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## org.mozilla.jss.crypto
Interface CryptoToken

All Known Implementing Classes:
  PK11Token

public interface CryptoToken

A CryptoToken performs cryptographic operations and stores cryptographic items, such as keys and certs. It corresponds to a Cryptographic Service Provider (CSP) in CDSA, and to a PKCS #11 token.

Instances of CryptoToken are obtained from CryptoManager.

See Also:
  `CryptoManager`

Field Summary
`static int` | `EVERY_TIME` Need to provide a password before each crypto operation.
`static int` | `ONE_TIME` Login once, never need to re-enter the password until you log out.
`static int` | `TIMEOUT` Need to re-login after a period of time.

Method Summary
`void` | `changePassword(PasswordCallback oldpw, PasswordCallback newpw)` Change the password of this token.
`SymmetricKey` | `cloneKey(SymmetricKey key)` Deprecated. Use the JCA interface instead (`SecretKeyFactory`)
`boolean` | `doesAlgorithm(Algorithm alg)` Determines whether this token supports the given algorithm.
`boolean` | `equals(java.lang.Object object)` Deep comparison operation.
`java.lang.String` | `generateCertRequest(java.lang.String subject, int keysize, java.lang.String keyType, byte[] P, byte[] Q, byte[] G)` Generates a b64 encoded PKCS10 blob used for making cert request.
`Cipher` | `getCipherContext(EncryptionAlgorithm algorithm)` Deprecated. Use the JCA interface instead (`Cipher`)
`CryptoStore` | `getCryptoStore()` Get the CryptoStore interface to this token's objects.
`JSSMessageDigest` | `getDigestContext(DigestAlgorithm algorithm)` Deprecated. Use the JCA interface instead (`MessageDigest`)
`KeyGenerator` | `getKeyGenerator(KeyGenAlgorithm algorithm)` Deprecated. Use the JCA interface instead (`KeyGenerator`)
`KeyPairGenerator` | `getKeyPairGenerator(KeyPairAlgorithm algorithm)` Deprecated. Use the JCA interface instead (`KeyPairGenerator`)
`KeyWrapper` | `getKeyWrapper(KeyWrapAlgorithm algorithm)` Deprecated. Use the JCA interface instead (`Cipher`)
`int` | `getLoginMode()` Returns the login mode of this token: ONE_TIME, TIMEOUT, or EVERY_TIME.
`int` | `getLoginTimeoutMinutes()` Returns the login timeout period.
`java.lang.String` | `getName()` Obtain the nickname, or label, of this token.
`Signature` | `getSignatureContext(SignatureAlgorithm algorithm)` Deprecated. Use the JCA interface instead (`Signature`)
`void` | `initPassword(PasswordCallback securityOfficerPW, PasswordCallback userPW)` Initialize the password of this token.
`boolean` | `isLoggedIn()` Find out if the token is currently logged in.
`boolean` | `isPresent()` Determines whether this token is currently present.
`void` | `login(PasswordCallback pwcb)` Login to the token.
`void` | `logout()` Logout of the token.
`boolean` | `passwordIsInitialized()` Determine whether the password has been initialized yet.
`void` | `setLoginMode(int mode)` Sets the login mode of this token.
`void` | `setLoginTimeoutMinutes(int timeoutMinutes)` Sets the timeout period for logging in.

Field Detail

### ONE_TIME

    public static final int ONE_TIME

  Login once, never need to re-enter the password until you log out.

  See Also:
    Constant Field Values

### TIMEOUT

    public static final int TIMEOUT

  Need to re-login after a period of time.

  See Also:
    `setLoginTimeoutMinutes(int)`, Constant Field Values

### EVERY_TIME

    public static final int EVERY_TIME

  Need to provide a password before each crypto operation.

  See Also:
    Constant Field Values

Method Detail

### getSignatureContext

    public Signature getSignatureContext(SignatureAlgorithm algorithm)
                                  throws java.security.NoSuchAlgorithmException,
                                         TokenException

  Deprecated. Use the JCA interface instead (`Signature`)

  Creates a Signature object, which can perform signing and signature verification. Signing and verification cryptographic operations will take place on this token. The signing key must be located on this token.

