public class SRP6Client
extends java.lang.Object
Modifier and Type | Field | Description |
---|---|---|
protected java.math.BigInteger |
a |
|
protected java.math.BigInteger |
A |
|
protected java.math.BigInteger |
B |
|
protected Digest |
digest |
|
protected java.math.BigInteger |
g |
|
protected java.math.BigInteger |
Key |
|
protected java.math.BigInteger |
M1 |
|
protected java.math.BigInteger |
M2 |
|
protected java.math.BigInteger |
N |
|
protected java.security.SecureRandom |
random |
|
protected java.math.BigInteger |
S |
|
protected java.math.BigInteger |
u |
|
protected java.math.BigInteger |
x |
Constructor | Description |
---|---|
SRP6Client() |
Modifier and Type | Method | Description |
---|---|---|
java.math.BigInteger |
calculateClientEvidenceMessage() |
Computes the client evidence message M1 using the previously received values.
|
java.math.BigInteger |
calculateSecret(java.math.BigInteger serverB) |
Generates the secret S given the server's credentials
|
java.math.BigInteger |
calculateSessionKey() |
Computes the final session key as a result of the SRP successful mutual authentication
To be called after verifying the server evidence message M2.
|
java.math.BigInteger |
generateClientCredentials(byte[] salt,
byte[] identity,
byte[] password) |
Generates client's credentials given the client's salt, identity and password
|
void |
init(java.math.BigInteger N,
java.math.BigInteger g,
Digest digest,
java.security.SecureRandom random) |
Initialises the client to begin new authentication attempt
|
void |
init(SRP6GroupParameters group,
Digest digest,
java.security.SecureRandom random) |
|
protected java.math.BigInteger |
selectPrivateValue() |
|
boolean |
verifyServerEvidenceMessage(java.math.BigInteger serverM2) |
Authenticates the server evidence message M2 received and saves it only if correct.
|
protected java.math.BigInteger N
protected java.math.BigInteger g
protected java.math.BigInteger a
protected java.math.BigInteger A
protected java.math.BigInteger B
protected java.math.BigInteger x
protected java.math.BigInteger u
protected java.math.BigInteger S
protected java.math.BigInteger M1
protected java.math.BigInteger M2
protected java.math.BigInteger Key
protected Digest digest
protected java.security.SecureRandom random
public void init(java.math.BigInteger N, java.math.BigInteger g, Digest digest, java.security.SecureRandom random)
N
- The safe prime associated with the client's verifierg
- The group parameter associated with the client's verifierdigest
- The digest algorithm associated with the client's verifierrandom
- For key generationpublic void init(SRP6GroupParameters group, Digest digest, java.security.SecureRandom random)
public java.math.BigInteger generateClientCredentials(byte[] salt, byte[] identity, byte[] password)
salt
- The salt used in the client's verifier.identity
- The user's identity (eg. username)password
- The user's passwordpublic java.math.BigInteger calculateSecret(java.math.BigInteger serverB) throws CryptoException
serverB
- The server's credentialsCryptoException
- If server's credentials are invalidprotected java.math.BigInteger selectPrivateValue()
public java.math.BigInteger calculateClientEvidenceMessage() throws CryptoException
CryptoException
public boolean verifyServerEvidenceMessage(java.math.BigInteger serverM2) throws CryptoException
serverM2
- the server side generated evidence messageCryptoException
public java.math.BigInteger calculateSessionKey() throws CryptoException
CryptoException