- java.lang.Object
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- java.security.SignatureSpi
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- com.ibm.crypto.hdwrCCA.provider.MD5withRSA
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public final class MD5withRSA extends java.security.SignatureSpi
This class implements signatures using MD5 and RSA
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Constructor Summary
Constructors Constructor Description MD5withRSA()
Construct a blank RSA object.
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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 privateKey)
Initialize this signature object with a RSA private key.protected void
engineInitVerify(java.security.PublicKey publicKey)
Initialize the RSA object with a RSA public key.protected void
engineSetParameter(java.lang.String key, java.lang.Object param)
Deprecated.protected byte[]
engineSign()
Get message digest for all the data thus far updated, then sign the message digest.protected void
engineUpdate(byte b)
Update digest with the passed in byte.protected void
engineUpdate(byte[] data, int off, int len)
Update digest with an array of bytes.protected boolean
engineVerify(byte[] signature)
Verify the signature (compare the result with the message digest).
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Method Detail
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engineSetParameter
@Deprecated protected void engineSetParameter(java.lang.String key, java.lang.Object param) throws java.lang.UnsupportedOperationException
Deprecated.Have to implement Signature's abstract method engineSetParameter to be a concrete class. However, this method has no meaning for this provider.- Specified by:
engineSetParameter
in classjava.security.SignatureSpi
- Throws:
java.lang.UnsupportedOperationException
- is always thrown.
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engineGetParameter
@Deprecated protected java.lang.Object engineGetParameter(java.lang.String key) throws java.lang.UnsupportedOperationException
Deprecated.Have to implement Signature's abstract method engineSetParameter to be a concrete class. However, this method has no meaning for this provider.- Specified by:
engineGetParameter
in classjava.security.SignatureSpi
- Throws:
java.lang.UnsupportedOperationException
- is always thrown.
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engineInitSign
protected void engineInitSign(java.security.PrivateKey privateKey) throws java.security.InvalidKeyException
Initialize this signature object with a RSA private key.- Specified by:
engineInitSign
in classjava.security.SignatureSpi
- Parameters:
privateKey
- the RSA private key- Throws:
java.security.InvalidKeyException
- ifprivateKey
is not a valid RSA private key.
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engineInitVerify
protected void engineInitVerify(java.security.PublicKey publicKey) throws java.security.InvalidKeyException
Initialize the RSA object with a RSA public key.- Specified by:
engineInitVerify
in classjava.security.SignatureSpi
- Parameters:
publicKey
- the RSA public key.- Throws:
java.security.InvalidKeyException
- if the key is not a valid RSA public key.
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engineUpdate
protected void engineUpdate(byte b)
Update digest with the passed in byte.- Specified by:
engineUpdate
in classjava.security.SignatureSpi
- Parameters:
b
- the byte to updated.
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engineUpdate
protected void engineUpdate(byte[] data, int off, int len)
Update digest with an array of bytes.- Specified by:
engineUpdate
in classjava.security.SignatureSpi
- Parameters:
data
- the array of bytes to add to digest.off
- offset into array for the bytes to be added.len
- length of the array.
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engineSign
protected byte[] engineSign() throws java.security.SignatureException
Get message digest for all the data thus far updated, then sign the message digest.- Specified by:
engineSign
in classjava.security.SignatureSpi
- Returns:
- the signature.
- Throws:
java.security.SignatureException
- if the signature object was not properly initialized, or if another exception occurs.
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engineVerify
protected boolean engineVerify(byte[] signature) throws java.security.SignatureException
Verify the signature (compare the result with the message digest).- Specified by:
engineVerify
in classjava.security.SignatureSpi
- Throws:
java.security.SignatureException
- if the signature object was not properly initialized, or if another exception occurs.
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