Can you hide the crypto pre-shared key?

Is there a way to hide the crypto pre-shared key in IOS? Following is an example of a config command where the key is not hidden:
crypto isakmp key cisco123 address 10.0.110.1
Thanks!

all about encrypting preshared keys in IOS:
http://www.cisco.com/en/US/products/ps6350/products_configuration_guide_chapter09186a0080455ad9.html

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