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Diffstat (limited to 'pkix/src/main/java/org/bouncycastle/cms/bc')
-rw-r--r--pkix/src/main/java/org/bouncycastle/cms/bc/BcCMSContentEncryptorBuilder.java124
-rw-r--r--pkix/src/main/java/org/bouncycastle/cms/bc/BcKEKEnvelopedRecipient.java49
-rw-r--r--pkix/src/main/java/org/bouncycastle/cms/bc/BcKEKRecipient.java33
-rw-r--r--pkix/src/main/java/org/bouncycastle/cms/bc/BcKEKRecipientInfoGenerator.java19
-rw-r--r--pkix/src/main/java/org/bouncycastle/cms/bc/BcKeyTransRecipient.java36
-rw-r--r--pkix/src/main/java/org/bouncycastle/cms/bc/BcKeyTransRecipientInfoGenerator.java20
-rw-r--r--pkix/src/main/java/org/bouncycastle/cms/bc/BcPasswordEnvelopedRecipient.java49
-rw-r--r--pkix/src/main/java/org/bouncycastle/cms/bc/BcPasswordRecipient.java61
-rw-r--r--pkix/src/main/java/org/bouncycastle/cms/bc/BcPasswordRecipientInfoGenerator.java31
-rw-r--r--pkix/src/main/java/org/bouncycastle/cms/bc/BcRSAKeyTransEnvelopedRecipient.java50
-rw-r--r--pkix/src/main/java/org/bouncycastle/cms/bc/BcRSAKeyTransRecipientInfoGenerator.java23
-rw-r--r--pkix/src/main/java/org/bouncycastle/cms/bc/BcRSASignerInfoVerifierBuilder.java39
-rw-r--r--pkix/src/main/java/org/bouncycastle/cms/bc/CMSUtils.java23
-rw-r--r--pkix/src/main/java/org/bouncycastle/cms/bc/EnvelopedDataHelper.java378
14 files changed, 935 insertions, 0 deletions
diff --git a/pkix/src/main/java/org/bouncycastle/cms/bc/BcCMSContentEncryptorBuilder.java b/pkix/src/main/java/org/bouncycastle/cms/bc/BcCMSContentEncryptorBuilder.java
new file mode 100644
index 00000000..a12c66b3
--- /dev/null
+++ b/pkix/src/main/java/org/bouncycastle/cms/bc/BcCMSContentEncryptorBuilder.java
@@ -0,0 +1,124 @@
+package org.bouncycastle.cms.bc;
+
+import java.io.OutputStream;
+import java.security.SecureRandom;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.bouncycastle.asn1.ASN1ObjectIdentifier;
+import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
+import org.bouncycastle.cms.CMSAlgorithm;
+import org.bouncycastle.cms.CMSException;
+import org.bouncycastle.crypto.BufferedBlockCipher;
+import org.bouncycastle.crypto.CipherKeyGenerator;
+import org.bouncycastle.crypto.StreamCipher;
+import org.bouncycastle.crypto.io.CipherOutputStream;
+import org.bouncycastle.crypto.params.KeyParameter;
+import org.bouncycastle.operator.GenericKey;
+import org.bouncycastle.operator.OutputEncryptor;
+import org.bouncycastle.util.Integers;
+
+public class BcCMSContentEncryptorBuilder
+{
+ private static Map keySizes = new HashMap();
+
+ static
+ {
+ keySizes.put(CMSAlgorithm.AES128_CBC, Integers.valueOf(128));
+ keySizes.put(CMSAlgorithm.AES192_CBC, Integers.valueOf(192));
+ keySizes.put(CMSAlgorithm.AES256_CBC, Integers.valueOf(256));
+
+ keySizes.put(CMSAlgorithm.CAMELLIA128_CBC, Integers.valueOf(128));
+ keySizes.put(CMSAlgorithm.CAMELLIA192_CBC, Integers.valueOf(192));
+ keySizes.put(CMSAlgorithm.CAMELLIA256_CBC, Integers.valueOf(256));
+ }
+
+ private static int getKeySize(ASN1ObjectIdentifier oid)
+ {
+ Integer size = (Integer)keySizes.get(oid);
+
+ if (size != null)
+ {
+ return size.intValue();
+ }
+
+ return -1;
+ }
+
+ private final ASN1ObjectIdentifier encryptionOID;
+ private final int keySize;
+
+ private EnvelopedDataHelper helper = new EnvelopedDataHelper();
+ private SecureRandom random;
+
+ public BcCMSContentEncryptorBuilder(ASN1ObjectIdentifier encryptionOID)
+ {
+ this(encryptionOID, getKeySize(encryptionOID));
+ }
+
+ public BcCMSContentEncryptorBuilder(ASN1ObjectIdentifier encryptionOID, int keySize)
+ {
+ this.encryptionOID = encryptionOID;
+ this.keySize = keySize;
+ }
+
+ public BcCMSContentEncryptorBuilder setSecureRandom(SecureRandom random)
+ {
+ this.random = random;
+
+ return this;
+ }
+
+ public OutputEncryptor build()
+ throws CMSException
+ {
+ return new CMSOutputEncryptor(encryptionOID, keySize, random);
+ }
+
+ private class CMSOutputEncryptor
+ implements OutputEncryptor
+ {
+ private KeyParameter encKey;
+ private AlgorithmIdentifier algorithmIdentifier;
+ private Object cipher;
+
+ CMSOutputEncryptor(ASN1ObjectIdentifier encryptionOID, int keySize, SecureRandom random)
+ throws CMSException
+ {
+ if (random == null)
+ {
+ random = new SecureRandom();
+ }
+
+ CipherKeyGenerator keyGen = helper.createKeyGenerator(encryptionOID, random);
+
+ encKey = new KeyParameter(keyGen.generateKey());
+
+ algorithmIdentifier = helper.generateAlgorithmIdentifier(encryptionOID, encKey, random);
+
+ cipher = helper.createContentCipher(true, encKey, algorithmIdentifier);
+ }
+
+ public AlgorithmIdentifier getAlgorithmIdentifier()
+ {
+ return algorithmIdentifier;
+ }
+
+ public OutputStream getOutputStream(OutputStream dOut)
+ {
+ if (cipher instanceof BufferedBlockCipher)
+ {
+ return new CipherOutputStream(dOut, (BufferedBlockCipher)cipher);
+ }
+ else
+ {
+ return new CipherOutputStream(dOut, (StreamCipher)cipher);
