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java.lang.Object org.bouncycastle.crypto.PBEParametersGenerator org.bouncycastle.jce.provider.OldPKCS12ParametersGenerator
class OldPKCS12ParametersGenerator
Generator for PBE derived keys and ivs as defined by PKCS 12 V1.0, with a bug affecting 180 bit plus keys - this class is only here to allow smooth migration of the version 0 keystore to version 1. Don't use it (it won't be staying around).
The document this implementation is based on can be found at RSA's PKCS12 Page
Field Summary | |
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private Digest |
digest
|
static int |
IV_MATERIAL
|
static int |
KEY_MATERIAL
|
static int |
MAC_MATERIAL
|
private int |
u
|
private int |
v
|
Fields inherited from class org.bouncycastle.crypto.PBEParametersGenerator |
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iterationCount, password, salt |
Constructor Summary | |
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OldPKCS12ParametersGenerator(Digest digest)
Construct a PKCS 12 Parameters generator. |
Method Summary | |
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private void |
adjust(byte[] a,
int aOff,
byte[] b)
add a + b + 1, returning the result in a. |
private byte[] |
generateDerivedKey(int idByte,
int n)
generation of a derived key ala PKCS12 V1.0. |
CipherParameters |
generateDerivedMacParameters(int keySize)
Generate a key parameter for use with a MAC derived from the password, salt, and iteration count we are currently initialised with. |
CipherParameters |
generateDerivedParameters(int keySize)
Generate a key parameter derived from the password, salt, and iteration count we are currently initialised with. |
CipherParameters |
generateDerivedParameters(int keySize,
int ivSize)
Generate a key with initialisation vector parameter derived from the password, salt, and iteration count we are currently initialised with. |
Methods inherited from class org.bouncycastle.crypto.PBEParametersGenerator |
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getIterationCount, getPassword, getSalt, init, PKCS12PasswordToBytes, PKCS5PasswordToBytes |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static final int KEY_MATERIAL
public static final int IV_MATERIAL
public static final int MAC_MATERIAL
private Digest digest
private int u
private int v
Constructor Detail |
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public OldPKCS12ParametersGenerator(Digest digest)
digest
- the digest to be used as the source of derived keys.
java.lang.IllegalArgumentException
- if an unknown digest is passed in.Method Detail |
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private void adjust(byte[] a, int aOff, byte[] b)
private byte[] generateDerivedKey(int idByte, int n)
public CipherParameters generateDerivedParameters(int keySize)
generateDerivedParameters
in class PBEParametersGenerator
keySize
- the size of the key we want (in bits)
public CipherParameters generateDerivedParameters(int keySize, int ivSize)
generateDerivedParameters
in class PBEParametersGenerator
keySize
- the size of the key we want (in bits)ivSize
- the size of the iv we want (in bits)
public CipherParameters generateDerivedMacParameters(int keySize)
generateDerivedMacParameters
in class PBEParametersGenerator
keySize
- the size of the key we want (in bits)
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