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## org.bouncycastle.openpgp
Class PGPSecretKeyRingCollection

    java.lang.Object
      org.bouncycastle.openpgp.PGPSecretKeyRingCollection

    public class PGPSecretKeyRingCollection

extends java.lang.Object

Often a PGP key ring file is made up of a succession of master/sub-key key rings. If you want to read an entire secret key file in one hit this is the class for you.

Constructor Summary
`PGPSecretKeyRingCollection(byte[] encoding)`
`PGPSecretKeyRingCollection(java.util.Collection collection)`
`PGPSecretKeyRingCollection(java.io.InputStream in)` Build a PGPSecretKeyRingCollection from the passed in input stream.

Method Summary
`static PGPSecretKeyRingCollection` | `addSecretKeyRing(PGPSecretKeyRingCollection ringCollection, PGPSecretKeyRing secretKeyRing)` Return a new collection object containing the contents of the passed in collection and the passed in secret key ring.
`boolean` | `contains(long keyID)` Return true if a key matching the passed in key ID is present, false otherwise.
`void` | `encode(java.io.OutputStream outStream)`
`byte[]` | `getEncoded()`
`java.util.Iterator` | `getKeyRings()` return the secret key rings making up this collection.
`java.util.Iterator` | `getKeyRings(java.lang.String userID)` Return an iterator of the key rings associated with the passed in userID.
`java.util.Iterator` | `getKeyRings(java.lang.String userID, boolean matchPartial)` Return an iterator of the key rings associated with the passed in userID.
`java.util.Iterator` | `getKeyRings(java.lang.String userID, boolean matchPartial, boolean ignoreCase)` Return an iterator of the key rings associated with the passed in userID.
`PGPSecretKey` | `getSecretKey(long keyID)` Return the PGP secret key associated with the given key id.
`PGPSecretKeyRing` | `getSecretKeyRing(long keyID)` Return the secret key ring which contains the key referred to by keyID.
`static PGPSecretKeyRingCollection` | `removeSecretKeyRing(PGPSecretKeyRingCollection ringCollection, PGPSecretKeyRing secretKeyRing)` Return a new collection object containing the contents of this collection with the passed in secret key ring removed.
`int` | `size()` Return the number of rings in this collection.

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

Constructor Detail

### PGPSecretKeyRingCollection

    public PGPSecretKeyRingCollection(byte[] encoding)
                               throws java.io.IOException,
                                      PGPException

Throws:
  `java.io.IOException`
  `PGPException`

### PGPSecretKeyRingCollection

    public PGPSecretKeyRingCollection(java.io.InputStream in)
                               throws java.io.IOException,
                                      PGPException

  Build a PGPSecretKeyRingCollection from the passed in input stream.

  Parameters:
    `in` - input stream containing data
  Throws:
    `java.io.IOException` - if a problem parsinh the base stream occurs
    `PGPException` - if an object is encountered which isn't a PGPSecretKeyRing

### PGPSecretKeyRingCollection

    public PGPSecretKeyRingCollection(java.util.Collection collection)
                               throws java.io.IOException,
                                      PGPException

Throws:
  `java.io.IOException`
  `PGPException`

Method Detail

### size

    public int size()

  Return the number of rings in this collection.

  Returns:
    size of the collection

### getKeyRings

    public java.util.Iterator getKeyRings()

  return the secret key rings making up this collection.

### getKeyRings

    public java.util.Iterator getKeyRings(java.lang.String userID)
                                   throws PGPException

  Return an iterator of the key rings associated with the passed in userID.

  Parameters:
    `userID` - the user ID to be matched.
  Returns:
    an iterator (possibly empty) of key rings which matched.
  Throws:
    `PGPException`

### getKeyRings

    public java.util.Iterator getKeyRings(java.lang.String userID,
                                          boolean matchPartial)
                                   throws PGPException

  Return an iterator of the key rings associated with the passed in userID.

  Parameters:
    `userID` - the user ID to be matched.
    `matchPartial` - if true userID need only be a substring of an actual ID string to match.
  Returns:
    an iterator (possibly empty) of key rings which matched.
  Throws:
    `PGPException`

### getKeyRings

    public java.util.Iterator getKeyRings(java.lang.String userID,
                                          boolean matchPartial,
                                          boolean ignoreCase)
                                   throws PGPException

  Return an iterator of the key rings associated with the passed in userID.

  Parameters:
    `userID` - the user ID to be matched.
    `matchPartial` - if true userID need only be a substring of an actual ID string to match.
    `ignoreCase` - if true case is ignored in user ID comparisons.
  Returns:
    an iterator (possibly empty) of key rings which matched.
  Throws:
    `PGPException`

### getSecretKey

    public PGPSecretKey getSecretKey(long keyID)
                              throws PGPException

  Return the PGP secret key associated with the given key id.

  Parameters:
    `keyID` -
  Returns:
    the secret key
  Throws:
    `PGPException`

### getSecretKeyRing

    public PGPSecretKeyRing getSecretKeyRing(long keyID)
                                      throws PGPException

  Return the secret key ring which contains the key referred to by keyID.

  Parameters:
    `keyID` -
  Returns:
    the secret key ring
  Throws:
    `PGPException`

### contains

    public boolean contains(long keyID)
                     throws PGPException

  Return true if a key matching the passed in key ID is present, false otherwise.

  Parameters:
    `keyID` - key ID to look for.
  Returns:
    true if keyID present, false otherwise.
  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`

### addSecretKeyRing

    public static PGPSecretKeyRingCollection addSecretKeyRing(PGPSecretKeyRingCollection ringCollection,
                                                              PGPSecretKeyRing secretKeyRing)

  Return a new collection object containing the contents of the passed in collection and the passed in secret key ring.

  Parameters:
    `ringCollection` - the collection the ring to be added to.
    `secretKeyRing` - the key ring to be added.
  Returns:
    a new collection merging the current one with the passed in ring.
  Throws:
    `java.lang.IllegalArgumentException` - if the keyID for the passed in ring is already present.

### removeSecretKeyRing

    public static PGPSecretKeyRingCollection removeSecretKeyRing(PGPSecretKeyRingCollection ringCollection,
                                                                 PGPSecretKeyRing secretKeyRing)

  Return a new collection object containing the contents of this collection with the passed in secret key ring removed.

  Parameters:
    `ringCollection` - the collection the ring to be removed from.
    `secretKeyRing` - the key ring to be removed.
  Returns:
    a new collection merging the current one with the passed in ring.
  Throws:
    `java.lang.IllegalArgumentException` - if the keyID for the passed in ring is not present.

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