| 1 | /************************************************* |
| 2 | * Exim - an Internet mail transport agent * |
| 3 | *************************************************/ |
| 4 | |
| 5 | /* Copyright (c) Jeremy Harris 1995 - 2018 */ |
| 6 | /* See the file NOTICE for conditions of use and distribution. */ |
| 7 | |
| 8 | /* Signing and hashing routine selection for PDKIM */ |
| 9 | |
| 10 | #include "../exim.h" |
| 11 | #include "../sha_ver.h" |
| 12 | |
| 13 | |
| 14 | #ifdef USE_GNUTLS |
| 15 | # include <gnutls/gnutls.h> |
| 16 | |
| 17 | # if GNUTLS_VERSION_NUMBER >= 0x030000 |
| 18 | # define SIGN_GNUTLS |
| 19 | # if GNUTLS_VERSION_NUMBER >= 0x030600 |
| 20 | # define SIGN_HAVE_ED25519 |
| 21 | # endif |
| 22 | # else |
| 23 | # define SIGN_GCRYPT |
| 24 | # endif |
| 25 | #endif |
| 26 | |
| 27 | #ifdef USE_OPENSSL |
| 28 | # define SIGN_OPENSSL |
| 29 | # if !defined(LIBRESSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER >= 0x10101000L |
| 30 | # define SIGN_HAVE_ED25519 |
| 31 | # endif |
| 32 | #endif |
| 33 | |