Class PKCS5S2ParametersGenerator
- java.lang.Object
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- com.ongres.scram.common.bouncycastle.pbkdf2.PBEParametersGenerator
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- com.ongres.scram.common.bouncycastle.pbkdf2.PKCS5S2ParametersGenerator
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public class PKCS5S2ParametersGenerator extends PBEParametersGenerator
Generator for PBE derived keys and ivs as defined by PKCS 5 V2.0 Scheme 2. This generator uses a SHA-1 HMac as the calculation function.The document this implementation is based on can be found at RSA's PKCS5 Page
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Field Summary
Fields Modifier and Type Field Description private Mac
hMac
private byte[]
state
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Fields inherited from class com.ongres.scram.common.bouncycastle.pbkdf2.PBEParametersGenerator
iterationCount, password, salt
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Constructor Summary
Constructors Constructor Description PKCS5S2ParametersGenerator(Digest digest)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description private void
F(byte[] S, int c, byte[] iBuf, byte[] out, int outOff)
private byte[]
generateDerivedKey(int dkLen)
CipherParameters
generateDerivedParameters(int keySize)
Generate a key parameter derived from the password, salt, and iteration count we are currently initialised with.-
Methods inherited from class com.ongres.scram.common.bouncycastle.pbkdf2.PBEParametersGenerator
getIterationCount, getPassword, getSalt, init, PKCS5PasswordToUTF8Bytes
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Field Detail
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hMac
private Mac hMac
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state
private byte[] state
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Constructor Detail
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PKCS5S2ParametersGenerator
public PKCS5S2ParametersGenerator(Digest digest)
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Method Detail
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F
private void F(byte[] S, int c, byte[] iBuf, byte[] out, int outOff)
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generateDerivedKey
private byte[] generateDerivedKey(int dkLen)
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generateDerivedParameters
public CipherParameters generateDerivedParameters(int keySize)
Generate a key parameter derived from the password, salt, and iteration count we are currently initialised with.- Specified by:
generateDerivedParameters
in classPBEParametersGenerator
- Parameters:
keySize
- the size of the key we want (in bits)- Returns:
- a KeyParameter object.
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