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## net.i2p.data
Class KeysAndCert

    java.lang.Object
      net.i2p.data.DataStructureImpl
          net.i2p.data.KeysAndCert

All Implemented Interfaces:
  DataStructure

Direct Known Subclasses:
  Destination, RouterIdentity

    public class KeysAndCert

extends DataStructureImpl

KeysAndCert has a public key, a signing key, and a certificate. In that order. We also store a cached Hash. Implemented in 0.8.2 and retrofitted over Destination and RouterIdentity. There's actually no difference between the two of them.

Since:
  0.8.2
Author:
  zzz

Field Summary
`protected Hash` | `__calculatedHash`
`protected Certificate` | `_certificate`
`protected PublicKey` | `_publicKey`
`protected SigningPublicKey` | `_signingKey`

Constructor Summary
`KeysAndCert()`

Method Summary
`Hash` | `calculateHash()` Calculate the SHA256 value of this object (useful for a few scenarios)
`boolean` | `equals(Object object)`
`Certificate` | `getCertificate()`
`Hash` | `getHash()`
`PublicKey` | `getPublicKey()`
`SigningPublicKey` | `getSigningPublicKey()`
`int` | `hashCode()` the public key has enough randomness in it to use it by itself for speed
`void` | `readBytes(InputStream in)` Load up the current object with data from the given stream.
`void` | `setCertificate(Certificate cert)`
`void` | `setPublicKey(PublicKey key)`
`void` | `setSigningPublicKey(SigningPublicKey key)`
`String` | `toString()`
`void` | `writeBytes(OutputStream out)` Write out the data structure to the stream, using the format defined in the I2P data structure specification.

Methods inherited from class net.i2p.data.DataStructureImpl
`fromBase64, fromByteArray, read, toBase64, toByteArray`

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

Field Detail

### _publicKey

    protected PublicKey _publicKey

### _signingKey

    protected SigningPublicKey _signingKey

### _certificate

    protected Certificate _certificate

### __calculatedHash

    protected Hash __calculatedHash

Constructor Detail

### KeysAndCert

    public KeysAndCert()

Method Detail

### getCertificate

    public Certificate getCertificate()

### setCertificate

    public void setCertificate(Certificate cert)

### getPublicKey

    public PublicKey getPublicKey()

### setPublicKey

    public void setPublicKey(PublicKey key)

### getSigningPublicKey

    public SigningPublicKey getSigningPublicKey()

### setSigningPublicKey

    public void setSigningPublicKey(SigningPublicKey key)

### readBytes

    public void readBytes(InputStream in)
                   throws DataFormatException,
                          IOException

  Description copied from interface: `DataStructure`
  Load up the current object with data from the given stream. Data loaded this way must match the I2P data structure specification.

  Parameters:
    `in` - stream to read from
  Throws:
    `DataFormatException` - if the data is improperly formatted
    `IOException` - if there was a problem reading the stream

### writeBytes

    public void writeBytes(OutputStream out)
                    throws DataFormatException,
                           IOException

  Description copied from interface: `DataStructure`
  Write out the data structure to the stream, using the format defined in the I2P data structure specification.

  Parameters:
    `out` - stream to write to
  Throws:
    `DataFormatException` - if the data was incomplete or not yet ready to be written
    `IOException` - if there was a problem writing to the stream

### equals

    public boolean equals(Object object)

  Overrides:
    `equals` in class `Object`

### hashCode

    public int hashCode()

  the public key has enough randomness in it to use it by itself for speed

  Overrides:
    `hashCode` in class `Object`

### toString

    public String toString()

  Overrides:
    `toString` in class `Object`

### calculateHash

    public Hash calculateHash()

  Description copied from interface: `DataStructure`
  Calculate the SHA256 value of this object (useful for a few scenarios)

  Specified by:
    `calculateHash` in interface `DataStructure`
  Overrides:
    `calculateHash` in class `DataStructureImpl`
  Returns:
    SHA256 hash, or null if there were problems (data format or io errors)

### getHash

    public Hash getHash()

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