Hi, Horn.

Jörn Franke wrote:
>Makes sense

I don't think that it's easy.


>>> Maybe use SHA-256 or later. SHA-1 is obsolete and one never knows when it 
>>> will be removed from JDK.

I also know SHA-1 is dangerous.
Someone can generate the string which is hashed into the same SHA-1 to pretend 
another one.
Then SHA-1 should not be used with certifications.
The future JDK may stop using SHA-1 with certifications.
But JDK will never stop supporting SHA-1 algorism.

If SHA-1 is removed from JDK,
ManifoldCF can not be built for reasons of another using of SHA-1.
Some connectors already use SHA-1 as the ID value,
then the previous saved records will be inaccessible.
I can use SHA-256 with Elasticsearch connector.
How should the other SHA-1 be managed?

----
Nintendo, Co., Ltd.
Product Technology Dept.
Takashi SHIRAI
PHONE: +81-75-662-9600
mailto:shi...@nintendo.co.jp

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