TLSKeyMaterialSpec (Bouncy Castle Library 1.60 API Specification)

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java.lang.Object
- org.bouncycastle.jcajce.spec.TLSKeyMaterialSpec

All Implemented Interfaces:

java.security.spec.KeySpec
```
public class TLSKeyMaterialSpec
extends java.lang.Object
implements java.security.spec.KeySpec
```
Key Spec class for generating TLS key/iv material.

Field Summary

Fields
Modifier and Type Field Description

static java.lang.String KEY_EXPANSION

static java.lang.String MASTER_SECRET

Constructor Summary

Constructors
Constructor	Description
`TLSKeyMaterialSpec(byte[] secret, java.lang.String label, int length, byte[]... seedMaterial)`	Constructor specifying the basic parameters for a TLS KDF

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.lang.String`	`getLabel()`	Return the label associated with this spec.
`int`	`getLength()`	Return the number of bytes of key material to be generated for this spec.
`byte[]`	`getSecret()`	Return the secret associated with this spec.
`byte[]`	`getSeed()`	Return the full seed for the spec.

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

- Field Detail
  - MASTER_SECRET
```
public static final java.lang.String MASTER_SECRET
```
    See Also:
    
    Constant Field Values
  - KEY_EXPANSION
```
public static final java.lang.String KEY_EXPANSION
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - TLSKeyMaterialSpec
```
public TLSKeyMaterialSpec(byte[] secret,
                          java.lang.String label,
                          int length,
                          byte[]... seedMaterial)
```
    Constructor specifying the basic parameters for a TLS KDF
    
    Parameters:
    
    secret - secret to use
    
    label - e.g. 'master secret', or 'key expansion'
    
    length - number of bytes of material to be generated
    
    seedMaterial - array of seed material inputs (to be concatenated together)
- Method Detail
  - getLabel
```
public java.lang.String getLabel()
```
    Return the label associated with this spec.
    
    Returns:
    
    the label to be used with the TLS KDF.
  - getLength
```
public int getLength()
```
    Return the number of bytes of key material to be generated for this spec.
    
    Returns:
    
    the length in bytes of the result.
  - getSecret
```
public byte[] getSecret()
```
    Return the secret associated with this spec.
    
    Returns:
    
    a copy of the secret.
  - getSeed
```
public byte[] getSeed()
```
    Return the full seed for the spec.
    
    Returns:
    
    a copy of the seed.

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Bouncy Castle Cryptography Library 1.60

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