+ }
+ }
+
+ public GenericKey getKey()
+ {
+ return new GenericKey(algorithmIdentifier, encKey.getKey());
+ }
+ }
+}
diff --git a/pkix/src/main/java/org/bouncycastle/cms/bc/BcKEKEnvelopedRecipient.java b/pkix/src/main/java/org/bouncycastle/cms/bc/BcKEKEnvelopedRecipient.java
new file mode 100644
index 00000000..5641d82b
--- /dev/null
+++ b/pkix/src/main/java/org/bouncycastle/cms/bc/BcKEKEnvelopedRecipient.java
@@ -0,0 +1,49 @@
+package org.bouncycastle.cms.bc;
+
+import java.io.InputStream;
+
+import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
+import org.bouncycastle.cms.CMSException;
+import org.bouncycastle.cms.RecipientOperator;
+import org.bouncycastle.crypto.BufferedBlockCipher;
+import org.bouncycastle.crypto.StreamCipher;
+import org.bouncycastle.crypto.params.KeyParameter;
+import org.bouncycastle.operator.InputDecryptor;
+import org.bouncycastle.operator.bc.BcSymmetricKeyUnwrapper;
+
+public class BcKEKEnvelopedRecipient
+ extends BcKEKRecipient
+{
+ public BcKEKEnvelopedRecipient(BcSymmetricKeyUnwrapper unwrapper)
+ {
+ super(unwrapper);
+ }
+
+ public RecipientOperator getRecipientOperator(AlgorithmIdentifier keyEncryptionAlgorithm, final AlgorithmIdentifier contentEncryptionAlgorithm, byte[] encryptedContentEncryptionKey)
+ throws CMSException
+ {
+ KeyParameter secretKey = (KeyParameter)extractSecretKey(keyEncryptionAlgorithm, contentEncryptionAlgorithm, encryptedContentEncryptionKey);
+
+ final Object dataCipher = EnvelopedDataHelper.createContentCipher(false, secretKey, contentEncryptionAlgorithm);
+
+ return new RecipientOperator(new InputDecryptor()
+ {
+ public AlgorithmIdentifier getAlgorithmIdentifier()
+ {
+ return contentEncryptionAlgorithm;
+ }
+
+ public InputStream getInputStream(InputStream dataOut)
+ {
+ if (dataCipher instanceof BufferedBlockCipher)
+ {
+ return new org.bouncycastle.crypto.io.CipherInputStream(dataOut, (BufferedBlockCipher)dataCipher);
+ }
+ else
+ {
+ return new org.bouncycastle.crypto.io.CipherInputStream(dataOut, (StreamCipher)dataCipher);
+ }
+ }
+ });
+ }
+}
diff --git a/pkix/src/main/java/org/bouncycastle/cms/bc/BcKEKRecipient.java b/pkix/src/main/java/org/bouncycastle/cms/bc/BcKEKRecipient.java
new file mode 100644
index 00000000..a7d5eb76
--- /dev/null
+++ b/pkix/src/main/java/org/bouncycastle/cms/bc/BcKEKRecipient.java
@@ -0,0 +1,33 @@
+package org.bouncycastle.cms.bc;
+
+import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
+import org.bouncycastle.cms.CMSException;
+import org.bouncycastle.cms.KEKRecipient;
+import org.bouncycastle.crypto.CipherParameters;
+import org.bouncycastle.operator.OperatorException;
+import org.bouncycastle.operator.SymmetricKeyUnwrapper;
+import org.bouncycastle.operator.bc.BcSymmetricKeyUnwrapper;
+
+public abstract class BcKEKRecipient
+ implements KEKRecipient
+{
+ private SymmetricKeyUnwrapper unwrapper;
+
+ public BcKEKRecipient(BcSymmetricKeyUnwrapper unwrapper)
+ {
+ this.unwrapper = unwrapper;
+ }
+
+ protected CipherParameters extractSecretKey(AlgorithmIdentifier keyEncryptionAlgorithm, AlgorithmIdentifier contentEncryptionAlgorithm, byte[] encryptedContentEncryptionKey)
+ throws CMSException
+ {
+ try
+ {
+ return CMSUtils.getBcKey(unwrapper.generateUnwrappedKey(contentEncryptionAlgorithm, encryptedContentEncryptionKey));
+ }
+ catch (OperatorException e)
+ {
+ throw new CMSException("exception unwrapping key: " + e.getMessage(), e);
+ }
+ }
+}
diff --git a/pkix/src/main/java/org/bouncycastle/cms/bc/BcKEKRecipientInfoGenerator.java b/pkix/src/main/java/org/bouncycastle/cms/bc/BcKEKRecipientInfoGenerator.java
new file mode 100644
index 00000000..309ad64b
--- /dev/null
+++ b/pkix/src/main/java/org/bouncycastle/cms/bc/BcKEKRecipientInfoGenerator.java
@@ -0,0 +1,19 @@
+package org.bouncycastle.cms.bc;
+
+import org.bouncycastle.asn1.cms.KEKIdentifier;
+import org.bouncycastle.cms.KEKRecipientInfoGenerator;
+import org.bouncycastle.operator.bc.BcSymmetricKeyWrapper;
+
+public class BcKEKRecipientInfoGenerator
+ extends KEKRecipientInfoGenerator
+{
+ public BcKEKRecipientInfoGenerator(KEKIdentifier kekIdentifier, BcSymmetricKeyWrapper kekWrapper)
+ {
+ super(kekIdentifier, kekWrapper);
+ }
+
+ public BcKEKRecipientInfoGenerator(byte[] keyIdentifier, BcSymmetricKeyWrapper kekWrapper)
+ {
+ this(new KEKIdentifier(keyIdentifier, null, null), kekWrapper);
+ }
+}
diff --git a/pkix/src/main/java/org/bouncycastle/cms/bc/BcKeyTransRecipient.java b/pkix/src/main/java/org/bouncycastle/cms/bc/BcKeyTransRecipient.java
new file mode 100644
index 00000000..8c698853
--- /dev/null
+++ b/pkix/src/main/java/org/bouncycastle/cms/bc/BcKeyTransRecipient.java
@@ -0,0 +1,36 @@
+package org.bouncycastle.cms.bc;
+
+import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
+import org.bouncycastle.cms.CMSException;
+import org.bouncycastle.cms.KeyTransRecipient;
+import org.bouncycastle.crypto.CipherParameters;
