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## org.bouncycastle.openpgp
Class PGPSignature

    java.lang.Object
      org.bouncycastle.openpgp.PGPSignature

    public class PGPSignature

extends java.lang.Object

A PGP signature object.

Field Summary
`static int` | `BINARY_DOCUMENT`
`static int` | `CANONICAL_TEXT_DOCUMENT`
`static int` | `CASUAL_CERTIFICATION`
`static int` | `CERTIFICATION_REVOCATION`
`static int` | `DEFAULT_CERTIFICATION`
`static int` | `DIRECT_KEY`
`static int` | `KEY_REVOCATION`
`static int` | `NO_CERTIFICATION`
`static int` | `POSITIVE_CERTIFICATION`
`static int` | `PRIMARYKEY_BINDING`
`static int` | `STAND_ALONE`
`static int` | `SUBKEY_BINDING`
`static int` | `SUBKEY_REVOCATION`
`static int` | `TIMESTAMP`

Method Summary
`void` | `encode(java.io.OutputStream outStream)`
`java.util.Date` | `getCreationTime()` Return the creation time of the signature.
`byte[]` | `getEncoded()`
`int` | `getHashAlgorithm()` Return the hash algorithm associated with this signature.
`PGPSignatureSubpacketVector` | `getHashedSubPackets()`
`int` | `getKeyAlgorithm()` Return the key algorithm associated with this signature.
`long` | `getKeyID()` Return the id of the key that created the signature.
`byte[]` | `getSignature()`
`byte[]` | `getSignatureTrailer()`
`int` | `getSignatureType()`
`PGPSignatureSubpacketVector` | `getUnhashedSubPackets()`
`int` | `getVersion()` Return the OpenPGP version number for this signature.
`boolean` | `hasSubpackets()` Return true if the signature has either hashed or unhashed subpackets.
`void` | `initVerify(PGPPublicKey pubKey, java.security.Provider provider)`
`void` | `initVerify(PGPPublicKey pubKey, java.lang.String provider)`
`void` | `update(byte b)`
`void` | `update(byte[] bytes)`
`void` | `update(byte[] bytes, int off, int length)`
`boolean` | `verify()`
`boolean` | `verifyCertification(PGPPublicKey pubKey)` Verify a key certification, such as a revocation, for the passed in key.
`boolean` | `verifyCertification(PGPPublicKey masterKey, PGPPublicKey pubKey)` Verify a certification for the passed in key against the passed in master key.
`boolean` | `verifyCertification(PGPUserAttributeSubpacketVector userAttributes, PGPPublicKey key)` Verify the signature as certifying the passed in public key as associated with the passed in user attributes.
`boolean` | `verifyCertification(java.lang.String id, PGPPublicKey key)` Verify the signature as certifying the passed in public key as associated with the passed in id.

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

Field Detail

### BINARY_DOCUMENT

    public static final int BINARY_DOCUMENT

See Also:
  Constant Field Values

### CANONICAL_TEXT_DOCUMENT

    public static final int CANONICAL_TEXT_DOCUMENT

See Also:
  Constant Field Values

### STAND_ALONE

    public static final int STAND_ALONE

See Also:
  Constant Field Values

### DEFAULT_CERTIFICATION

    public static final int DEFAULT_CERTIFICATION

See Also:
  Constant Field Values

### NO_CERTIFICATION

    public static final int NO_CERTIFICATION

See Also:
  Constant Field Values

### CASUAL_CERTIFICATION

    public static final int CASUAL_CERTIFICATION

See Also:
  Constant Field Values

### POSITIVE_CERTIFICATION

    public static final int POSITIVE_CERTIFICATION

See Also:
  Constant Field Values

### SUBKEY_BINDING

    public static final int SUBKEY_BINDING

See Also:
  Constant Field Values

### PRIMARYKEY_BINDING

    public static final int PRIMARYKEY_BINDING

See Also:
  Constant Field Values

### DIRECT_KEY

    public static final int DIRECT_KEY

See Also:
  Constant Field Values

### KEY_REVOCATION

    public static final int KEY_REVOCATION

See Also:
  Constant Field Values

### SUBKEY_REVOCATION

    public static final int SUBKEY_REVOCATION

See Also:
  Constant Field Values

### CERTIFICATION_REVOCATION

    public static final int CERTIFICATION_REVOCATION

See Also:
  Constant Field Values

### TIMESTAMP

    public static final int TIMESTAMP

See Also:
  Constant Field Values

Method Detail

### getVersion

    public int getVersion()

  Return the OpenPGP version number for this signature.