  Parameters:
    `algorithm` - The algorithm used for the signing/verification.
  Throws:
    `java.security.NoSuchAlgorithmException` - If the given algorithm is not supported by this provider.
    `TokenException`

### getDigestContext

    public JSSMessageDigest getDigestContext(DigestAlgorithm algorithm)
                                      throws java.security.NoSuchAlgorithmException,
                                             java.security.DigestException

  Deprecated. Use the JCA interface instead (`MessageDigest`)

  Creates a Digest object. Digesting cryptographic operations will take place on this token.

  Parameters:
    `algorithm` - The algorithm used for digesting.
  Throws:
    `java.security.NoSuchAlgorithmException` - If this provider does not support the given algorithm.
    `java.security.DigestException`

### getCipherContext

    public Cipher getCipherContext(EncryptionAlgorithm algorithm)
                            throws java.security.NoSuchAlgorithmException,
                                   TokenException

  Deprecated. Use the JCA interface instead (`Cipher`)

  Creates a Cipher object, which can be used for encryption and decryption. Cryptographic operations will take place on this token. The keys used in the operations must be located on this token.

  Parameters:
    `algorithm` - The algorithm used for encryption/decryption.
  Throws:
    `java.security.NoSuchAlgorithmException` - If this provider does not support the given algorithm.
    `TokenException`

### getKeyWrapper

    public KeyWrapper getKeyWrapper(KeyWrapAlgorithm algorithm)
                             throws java.security.NoSuchAlgorithmException,
                                    TokenException

  Deprecated. Use the JCA interface instead (`Cipher`)

    `java.security.NoSuchAlgorithmException`
    `TokenException`

### getKeyGenerator

    public KeyGenerator getKeyGenerator(KeyGenAlgorithm algorithm)
                                 throws java.security.NoSuchAlgorithmException,
                                        TokenException

  Deprecated. Use the JCA interface instead (`KeyGenerator`)

  Creates a KeyGenerator object, which can be used to generate symmetric encryption keys. Any keys generated with this KeyGenerator will be generated on this token.

  Parameters:
    `algorithm` - The algorithm that the keys will be used with.
  Throws:
    `java.security.NoSuchAlgorithmException` - If this token does not support the given algorithm.
    `TokenException`

### cloneKey

    public SymmetricKey cloneKey(SymmetricKey key)
                          throws SymmetricKey.NotExtractableException,
                                 java.security.InvalidKeyException,
                                 TokenException

  Deprecated. Use the JCA interface instead (`SecretKeyFactory`)

  Clones a SymmetricKey from a different token onto this token.

  Throws:
    `SymmetricKey.NotExtractableException` - If the key material cannot be extracted from the current token.
    `java.security.InvalidKeyException` - If the owning token cannot process the key to be cloned.
    `TokenException`

### getKeyPairGenerator

    public KeyPairGenerator getKeyPairGenerator(KeyPairAlgorithm algorithm)
                                         throws java.security.NoSuchAlgorithmException,
                                                TokenException

  Deprecated. Use the JCA interface instead (`KeyPairGenerator`)

  Creates a KeyPairGenerator object, which can be used to generate key pairs. Any keypairs generated with this generator will be generated on this token.

  Parameters:
    `algorithm` - The algorithm that the keys will be used with (RSA, DSA, etc.)
  Throws:
    `java.security.NoSuchAlgorithmException` - If this token does not support the given algorithm.
    `TokenException`

### generateCertRequest

    public java.lang.String generateCertRequest(java.lang.String subject,
                                                int keysize,
                                                java.lang.String keyType,
                                                byte[] P,
                                                byte[] Q,
                                                byte[] G)
                                         throws TokenException,
                                                java.security.InvalidParameterException,
                                                PQGParamGenException

  Generates a b64 encoded PKCS10 blob used for making cert request. Begin/End brackets included.

  Parameters:
    `subject` - subject dn of the certificate
    `keysize` - size of the key
    `keyType` - "rsa" or "dsa"
    `P` - The DSA prime parameter
    `Q` - The DSA sub-prime parameter
    `G` - The DSA base parameter
  Returns:
    base64 encoded pkcs10 certificate request with Begin/end brackets
    `TokenException`
    `java.security.InvalidParameterException`
    `PQGParamGenException`

### doesAlgorithm

    public boolean doesAlgorithm(Algorithm alg)

  Determines whether this token supports the given algorithm.

  Parameters:
    `alg` - A JSS algorithm. Note that for Signature, a token may fail to support a specific SignatureAlgorithm (such as RSASignatureWithMD5Digest) even though it does support the generic algorithm (RSASignature). In this case, the signature operation will be performed on that token, but the digest operation will be performed on the internal token.
  Returns:
    true if the token supports the algorithm.