+import org.bouncycastle.crypto.params.AsymmetricKeyParameter;
+import org.bouncycastle.operator.AsymmetricKeyUnwrapper;
+import org.bouncycastle.operator.OperatorException;
+import org.bouncycastle.operator.bc.BcRSAAsymmetricKeyUnwrapper;
+
+public abstract class BcKeyTransRecipient
+ implements KeyTransRecipient
+{
+ private AsymmetricKeyParameter recipientKey;
+
+ public BcKeyTransRecipient(AsymmetricKeyParameter recipientKey)
+ {
+ this.recipientKey = recipientKey;
+ }
+
+ protected CipherParameters extractSecretKey(AlgorithmIdentifier keyEncryptionAlgorithm, AlgorithmIdentifier encryptedKeyAlgorithm, byte[] encryptedEncryptionKey)
+ throws CMSException
+ {
+ AsymmetricKeyUnwrapper unwrapper = new BcRSAAsymmetricKeyUnwrapper(keyEncryptionAlgorithm, recipientKey);
+
+ try
+ {
+ return CMSUtils.getBcKey(unwrapper.generateUnwrappedKey(encryptedKeyAlgorithm, encryptedEncryptionKey));
+ }
+ catch (OperatorException e)
+ {
+ throw new CMSException("exception unwrapping key: " + e.getMessage(), e);
+ }
+ }
+}
diff --git a/pkix/src/main/java/org/bouncycastle/cms/bc/BcKeyTransRecipientInfoGenerator.java b/pkix/src/main/java/org/bouncycastle/cms/bc/BcKeyTransRecipientInfoGenerator.java
new file mode 100644
index 00000000..eebbbda4
--- /dev/null
+++ b/pkix/src/main/java/org/bouncycastle/cms/bc/BcKeyTransRecipientInfoGenerator.java
@@ -0,0 +1,20 @@
+package org.bouncycastle.cms.bc;
+
+import org.bouncycastle.asn1.cms.IssuerAndSerialNumber;
+import org.bouncycastle.cert.X509CertificateHolder;
+import org.bouncycastle.cms.KeyTransRecipientInfoGenerator;
+import org.bouncycastle.operator.bc.BcAsymmetricKeyWrapper;
+
+public abstract class BcKeyTransRecipientInfoGenerator
+ extends KeyTransRecipientInfoGenerator
+{
+ public BcKeyTransRecipientInfoGenerator(X509CertificateHolder recipientCert, BcAsymmetricKeyWrapper wrapper)
+ {
+ super(new IssuerAndSerialNumber(recipientCert.toASN1Structure()), wrapper);
+ }
+
+ public BcKeyTransRecipientInfoGenerator(byte[] subjectKeyIdentifier, BcAsymmetricKeyWrapper wrapper)
+ {
+ super(subjectKeyIdentifier, wrapper);
+ }
+} \ No newline at end of file
diff --git a/pkix/src/main/java/org/bouncycastle/cms/bc/BcPasswordEnvelopedRecipient.java b/pkix/src/main/java/org/bouncycastle/cms/bc/BcPasswordEnvelopedRecipient.java
new file mode 100644
index 00000000..d3d38cf6
--- /dev/null
+++ b/pkix/src/main/java/org/bouncycastle/cms/bc/BcPasswordEnvelopedRecipient.java
@@ -0,0 +1,49 @@
+package org.bouncycastle.cms.bc;
+
+import java.io.InputStream;
+
+import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
+import org.bouncycastle.cms.CMSException;
+import org.bouncycastle.cms.RecipientOperator;
+import org.bouncycastle.crypto.BufferedBlockCipher;
+import org.bouncycastle.crypto.StreamCipher;
+import org.bouncycastle.crypto.io.CipherInputStream;
+import org.bouncycastle.crypto.params.KeyParameter;
+import org.bouncycastle.operator.InputDecryptor;
+
+public class BcPasswordEnvelopedRecipient
+ extends BcPasswordRecipient
+{
+ public BcPasswordEnvelopedRecipient(char[] password)
+ {
+ super(password);
+ }
+
+ public RecipientOperator getRecipientOperator(AlgorithmIdentifier keyEncryptionAlgorithm, final AlgorithmIdentifier contentEncryptionAlgorithm, byte[] derivedKey, byte[] encryptedContentEncryptionKey)
+ throws CMSException
+ {
+ KeyParameter secretKey = extractSecretKey(keyEncryptionAlgorithm, contentEncryptionAlgorithm, derivedKey, encryptedContentEncryptionKey);
+
+ final Object dataCipher = EnvelopedDataHelper.createContentCipher(false, secretKey, contentEncryptionAlgorithm);
+
+ return new RecipientOperator(new InputDecryptor()
+ {
+ public AlgorithmIdentifier getAlgorithmIdentifier()
+ {
+ return contentEncryptionAlgorithm;
+ }
+
+ public InputStream getInputStream(InputStream dataOut)
+ {
+ if (dataCipher instanceof BufferedBlockCipher)
+ {
+ return new CipherInputStream(dataOut, (BufferedBlockCipher)dataCipher);
+ }
+ else
+ {
+ return new CipherInputStream(dataOut, (StreamCipher)dataCipher);
+ }
+ }
+ });
+ }
+}
diff --git a/pkix/src/main/java/org/bouncycastle/cms/bc/BcPasswordRecipient.java b/pkix/src/main/java/org/bouncycastle/cms/bc/BcPasswordRecipient.java
new file mode 100644
index 00000000..778e1db7
--- /dev/null
+++ b/pkix/src/main/java/org/bouncycastle/cms/bc/BcPasswordRecipient.java
@@ -0,0 +1,61 @@
+package org.bouncycastle.cms.bc;
+
+import org.bouncycastle.asn1.ASN1OctetString;
+import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
+import org.bouncycastle.cms.CMSException;
+import org.bouncycastle.cms.PasswordRecipient;
+import org.bouncycastle.crypto.InvalidCipherTextException;
+import org.bouncycastle.crypto.Wrapper;
+import org.bouncycastle.crypto.params.KeyParameter;
+import org.bouncycastle.crypto.params.ParametersWithIV;
+
+/**
+ * the RecipientInfo class for a recipient who has been sent a message
+ * encrypted using a password.
