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Pageant: new PuTTY-specific ext request, 'list-extended'.

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This is an extended version of SSH2_AGENTC_REQUEST_IDENTITIES, which
augments each entry in the returned key list with an extra field
containing additional data about the key.

The initial contents of that extra field are a pair of flags
indicating whether the key is currently stored in the agent encrypted,
decrypted or both.

The idea is that this will permit a Pageant-aware client to make
decisions based on that. For a start, the output key list can mention
it to the user; also, if you try to add a key unencrypted when it's
already present, we can discriminate based on whether it's already
present _unencrypted_
This commit is contained in:
Simon Tatham
2020-12-15 13:25:45 +00:00
parent 3687df73a8
commit 39ec2837c8
2 changed files with 58 additions and 3 deletions
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4
pageant.h
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@ -253,4 +253,8 @@ int pageant_sign(struct pageant_pubkey *key, ptrlen message, strbuf *out,
X(EXT_ADD_PPK, PUTTYEXT("add-ppk")) \
X(EXT_REENCRYPT, PUTTYEXT("reencrypt")) \
X(EXT_REENCRYPT_ALL, PUTTYEXT("reencrypt-all")) \
X(EXT_LIST_EXTENDED, PUTTYEXT("list-extended")) \
/* end of list */
#define LIST_EXTENDED_FLAG_HAS_ENCRYPTED_KEY_FILE 1
#define LIST_EXTENDED_FLAG_HAS_NO_CLEARTEXT_KEY 2