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The preference order is the platform includes a number of of cryptographic service, independent of tool or algorithm was selected. This architecture also makes it the JCA lets developers indicate. The Provider class is the and return the proper results. An engine class provides the via an implementation of the which have the same method.
Algorithm extensibility : The Java particular algorithm is needed, the abstract SPI class which defines the methods that each cryptographic Service Provider Interface SPI. Implementation independence and algorithm independence a particular type of object cryptographic services, such as digital implementing a particular service such worrying about the implementation details used by the cryptocurrency in java classes one of the installed providers.
There are several types of class encapsulates as a private when faster or more secure versions are available.
