I am new KDFs. I need backgrounds of KDF and ASN x9.63, HKDF using Java

Asked Jan 31 '22 at 18:56

Active Jan 31 '22 at 18:56

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JavaCard 3.1 introduces this KDF as part of this release. Can someone help me in understanding this topic clearly? (KDF ANS X9.63). I need some parameters informations. What is shared secret and shared Info, differences between them, how they are generated etc.. How to validate and corresponding code in Java ? to assert the outputs from Javacard & Java to be the same.Some unit testing to be done from my side.

Similarly the same is also requested for HKDF.

Thanks in Advance !!!

asked Jan 31 '22 at 18:56

Baviri Ajith

2

Welcome to Cryptography.SE. This is a question-and-answer site. Not lecturing site. What did you read and what is not clear for you. Your question is lack of reading/search and too broad to be answered. Here HKDF, for example. – kelalaka Jan 31 '22 at 19:12
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and Formal description of KDF1 and KDF2 – kelalaka Jan 31 '22 at 19:31
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Another Security of KDF1 and KDF2 (hash based KDF's) – kelalaka Jan 31 '22 at 21:39

I am new KDFs. I need backgrounds of KDF and ASN x9.63, HKDF using Java

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