+ */
+public abstract class BcPasswordRecipient
+ implements PasswordRecipient
+{
+ private int schemeID = PasswordRecipient.PKCS5_SCHEME2_UTF8;
+ private char[] password;
+
+ BcPasswordRecipient(
+ char[] password)
+ {
+ this.password = password;
+ }
+
+ public BcPasswordRecipient setPasswordConversionScheme(int schemeID)
+ {
+ this.schemeID = schemeID;
+
+ return this;
+ }
+
+ protected KeyParameter extractSecretKey(AlgorithmIdentifier keyEncryptionAlgorithm, AlgorithmIdentifier contentEncryptionAlgorithm, byte[] derivedKey, byte[] encryptedContentEncryptionKey)
+ throws CMSException
+ {
+ Wrapper keyEncryptionCipher = EnvelopedDataHelper.createRFC3211Wrapper(keyEncryptionAlgorithm.getAlgorithm());
+
+ keyEncryptionCipher.init(false, new ParametersWithIV(new KeyParameter(derivedKey), ASN1OctetString.getInstance(keyEncryptionAlgorithm.getParameters()).getOctets()));
+
+ try
+ {
+ return new KeyParameter(keyEncryptionCipher.unwrap(encryptedContentEncryptionKey, 0, encryptedContentEncryptionKey.length));
+ }
+ catch (InvalidCipherTextException e)
+ {
+ throw new CMSException("unable to unwrap key: " + e.getMessage(), e);
+ }
+ }
+
+ public int getPasswordConversionScheme()
+ {
+ return schemeID;
+ }
+
+ public char[] getPassword()
+ {
+ return password;
+ }
+}
diff --git a/pkix/src/main/java/org/bouncycastle/cms/bc/BcPasswordRecipientInfoGenerator.java b/pkix/src/main/java/org/bouncycastle/cms/bc/BcPasswordRecipientInfoGenerator.java
new file mode 100644
index 00000000..34cf9483
--- /dev/null
+++ b/pkix/src/main/java/org/bouncycastle/cms/bc/BcPasswordRecipientInfoGenerator.java
@@ -0,0 +1,31 @@
+package org.bouncycastle.cms.bc;
+
+import org.bouncycastle.asn1.ASN1ObjectIdentifier;
+import org.bouncycastle.asn1.ASN1OctetString;
+import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
+import org.bouncycastle.cms.CMSException;
+import org.bouncycastle.cms.PasswordRecipientInfoGenerator;
+import org.bouncycastle.crypto.Wrapper;
+import org.bouncycastle.crypto.params.KeyParameter;
+import org.bouncycastle.crypto.params.ParametersWithIV;
+import org.bouncycastle.operator.GenericKey;
+
+public class BcPasswordRecipientInfoGenerator
+ extends PasswordRecipientInfoGenerator
+{
+ public BcPasswordRecipientInfoGenerator(ASN1ObjectIdentifier kekAlgorithm, char[] password)
+ {
+ super(kekAlgorithm, password);
+ }
+
+ public byte[] generateEncryptedBytes(AlgorithmIdentifier keyEncryptionAlgorithm, byte[] derivedKey, GenericKey contentEncryptionKey)
+ throws CMSException
+ {
+ byte[] contentEncryptionKeySpec = ((KeyParameter)CMSUtils.getBcKey(contentEncryptionKey)).getKey();
+ Wrapper keyEncryptionCipher = EnvelopedDataHelper.createRFC3211Wrapper(keyEncryptionAlgorithm.getAlgorithm());
+
+ keyEncryptionCipher.init(true, new ParametersWithIV(new KeyParameter(derivedKey), ASN1OctetString.getInstance(keyEncryptionAlgorithm.getParameters()).getOctets()));
+
+ return keyEncryptionCipher.wrap(contentEncryptionKeySpec, 0, contentEncryptionKeySpec.length);
+ }
+}
diff --git a/pkix/src/main/java/org/bouncycastle/cms/bc/BcRSAKeyTransEnvelopedRecipient.java b/pkix/src/main/java/org/bouncycastle/cms/bc/BcRSAKeyTransEnvelopedRecipient.java
new file mode 100644
index 00000000..ed933fe6
--- /dev/null
+++ b/pkix/src/main/java/org/bouncycastle/cms/bc/BcRSAKeyTransEnvelopedRecipient.java
@@ -0,0 +1,50 @@
+package org.bouncycastle.cms.bc;
+
+import java.io.InputStream;
+
+import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
+import org.bouncycastle.cms.CMSException;
+import org.bouncycastle.cms.RecipientOperator;
+import org.bouncycastle.crypto.BufferedBlockCipher;
+import org.bouncycastle.crypto.CipherParameters;
+import org.bouncycastle.crypto.StreamCipher;
+import org.bouncycastle.crypto.io.CipherInputStream;
+import org.bouncycastle.crypto.params.AsymmetricKeyParameter;
+import org.bouncycastle.operator.InputDecryptor;
+
+public class BcRSAKeyTransEnvelopedRecipient
+ extends BcKeyTransRecipient
+{
+ public BcRSAKeyTransEnvelopedRecipient(AsymmetricKeyParameter key)
+ {
+ super(key);
+ }
+
+ public RecipientOperator getRecipientOperator(AlgorithmIdentifier keyEncryptionAlgorithm, final AlgorithmIdentifier contentEncryptionAlgorithm, byte[] encryptedContentEncryptionKey)
+ throws CMSException
+ {
+ CipherParameters secretKey = extractSecretKey(keyEncryptionAlgorithm, contentEncryptionAlgorithm, encryptedContentEncryptionKey);
+
+ final Object dataCipher = EnvelopedDataHelper.createContentCipher(false, secretKey, contentEncryptionAlgorithm);
+
+ return new RecipientOperator(new InputDecryptor()
+ {
+ public AlgorithmIdentifier getAlgorithmIdentifier()
+ {
+ return contentEncryptionAlgorithm;
+ }
+
+ public InputStream getInputStream(InputStream dataIn)
+ {
+ if (dataCipher instanceof BufferedBlockCipher)
+ {
