String expansions: support sha3 under OpenSSL (1.1.1+)

[exim.git] / src / src / hash.c

diff --git a/src/src/hash.c b/src/src/hash.c
index ee43796480d4f27994e6833aa94777ece30be08c..1e25bdbe18269b9d9be9261d3518b49c50f1555a 100644 (file)
--- a/src/src/hash.c
+++ b/src/src/hash.c
@@ -40,6 +40,20 @@ switch (h->method = m)
   case HASH_SHA2_256: h->hashlen = 32; SHA256_Init(&h->u.sha2_256); break;
   case HASH_SHA2_384: h->hashlen = 48; SHA384_Init(&h->u.sha2_512); break;
   case HASH_SHA2_512: h->hashlen = 64; SHA512_Init(&h->u.sha2_512); break;
+#ifdef EXIM_HAVE_SHA3
+  case HASH_SHA3_224: h->hashlen = 28;
+                     EVP_DigestInit(h->u.mctx = EVP_MD_CTX_new(), EVP_sha3_224());
+                     break;
+  case HASH_SHA3_256: h->hashlen = 32;
+                     EVP_DigestInit(h->u.mctx = EVP_MD_CTX_new(), EVP_sha3_256());
+                     break;
+  case HASH_SHA3_384: h->hashlen = 48;
+                     EVP_DigestInit(h->u.mctx = EVP_MD_CTX_new(), EVP_sha3_384());
+                     break;
+  case HASH_SHA3_512: h->hashlen = 64;
+                     EVP_DigestInit(h->u.mctx = EVP_MD_CTX_new(), EVP_sha3_512());
+                     break;
+#endif
   default:           h->hashlen = 0; return FALSE;
   }
 return TRUE;
@@ -55,6 +69,12 @@ switch (h->method)
   case HASH_SHA2_256: SHA256_Update(&h->u.sha2_256, data, len); break;
   case HASH_SHA2_384: SHA384_Update(&h->u.sha2_512, data, len); break;
   case HASH_SHA2_512: SHA512_Update(&h->u.sha2_512, data, len); break;
+#ifdef EXIM_HAVE_SHA3
+  case HASH_SHA3_224:
+  case HASH_SHA3_256:
+  case HASH_SHA3_384:
+  case HASH_SHA3_512: EVP_DigestUpdate(h->u.mctx, data, len); break;
+#endif
   /* should be blocked by init not handling these, but be explicit to
   guard against accidents later (and hush up clang -Wswitch) */
   default: assert(0);
@@ -72,6 +92,12 @@ switch (h->method)
   case HASH_SHA2_256: SHA256_Final(b->data, &h->u.sha2_256); break;
   case HASH_SHA2_384: SHA384_Final(b->data, &h->u.sha2_512); break;
   case HASH_SHA2_512: SHA512_Final(b->data, &h->u.sha2_512); break;
+#ifdef EXIM_HAVE_SHA3
+  case HASH_SHA3_224:
+  case HASH_SHA3_256:
+  case HASH_SHA3_384:
+  case HASH_SHA3_512: EVP_DigestFinal(h->u.mctx, b->data, NULL); break;
+#endif
   default: assert(0);
   }
 }
@@ -92,6 +118,7 @@ switch (h->method = m)
   case HASH_SHA2_384: h->hashlen = 48; gnutls_hash_init(&h->sha, GNUTLS_DIG_SHA384); break;
   case HASH_SHA2_512: h->hashlen = 64; gnutls_hash_init(&h->sha, GNUTLS_DIG_SHA512); break;
 #ifdef EXIM_HAVE_SHA3
+  case HASH_SHA3_224: h->hashlen = 28; gnutls_hash_init(&h->sha, GNUTLS_DIG_SHA3_224); break;
   case HASH_SHA3_256: h->hashlen = 32; gnutls_hash_init(&h->sha, GNUTLS_DIG_SHA3_256); break;
   case HASH_SHA3_384: h->hashlen = 48; gnutls_hash_init(&h->sha, GNUTLS_DIG_SHA3_384); break;
   case HASH_SHA3_512: h->hashlen = 64; gnutls_hash_init(&h->sha, GNUTLS_DIG_SHA3_512); break;