throws KeyStoreException,
                                            NoSuchProviderException

Specified by:

createNewKeyStore in interface ICryptoHelper

Parameters:

aKeyStoreType - Key store type to use. May not be null.

Returns:

A new key store.

Throws:

KeyStoreException

NoSuchProviderException

loadKeyStore

@Nonnull
public KeyStore loadKeyStore(@Nonnull
                                       com.helger.security.keystore.IKeyStoreType aKeyStoreType,
                                       @Nullable @WillNotClose
                                       InputStream aIS,
                                       @Nonnull
                                       char[] aPassword)
                                throws Exception

Description copied from interface: ICryptoHelper

Load a key store from the specified input stream.

Specified by:

loadKeyStore in interface ICryptoHelper

Parameters:

aKeyStoreType - Key store type to use. May not be null.

aIS - The input stream to load the key store from. May not be null.

aPassword - The password to be used for loading. May not be null.

Returns:

The loaded key store and never null.

Throws:

Exception - In case loading fails.

isEncrypted

public boolean isEncrypted(@Nonnull
                           javax.mail.internet.MimeBodyPart aPart)
                    throws javax.mail.MessagingException

Description copied from interface: ICryptoHelper

Check if the passed MIME body part is encrypted. The default implementation checks if the base type of the content type is "application/pkcs7-mime" and if the parameter "smime-type" has the value "enveloped-data".

Specified by:

isEncrypted in interface ICryptoHelper

Parameters:

aPart - The part to be checked.

Returns:

true if it is encrypted, false otherwise.

Throws:

javax.mail.MessagingException

isSigned

public boolean isSigned(@Nonnull
                        javax.mail.internet.MimeBodyPart aPart)
                 throws javax.mail.MessagingException

Description copied from interface: ICryptoHelper

Check if the passed MIME body part is signed. The default implementation checks if the base type of the content type is "multipart/signed".

Specified by:

isSigned in interface ICryptoHelper

Parameters:

aPart - The part to be checked.

Returns:

true if it is signed, false otherwise.

Throws:

javax.mail.MessagingException

isCompressed

public boolean isCompressed(@Nonnull
                            String sContentType)
                     throws OpenAS2Exception

Description copied from interface: ICryptoHelper

Check if the passed content type indicates compression. The default implementation checks if the parameter "smime-type" has the value "compressed-data".

Specified by:

isCompressed in interface ICryptoHelper

Parameters:

sContentType - The content type to be checked. May not be null.

Returns:

true if it is compressed, false otherwise.

Throws:

OpenAS2Exception - In case something goes wrong.

calculateMIC

@Nonnull
public String calculateMIC(@Nonnull
                                     javax.mail.internet.MimeBodyPart aPart,
                                     @Nonnull
                                     ECryptoAlgorithmSign eDigestAlgorithm,
                                     boolean bIncludeHeaders)
                              throws GeneralSecurityException,
                                     javax.mail.MessagingException,
                                     IOException

Description copied from interface: ICryptoHelper

Calculate the MIC

Specified by:

calculateMIC in interface ICryptoHelper

Parameters:

aPart - MIME part to calculate the MIC from. May not be null.

eDigestAlgorithm - The digest algorithm to be used. May not be null.

bIncludeHeaders - true if the MIME headers should be included, false if only the content should be used.

Returns:

The calculated MIC and never null. This is the Base64-encoded message digest of the specified algorithm. The exact layout must be <Base64EncodedMIC>, <MICAlgorithmID>

Throws:

GeneralSecurityException

javax.mail.MessagingException

IOException

decrypt

@Nonnull
public javax.mail.internet.MimeBodyPart decrypt(@Nonnull
                                                          javax.mail.internet.MimeBodyPart aPart,
                                                          @Nonnull
                                                          X509Certificate aX509Cert,
                                                          @Nonnull
                                                          PrivateKey aPrivateKey,
                                                          boolean bForceDecrypt)
                                                   throws GeneralSecurityException,
                                                          javax.mail.MessagingException,
                                                          org.bouncycastle.cms.CMSException,
                                                          org.bouncycastle.mail.smime.SMIMEException,
                                                          IOException

Specified by:

decrypt in interface ICryptoHelper

Throws:

