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menu "Configuration"
depends on PACKAGE_dropbear
config DROPBEAR_CURVE25519
bool "Curve25519 support"
default y
help
This enables the following key exchange algorithm:
curve25519-sha256@libssh.org
Increases binary size by about 4 kB (MIPS).
config DROPBEAR_ECC
bool "Elliptic curve cryptography (ECC)"
default n
help
Enables basic support for elliptic curve cryptography (ECC)
in key exchange and public key authentication.
Key exchange algorithms:
ecdh-sha2-nistp256
Public key algorithms:
ecdsa-sha2-nistp256
Increases binary size by about 24 kB (MIPS).
If full ECC support is required, also select DROPBEAR_ECC_FULL.
config DROPBEAR_ECC_FULL
bool "Elliptic curve cryptography (ECC), full support"
default n
depends on DROPBEAR_ECC
help
Enables full support for elliptic curve cryptography (ECC)
in key exchange and public key authentication.
Key exchange algorithms:
ecdh-sha2-nistp256 (*)
ecdh-sha2-nistp384
ecdh-sha2-nistp521
Public key algorithms:
ecdsa-sha2-nistp256 (*)
ecdsa-sha2-nistp384
ecdsa-sha2-nistp521
(*) - basic ECC support; provided by DROPBEAR_ECC.
Increases binary size by about 4 kB (MIPS).
config DROPBEAR_ED25519
bool "Ed25519 support"
default n
help
This enables the following public key algorithm:
ssh-ed25519
Increases binary size by about 12 kB (MIPS).
config DROPBEAR_CHACHA20POLY1305
bool "Chacha20-Poly1305 support"
default y
help
This enables the following authenticated encryption cipher:
chacha20-poly1305@openssh.com
Increases binary size by about 4 kB (MIPS).
config DROPBEAR_ZLIB
bool "Enable compression"
default n
help
Enables compression using shared zlib library.
Increases binary size by about 0.1 kB (MIPS) and requires additional 62 kB (MIPS)
for a shared zlib library.
config DROPBEAR_UTMP
bool "Utmp support"
default n
depends on BUSYBOX_CONFIG_FEATURE_UTMP
help
This enables dropbear utmp support, the file /var/run/utmp is used to
track who is currently logged in.
config DROPBEAR_PUTUTLINE
bool "Pututline support"
default n
depends on DROPBEAR_UTMP
help
Dropbear will use pututline() to write the utmp structure into the utmp file.
config DROPBEAR_DBCLIENT
bool "Build dropbear with dbclient"
default y
endmenu
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