Certificate (I2P Anonymous Network - Java Documentation

java.lang.Object
- net.i2p.data.DataStructureImpl
- - net.i2p.data.Certificate

すべての実装されたインタフェース:

DataStructure

直系の既知のサブクラス:

KeyCertificate
```
public class Certificate
extends DataStructureImpl
```
Defines a certificate that can be attached to various I2P structures, such as RouterIdentity and Destination, allowing routers and clients to help manage denial of service attacks and the network utilization. Certificates can even be defined to include identifiable information signed by some certificate authority, though that use probably isn't appropriate for an anonymous network ;) Todo: Properly support multiple certificates

作成者:

jrandom

関連項目:

直列化された形式

フィールドの概要

フィールド
修飾子とタイプ	フィールド	説明
`protected byte[]`	`_payload`
`protected int`	`_type`
`static int`	`CERTIFICATE_LENGTH_SIGNED_WITH_HASH`
`static int`	`CERTIFICATE_TYPE_HASHCASH`	specifies a Hashcash style certificate
`static int`	`CERTIFICATE_TYPE_HIDDEN`	we should not be used for anything (don't use us in the netDb, in tunnels, or tell others about us)
`static int`	`CERTIFICATE_TYPE_KEY`
`static int`	`CERTIFICATE_TYPE_MULTIPLE`	Contains multiple certs
`static int`	`CERTIFICATE_TYPE_NULL`	Specifies a null certificate type with no payload
`static int`	`CERTIFICATE_TYPE_SIGNED`	Signed with 40-byte Signature and (optional) 32-byte hash
`static Certificate`	`NULL_CERT`

コンストラクタの概要

コンストラクタ
コンストラクタ説明

Certificate()

Certificate(int type, byte[] payload)

コンストラクタ
コンストラクタ	説明
`Certificate()`
`Certificate(int type, byte[] payload)`

メソッドの概要

すべてのメソッド staticメソッドインスタンス・メソッド concreteメソッド
修飾子とタイプ	メソッド	説明
`static Certificate`	`create(byte[] data, int off)`	If null, P256 key, or Ed25519 key cert, return immutable static instance, else create new
`static Certificate`	`create(java.io.InputStream in)`	If null, P256 key, or Ed25519 key cert, return immutable static instance, else create new
`boolean`	`equals(java.lang.Object object)`
`int`	`getCertificateType()`
`byte[]`	`getPayload()`
`int`	`hashCode()`
`int`	`readBytes(byte[] source, int offset)`
`void`	`readBytes(java.io.InputStream in)`	Load up the current object with data from the given stream.
`void`	`setCertificateType(int type)`
`void`	`setPayload(byte[] payload)`
`int`	`size()`
`KeyCertificate`	`toKeyCertificate()`	Up-convert this to a KeyCertificate
`java.lang.String`	`toString()`
`int`	`writeBytes(byte[] target, int offset)`
`void`	`writeBytes(java.io.OutputStream out)`	Write out the data structure to the stream, using the format defined in the I2P data structure specification.

クラスから継承されたメソッド net.i2p.data.DataStructureImpl
calculateHash, fromBase64, fromByteArray, read, toBase64, toByteArray

クラスから継承されたメソッド java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- フィールドの詳細
  - NULL_CERT
```
public static final Certificate NULL_CERT
```
  - _type
```
protected int _type
```
  - _payload
```
protected byte[] _payload
```
  - CERTIFICATE_TYPE_NULL
```
public static final int CERTIFICATE_TYPE_NULL
```
    Specifies a null certificate type with no payload
    
    関連項目:
    
    定数フィールド値
  - CERTIFICATE_TYPE_HASHCASH
```
public static final int CERTIFICATE_TYPE_HASHCASH
```
    specifies a Hashcash style certificate
    
    関連項目:
    
    定数フィールド値
  - CERTIFICATE_TYPE_HIDDEN
```
public static final int CERTIFICATE_TYPE_HIDDEN
```
    we should not be used for anything (don't use us in the netDb, in tunnels, or tell others about us)
    
    関連項目:
    
    定数フィールド値
  - CERTIFICATE_TYPE_SIGNED
```
public static final int CERTIFICATE_TYPE_SIGNED
```
    Signed with 40-byte Signature and (optional) 32-byte hash
    
    関連項目:
    
    定数フィールド値
  - CERTIFICATE_LENGTH_SIGNED_WITH_HASH
```
public static final int CERTIFICATE_LENGTH_SIGNED_WITH_HASH
```
  - CERTIFICATE_TYPE_MULTIPLE
```
public static final int CERTIFICATE_TYPE_MULTIPLE
```
    Contains multiple certs
    
