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binary size cost is much less than 1k.
tested on ath79/generic:
bin: 215128 -> 215132 (+4b)
ipk: 111183 -> 111494 (+311b)
Signed-off-by: Konstantin Demin <rockdrilla@gmail.com>
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The Ed25519 key pairs are much shorter than RSA pairs and are supported
by default in OpenSSH. Looking at websites explaining how to create new
SSH keys, many suggest using Ed25519 rather than RSA, however consider
the former as not yet widely established. OpenWrt likely has a positive
influence on that development.
As enabling Ed25519 is a compile time option, it is currently not
possible to install the feature via `opkg` nor select that option in an
ImageBuilder.
Due to the size impact of **12kB** the option should only be enabled for
devices with `!SMALL_FLASH`.
This approach seems cleaner than splitting `dropbear` into two packages
like `dropbear` and `dropbear-ed25519`.
Signed-off-by: Paul Spooren <mail@aparcar.org>
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If not needed, disabling scp allows for a nice size reduction.
Dropbear executable size comparison:
153621 bytes (baseline)
133077 bytes (without scp)
In other words, we trim a total of 20544 bytes.
Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
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- add Ed25519 support (backport):
* DROPBEAR_ED25519 option for ssh-ed25519,
* disabled by default
- add Chacha20-Poly1305 support (backport):
* DROPBEAR_CHACHA20POLY1305 for chacha20-poly1305@openssh.com,
* enabled by default
- update feature costs in binary size
Signed-off-by: Vladislav Grishenko <themiron@mail.ru>
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This can save ~16KBytes size for the ipk
Signed-off-by: Rosy Song <rosysong@rosinson.com>
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- limit ECC support to ec*-sha2-nistp256:
* DROPBEAR_ECC now provides only basic support for ECC
- provide full ECC support as an option:
* DROPBEAR_ECC_FULL brings back support for ec{dh,dsa}-sha2-nistp{384,521}
- update feature costs in binary size
Signed-off-by: Konstantin Demin <rockdrilla@gmail.com>
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Adds config option to enable compression support which is usefull
when using a terminal sessions over a slow link. Impact on binary
size is negligible but additional 60 kB (uncompressed) is needed for
a shared zlib library.
Signed-off-by: Marcin Jurkowski <marcin1j@gmail.com>
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options
Utmp support tracks who is currenlty logged in by logging info to the file /var/run/utmp (supported by busybox)
Putuline support will use the utmp structure to write to the utmp file
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
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size by ~5 kb
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 48196
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 48195
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Upstream changelog:
https://matt.ucc.asn.au/dropbear/CHANGES
This adds elliptic curve cryptography (ECC) support as an option, disabled
by default.
dropbear mips 34kc uClibc binary size:
before: 161,672 bytes
after, without ECC (default): 164,968
after, with ECC: 198,008
Signed-off-by: Catalin Patulea <cat@vv.carleton.ca>
SVN-Revision: 40297
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