diff options
Diffstat (limited to 'pkix/src/main/jdk1.2/org/bouncycastle/cms/bc/BcCMSContentEncryptorBuilder.java')
-rw-r--r-- | pkix/src/main/jdk1.2/org/bouncycastle/cms/bc/BcCMSContentEncryptorBuilder.java | 124 |
1 files changed, 0 insertions, 124 deletions
diff --git a/pkix/src/main/jdk1.2/org/bouncycastle/cms/bc/BcCMSContentEncryptorBuilder.java b/pkix/src/main/jdk1.2/org/bouncycastle/cms/bc/BcCMSContentEncryptorBuilder.java deleted file mode 100644 index 5d1a2a66..00000000 --- a/pkix/src/main/jdk1.2/org/bouncycastle/cms/bc/BcCMSContentEncryptorBuilder.java +++ /dev/null @@ -1,124 +0,0 @@ -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 ASN1ObjectIdentifier encryptionOID; - private 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()); - } - } -} |