This adds the `diffie-hellman-group16-sha512` key exchange and
`hmac-sha2-512` mac support.
Echoserver can now take `-x` for key exchange and `-m` for mac setting,
and `-c` for cipher so that this can be used in the test suite.
This implements Keyboard-Interactive authentication.
Adds an additional callback set by `wolfSSH_KeyboarAuthPrompts()` which
will set a callback in the server to ask the application to provide the
prompt details for the client.
1. Switching to use the new SSH-KDF function in wolfCrypt when the
correct version of wolfSSL (v5.0.0 at a minimum) is used, when
certified version of wolfCrypt is used or Kyber is disabled.
2. Add WOLFSSL_WOLFSSH to the wolfSSL user_settings files for the Zephyr
testing.
For Zephyr, we allocate memory for a thread's stack from the heap.
Recently a thread's stack size was changed from 24k to 48k. wolfSSH
needed the size of the libc memory arena to be increased a bit to
account for this change.
Modify the SFTP tests to use the file configure.ac instead of configure.
Some environments do not have or use configure. Configure.ac is in the
source archive.
Andrew Hutchings
John Safranek
Juliusz Sosinowicz
JacobBarthelmeh