+ return new CipherInputStream(dataIn, (BufferedBlockCipher)dataCipher);
+ }
+ else
+ {
+ return new CipherInputStream(dataIn, (StreamCipher)dataCipher);
+ }
+ }
+ });
+ }
+}
diff --git a/pkix/src/main/java/org/bouncycastle/cms/bc/BcRSAKeyTransRecipientInfoGenerator.java b/pkix/src/main/java/org/bouncycastle/cms/bc/BcRSAKeyTransRecipientInfoGenerator.java
new file mode 100644
index 00000000..b571b9ae
--- /dev/null
+++ b/pkix/src/main/java/org/bouncycastle/cms/bc/BcRSAKeyTransRecipientInfoGenerator.java
@@ -0,0 +1,23 @@
+package org.bouncycastle.cms.bc;
+
+import java.io.IOException;
+
+import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
+import org.bouncycastle.cert.X509CertificateHolder;
+import org.bouncycastle.crypto.params.AsymmetricKeyParameter;
+import org.bouncycastle.operator.bc.BcRSAAsymmetricKeyWrapper;
+
+public class BcRSAKeyTransRecipientInfoGenerator
+ extends BcKeyTransRecipientInfoGenerator
+{
+ public BcRSAKeyTransRecipientInfoGenerator(byte[] subjectKeyIdentifier, AlgorithmIdentifier encAlgId, AsymmetricKeyParameter publicKey)
+ {
+ super(subjectKeyIdentifier, new BcRSAAsymmetricKeyWrapper(encAlgId, publicKey));
+ }
+
+ public BcRSAKeyTransRecipientInfoGenerator(X509CertificateHolder recipientCert)
+ throws IOException
+ {
+ super(recipientCert, new BcRSAAsymmetricKeyWrapper(recipientCert.getSubjectPublicKeyInfo().getAlgorithmId(), recipientCert.getSubjectPublicKeyInfo()));
+ }
+}
diff --git a/pkix/src/main/java/org/bouncycastle/cms/bc/BcRSASignerInfoVerifierBuilder.java b/pkix/src/main/java/org/bouncycastle/cms/bc/BcRSASignerInfoVerifierBuilder.java
new file mode 100644
index 00000000..93abd65e
--- /dev/null
+++ b/pkix/src/main/java/org/bouncycastle/cms/bc/BcRSASignerInfoVerifierBuilder.java
@@ -0,0 +1,39 @@
+package org.bouncycastle.cms.bc;
+
+import org.bouncycastle.cert.X509CertificateHolder;
+import org.bouncycastle.cms.CMSSignatureAlgorithmNameGenerator;
+import org.bouncycastle.cms.SignerInformationVerifier;
+import org.bouncycastle.crypto.params.AsymmetricKeyParameter;
+import org.bouncycastle.operator.DigestAlgorithmIdentifierFinder;
+import org.bouncycastle.operator.DigestCalculatorProvider;
+import org.bouncycastle.operator.OperatorCreationException;
+import org.bouncycastle.operator.SignatureAlgorithmIdentifierFinder;
+import org.bouncycastle.operator.bc.BcRSAContentVerifierProviderBuilder;
+
+public class BcRSASignerInfoVerifierBuilder
+{
+ private BcRSAContentVerifierProviderBuilder contentVerifierProviderBuilder;
+ private DigestCalculatorProvider digestCalculatorProvider;
+ private CMSSignatureAlgorithmNameGenerator sigAlgNameGen;
+ private SignatureAlgorithmIdentifierFinder sigAlgIdFinder;
+
+ public BcRSASignerInfoVerifierBuilder(CMSSignatureAlgorithmNameGenerator sigAlgNameGen, SignatureAlgorithmIdentifierFinder sigAlgIdFinder, DigestAlgorithmIdentifierFinder digestAlgorithmFinder, DigestCalculatorProvider digestCalculatorProvider)
+ {
+ this.sigAlgNameGen = sigAlgNameGen;
+ this.sigAlgIdFinder = sigAlgIdFinder;
+ this.contentVerifierProviderBuilder = new BcRSAContentVerifierProviderBuilder(digestAlgorithmFinder);
+ this.digestCalculatorProvider = digestCalculatorProvider;
+ }
+
+ public SignerInformationVerifier build(X509CertificateHolder certHolder)
+ throws OperatorCreationException
+ {
+ return new SignerInformationVerifier(sigAlgNameGen, sigAlgIdFinder, contentVerifierProviderBuilder.build(certHolder), digestCalculatorProvider);
+ }
+
+ public SignerInformationVerifier build(AsymmetricKeyParameter pubKey)
+ throws OperatorCreationException
+ {
+ return new SignerInformationVerifier(sigAlgNameGen, sigAlgIdFinder, contentVerifierProviderBuilder.build(pubKey), digestCalculatorProvider);
+ }
+}
diff --git a/pkix/src/main/java/org/bouncycastle/cms/bc/CMSUtils.java b/pkix/src/main/java/org/bouncycastle/cms/bc/CMSUtils.java
new file mode 100644
index 00000000..8beb36a1
--- /dev/null
+++ b/pkix/src/main/java/org/bouncycastle/cms/bc/CMSUtils.java
@@ -0,0 +1,23 @@
+package org.bouncycastle.cms.bc;
+
+import org.bouncycastle.crypto.CipherParameters;
+import org.bouncycastle.crypto.params.KeyParameter;
+import org.bouncycastle.operator.GenericKey;
+
+class CMSUtils
+{
+ static CipherParameters getBcKey(GenericKey key)
+ {
+ if (key.getRepresentation() instanceof CipherParameters)
+ {
+ return (CipherParameters)key.getRepresentation();
+ }
+
+ if (key.getRepresentation() instanceof byte[])
+ {
+ return new KeyParameter((byte[])key.getRepresentation());
+ }
+
+ throw new IllegalArgumentException("unknown generic key type");
+ }
+}
diff --git a/pkix/src/main/java/org/bouncycastle/cms/bc/EnvelopedDataHelper.java b/pkix/src/main/java/org/bouncycastle/cms/bc/EnvelopedDataHelper.java
new file mode 100644
index 00000000..bb7c3cd6
--- /dev/null
+++ b/pkix/src/main/java/org/bouncycastle/cms/bc/EnvelopedDataHelper.java
