psssigner.html

java非对称加密的源代码

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<A NAME="TRAILER_IMPLICIT"><!-- --></A><H3>
TRAILER_IMPLICIT</H3>
<PRE>
public static final byte <B>TRAILER_IMPLICIT</B></PRE>
<DL>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#org.bouncycastle.crypto.signers.PSSSigner.TRAILER_IMPLICIT">Constant Field Values</A></DL>
</DL>

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<A NAME="PSSSigner(org.bouncycastle.crypto.AsymmetricBlockCipher, org.bouncycastle.crypto.Digest, int)"><!-- --></A><H3>
PSSSigner</H3>
<PRE>
public <B>PSSSigner</B>(<A HREF="../../../../org/bouncycastle/crypto/AsymmetricBlockCipher.html" title="interface in org.bouncycastle.crypto">AsymmetricBlockCipher</A>&nbsp;cipher,
                 <A HREF="../../../../org/bouncycastle/crypto/Digest.html" title="interface in org.bouncycastle.crypto">Digest</A>&nbsp;digest,
                 int&nbsp;sLen)</PRE>
<DL>
<DD>basic constructor
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>cipher</CODE> - the assymetric cipher to use.<DD><CODE>digest</CODE> - the digest to use.<DD><CODE>sLen</CODE> - the length of the salt to use (in bytes).</DL>
</DL>
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<A NAME="PSSSigner(org.bouncycastle.crypto.AsymmetricBlockCipher, org.bouncycastle.crypto.Digest, int, byte)"><!-- --></A><H3>
PSSSigner</H3>
<PRE>
public <B>PSSSigner</B>(<A HREF="../../../../org/bouncycastle/crypto/AsymmetricBlockCipher.html" title="interface in org.bouncycastle.crypto">AsymmetricBlockCipher</A>&nbsp;cipher,
                 <A HREF="../../../../org/bouncycastle/crypto/Digest.html" title="interface in org.bouncycastle.crypto">Digest</A>&nbsp;digest,
                 int&nbsp;sLen,
                 byte&nbsp;trailer)</PRE>
<DL>
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<A NAME="init(boolean, org.bouncycastle.crypto.CipherParameters)"><!-- --></A><H3>
init</H3>
<PRE>
public void <B>init</B>(boolean&nbsp;forSigning,
                 <A HREF="../../../../org/bouncycastle/crypto/CipherParameters.html" title="interface in org.bouncycastle.crypto">CipherParameters</A>&nbsp;param)</PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/bouncycastle/crypto/Signer.html#init(boolean, org.bouncycastle.crypto.CipherParameters)">Signer</A></CODE></B></DD>
<DD>Initialise the signer for signing or verification.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/bouncycastle/crypto/Signer.html#init(boolean, org.bouncycastle.crypto.CipherParameters)">init</A></CODE> in interface <CODE><A HREF="../../../../org/bouncycastle/crypto/Signer.html" title="interface in org.bouncycastle.crypto">Signer</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>forSigning</CODE> - true if for signing, false otherwise<DD><CODE>param</CODE> - necessary parameters.</DL>
</DD>
</DL>
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<A NAME="update(byte)"><!-- --></A><H3>
update</H3>
<PRE>
public void <B>update</B>(byte&nbsp;b)</PRE>
<DL>
<DD>update the internal digest with the byte b
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/bouncycastle/crypto/Signer.html#update(byte)">update</A></CODE> in interface <CODE><A HREF="../../../../org/bouncycastle/crypto/Signer.html" title="interface in org.bouncycastle.crypto">Signer</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
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<A NAME="update(byte[], int, int)"><!-- --></A><H3>
update</H3>
<PRE>
public void <B>update</B>(byte[]&nbsp;in,
                   int&nbsp;off,
                   int&nbsp;len)</PRE>
<DL>
<DD>update the internal digest with the byte array in
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/bouncycastle/crypto/Signer.html#update(byte[], int, int)">update</A></CODE> in interface <CODE><A HREF="../../../../org/bouncycastle/crypto/Signer.html" title="interface in org.bouncycastle.crypto">Signer</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
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<A NAME="reset()"><!-- --></A><H3>
reset</H3>
<PRE>
public void <B>reset</B>()</PRE>
<DL>
<DD>reset the internal state
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/bouncycastle/crypto/Signer.html#reset()">reset</A></CODE> in interface <CODE><A HREF="../../../../org/bouncycastle/crypto/Signer.html" title="interface in org.bouncycastle.crypto">Signer</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
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<A NAME="generateSignature()"><!-- --></A><H3>
generateSignature</H3>
<PRE>
public byte[] <B>generateSignature</B>()
                         throws <A HREF="../../../../org/bouncycastle/crypto/CryptoException.html" title="class in org.bouncycastle.crypto">CryptoException</A>,
                                <A HREF="../../../../org/bouncycastle/crypto/DataLengthException.html" title="class in org.bouncycastle.crypto">DataLengthException</A></PRE>
<DL>
<DD>generate a signature for the message we've been loaded with using
 the key we were initialised with.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/bouncycastle/crypto/Signer.html#generateSignature()">generateSignature</A></CODE> in interface <CODE><A HREF="../../../../org/bouncycastle/crypto/Signer.html" title="interface in org.bouncycastle.crypto">Signer</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../org/bouncycastle/crypto/CryptoException.html" title="class in org.bouncycastle.crypto">CryptoException</A></CODE>
<DD><CODE><A HREF="../../../../org/bouncycastle/crypto/DataLengthException.html" title="class in org.bouncycastle.crypto">DataLengthException</A></CODE></DL>
</DD>
</DL>
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<A NAME="verifySignature(byte[])"><!-- --></A><H3>
verifySignature</H3>
<PRE>
public boolean <B>verifySignature</B>(byte[]&nbsp;signature)</PRE>
<DL>
<DD>return true if the internal state represents the signature described
 in the passed in array.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/bouncycastle/crypto/Signer.html#verifySignature(byte[])">verifySignature</A></CODE> in interface <CODE><A HREF="../../../../org/bouncycastle/crypto/Signer.html" title="interface in org.bouncycastle.crypto">Signer</A></CODE></DL>
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