speed: Fix execution of EdDSA measurement

Running 'openssl speed eddsa' fails with

Doing 253 bits sign Ed25519 ops for 10s: EdDSA sign failure
000003FF9306C7D0:error:030000BC:digital envelope routines:EVP_DigestSign:
                           final error:crypto/evp/m_sigver.c:585:
-1 253 bits Ed25519 sign ops in 0.00s
Doing 253 bits verify Ed25519 ops for 10s: EdDSA verify failure
000003FF9306C7D0:error:030000BC:digital envelope routines:EVP_DigestVerify:
                           final error:crypto/evp/m_sigver.c:694:
-1 253 bits Ed25519 verify ops in 0.00s

This is because the EVP_DigestSign/Verify() calls in the EdDSA_sign/verify_loop()
fail because the context has already been finalized by the previous
EVP_DigestSign/Verify call during the EdDSA signature test done by speed_main().

This happens since commit 3fc2b7d6b8f961144905330dfd4689f5bd515199 where the
EVP_DigestSign/Verify() functions have been changed to set a flag that the
context has been finalized.

Fix this by re-initializing the context using EVP_DigestSign/Verify() in the
EdDSA_sign/verify_loop().

Signed-off-by: Ingo Franzki <ifranzki@linux.ibm.com>

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/21491)

(cherry picked from commit 0c85bcbaeabe3a695831bec44ab87964725a51a6)

1 files changed, 14 insertions, 0 deletions

diff --git a/apps/speed.c b/apps/speed.c
index bac393e316..8cd9dab7bc 100644
--- a/apps/speed.c
+++ b/apps/speed.c
@@ -1024,6 +1024,13 @@ static int EdDSA_sign_loop(void *args)
     int ret, count;
 
     for (count = 0; COND(eddsa_c[testnum][0]); count++) {
+        ret = EVP_DigestSignInit(edctx[testnum], NULL, NULL, NULL, NULL);
+        if (ret == 0) {
+            BIO_printf(bio_err, "EdDSA sign init failure\n");
+            ERR_print_errors(bio_err);
+            count = -1;
+            break;
+        }
         ret = EVP_DigestSign(edctx[testnum], eddsasig, eddsasigsize, buf, 20);
         if (ret == 0) {
             BIO_printf(bio_err, "EdDSA sign failure\n");
@@ -1045,6 +1052,13 @@ static int EdDSA_verify_loop(void *args)
     int ret, count;
 
     for (count = 0; COND(eddsa_c[testnum][1]); count++) {
+        ret = EVP_DigestVerifyInit(edctx[testnum], NULL, NULL, NULL, NULL);
+        if (ret == 0) {
+            BIO_printf(bio_err, "EdDSA verify init failure\n");
+            ERR_print_errors(bio_err);
+            count = -1;
+            break;
+        }
         ret = EVP_DigestVerify(edctx[testnum], eddsasig, eddsasigsize, buf, 20);
         if (ret != 1) {
             BIO_printf(bio_err, "EdDSA verify failure\n");