@@ -0,0 +1,378 @@
+package org.bouncycastle.cms.bc;
+
+import java.security.SecureRandom;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.bouncycastle.asn1.ASN1Null;
+import org.bouncycastle.asn1.ASN1ObjectIdentifier;
+import org.bouncycastle.asn1.ASN1OctetString;
+import org.bouncycastle.asn1.ASN1Primitive;
+import org.bouncycastle.asn1.DERNull;
+import org.bouncycastle.asn1.DEROctetString;
+import org.bouncycastle.asn1.kisa.KISAObjectIdentifiers;
+import org.bouncycastle.asn1.misc.CAST5CBCParameters;
+import org.bouncycastle.asn1.nist.NISTObjectIdentifiers;
+import org.bouncycastle.asn1.ntt.NTTObjectIdentifiers;
+import org.bouncycastle.asn1.oiw.OIWObjectIdentifiers;
+import org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers;
+import org.bouncycastle.asn1.pkcs.RC2CBCParameter;
+import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
+import org.bouncycastle.cms.CMSAlgorithm;
+import org.bouncycastle.cms.CMSException;
+import org.bouncycastle.crypto.BlockCipher;
+import org.bouncycastle.crypto.BufferedBlockCipher;
+import org.bouncycastle.crypto.CipherKeyGenerator;
+import org.bouncycastle.crypto.CipherParameters;
+import org.bouncycastle.crypto.KeyGenerationParameters;
+import org.bouncycastle.crypto.StreamCipher;
+import org.bouncycastle.crypto.Wrapper;
+import org.bouncycastle.crypto.engines.AESEngine;
+import org.bouncycastle.crypto.engines.DESEngine;
+import org.bouncycastle.crypto.engines.DESedeEngine;
+import org.bouncycastle.crypto.engines.RC2Engine;
+import org.bouncycastle.crypto.engines.RC4Engine;
+import org.bouncycastle.crypto.engines.RFC3211WrapEngine;
+import org.bouncycastle.crypto.generators.DESKeyGenerator;
+import org.bouncycastle.crypto.generators.DESedeKeyGenerator;
+import org.bouncycastle.crypto.modes.CBCBlockCipher;
+import org.bouncycastle.crypto.paddings.PKCS7Padding;
+import org.bouncycastle.crypto.paddings.PaddedBufferedBlockCipher;
+import org.bouncycastle.crypto.params.KeyParameter;
+import org.bouncycastle.crypto.params.ParametersWithIV;
+import org.bouncycastle.crypto.params.RC2Parameters;
+
+class EnvelopedDataHelper
+{
+ protected static final Map BASE_CIPHER_NAMES = new HashMap();
+ protected static final Map CIPHER_ALG_NAMES = new HashMap();
+ protected static final Map MAC_ALG_NAMES = new HashMap();
+
+ static
+ {
+ BASE_CIPHER_NAMES.put(CMSAlgorithm.DES_EDE3_CBC, "DESEDE");
+ BASE_CIPHER_NAMES.put(CMSAlgorithm.AES128_CBC, "AES");
+ BASE_CIPHER_NAMES.put(CMSAlgorithm.AES192_CBC, "AES");
+ BASE_CIPHER_NAMES.put(CMSAlgorithm.AES256_CBC, "AES");
+
+ CIPHER_ALG_NAMES.put(CMSAlgorithm.DES_EDE3_CBC, "DESEDE/CBC/PKCS5Padding");
+ CIPHER_ALG_NAMES.put(CMSAlgorithm.AES128_CBC, "AES/CBC/PKCS5Padding");
+ CIPHER_ALG_NAMES.put(CMSAlgorithm.AES192_CBC, "AES/CBC/PKCS5Padding");
+ CIPHER_ALG_NAMES.put(CMSAlgorithm.AES256_CBC, "AES/CBC/PKCS5Padding");
+ CIPHER_ALG_NAMES.put(new ASN1ObjectIdentifier(PKCSObjectIdentifiers.rsaEncryption.getId()), "RSA/ECB/PKCS1Padding");
+ CIPHER_ALG_NAMES.put(CMSAlgorithm.CAST5_CBC, "CAST5/CBC/PKCS5Padding");
+ CIPHER_ALG_NAMES.put(CMSAlgorithm.CAMELLIA128_CBC, "Camellia/CBC/PKCS5Padding");
+ CIPHER_ALG_NAMES.put(CMSAlgorithm.CAMELLIA192_CBC, "Camellia/CBC/PKCS5Padding");
+ CIPHER_ALG_NAMES.put(CMSAlgorithm.CAMELLIA256_CBC, "Camellia/CBC/PKCS5Padding");
+ CIPHER_ALG_NAMES.put(CMSAlgorithm.SEED_CBC, "SEED/CBC/PKCS5Padding");
+
+ MAC_ALG_NAMES.put(CMSAlgorithm.DES_EDE3_CBC, "DESEDEMac");
+ MAC_ALG_NAMES.put(CMSAlgorithm.AES128_CBC, "AESMac");
+ MAC_ALG_NAMES.put(CMSAlgorithm.AES192_CBC, "AESMac");
+ MAC_ALG_NAMES.put(CMSAlgorithm.AES256_CBC, "AESMac");
+ MAC_ALG_NAMES.put(CMSAlgorithm.RC2_CBC, "RC2Mac");
+ }
+
+ private static final short[] rc2Table = {
+ 0xbd, 0x56, 0xea, 0xf2, 0xa2, 0xf1, 0xac, 0x2a, 0xb0, 0x93, 0xd1, 0x9c, 0x1b, 0x33, 0xfd, 0xd0,
+ 0x30, 0x04, 0xb6, 0xdc, 0x7d, 0xdf, 0x32, 0x4b, 0xf7, 0xcb, 0x45, 0x9b, 0x31, 0xbb, 0x21, 0x5a,
+ 0x41, 0x9f, 0xe1, 0xd9, 0x4a, 0x4d, 0x9e, 0xda, 0xa0, 0x68, 0x2c, 0xc3, 0x27, 0x5f, 0x80, 0x36,
+ 0x3e, 0xee, 0xfb, 0x95, 0x1a, 0xfe, 0xce, 0xa8, 0x34, 0xa9, 0x13, 0xf0, 0xa6, 0x3f, 0xd8, 0x0c,
+ 0x78, 0x24, 0xaf, 0x23, 0x52, 0xc1, 0x67, 0x17, 0xf5, 0x66, 0x90, 0xe7, 0xe8, 0x07, 0xb8, 0x60,
+ 0x48, 0xe6, 0x1e, 0x53, 0xf3, 0x92, 0xa4, 0x72, 0x8c, 0x08, 0x15, 0x6e, 0x86, 0x00, 0x84, 0xfa,
+ 0xf4, 0x7f, 0x8a, 0x42, 0x19, 0xf6, 0xdb, 0xcd, 0x14, 0x8d, 0x50, 0x12, 0xba, 0x3c, 0x06, 0x4e,
+ 0xec, 0xb3, 0x35, 0x11, 0xa1, 0x88, 0x8e, 0x2b, 0x94, 0x99, 0xb7, 0x71, 0x74, 0xd3, 0xe4, 0xbf,
+ 0x3a, 0xde, 0x96, 0x0e, 0xbc, 0x0a, 0xed, 0x77, 0xfc, 0x37, 0x6b, 0x03, 0x79, 0x89, 0x62, 0xc6,
+ 0xd7, 0xc0, 0xd2, 0x7c, 0x6a, 0x8b, 0x22, 0xa3, 0x5b, 0x05, 0x5d, 0x02, 0x75, 0xd5, 0x61, 0xe3,
+ 0x18, 0x8f, 0x55, 0x51, 0xad, 0x1f, 0x0b, 0x5e, 0x85, 0xe5, 0xc2, 0x57, 0x63, 0xca, 0x3d, 0x6c,