    関連項目:
    
    定数フィールド値
  - CERTIFICATE_TYPE_KEY
```
public static final int CERTIFICATE_TYPE_KEY
```
    導入されたバージョン:
    
    0.9.12
    
    関連項目:
    
    定数フィールド値
- コンストラクタの詳細
  - Certificate
```
public Certificate()
```
  - Certificate
```
public Certificate(int type,
                   byte[] payload)
```
    例外:
    
    java.lang.IllegalArgumentException - if type < 0
- メソッドの詳細
  - create
```
public static Certificate create(byte[] data,
                                 int off)
                          throws DataFormatException
```
    If null, P256 key, or Ed25519 key cert, return immutable static instance, else create new
    
    例外:
    
    DataFormatException - if not enough bytes
    
    導入されたバージョン:
    
    0.8.3
  - create
```
public static Certificate create(java.io.InputStream in)
                          throws DataFormatException,
                                 java.io.IOException
```
    If null, P256 key, or Ed25519 key cert, return immutable static instance, else create new
    
    例外:
    
    DataFormatException
    
    java.io.IOException
    
    導入されたバージョン:
    
    0.8.3
  - getCertificateType
```
public int getCertificateType()
```
  - setCertificateType
```
public void setCertificateType(int type)
```
    例外:
    
    java.lang.IllegalArgumentException - if type < 0
    
    java.lang.IllegalStateException - if already set
  - getPayload
```
public byte[] getPayload()
```
  - setPayload
```
public void setPayload(byte[] payload)
```
    例外:
    
    java.lang.IllegalStateException - if already set
  - readBytes
```
public void readBytes(java.io.InputStream in)
               throws DataFormatException,
                      java.io.IOException
```
    インタフェースからコピーされた説明: DataStructure
    
    Load up the current object with data from the given stream. Data loaded this way must match the I2P data structure specification. Warning - many classes will throw IllegalStateException if data is already set.
    
    パラメータ:
    
    in - stream to read from
    
    例外:
    
    java.lang.IllegalStateException - if already set
    
    DataFormatException - if the data is improperly formatted
    
    java.io.IOException - if there was a problem reading the stream
  - writeBytes
```
public void writeBytes(java.io.OutputStream out)
                throws DataFormatException,
                       java.io.IOException
```
    インタフェースからコピーされた説明: DataStructure
    
    Write out the data structure to the stream, using the format defined in the I2P data structure specification.
    
    パラメータ:
    
    out - stream to write to
    
    例外:
    
    DataFormatException - if the data was incomplete or not yet ready to be written
    
    java.io.IOException - if there was a problem writing to the stream
  - writeBytes
```
public int writeBytes(byte[] target,
                      int offset)
```
    戻り値:
    
    the written length (NOT the new offset)
  - readBytes
```
public int readBytes(byte[] source,
                     int offset)
              throws DataFormatException
```
    例外:
    
    java.lang.IllegalStateException - if already set
    
    DataFormatException
  - size
```
public int size()
```
  - toKeyCertificate
```
public KeyCertificate toKeyCertificate()
                                throws DataFormatException
```
    Up-convert this to a KeyCertificate
    
    例外:
    
    DataFormatException - if cert type != CERTIFICATE_TYPE_KEY
    
    導入されたバージョン:
    
    0.9.12
  - equals
```
public boolean equals(java.lang.Object object)
```
    オーバーライド:
    
    equals クラス内 java.lang.Object
  - hashCode
```
public int hashCode()
```
    オーバーライド:
    
    hashCode クラス内 java.lang.Object
  - toString
```
public java.lang.String toString()
```
    オーバーライド:
    
    toString クラス内 java.lang.Object

クラス Certificate

フィールドの概要

コンストラクタの概要

メソッドの概要

クラスから継承されたメソッド net.i2p.data.DataStructureImpl

クラスから継承されたメソッド java.lang.Object

フィールドの詳細

NULL_CERT

_type

_payload

CERTIFICATE_TYPE_NULL

CERTIFICATE_TYPE_HASHCASH

CERTIFICATE_TYPE_HIDDEN

CERTIFICATE_TYPE_SIGNED

CERTIFICATE_LENGTH_SIGNED_WITH_HASH

CERTIFICATE_TYPE_MULTIPLE

CERTIFICATE_TYPE_KEY

コンストラクタの詳細

Certificate

Certificate

メソッドの詳細

create

create

getCertificateType

setCertificateType

getPayload

setPayload

readBytes

writeBytes

writeBytes

readBytes

size

toKeyCertificate

equals

hashCode

toString