SHA1 implementation and test

src/ssl.c

@@ -28708,16 +28708,38 @@ void* wolfSSL_GetDhAgreeCtx(WOLFSSL* ssl)
     defined(HAVE_STUNNEL) || defined(WOLFSSL_NGINX) || defined(HAVE_POCO_LIB) \
     || defined(WOLFSSL_HAPROXY) || defined(OPENSSL_EXTRA)
 
-#ifndef NO_WOLFSSL_STUB
     unsigned char *wolfSSL_SHA1(const unsigned char *d, size_t n, unsigned char *md)
     {
-        (void) *d; (void) n; (void) *md;
-        WOLFSSL_ENTER("wolfSSL_SHA1");
-        WOLFSSL_STUB("SHA1");
+        static byte dig[SHA_DIGEST_SIZE];
+        Sha sha;
 
-        return NULL;
+        WOLFSSL_ENTER("wolfSSL_SHA1");
+
+        if (wc_InitSha_ex(&sha, NULL, 0) != 0) {
+            WOLFSSL_MSG("SHA1 Init failed");
+            return NULL;
+        }
+
+        if (wc_ShaUpdate(&sha, (const byte*)d, (word32)n) != 0) {
+            WOLFSSL_MSG("SHA1 Update failed");
+            return NULL;
+        }
+
+        if (wc_ShaFinal(&sha, dig) != 0) {
+            WOLFSSL_MSG("SHA1 Final failed");
+            return NULL;
+        }
+
+        wc_ShaFree(&sha);
+
+        if (md != NULL) {
+            XMEMCPY(md, dig, SHA_DIGEST_SIZE);
+            return md;
+        }
+        else {
+            return (unsigned char*)dig;
+        }
     }
-#endif
 
     char wolfSSL_CTX_use_certificate(WOLFSSL_CTX *ctx, WOLFSSL_X509 *x)
     {

tests/api.c

@@ -16158,6 +16158,27 @@ static void test_wolfSSL_msg_callback(void)
 #endif
 }
 
+static void test_wolfSSL_SHA(void)
+{
+#if defined(OPENSSL_EXTRA)
+    printf(testingFmt, "wolfSSL_SHA()");
+
+    #if !defined(NO_SHA)
+    {
+        const unsigned char in[] = "abc";
+        unsigned char expected[] = "\xA9\x99\x3E\x36\x47\x06\x81\x6A\xBA\x3E"
+                                    "\x25\x71\x78\x50\xC2\x6C\x9C\xD0\xD8\x9D";
+        unsigned char out[SHA_DIGEST_SIZE];
+
+        XMEMSET(out, 0, SHA_DIGEST_SIZE);
+        AssertNotNull(SHA1(in, XSTRLEN((char*)in), out));
+        AssertIntEQ(XMEMCMP(out, expected, SHA_DIGEST_SIZE), 0);
+    }
+    #endif
+    printf(resultFmt, passed);
+#endif
+}
+
 static void test_no_op_functions(void)
 {
     #if defined(OPENSSL_EXTRA)
@@ -16982,6 +17003,7 @@ void ApiTest(void)
     test_wolfSSL_verify_depth();
     test_wolfSSL_HMAC_CTX();
     test_wolfSSL_msg_callback();
+    test_wolfSSL_SHA();
 
     /* test the no op functions for compatibility */
     test_no_op_functions();