GOSTR341194: mark as insecure for digital signatures

Although there are no practical attacks known on the algorithm, the practical
strength of the algorithm is weaker than the theoritical. In addition this algorithm
is already considered legacy, and as such mark it as insecure for digital
signatures to reduce the attack surface.

Relates: #909

Signed-off-by: Nikos Mavrogiannopoulos <[email protected]>
18 jobs for tmp-mark-gost94-as-broken in 65 minutes and 23 seconds (queued for 1 second)
Status Job ID Name Coverage
  Stage1 Testing
passed #415358991
linux docker shared
Debian.cross.aarch64-linux-gnu

01:01:17

passed #415358989
linux docker shared
Debian.cross.arm-linux-gnueabihf

01:05:20

passed #415358988
linux docker shared
Debian.cross.i686-linux-gnu

00:27:55

passed #415358990
linux docker shared
Debian.cross.mips-linux-gnu

01:00:50

passed #415358986
linux shared
Debian.x86_64

00:26:42

passed #415358979
linux shared
FIPS140-2.Fedora.x86_64

00:24:04

passed #415358984
linux docker shared
MinGW32

00:24:10

passed #415358983
linux docker shared
MinGW64

00:18:24

passed #415358978
linux shared
SSL-3.0.Fedora.x86_64

00:24:55

passed #415358985
linux shared
UB+ASAN-Werror.Fedora.x86_64.gcc

00:42:27

passed #415358976
linux shared
abi/coverage

00:27:34

passed #415358974
commit-check

00:00:58

passed #415358975
linux shared
doc-dist.Fedora

00:36:24

passed #415358977
linux shared
minimal.Fedora.x86_64

00:13:48

passed #415358992
linux shared
nettle-master.Fedora

00:28:32

passed #415358982
linux shared
static-analyzers.Fedora.x86_64

00:26:20

passed #415358981
linux shared
threadsan.Fedora.x86_64

00:07:40

passed #415358980
linux shared
valgrind.Fedora.x86_64

00:54:48