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## org.mozilla.jss.crypto
Class EncryptionAlgorithm

    java.lang.Object
      |
      +--org.mozilla.jss.crypto.Algorithm
            |
            +--org.mozilla.jss.crypto.EncryptionAlgorithm

public class EncryptionAlgorithm
extends Algorithm

An algorithm for performing symmetric encryption.

Field Summary
`private int` | `blockSize`
`static EncryptionAlgorithm` | `DES_CBC`
`static EncryptionAlgorithm` | `DES_CBC_PAD`
`static EncryptionAlgorithm` | `DES_ECB`
`static EncryptionAlgorithm` | `DES3_CBC`
`static EncryptionAlgorithm` | `DES3_CBC_PAD`
`static EncryptionAlgorithm` | `DES3_ECB`
`private static java.util.Hashtable` | `oidMap`
`private boolean` | `padded`
`static EncryptionAlgorithm` | `RC2_CBC`
`static EncryptionAlgorithm` | `RC4`

Fields inherited from class org.mozilla.jss.crypto.Algorithm
`ANSI_X9_ALGORITHM, CKM_DES_CBC_PAD, CKM_DES_KEY_GEN, CKM_DES3_CBC_PAD, CKM_DES3_ECB, CKM_DES3_KEY_GEN, CKM_DSA_KEY_PAIR_GEN, CKM_PBA_SHA1_WITH_SHA1_HMAC, CKM_RC4_KEY_GEN, CKM_RSA_PKCS_KEY_PAIR_GEN, CKM_SHA_1_HMAC, name, oid, oidIndex, parameterClass, SEC_OID_ANSIX9_DSA_SIGNATURE, SEC_OID_ANSIX9_DSA_SIGNATURE_WITH_SHA1_DIGEST, SEC_OID_DES_CBC, SEC_OID_DES_ECB, SEC_OID_DES_EDE3_CBC, SEC_OID_MD2, SEC_OID_MD5, SEC_OID_PKCS1_MD2_WITH_RSA_ENCRYPTION, SEC_OID_PKCS1_MD5_WITH_RSA_ENCRYPTION, SEC_OID_PKCS1_RSA_ENCRYPTION, SEC_OID_PKCS1_SHA1_WITH_RSA_ENCRYPTION, SEC_OID_PKCS12_V2_PBE_WITH_SHA1_AND_128_BIT_RC2_CBC, SEC_OID_PKCS12_V2_PBE_WITH_SHA1_AND_128_BIT_RC4, SEC_OID_PKCS12_V2_PBE_WITH_SHA1_AND_3KEY_TRIPLE_DES_CBC, SEC_OID_PKCS12_V2_PBE_WITH_SHA1_AND_40_BIT_RC2_CBC, SEC_OID_PKCS12_V2_PBE_WITH_SHA1_AND_40_BIT_RC4, SEC_OID_PKCS5_PBE_WITH_MD2_AND_DES_CBC, SEC_OID_PKCS5_PBE_WITH_MD5_AND_DES_CBC, SEC_OID_PKCS5_PBE_WITH_SHA1_AND_DES_CBC, SEC_OID_RC2_CBC, SEC_OID_RC4, SEC_OID_SHA1`

Constructor Summary
`protected` | `EncryptionAlgorithm(int oidTag, java.lang.String name, java.lang.Class paramClass, int blockSize, boolean padded, OBJECT_IDENTIFIER oid)`

Method Summary
`static EncryptionAlgorithm` | `fromOID(OBJECT_IDENTIFIER oid)`
`int` | `getBlockSize()` The blocksize of the algorithm in bytes.
`int` | `getIVLength()` Returns the number of bytes that this algorithm expects in its initialization vector.
`boolean` | `isPadded()` Returns `true` if this algorithm performs padding.

Methods inherited from class org.mozilla.jss.crypto.Algorithm
`getParameterClass, toOID, toString`

Methods inherited from class java.lang.Object
`, clone, equals, finalize, getClass, hashCode, notify, notifyAll, registerNatives, wait, wait, wait`

Field Detail

### blockSize

    private int blockSize

### padded

    private boolean padded

### oidMap

    private static java.util.Hashtable oidMap

### RC4

    public static final EncryptionAlgorithm RC4

### DES_ECB

    public static final EncryptionAlgorithm DES_ECB

### DES_CBC

    public static final EncryptionAlgorithm DES_CBC

### DES_CBC_PAD

    public static final EncryptionAlgorithm DES_CBC_PAD

### DES3_ECB

    public static final EncryptionAlgorithm DES3_ECB

### DES3_CBC

    public static final EncryptionAlgorithm DES3_CBC

### DES3_CBC_PAD

    public static final EncryptionAlgorithm DES3_CBC_PAD

### RC2_CBC

    public static final EncryptionAlgorithm RC2_CBC

Constructor Detail

### EncryptionAlgorithm

    protected EncryptionAlgorithm(int oidTag,
                                  java.lang.String name,
                                  java.lang.Class paramClass,
                                  int blockSize,
                                  boolean padded,
                                  OBJECT_IDENTIFIER oid)

Method Detail

### fromOID

    public static EncryptionAlgorithm fromOID(OBJECT_IDENTIFIER oid)
                                       throws java.security.NoSuchAlgorithmException

### getBlockSize

    public int getBlockSize()

  The blocksize of the algorithm in bytes. Stream algorithms (such as RC4) have a blocksize of 1.

### isPadded

    public boolean isPadded()

  Returns `true` if this algorithm performs padding.

### getIVLength

    public int getIVLength()

  Returns the number of bytes that this algorithm expects in its initialization vector.
  Returns:
    The size in bytes of the IV for this algorithm. A size of 0 means this algorithm does not take an IV.

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