Class LegacyDSASigner
- java.lang.Object
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- java.security.SignatureSpi
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- java.security.Signature
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- org.apache.sshd.contrib.common.signature.LegacyDSASigner
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public class LegacyDSASigner extends java.security.Signature
A special signer for DSA that uses SHA-1 regardless of the key size- See Also:
- SSHD-945 issue
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Field Summary
Fields Modifier and Type Field Description static java.lang.String
LEGACY_SIGNATURE
protected java.security.MessageDigest
md
protected java.security.interfaces.DSAParams
params
protected org.apache.sshd.common.Factory<org.apache.sshd.common.random.Random>
randomFactory
protected java.math.BigInteger
x
protected java.math.BigInteger
y
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Constructor Summary
Constructors Constructor Description LegacyDSASigner(org.apache.sshd.common.Factory<org.apache.sshd.common.random.Random> randomFactory)
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Method Summary
All Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description protected java.lang.Object
engineGetParameter(java.lang.String key)
Deprecated.protected void
engineInitSign(java.security.PrivateKey key)
protected void
engineInitVerify(java.security.PublicKey key)
protected void
engineSetParameter(java.lang.String key, java.lang.Object param)
Deprecated.protected byte[]
engineSign()
protected void
engineUpdate(byte b)
protected void
engineUpdate(byte[] data, int off, int len)
protected void
engineUpdate(java.nio.ByteBuffer b)
protected boolean
engineVerify(byte[] signature)
protected boolean
engineVerify(byte[] signature, int offset, int length)
protected java.math.BigInteger
generateK(java.math.BigInteger q)
protected java.math.BigInteger
generateR(java.math.BigInteger p, java.math.BigInteger q, java.math.BigInteger g, java.math.BigInteger k)
protected java.math.BigInteger
generateS(java.math.BigInteger x, java.math.BigInteger q, java.math.BigInteger r, java.math.BigInteger k)
protected java.math.BigInteger
generateV(java.math.BigInteger y, java.math.BigInteger p, java.math.BigInteger q, java.math.BigInteger g, java.math.BigInteger w, java.math.BigInteger r)
protected java.math.BigInteger
generateW(java.math.BigInteger p, java.math.BigInteger q, java.math.BigInteger g, java.math.BigInteger s)
protected void
initDSAParameters(java.security.interfaces.DSAKey key)
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Methods inherited from class java.security.Signature
clone, getAlgorithm, getInstance, getInstance, getInstance, getParameter, getParameters, getProvider, initSign, initSign, initVerify, initVerify, setParameter, setParameter, sign, sign, toString, update, update, update, update, verify, verify
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Field Detail
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LEGACY_SIGNATURE
public static final java.lang.String LEGACY_SIGNATURE
- See Also:
- Constant Field Values
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md
protected final java.security.MessageDigest md
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randomFactory
protected final org.apache.sshd.common.Factory<org.apache.sshd.common.random.Random> randomFactory
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x
protected java.math.BigInteger x
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y
protected java.math.BigInteger y
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params
protected java.security.interfaces.DSAParams params
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Method Detail
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engineSetParameter
@Deprecated protected void engineSetParameter(java.lang.String key, java.lang.Object param)
Deprecated.- Specified by:
engineSetParameter
in classjava.security.SignatureSpi
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engineGetParameter
@Deprecated protected java.lang.Object engineGetParameter(java.lang.String key)
Deprecated.- Specified by:
engineGetParameter
in classjava.security.SignatureSpi
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initDSAParameters
protected void initDSAParameters(java.security.interfaces.DSAKey key) throws java.security.InvalidKeyException
- Throws:
java.security.InvalidKeyException
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engineInitSign
protected void engineInitSign(java.security.PrivateKey key) throws java.security.InvalidKeyException
- Specified by:
engineInitSign
in classjava.security.SignatureSpi
- Throws:
java.security.InvalidKeyException
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engineSign
protected byte[] engineSign() throws java.security.SignatureException
- Specified by:
engineSign
in classjava.security.SignatureSpi
- Throws:
java.security.SignatureException
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generateK
protected java.math.BigInteger generateK(java.math.BigInteger q)
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generateR
protected java.math.BigInteger generateR(java.math.BigInteger p, java.math.BigInteger q, java.math.BigInteger g, java.math.BigInteger k)
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generateS
protected java.math.BigInteger generateS(java.math.BigInteger x, java.math.BigInteger q, java.math.BigInteger r, java.math.BigInteger k)
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engineInitVerify
protected void engineInitVerify(java.security.PublicKey key) throws java.security.InvalidKeyException
- Specified by:
engineInitVerify
in classjava.security.SignatureSpi
- Throws:
java.security.InvalidKeyException
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engineVerify
protected boolean engineVerify(byte[] signature) throws java.security.SignatureException
- Specified by:
engineVerify
in classjava.security.SignatureSpi
- Throws:
java.security.SignatureException
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engineVerify
protected boolean engineVerify(byte[] signature, int offset, int length) throws java.security.SignatureException
- Overrides:
engineVerify
in classjava.security.SignatureSpi
- Throws:
java.security.SignatureException
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generateW
protected java.math.BigInteger generateW(java.math.BigInteger p, java.math.BigInteger q, java.math.BigInteger g, java.math.BigInteger s)
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generateV
protected java.math.BigInteger generateV(java.math.BigInteger y, java.math.BigInteger p, java.math.BigInteger q, java.math.BigInteger g, java.math.BigInteger w, java.math.BigInteger r)
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engineUpdate
protected void engineUpdate(byte b)
- Specified by:
engineUpdate
in classjava.security.SignatureSpi
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engineUpdate
protected void engineUpdate(byte[] data, int off, int len)
- Specified by:
engineUpdate
in classjava.security.SignatureSpi
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engineUpdate
protected void engineUpdate(java.nio.ByteBuffer b)
- Overrides:
engineUpdate
in classjava.security.SignatureSpi
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