  Returns:
    signature version number.

### getKeyAlgorithm

    public int getKeyAlgorithm()

  Return the key algorithm associated with this signature.

  Returns:
    signature key algorithm.

### getHashAlgorithm

    public int getHashAlgorithm()

  Return the hash algorithm associated with this signature.

  Returns:
    signature hash algorithm.

### initVerify

    public void initVerify(PGPPublicKey pubKey,
                           java.lang.String provider)
                    throws java.security.NoSuchProviderException,
                           PGPException

  Throws:
    `java.security.NoSuchProviderException`
    `PGPException`

### initVerify

    public void initVerify(PGPPublicKey pubKey,
                           java.security.Provider provider)
                    throws PGPException

  Throws:
    `PGPException`

### update

    public void update(byte b)
                throws java.security.SignatureException

  Throws:
    `java.security.SignatureException`

### update

    public void update(byte[] bytes)
                throws java.security.SignatureException

  Throws:
    `java.security.SignatureException`

### update

    public void update(byte[] bytes,
                       int off,
                       int length)
                throws java.security.SignatureException

  Throws:
    `java.security.SignatureException`

### verify

    public boolean verify()
                   throws PGPException,
                          java.security.SignatureException

  Throws:
    `PGPException`
    `java.security.SignatureException`

### verifyCertification

    public boolean verifyCertification(PGPUserAttributeSubpacketVector userAttributes,
                                       PGPPublicKey key)
                                throws PGPException,
                                       java.security.SignatureException

  Verify the signature as certifying the passed in public key as associated with the passed in user attributes.

  Parameters:
    `userAttributes` - user attributes the key was stored under
    `key` - the key to be verified.
  Returns:
    true if the signature matches, false otherwise.
  Throws:
    `PGPException`
    `java.security.SignatureException`

### verifyCertification

    public boolean verifyCertification(java.lang.String id,
                                       PGPPublicKey key)
                                throws PGPException,
                                       java.security.SignatureException

  Verify the signature as certifying the passed in public key as associated with the passed in id.

  Parameters:
    `id` - id the key was stored under
    `key` - the key to be verified.
  Returns:
    true if the signature matches, false otherwise.
  Throws:
    `PGPException`
    `java.security.SignatureException`

### verifyCertification

    public boolean verifyCertification(PGPPublicKey masterKey,
                                       PGPPublicKey pubKey)
                                throws java.security.SignatureException,
                                       PGPException

  Verify a certification for the passed in key against the passed in master key.

  Parameters:
    `masterKey` - the key we are verifying against.
    `pubKey` - the key we are verifying.
  Returns:
    true if the certification is valid, false otherwise.
  Throws:
    `java.security.SignatureException`
    `PGPException`

### verifyCertification

    public boolean verifyCertification(PGPPublicKey pubKey)
                                throws java.security.SignatureException,
                                       PGPException

  Verify a key certification, such as a revocation, for the passed in key.

  Parameters:
    `pubKey` - the key we are checking.
  Returns:
    true if the certification is valid, false otherwise.
  Throws:
    `java.security.SignatureException`
    `PGPException`

### getSignatureType

    public int getSignatureType()

### getKeyID

    public long getKeyID()

  Return the id of the key that created the signature.

  Returns:
    keyID of the signatures corresponding key.

### getCreationTime

    public java.util.Date getCreationTime()

  Return the creation time of the signature.

  Returns:
    the signature creation time.

### getSignatureTrailer

    public byte[] getSignatureTrailer()

### hasSubpackets

    public boolean hasSubpackets()

  Return true if the signature has either hashed or unhashed subpackets.

  Returns:
    true if either hashed or unhashed subpackets are present, false otherwise.

### getHashedSubPackets

    public PGPSignatureSubpacketVector getHashedSubPackets()

### getUnhashedSubPackets

    public PGPSignatureSubpacketVector getUnhashedSubPackets()

### getSignature

    public byte[] getSignature()
                        throws PGPException

  Throws:
    `PGPException`

### getEncoded

    public byte[] getEncoded()
                      throws java.io.IOException

  Throws:
    `java.io.IOException`

### encode

    public void encode(java.io.OutputStream outStream)
                throws java.io.IOException

  Throws:
    `java.io.IOException`

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