kz.gamma.cms
Class CMSEnvelopedHelper

java.lang.Object
  kz.gamma.cms.CMSEnvelopedHelper

 class CMSEnvelopedHelper
extends java.lang.Object

Field Summary

private static java.util.Map	BASE_CIPHER_NAMES
private static java.util.Map	CIPHER_ALG_NAMES
(package private) static CMSEnvelopedHelper	INSTANCE
private static java.util.Map	KEYSIZES

Constructor Summary

CMSEnvelopedHelper()

Method Summary

(package private) java.security.AlgorithmParameters	createAlgorithmParameters(java.lang.String encryptionOID, java.lang.String provider)
private java.security.AlgorithmParameters	createAlgorithmParams(java.lang.String algName, java.lang.String provider)
(package private) javax.crypto.Cipher	createAsymmetricCipher(java.lang.String encryptionOid, java.lang.String provider)
private javax.crypto.Cipher	createCipher(java.lang.String algName, java.lang.String provider)
private javax.crypto.KeyGenerator	createKeyGenerator(java.lang.String algName, java.lang.String provider)
(package private) javax.crypto.KeyGenerator	createSymmetricKeyGenerator(java.lang.String encryptionOID, java.lang.String provider)
private java.lang.String	getAsymmetricEncryptionAlgName(java.lang.String encryptionAlgOID)
(package private) java.security.AlgorithmParameters	getEncryptionAlgorithmParameters(java.lang.String encOID, byte[] encParams, java.lang.String provider)
(package private) int	getKeySize(java.lang.String oid)
(package private) java.lang.String	getRFC3211WrapperName(java.lang.String oid)
(package private) javax.crypto.Cipher	getSymmetricCipher(java.lang.String encryptionOID, java.lang.String provider)
(package private) java.lang.String	getSymmetricCipherName(java.lang.String oid)

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

static final CMSEnvelopedHelper INSTANCE

KEYSIZES

private static final java.util.Map KEYSIZES

BASE_CIPHER_NAMES

private static final java.util.Map BASE_CIPHER_NAMES

CIPHER_ALG_NAMES

private static final java.util.Map CIPHER_ALG_NAMES

Constructor Detail

CMSEnvelopedHelper

CMSEnvelopedHelper()

Method Detail

getAsymmetricEncryptionAlgName

private java.lang.String getAsymmetricEncryptionAlgName(java.lang.String encryptionAlgOID)

createAsymmetricCipher

javax.crypto.Cipher createAsymmetricCipher(java.lang.String encryptionOid,
                                           java.lang.String provider)
                                     throws java.security.NoSuchAlgorithmException,
                                            java.security.NoSuchProviderException,
                                            javax.crypto.NoSuchPaddingException

Throws:

java.security.NoSuchAlgorithmException

java.security.NoSuchProviderException

javax.crypto.NoSuchPaddingException

createSymmetricKeyGenerator

javax.crypto.KeyGenerator createSymmetricKeyGenerator(java.lang.String encryptionOID,
                                                      java.lang.String provider)
                                                throws java.security.NoSuchProviderException,
                                                       java.security.NoSuchAlgorithmException

Throws:

java.security.NoSuchProviderException

java.security.NoSuchAlgorithmException

createAlgorithmParameters

java.security.AlgorithmParameters createAlgorithmParameters(java.lang.String encryptionOID,
                                                            java.lang.String provider)
                                                      throws java.security.NoSuchProviderException,
                                                             java.security.NoSuchAlgorithmException

Throws:

java.security.NoSuchProviderException

java.security.NoSuchAlgorithmException

getRFC3211WrapperName

java.lang.String getRFC3211WrapperName(java.lang.String oid)

getKeySize

int getKeySize(java.lang.String oid)

createCipher

private javax.crypto.Cipher createCipher(java.lang.String algName,
                                         java.lang.String provider)
                                  throws java.security.NoSuchProviderException,
                                         java.security.NoSuchAlgorithmException,
                                         javax.crypto.NoSuchPaddingException

Throws:

java.security.NoSuchProviderException

java.security.NoSuchAlgorithmException

javax.crypto.NoSuchPaddingException

createAlgorithmParams

private java.security.AlgorithmParameters createAlgorithmParams(java.lang.String algName,
                                                                java.lang.String provider)
                                                         throws java.security.NoSuchProviderException,
                                                                java.security.NoSuchAlgorithmException

Throws:

java.security.NoSuchProviderException

java.security.NoSuchAlgorithmException

createKeyGenerator

private javax.crypto.KeyGenerator createKeyGenerator(java.lang.String algName,
                                                     java.lang.String provider)
                                              throws java.security.NoSuchProviderException,
                                                     java.security.NoSuchAlgorithmException

Throws:

java.security.NoSuchProviderException

java.security.NoSuchAlgorithmException

getSymmetricCipher

javax.crypto.Cipher getSymmetricCipher(java.lang.String encryptionOID,
                                       java.lang.String provider)
                                 throws java.security.NoSuchProviderException,
                                        java.security.NoSuchAlgorithmException,
                                        javax.crypto.NoSuchPaddingException

Throws:

java.security.NoSuchProviderException

java.security.NoSuchAlgorithmException

javax.crypto.NoSuchPaddingException

getEncryptionAlgorithmParameters

java.security.AlgorithmParameters getEncryptionAlgorithmParameters(java.lang.String encOID,
                                                                   byte[] encParams,
                                                                   java.lang.String provider)
                                                             throws CMSException,
                                                                    java.security.NoSuchProviderException

Throws:

CMSException

java.security.NoSuchProviderException

getSymmetricCipherName

java.lang.String getSymmetricCipherName(java.lang.String oid)