diff options
Diffstat (limited to 'pkix/src/main/java/org/bouncycastle/cert/crmf/jcajce/JceCRMFEncryptorBuilder.java')
-rw-r--r-- | pkix/src/main/java/org/bouncycastle/cert/crmf/jcajce/JceCRMFEncryptorBuilder.java | 136 |
1 files changed, 0 insertions, 136 deletions
diff --git a/pkix/src/main/java/org/bouncycastle/cert/crmf/jcajce/JceCRMFEncryptorBuilder.java b/pkix/src/main/java/org/bouncycastle/cert/crmf/jcajce/JceCRMFEncryptorBuilder.java deleted file mode 100644 index 701d36ea..00000000 --- a/pkix/src/main/java/org/bouncycastle/cert/crmf/jcajce/JceCRMFEncryptorBuilder.java +++ /dev/null @@ -1,136 +0,0 @@ -package org.bouncycastle.cert.crmf.jcajce; - -import java.io.OutputStream; -import java.security.AlgorithmParameters; -import java.security.GeneralSecurityException; -import java.security.Provider; -import java.security.SecureRandom; - -import javax.crypto.Cipher; -import javax.crypto.CipherOutputStream; -import javax.crypto.KeyGenerator; -import javax.crypto.SecretKey; - -import org.bouncycastle.asn1.ASN1ObjectIdentifier; -import org.bouncycastle.asn1.x509.AlgorithmIdentifier; -import org.bouncycastle.cert.crmf.CRMFException; -import org.bouncycastle.jcajce.util.DefaultJcaJceHelper; -import org.bouncycastle.jcajce.util.NamedJcaJceHelper; -import org.bouncycastle.jcajce.util.ProviderJcaJceHelper; -import org.bouncycastle.operator.GenericKey; -import org.bouncycastle.operator.OutputEncryptor; -import org.bouncycastle.operator.jcajce.JceGenericKey; - -public class JceCRMFEncryptorBuilder -{ - private final ASN1ObjectIdentifier encryptionOID; - private final int keySize; - - private CRMFHelper helper = new CRMFHelper(new DefaultJcaJceHelper()); - private SecureRandom random; - - public JceCRMFEncryptorBuilder(ASN1ObjectIdentifier encryptionOID) - { - this(encryptionOID, -1); - } - - public JceCRMFEncryptorBuilder(ASN1ObjectIdentifier encryptionOID, int keySize) - { - this.encryptionOID = encryptionOID; - this.keySize = keySize; - } - - public JceCRMFEncryptorBuilder setProvider(Provider provider) - { - this.helper = new CRMFHelper(new ProviderJcaJceHelper(provider)); - - return this; - } - - public JceCRMFEncryptorBuilder setProvider(String providerName) - { - this.helper = new CRMFHelper(new NamedJcaJceHelper(providerName)); - - return this; - } - - public JceCRMFEncryptorBuilder setSecureRandom(SecureRandom random) - { - this.random = random; - - return this; - } - - public OutputEncryptor build() - throws CRMFException - { - return new CRMFOutputEncryptor(encryptionOID, keySize, random); - } - - private class CRMFOutputEncryptor - implements OutputEncryptor - { - private SecretKey encKey; - private AlgorithmIdentifier algorithmIdentifier; - private Cipher cipher; - - CRMFOutputEncryptor(ASN1ObjectIdentifier encryptionOID, int keySize, SecureRandom random) - throws CRMFException - { - KeyGenerator keyGen = helper.createKeyGenerator(encryptionOID); - - if (random == null) - { - random = new SecureRandom(); - } - - if (keySize < 0) - { - keyGen.init(random); - } - else - { - keyGen.init(keySize, random); - } - - cipher = helper.createCipher(encryptionOID); - encKey = keyGen.generateKey(); - AlgorithmParameters params = helper.generateParameters(encryptionOID, encKey, random); - - try - { - cipher.init(Cipher.ENCRYPT_MODE, encKey, params, random); - } - catch (GeneralSecurityException e) - { - throw new CRMFException("unable to initialize cipher: " + e.getMessage(), e); - } - - // - // If params are null we try and second guess on them as some providers don't provide - // algorithm parameter generation explicity but instead generate them under the hood. - // - if (params == null) - { - params = cipher.getParameters(); - } - - algorithmIdentifier = helper.getAlgorithmIdentifier(encryptionOID, params); - } - - public AlgorithmIdentifier getAlgorithmIdentifier() - { - return algorithmIdentifier; - } - - public OutputStream getOutputStream(OutputStream dOut) - { - return new CipherOutputStream(dOut, cipher); - } - - public GenericKey getKey() - { - return new JceGenericKey(algorithmIdentifier, encKey); - } - } -} |