Interface Summary
Token A token issued by TokenService.
TokenService Provides a mechanism to allocate and rebuild secure, randomised tokens.

Class Summary
DefaultToken The default implementation of Token.
KeyBasedPersistenceTokenService Basic implementation of TokenService that is compatible with clusters and across machine restarts, without requiring database persistence.
SecureRandomFactoryBean Creates a SecureRandom instance.
Sha512DigestUtils Provides SHA512 digest methods.

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