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-rw-r--r--crypto/ocsp/ocsp_vfy.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/crypto/ocsp/ocsp_vfy.c b/crypto/ocsp/ocsp_vfy.c
index b0827e9a22..61be41ae2f 100644
--- a/crypto/ocsp/ocsp_vfy.c
+++ b/crypto/ocsp/ocsp_vfy.c
@@ -328,7 +328,7 @@ static int ocsp_match_issuerid(X509 *cert, OCSP_CERTID *cid,
(void)ERR_pop_to_mark();
mdlen = EVP_MD_get_size(dgst);
- if (mdlen < 0) {
+ if (mdlen <= 0) {
ERR_raise(ERR_LIB_OCSP, OCSP_R_DIGEST_SIZE_ERR);
goto end;
}