Cryto algorithms used for HDFS encryption, SSL communication & Kerberos setup

[#1]

Hello, Please help to understand the cryto algorithms used for :

1) HDFS encryption at rest

2) SSL/TLS communications

3) Kerberos

We have a HDP 2.5

Thanks,

Vishal.

[#2]

Hi @Vishal Gupta the following crypto algorithms are used:

1) HDFS Encryption at rest uses AES/CTR/NoPadding as the cipher suite. The key size can be 128 or 256 bits.

2) The SSL/TLS question is a bit more difficult to answer as it depends on the individual components involved, however everything is covered in this chapter of our documentation:

http://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.6.0/bk_security/content/ch_hdp-security-guide-wi...

3) Kerberos itself is a protocol, I suggest you take a look at https://en.wikipedia.org/wiki/Kerberos_(protocol)

I hope that helps!

[#3]

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