+ 0xb4, 0xc5, 0xcc, 0x70, 0xb2, 0x91, 0x59, 0x0d, 0x47, 0x20, 0xc8, 0x4f, 0x58, 0xe0, 0x01, 0xe2,
+ 0x16, 0x38, 0xc4, 0x6f, 0x3b, 0x0f, 0x65, 0x46, 0xbe, 0x7e, 0x2d, 0x7b, 0x82, 0xf9, 0x40, 0xb5,
+ 0x1d, 0x73, 0xf8, 0xeb, 0x26, 0xc7, 0x87, 0x97, 0x25, 0x54, 0xb1, 0x28, 0xaa, 0x98, 0x9d, 0xa5,
+ 0x64, 0x6d, 0x7a, 0xd4, 0x10, 0x81, 0x44, 0xef, 0x49, 0xd6, 0xae, 0x2e, 0xdd, 0x76, 0x5c, 0x2f,
+ 0xa7, 0x1c, 0xc9, 0x09, 0x69, 0x9a, 0x83, 0xcf, 0x29, 0x39, 0xb9, 0xe9, 0x4c, 0xff, 0x43, 0xab
+ };
+
+ private static final short[] rc2Ekb = {
+ 0x5d, 0xbe, 0x9b, 0x8b, 0x11, 0x99, 0x6e, 0x4d, 0x59, 0xf3, 0x85, 0xa6, 0x3f, 0xb7, 0x83, 0xc5,
+ 0xe4, 0x73, 0x6b, 0x3a, 0x68, 0x5a, 0xc0, 0x47, 0xa0, 0x64, 0x34, 0x0c, 0xf1, 0xd0, 0x52, 0xa5,
+ 0xb9, 0x1e, 0x96, 0x43, 0x41, 0xd8, 0xd4, 0x2c, 0xdb, 0xf8, 0x07, 0x77, 0x2a, 0xca, 0xeb, 0xef,
+ 0x10, 0x1c, 0x16, 0x0d, 0x38, 0x72, 0x2f, 0x89, 0xc1, 0xf9, 0x80, 0xc4, 0x6d, 0xae, 0x30, 0x3d,
+ 0xce, 0x20, 0x63, 0xfe, 0xe6, 0x1a, 0xc7, 0xb8, 0x50, 0xe8, 0x24, 0x17, 0xfc, 0x25, 0x6f, 0xbb,
+ 0x6a, 0xa3, 0x44, 0x53, 0xd9, 0xa2, 0x01, 0xab, 0xbc, 0xb6, 0x1f, 0x98, 0xee, 0x9a, 0xa7, 0x2d,
+ 0x4f, 0x9e, 0x8e, 0xac, 0xe0, 0xc6, 0x49, 0x46, 0x29, 0xf4, 0x94, 0x8a, 0xaf, 0xe1, 0x5b, 0xc3,
+ 0xb3, 0x7b, 0x57, 0xd1, 0x7c, 0x9c, 0xed, 0x87, 0x40, 0x8c, 0xe2, 0xcb, 0x93, 0x14, 0xc9, 0x61,
+ 0x2e, 0xe5, 0xcc, 0xf6, 0x5e, 0xa8, 0x5c, 0xd6, 0x75, 0x8d, 0x62, 0x95, 0x58, 0x69, 0x76, 0xa1,
+ 0x4a, 0xb5, 0x55, 0x09, 0x78, 0x33, 0x82, 0xd7, 0xdd, 0x79, 0xf5, 0x1b, 0x0b, 0xde, 0x26, 0x21,
+ 0x28, 0x74, 0x04, 0x97, 0x56, 0xdf, 0x3c, 0xf0, 0x37, 0x39, 0xdc, 0xff, 0x06, 0xa4, 0xea, 0x42,
+ 0x08, 0xda, 0xb4, 0x71, 0xb0, 0xcf, 0x12, 0x7a, 0x4e, 0xfa, 0x6c, 0x1d, 0x84, 0x00, 0xc8, 0x7f,
+ 0x91, 0x45, 0xaa, 0x2b, 0xc2, 0xb1, 0x8f, 0xd5, 0xba, 0xf2, 0xad, 0x19, 0xb2, 0x67, 0x36, 0xf7,
+ 0x0f, 0x0a, 0x92, 0x7d, 0xe3, 0x9d, 0xe9, 0x90, 0x3e, 0x23, 0x27, 0x66, 0x13, 0xec, 0x81, 0x15,
+ 0xbd, 0x22, 0xbf, 0x9f, 0x7e, 0xa9, 0x51, 0x4b, 0x4c, 0xfb, 0x02, 0xd3, 0x70, 0x86, 0x31, 0xe7,
+ 0x3b, 0x05, 0x03, 0x54, 0x60, 0x48, 0x65, 0x18, 0xd2, 0xcd, 0x5f, 0x32, 0x88, 0x0e, 0x35, 0xfd
+ };
+
+ EnvelopedDataHelper()
+ {
+ }
+
+ String getBaseCipherName(ASN1ObjectIdentifier algorithm)
+ {
+ String name = (String)BASE_CIPHER_NAMES.get(algorithm);
+
+ if (name == null)
+ {
+ return algorithm.getId();
+ }
+
+ return name;
+ }
+
+ static BufferedBlockCipher createCipher(ASN1ObjectIdentifier algorithm)
+ throws CMSException
+ {
+ BlockCipher cipher;
+
+ if (NISTObjectIdentifiers.id_aes128_CBC.equals(algorithm)
+ || NISTObjectIdentifiers.id_aes192_CBC.equals(algorithm)
+ || NISTObjectIdentifiers.id_aes256_CBC.equals(algorithm))
+ {
+ cipher = new CBCBlockCipher(new AESEngine());
+ }
+ else if (PKCSObjectIdentifiers.des_EDE3_CBC.equals(algorithm))
+ {
+ cipher = new CBCBlockCipher(new DESedeEngine());
+ }
+ else if (OIWObjectIdentifiers.desCBC.equals(algorithm))
+ {
+ cipher = new CBCBlockCipher(new DESEngine());
+ }
+ else if (PKCSObjectIdentifiers.RC2_CBC.equals(algorithm))
+ {
+ cipher = new CBCBlockCipher(new RC2Engine());
+ }
+ else
+ {
+ throw new CMSException("cannot recognise cipher: " + algorithm);
+ }
+
+ return new PaddedBufferedBlockCipher(cipher, new PKCS7Padding());
+ }
+
+ static Wrapper createRFC3211Wrapper(ASN1ObjectIdentifier algorithm)
+ throws CMSException
+ {
+ if (NISTObjectIdentifiers.id_aes128_CBC.equals(algorithm)
+ || NISTObjectIdentifiers.id_aes192_CBC.equals(algorithm)
+ || NISTObjectIdentifiers.id_aes256_CBC.equals(algorithm))
+ {
+ return new RFC3211WrapEngine(new AESEngine());
+ }
+ else if (PKCSObjectIdentifiers.des_EDE3_CBC.equals(algorithm))
+ {
+ return new RFC3211WrapEngine(new DESedeEngine());
+ }
+ else if (OIWObjectIdentifiers.desCBC.equals(algorithm))
+ {
+ return new RFC3211WrapEngine(new DESEngine());
+ }
+ else if (PKCSObjectIdentifiers.RC2_CBC.equals(algorithm))
+ {
+ return new RFC3211WrapEngine(new RC2Engine());
+ }
+ else
+ {
+ throw new CMSException("cannot recognise wrapper: " + algorithm);
+ }
+ }
+
+ static Object createContentCipher(boolean forEncryption, CipherParameters encKey, AlgorithmIdentifier encryptionAlgID)
+ throws CMSException
+ {
+ ASN1ObjectIdentifier encAlg = encryptionAlgID.getAlgorithm();
+
+ if (encAlg.equals(PKCSObjectIdentifiers.rc4))
+ {
+ StreamCipher cipher = new RC4Engine();
+
+ cipher.init(forEncryption, encKey);
+
+ return cipher;
+ }
+ else
+ {
+ BufferedBlockCipher cipher = createCipher(encryptionAlgID.getAlgorithm());
+ ASN1Primitive sParams = encryptionAlgID.getParameters().toASN1Primitive();
+
+ if (sParams != null && !(sParams instanceof ASN1Null))
+ {
+ if (encAlg.equals(CMSAlgorithm.DES_EDE3_CBC)
+ || encAlg.equals(CMSAlgorithm.IDEA_CBC)
+ || encAlg.equals(CMSAlgorithm.AES128_CBC)
+ || encAlg.equals(CMSAlgorithm.AES192_CBC)