GeneralSecurityException

javax.mail.MessagingException

org.bouncycastle.cms.CMSException

org.bouncycastle.mail.smime.SMIMEException

IOException

decrypt

@Nonnull
public javax.mail.internet.MimeBodyPart decrypt(@Nonnull
                                                          javax.mail.internet.MimeBodyPart aPart,
                                                          @Nonnull
                                                          X509Certificate aX509Cert,
                                                          @Nonnull
                                                          PrivateKey aPrivateKey,
                                                          boolean bForceDecrypt,
                                                          boolean bLargeFileOn)
                                                   throws GeneralSecurityException,
                                                          javax.mail.MessagingException,
                                                          org.bouncycastle.cms.CMSException,
                                                          org.bouncycastle.mail.smime.SMIMEException,
                                                          IOException

Specified by:

decrypt in interface ICryptoHelper

Throws:

GeneralSecurityException

javax.mail.MessagingException

org.bouncycastle.cms.CMSException

org.bouncycastle.mail.smime.SMIMEException

IOException

encrypt

@Nonnull
public javax.mail.internet.MimeBodyPart encrypt(@Nonnull
                                                          javax.mail.internet.MimeBodyPart aPart,
                                                          @Nonnull
                                                          X509Certificate aX509Cert,
                                                          @Nonnull
                                                          ECryptoAlgorithmCrypt eAlgorithm,
                                                          @Nonnull
                                                          com.helger.mail.cte.EContentTransferEncoding eCTE)
                                                   throws GeneralSecurityException,
                                                          org.bouncycastle.mail.smime.SMIMEException,
                                                          org.bouncycastle.cms.CMSException

Specified by:

encrypt in interface ICryptoHelper

Throws:

GeneralSecurityException

org.bouncycastle.mail.smime.SMIMEException

org.bouncycastle.cms.CMSException

sign

@Nonnull
public javax.mail.internet.MimeBodyPart sign(@Nonnull
                                                       javax.mail.internet.MimeBodyPart aPart,
                                                       @Nonnull
                                                       X509Certificate aX509Cert,
                                                       @Nonnull
                                                       PrivateKey aPrivateKey,
                                                       @Nonnull
                                                       ECryptoAlgorithmSign eAlgorithm,
                                                       boolean bIncludeCertificateInSignedContent,
                                                       boolean bUseOldRFC3851MicAlgs,
                                                       @Nonnull
                                                       com.helger.mail.cte.EContentTransferEncoding eCTE)
                                                throws GeneralSecurityException,
                                                       org.bouncycastle.mail.smime.SMIMEException,
                                                       javax.mail.MessagingException,
                                                       org.bouncycastle.operator.OperatorCreationException

Description copied from interface: ICryptoHelper

Sign a MIME body part.

Specified by:

sign in interface ICryptoHelper

Parameters:

aPart - MIME body part to be signed. May not be null.

aX509Cert - The certificate that should be added to the signed information. May not be null.

aPrivateKey - Private key to be used for signing. May not be null.

eAlgorithm - The algorithm to be used for signing. May not be null.

bIncludeCertificateInSignedContent - true if the passed certificate should be part of the signed content, false if the certificate should not be put in the content. E.g. for PEPPOL this must be true.

bUseOldRFC3851MicAlgs - true to use the old RFC 3851 MIC algorithm names (e.g. sha1), false to use the new RFC 5751 MIC algorithm names (e.g. sha-1).

eCTE - The Content-Transfer-Encoding to be used. May not be null.

Returns:

The signed MIME body part. Never null.

Throws:

GeneralSecurityException

org.bouncycastle.mail.smime.SMIMEException

javax.mail.MessagingException

org.bouncycastle.operator.OperatorCreationException

verify

@Nonnull
public javax.mail.internet.MimeBodyPart verify(@Nonnull
                                                         javax.mail.internet.MimeBodyPart aPart,
                                                         @Nullable
                                                         X509Certificate aX509Cert,
                                                         boolean bUseCertificateInBodyPart,
                                                         boolean bForceVerify)
                                                  throws GeneralSecurityException,
                                                         IOException,
                                                         javax.mail.MessagingException,
                                                         org.bouncycastle.cms.CMSException,
                                                         org.bouncycastle.operator.OperatorCreationException

Description copied from interface: ICryptoHelper

Verify the specified Mime Body part against the part certificate

Specified by:

verify in interface ICryptoHelper

Parameters:

aPart - Original part

aX509Cert - Certificate to check against or null if the certificate provided in the message should be used.

bUseCertificateInBodyPart - If true any certificate that is passed in the body part is used for verification. If false only the provided certificate is used.

bForceVerify - true to force verification even if the Content-Type header does not indicate so.

Returns:

The signed content. Never null.

Throws:

GeneralSecurityException

IOException

javax.mail.MessagingException

org.bouncycastle.cms.CMSException

org.bouncycastle.operator.OperatorCreationException