--- xmlsec1-1.2.20/src/openssl/signatures.c     2014-05-27 14:29:01.000000000 -0400
+++ xmlsec1-1.2.20-fips-ecdsa/src/openssl/signatures.c  2022-04-26 10:54:52.307545779 -0400
@@ -1333,7 +1333,7 @@
     NID_ecdsa_with_SHA224,
     SHA224_DIGEST_LENGTH,
 #ifndef XMLSEC_OPENSSL_096
-    0,
+    EVP_MD_FLAG_FIPS,
     xmlSecOpenSSLEcdsaSha224EvpInit,
     xmlSecOpenSSLEcdsaSha224EvpUpdate,
     xmlSecOpenSSLEcdsaSha224EvpFinal,
@@ -1431,7 +1431,7 @@
     NID_ecdsa_with_SHA256,
     SHA256_DIGEST_LENGTH,
 #ifndef XMLSEC_OPENSSL_096
-    0,
+    EVP_MD_FLAG_FIPS,
     xmlSecOpenSSLEcdsaSha256EvpInit,
     xmlSecOpenSSLEcdsaSha256EvpUpdate,
     xmlSecOpenSSLEcdsaSha256EvpFinal,
@@ -1529,7 +1529,7 @@
     NID_ecdsa_with_SHA384,
     SHA384_DIGEST_LENGTH,
 #ifndef XMLSEC_OPENSSL_096
-    0,
+    EVP_MD_FLAG_FIPS,
     xmlSecOpenSSLEcdsaSha384EvpInit,
     xmlSecOpenSSLEcdsaSha384EvpUpdate,
     xmlSecOpenSSLEcdsaSha384EvpFinal,
@@ -1627,7 +1627,7 @@
     NID_ecdsa_with_SHA512,
     SHA512_DIGEST_LENGTH,
 #ifndef XMLSEC_OPENSSL_096
-    0,
+    EVP_MD_FLAG_FIPS,
     xmlSecOpenSSLEcdsaSha512EvpInit,
     xmlSecOpenSSLEcdsaSha512EvpUpdate,
     xmlSecOpenSSLEcdsaSha512EvpFinal,