Use AES256 for private key password encryption

Adds 

```
s2k-cipher-algo AES256
```

to the GPG configuration, per https://pthree.org/2015/11/19/your-gnupg-private-key/

> --s2k-cipher-algo name
> Use name as the cipher algorithm used to protect secret keys. The default cipher is CAST5. This cipher is also used for symmetric encryption with a passphrase if --personal-cipher-preferences and --cipher-algo is not given.

https://www.gnupg.org/documentation/manuals/gnupg-2.0/OpenPGP-Options.html#index-s2k_002dcipher_002dalgo
This commit is contained in:
Will Sargent 2016-09-24 10:29:56 -07:00 committed by GitHub
parent 97c39f90b0
commit 8515aaf839
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@ -159,6 +159,7 @@ Paste the following [text](https://stackoverflow.com/questions/2500436/how-does-
default-preference-list SHA512 SHA384 SHA256 SHA224 AES256 AES192 AES CAST5 ZLIB BZIP2 ZIP Uncompressed
cert-digest-algo SHA512
s2k-digest-algo SHA512
s2k-cipher-algo AES256
charset utf-8
fixed-list-mode
no-comments
@ -939,6 +940,7 @@ Paste the following text into a terminal window to create a [recommended](https:
personal-digest-preferences SHA512 SHA384 SHA256 SHA224
default-preference-list SHA512 SHA384 SHA256 SHA224 AES256 AES192 AES CAST5 ZLIB BZIP2 ZIP Uncompressed
cert-digest-algo SHA512
s2k-cipher-algo AES256
s2k-digest-algo SHA512
charset utf-8
fixed-list-mode