Interface CipherFactory
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- All Known Implementing Classes:
JCECipherFactory
public interface CipherFactory
A CipherFactory can create new CipherProvider, which is a wrapper for a javax.crypto.Cipher This service is only available when run on JDK1.2 or beyond. To use this service, either the SunJCE or an alternative clean room implementation of the JCE must be installed. To use a CipherProvider to encrypt or decrypt, it needs 3 things: 1) A CipherProvider that is initialized to ENCRYPT or DECRYPT 2) A secret Key for the encryption/decryption 3) An Initialization Vector (IvParameterSpec) that is used to create some randomness in the encryption See $WS/docs/funcspec/mulan/configurableEncryption.html See http://java.sun.com/products/JDK/1.1/docs/guide/security/CryptoSpec.html See http://java.sun.com/products/JDK/1.2/docs/guide/security/CryptoSpec.html See http://java.sun.com/products/jdk/1.2/jce/index.html
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Field Summary
Fields Modifier and Type Field Description static int
DECRYPT
static int
ENCRYPT
Get a CipherProvider that either Encrypts or Decrypts.static int
MIN_BOOTPASS_LENGTH
Minimum bootPassword length
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description java.lang.String
changeBootPassword(java.lang.String changeString, java.util.Properties properties, CipherProvider verify)
CipherProvider
createNewCipher(int mode)
Returns a CipherProvider which is the encryption or decryption engine.java.security.SecureRandom
getSecureRandom()
void
saveProperties(java.util.Properties properties)
void
verifyKey(boolean create, StorageFactory storageFactory, java.util.Properties properties)
Verify the external encryption key.
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Field Detail
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MIN_BOOTPASS_LENGTH
static final int MIN_BOOTPASS_LENGTH
Minimum bootPassword length- See Also:
- Constant Field Values
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ENCRYPT
static final int ENCRYPT
Get a CipherProvider that either Encrypts or Decrypts.- See Also:
- Constant Field Values
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DECRYPT
static final int DECRYPT
- See Also:
- Constant Field Values
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Method Detail
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getSecureRandom
java.security.SecureRandom getSecureRandom()
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createNewCipher
CipherProvider createNewCipher(int mode) throws StandardException
Returns a CipherProvider which is the encryption or decryption engine.- Parameters:
mode
- is either ENCRYPT or DECRYPT. The CipherProvider can only do encryption or decryption but not both.- Throws:
StandardException
- Standard Derby Error Policy
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changeBootPassword
java.lang.String changeBootPassword(java.lang.String changeString, java.util.Properties properties, CipherProvider verify) throws StandardException
- Throws:
StandardException
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verifyKey
void verifyKey(boolean create, StorageFactory storageFactory, java.util.Properties properties) throws StandardException
Verify the external encryption key. Throws exception if unable to verify that the encryption key is the same as that used during database creation or if there are any problems when trying to do the verification process.- Parameters:
create
- true means database is being created, whereas false implies that the database has already been createdstorageFactory
- storageFactory is used to access any stored data that might be needed for verification process of the encryption keyproperties
- properties at time of database connection as well as those in service.properties- Throws:
StandardException
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saveProperties
void saveProperties(java.util.Properties properties)
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