Package com.itextpdf.signatures
Class ProviderDigest
- java.lang.Object
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- com.itextpdf.signatures.ProviderDigest
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- All Implemented Interfaces:
IExternalDigest
public class ProviderDigest extends java.lang.Object implements IExternalDigest
This class will return theMessageDigest
associated with a certain hashing algorithm returned by the specified provider.
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Field Summary
Fields Modifier and Type Field Description private java.lang.String
provider
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Constructor Summary
Constructors Constructor Description ProviderDigest(java.lang.String provider)
Creates a ProviderDigest.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.security.MessageDigest
getMessageDigest(java.lang.String hashAlgorithm)
Returns the MessageDigest associated with the provided hashing algorithm.
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Method Detail
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getMessageDigest
public java.security.MessageDigest getMessageDigest(java.lang.String hashAlgorithm) throws java.security.GeneralSecurityException
Description copied from interface:IExternalDigest
Returns the MessageDigest associated with the provided hashing algorithm.- Specified by:
getMessageDigest
in interfaceIExternalDigest
- Parameters:
hashAlgorithm
- String value representing the hashing algorithm- Returns:
- MessageDigest MessageDigest object
- Throws:
java.security.GeneralSecurityException
- Thrown when something goes wrong in calculating the digest
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