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-rw-r--r--crypto/cms/cms_lib.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/crypto/cms/cms_lib.c b/crypto/cms/cms_lib.c
index 8e6c1d29a52c..cc00526d3e07 100644
--- a/crypto/cms/cms_lib.c
+++ b/crypto/cms/cms_lib.c
@@ -415,7 +415,11 @@ int cms_DigestAlgorithm_find_ctx(EVP_MD_CTX *mctx, BIO *chain,
return 0;
}
BIO_get_md_ctx(chain, &mtmp);
- if (EVP_MD_CTX_type(mtmp) == nid)
+ if (EVP_MD_CTX_type(mtmp) == nid
+ /* Workaround for broken implementations that use signature
+ * algorithm OID instead of digest.
+ */
+ || EVP_MD_pkey_type(EVP_MD_CTX_md(mtmp)) == nid)
{
EVP_MD_CTX_copy_ex(mctx, mtmp);
return 1;