+ || encAlg.equals(CMSAlgorithm.AES256_CBC)
+ || encAlg.equals(CMSAlgorithm.CAMELLIA128_CBC)
+ || encAlg.equals(CMSAlgorithm.CAMELLIA192_CBC)
+ || encAlg.equals(CMSAlgorithm.CAMELLIA256_CBC)
+ || encAlg.equals(CMSAlgorithm.SEED_CBC)
+ || encAlg.equals(OIWObjectIdentifiers.desCBC))
+ {
+ cipher.init(forEncryption, new ParametersWithIV(encKey,
+ ASN1OctetString.getInstance(sParams).getOctets()));
+ }
+ else if (encAlg.equals(CMSAlgorithm.CAST5_CBC))
+ {
+ CAST5CBCParameters cbcParams = CAST5CBCParameters.getInstance(sParams);
+
+ cipher.init(forEncryption, new ParametersWithIV(encKey, cbcParams.getIV()));
+ }
+ else if (encAlg.equals(CMSAlgorithm.RC2_CBC))
+ {
+ RC2CBCParameter cbcParams = RC2CBCParameter.getInstance(sParams);
+
+ cipher.init(forEncryption, new ParametersWithIV(new RC2Parameters(((KeyParameter)encKey).getKey(), rc2Ekb[cbcParams.getRC2ParameterVersion().intValue()]), cbcParams.getIV()));
+ }
+ else
+ {
+ throw new CMSException("cannot match parameters");
+ }
+ }
+ else
+ {
+ if (encAlg.equals(CMSAlgorithm.DES_EDE3_CBC)
+ || encAlg.equals(CMSAlgorithm.IDEA_CBC)
+ || encAlg.equals(CMSAlgorithm.CAST5_CBC))
+ {
+ cipher.init(forEncryption, new ParametersWithIV(encKey, new byte[8]));
+ }
+ else
+ {
+ cipher.init(forEncryption, encKey);
+ }
+ }
+
+ return cipher;
+ }
+ }
+
+ AlgorithmIdentifier generateAlgorithmIdentifier(ASN1ObjectIdentifier encryptionOID, CipherParameters encKey, SecureRandom random)
+ throws CMSException
+ {
+ if (encryptionOID.equals(CMSAlgorithm.AES128_CBC)
+ || encryptionOID.equals(CMSAlgorithm.AES192_CBC)
+ || encryptionOID.equals(CMSAlgorithm.AES256_CBC)
+ || encryptionOID.equals(CMSAlgorithm.CAMELLIA128_CBC)
+ || encryptionOID.equals(CMSAlgorithm.CAMELLIA192_CBC)
+ || encryptionOID.equals(CMSAlgorithm.CAMELLIA256_CBC)
+ || encryptionOID.equals(CMSAlgorithm.SEED_CBC))
+ {
+ byte[] iv = new byte[16];
+
+ random.nextBytes(iv);
+
+ return new AlgorithmIdentifier(encryptionOID, new DEROctetString(iv));
+ }
+ else if (encryptionOID.equals(CMSAlgorithm.DES_EDE3_CBC)
+ || encryptionOID.equals(CMSAlgorithm.IDEA_CBC)
+ || encryptionOID.equals(OIWObjectIdentifiers.desCBC))
+ {
+ byte[] iv = new byte[8];
+
+ random.nextBytes(iv);
+
+ return new AlgorithmIdentifier(encryptionOID, new DEROctetString(iv));
+ }
+ else if (encryptionOID.equals(CMSAlgorithm.CAST5_CBC))
+ {
+ byte[] iv = new byte[8];
+
+ random.nextBytes(iv);
+
+ CAST5CBCParameters cbcParams = new CAST5CBCParameters(iv, ((KeyParameter)encKey).getKey().length * 8);
+
+ return new AlgorithmIdentifier(encryptionOID, cbcParams);
+ }
+ else if (encryptionOID.equals(PKCSObjectIdentifiers.rc4))
+ {
+ return new AlgorithmIdentifier(encryptionOID, DERNull.INSTANCE);
+ }
+ else
+ {
+ throw new CMSException("unable to match algorithm");
+ }
+ }
+
+ CipherKeyGenerator createKeyGenerator(ASN1ObjectIdentifier algorithm, SecureRandom random)
+ throws CMSException
+ {
+ if (NISTObjectIdentifiers.id_aes128_CBC.equals(algorithm))
+ {
+ return createCipherKeyGenerator(random, 128);
+ }
+ else if (NISTObjectIdentifiers.id_aes192_CBC.equals(algorithm))
+ {
+ return createCipherKeyGenerator(random, 192);
+ }
+ else if (NISTObjectIdentifiers.id_aes256_CBC.equals(algorithm))
+ {
+ return createCipherKeyGenerator(random, 256);
+ }
+ else if (PKCSObjectIdentifiers.des_EDE3_CBC.equals(algorithm))
+ {
+ DESedeKeyGenerator keyGen = new DESedeKeyGenerator();
+
+ keyGen.init(new KeyGenerationParameters(random, 192));
+
+ return keyGen;
+ }
+ else if (NTTObjectIdentifiers.id_camellia128_cbc.equals(algorithm))
+ {
+ return createCipherKeyGenerator(random, 128);
+ }
+ else if (NTTObjectIdentifiers.id_camellia192_cbc.equals(algorithm))
+ {
+ return createCipherKeyGenerator(random, 192);
+ }
+ else if (NTTObjectIdentifiers.id_camellia256_cbc.equals(algorithm))
+ {
+ return createCipherKeyGenerator(random, 256);
+ }
+ else if (KISAObjectIdentifiers.id_seedCBC.equals(algorithm))
+ {
+ return createCipherKeyGenerator(random, 128);
+ }
+ else if (CMSAlgorithm.CAST5_CBC.equals(algorithm))
+ {
+ return createCipherKeyGenerator(random, 128);
+ }
+ else if (OIWObjectIdentifiers.desCBC.equals(algorithm))
+ {
+ DESKeyGenerator keyGen = new DESKeyGenerator();
+
+ keyGen.init(new KeyGenerationParameters(random, 64));
+
+ return keyGen;
+ }
+ else if (PKCSObjectIdentifiers.rc4.equals(algorithm))
+ {
+ return createCipherKeyGenerator(random, 128);
+ }
+// else if (PKCSObjectIdentifiers.RC2_CBC.equals(algorithm))
+// {
+// cipher = new CBCBlockCipher(new RC2Engine());
+// }
+ else
+ {
+ throw new CMSException("cannot recognise cipher: " + algorithm);
+ }
+
+ }
+
+ private CipherKeyGenerator createCipherKeyGenerator(SecureRandom random, int keySize)
+ {
+ CipherKeyGenerator keyGen = new CipherKeyGenerator();
+
+ keyGen.init(new KeyGenerationParameters(random, keySize));
+
+ return keyGen;
+ }
+}