### login

    public void login(PasswordCallback pwcb)
               throws IncorrectPasswordException,
                      TokenException

  Login to the token. If a token is logged in, it will not trigger password callbacks.

  Throws:
    `IncorrectPasswordException` - If the supplied password is incorrect.
    `TokenException`
  See Also:
    `setLoginMode(int)`, `CryptoManager.setPasswordCallback(org.mozilla.jss.util.PasswordCallback)`

### logout

    public void logout()
                throws TokenException

  Logout of the token.

    `TokenException`

### getLoginMode

    public int getLoginMode()
                     throws TokenException

  Returns the login mode of this token: ONE_TIME, TIMEOUT, or EVERY_TIME. The default is ONE_TIME.

  Throws:
    `TokenException` - If an error occurs on the token.
  See Also:
    `getLoginTimeoutMinutes()`

### setLoginMode

    public void setLoginMode(int mode)
                      throws TokenException

  Sets the login mode of this token.

  Parameters:
    `mode` - ONE_TIME, TIMEOUT, or EVERY_TIME
  Throws:
    `TokenException` - If this mode is not supported by this token, or an error occurs on the token.
  See Also:
    `login(org.mozilla.jss.util.PasswordCallback)`, `setLoginTimeoutMinutes(int)`

### getLoginTimeoutMinutes

    public int getLoginTimeoutMinutes()
                               throws TokenException

  Returns the login timeout period. The timeout is only used if the login mode is TIMEOUT.

  Throws:
    `TokenException` - If an error occurs on the token.
  See Also:
    `getLoginMode()`

### setLoginTimeoutMinutes

    public void setLoginTimeoutMinutes(int timeoutMinutes)
                                throws TokenException

  Sets the timeout period for logging in. This will only be used if the login mode is TIMEOUT.

  Throws:
    `TokenException` - If timeouts are not supported by this token, or an error occurs on the token.
  See Also:
    `setLoginMode(int)`

### isLoggedIn

    public boolean isLoggedIn()
                       throws TokenException

  Find out if the token is currently logged in.

    `TokenException`
  See Also:
    `login(org.mozilla.jss.util.PasswordCallback)`, `logout()`

### initPassword

    public void initPassword(PasswordCallback securityOfficerPW,
                             PasswordCallback userPW)
                      throws IncorrectPasswordException,
                             AlreadyInitializedException,
                             TokenException

  Initialize the password of this token.

  Parameters:
    `securityOfficerPW` - A callback to obtain the password of the SecurityOfficer. Pass in a NullPasswordCallback if there is no security officer password. Must not be null.
    `userPW` - A callback to obtain the new password for this token. Must not be null.
  Throws:
    `IncorrectPasswordException` - If the supplied security officer password is incorrect.
    `AlreadyInitializedException` - If the token only allows one password initialization, and it has already occurred.
    `TokenException` - If an error occurs on the token.

### passwordIsInitialized

    public boolean passwordIsInitialized()
                                  throws TokenException

  Determine whether the password has been initialized yet. Some tokens (such as the Netscape Internal Key Token) don't allow initializing the PIN more than once.

  Throws:
    `TokenException` - If an error occurs on the token.

### changePassword

    public void changePassword(PasswordCallback oldpw,
                               PasswordCallback newpw)
                        throws IncorrectPasswordException,
                               TokenException

  Change the password of this token.

  Parameters:
    `oldpw` - A callback (which could be just a Password) to retrieve the current password.
    `newpw` - A callback (which could be just a Password) to retrieve the new password.
  Throws:
    `IncorrectPasswordException` - If the supplied old password is incorrect.
    `TokenException`

### getName

    public java.lang.String getName()
                             throws TokenException

  Obtain the nickname, or label, of this token.

  Throws:
    `TokenException` - If an error occurs on the token.

### getCryptoStore

    public CryptoStore getCryptoStore()

  Get the CryptoStore interface to this token's objects.

### equals

    public boolean equals(java.lang.Object object)

  Deep comparison operation. Use this, rather than ==, to determine whether two CryptoTokens are the same.

  Overrides:
    `equals` in class `java.lang.Object`

### isPresent

    public boolean isPresent()

  Determines whether this token is currently present. This could return false if the token is a smart card that was removed from its slot.

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