RFR: 8267319: Use larger default key sizes and algorithms based on CNSA [v2]

[Weijun Wang]

On Wed, 9 Mar 2022 02:02:51 GMT, Valerie Peng <valeriep at openjdk.org> wrote:

>> It's been several years since we increased the default key sizes. Before shifting to PQC, NSA replaced its Suite B cryptography recommendations with the Commercial National Security Algorithm Suite which suggests:
>> 
>> - SHA-384 for secure hashing
>> - AES-256 for symmetric encryption
>> - RSA with 3072 bit keys for digital signatures and for key exchange
>> - Diffie Hellman (DH) with 3072 bit keys for key exchange
>> - Elliptic curve [P-384] for key exchange (ECDH) and for digital signatures (ECDSA)
>> 
>> So, this proposed changes made the suggested key size and algorithm changes. The changes are mostly in keytool, jarsigner and their regression tests, so @wangweij Could you please take a look?
>> 
>> Thanks!
>
> Valerie Peng has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Updated to use SHA-384 as long as the keysize permits.

The `JarSigner` API is not updated.

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PR: https://git.openjdk.java.net/jdk/pull/7652