goto err;
mdname = EVP_MD_name(md);
*p++ = OSSL_PARAM_construct_utf8_string(OSSL_KDF_PARAM_DIGEST,
- (char *)mdname, strlen(mdname) + 1);
+ (char *)mdname, 0);
*p++ = OSSL_PARAM_construct_octet_string(OSSL_KDF_PARAM_SECRET,
(unsigned char *)sec,
(size_t)slen);