On Fri, 9 Mar 2018 16:32:17 +0100, Florian Weimer wrote:
GnuTLS uses Nettle, but does not provide access to DES. You can use
OpenSSL will work as well, but as Nettle is a preexisting dependency,
it's probably the right choice here.
They don't seem to be compatible.
Whereas Nettle is fully compatible with glibc's rpc/des_crypt.h API, it
offers a completely different interface than encrypt(), which operates on
arrays of 64 bytes for each 64-bit block of input.
The ciphertext returned by encrypt() differs compared with Nettle and
des_crypt (and that's with the bit vector transformation from the man page).