Package org.kapott.cryptalgs
Class PKCS1_PSS
- java.lang.Object
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- java.security.SignatureSpi
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- org.kapott.cryptalgs.PKCS1_PSS
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public class PKCS1_PSS extends java.security.SignatureSpi
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Field Summary
Fields Modifier and Type Field Description private SignatureParamSpec
param
private java.io.ByteArrayOutputStream
plainmsg
private java.security.PrivateKey
privKey
private java.security.interfaces.RSAPublicKey
pubKey
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Constructor Summary
Constructors Constructor Description PKCS1_PSS()
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description static int
calculateEMBitLen(java.math.BigInteger modulus)
private static byte[]
concat(byte[] x1, byte[] x2)
static byte[]
emsa_pss_encode(SignatureParamSpec spec, byte[] msg, int emBits)
static boolean
emsa_pss_verify(SignatureParamSpec spec, byte[] msg, byte[] EM, int emBits)
protected java.lang.Object
engineGetParameter(java.lang.String parameter)
Deprecated.protected void
engineInitSign(java.security.PrivateKey privateKey)
protected void
engineInitVerify(java.security.PublicKey publicKey)
protected void
engineSetParameter(java.lang.String param1, java.lang.Object value)
Deprecated.protected void
engineSetParameter(java.security.spec.AlgorithmParameterSpec param1)
protected byte[]
engineSign()
protected int
engineSign(byte[] output, int offset, int len)
protected void
engineUpdate(byte b)
protected void
engineUpdate(byte[] b, int offset, int length)
protected boolean
engineVerify(byte[] sig)
static java.security.MessageDigest
getMessageDigest(SignatureParamSpec spec)
private static byte[]
hash(SignatureParamSpec spec, byte[] data)
private static byte[]
i2os(java.math.BigInteger x, int outLen)
private static byte[]
mgf1(SignatureParamSpec spec, byte[] mgfSeed, int maskLen)
private static java.math.BigInteger
os2i(byte[] bytes)
private byte[]
pss_sign(java.security.PrivateKey key, byte[] msg)
private boolean
pss_verify(java.security.interfaces.RSAPublicKey key, byte[] msg, byte[] S)
private static byte[]
random_os(int len)
private static java.math.BigInteger
sp1(java.security.PrivateKey key, java.math.BigInteger m)
private static java.math.BigInteger
vp1(java.security.interfaces.RSAPublicKey key, java.math.BigInteger s)
private static byte[]
xor_os(byte[] a1, byte[] a2)
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Field Detail
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pubKey
private java.security.interfaces.RSAPublicKey pubKey
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privKey
private java.security.PrivateKey privKey
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param
private SignatureParamSpec param
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plainmsg
private java.io.ByteArrayOutputStream plainmsg
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Method Detail
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engineSetParameter
@Deprecated protected void engineSetParameter(java.lang.String param1, java.lang.Object value)
Deprecated.- Specified by:
engineSetParameter
in classjava.security.SignatureSpi
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engineSetParameter
protected void engineSetParameter(java.security.spec.AlgorithmParameterSpec param1) throws java.security.InvalidAlgorithmParameterException
- Overrides:
engineSetParameter
in classjava.security.SignatureSpi
- Throws:
java.security.InvalidAlgorithmParameterException
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engineGetParameter
@Deprecated protected java.lang.Object engineGetParameter(java.lang.String parameter)
Deprecated.- Specified by:
engineGetParameter
in classjava.security.SignatureSpi
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getMessageDigest
public static java.security.MessageDigest getMessageDigest(SignatureParamSpec spec)
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engineInitSign
protected void engineInitSign(java.security.PrivateKey privateKey)
- Specified by:
engineInitSign
in classjava.security.SignatureSpi
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engineInitVerify
protected void engineInitVerify(java.security.PublicKey publicKey)
- Specified by:
engineInitVerify
in classjava.security.SignatureSpi
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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[] b, int offset, int length)
- Specified by:
engineUpdate
in classjava.security.SignatureSpi
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engineSign
protected int engineSign(byte[] output, int offset, int len) throws java.security.SignatureException
- Overrides:
engineSign
in classjava.security.SignatureSpi
- Throws:
java.security.SignatureException
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engineSign
protected byte[] engineSign()
- Specified by:
engineSign
in classjava.security.SignatureSpi
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engineVerify
protected boolean engineVerify(byte[] sig)
- Specified by:
engineVerify
in classjava.security.SignatureSpi
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i2os
private static byte[] i2os(java.math.BigInteger x, int outLen)
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os2i
private static java.math.BigInteger os2i(byte[] bytes)
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sp1
private static java.math.BigInteger sp1(java.security.PrivateKey key, java.math.BigInteger m)
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vp1
private static java.math.BigInteger vp1(java.security.interfaces.RSAPublicKey key, java.math.BigInteger s)
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concat
private static byte[] concat(byte[] x1, byte[] x2)
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hash
private static byte[] hash(SignatureParamSpec spec, byte[] data)
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mgf1
private static byte[] mgf1(SignatureParamSpec spec, byte[] mgfSeed, int maskLen)
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random_os
private static byte[] random_os(int len)
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xor_os
private static byte[] xor_os(byte[] a1, byte[] a2)
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emsa_pss_encode
public static byte[] emsa_pss_encode(SignatureParamSpec spec, byte[] msg, int emBits)
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emsa_pss_verify
public static boolean emsa_pss_verify(SignatureParamSpec spec, byte[] msg, byte[] EM, int emBits)
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calculateEMBitLen
public static int calculateEMBitLen(java.math.BigInteger modulus)
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pss_sign
private byte[] pss_sign(java.security.PrivateKey key, byte[] msg)
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pss_verify
private boolean pss_verify(java.security.interfaces.RSAPublicKey key, byte[] msg, byte[] S)
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