improving passphrase protected private keys

[Sven Kieske]

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Hum,

no I'm a little bit concerned
that my request is actually not needed?

At least this is what I found in
the source, but I'm not that familiar
with it:

/* openssh private key file format */
#define MARK_BEGIN "-----BEGIN OPENSSH PRIVATE KEY-----\n"
#define MARK_END "-----END OPENSSH PRIVATE KEY-----\n"
#define MARK_BEGIN_LEN (sizeof(MARK_BEGIN) - 1)
#define MARK_END_LEN (sizeof(MARK_END) - 1)
#define KDFNAME "bcrypt"
#define AUTH_MAGIC "openssh-key-v1"
#define SALT_LEN 16
#define DEFAULT_CIPHERNAME "aes256-cbc"
#define DEFAULT_ROUNDS 16

from:

https://github.com/openssh/openssh-portable/blob/948a1774a79a85f9deba6d74db95f402dee32c69/sshkey.c

So it seems you actually use bcrypt as default?

Is this already in a released version available?
And if yes, since which version?

Sorry for creating this noise.

kind regards

Sven
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