Package org.springframework.security.core.token

Class SecureRandomFactoryBean

  • All Implemented Interfaces:
    org.springframework.beans.factory.FactoryBean<java.security.SecureRandom>
    public class SecureRandomFactoryBean
extends java.lang.Object
implements org.springframework.beans.factory.FactoryBean<java.security.SecureRandom>
    Creates a SecureRandom instance.
    Since:
    2.0.1

    • Field Summary

      • Fields inherited from interface org.springframework.beans.factory.FactoryBean

        OBJECT_TYPE_ATTRIBUTE

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      java.security.SecureRandom getObject()  
      java.lang.Class<java.security.SecureRandom> getObjectType()  
      boolean isSingleton()  
      void setAlgorithm​(java.lang.String algorithm)
      Allows the Pseudo Random Number Generator (PRNG) algorithm to be nominated.
      void setSeed​(org.springframework.core.io.Resource seed)
      Allows the user to specify a resource which will act as a seed for the SecureRandom instance.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • SecureRandomFactoryBean

        public SecureRandomFactoryBean()

    • Method Detail

      • getObject

        public java.security.SecureRandom getObject()
                                     throws java.lang.Exception
        Specified by:
        getObject in interface org.springframework.beans.factory.FactoryBean<java.security.SecureRandom>
        Throws:
        java.lang.Exception

      • getObjectType

        public java.lang.Class<java.security.SecureRandom> getObjectType()
        Specified by:
        getObjectType in interface org.springframework.beans.factory.FactoryBean<java.security.SecureRandom>

      • isSingleton

        public boolean isSingleton()
        Specified by:
        isSingleton in interface org.springframework.beans.factory.FactoryBean<java.security.SecureRandom>

      • setAlgorithm

        public void setAlgorithm​(java.lang.String algorithm)
        Allows the Pseudo Random Number Generator (PRNG) algorithm to be nominated. Defaults to "SHA1PRNG".
        Parameters:
        algorithm - to use (mandatory)

      • setSeed

        public void setSeed​(org.springframework.core.io.Resource seed)
        Allows the user to specify a resource which will act as a seed for the SecureRandom instance. Specifically, the resource will be read into an InputStream and those bytes presented to the SecureRandom.setSeed(byte[]) method. Note that this will simply supplement, rather than replace, the existing seed. As such, it is always safe to set a seed using this method (it never reduces randomness).
        Parameters:
        seed - to use, or null if no additional seeding is needed