From: Vitaly Chikunov <vt@altlinux.org>
Date: Tue, 12 May 2020 22:55:49 +0000 (+0300)
Subject: gost_md: Rework alias support in digest registration
X-Git-Tag: v3.0.0~101^2~7
X-Git-Url: http://wagner.pp.ru/gitweb/?a=commitdiff_plain;h=522de4bf0a1f1d14228034568dc6a3e74e2ffb08;p=openssl-gost%2Fengine.git

gost_md: Rework alias support in digest registration
---

diff --git a/gost_lcl.h b/gost_lcl.h
index d2d2e79..d00955a 100644
--- a/gost_lcl.h
+++ b/gost_lcl.h
@@ -363,6 +363,7 @@ extern GOST_cipher kuznyechik_kexp15_cipher;
 struct gost_digest_st {
     struct gost_digest_st *template;
     int nid;
+    const char *alias;
     EVP_MD *digest;
     int result_size;
     int input_blocksize;
diff --git a/gost_md.c b/gost_md.c
index 1de9ffd..909054f 100644
--- a/gost_md.c
+++ b/gost_md.c
@@ -63,12 +63,16 @@ EVP_MD *GOST_init_digest(GOST_digest *d)
         EVP_MD_meth_free(md);
         md = NULL;
     }
+    if (md && d->alias)
+        EVP_add_digest_alias(EVP_MD_name(md), d->alias);
     d->digest = md;
     return md;
 }
 
 void GOST_deinit_digest(GOST_digest *d)
 {
+    if (d->alias)
+        EVP_delete_digest_alias(d->alias);
     EVP_MD_meth_free(d->digest);
     d->digest = NULL;
 }
diff --git a/gost_md2012.c b/gost_md2012.c
index 8d1bde8..3900e5a 100644
--- a/gost_md2012.c
+++ b/gost_md2012.c
@@ -39,6 +39,7 @@ GOST_digest GostR3411_2012_template_digest = {
 
 GOST_digest GostR3411_2012_256_digest = {
     .nid = NID_id_GostR3411_2012_256,
+    .alias = "streebog256",
     .template = &GostR3411_2012_template_digest,
     .result_size = 32,
     .init = gost_digest_init256,
@@ -57,6 +58,7 @@ void digest_gost2012_256_destroy(void)
 
 GOST_digest GostR3411_2012_512_digest = {
     .nid = NID_id_GostR3411_2012_512,
+    .alias = "streebog512",
     .template = &GostR3411_2012_template_digest,
     .result_size = 64,
     .init = gost_digest_init512,