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authorDr. Stephen Henson <steve@openssl.org>2014-03-19 17:28:01 +0000
committerDr. Stephen Henson <steve@openssl.org>2014-03-19 17:28:01 +0000
commit3a98f9cf20c6af604799ee079bec496b296bb5cc (patch)
treedafcb88ccdb73d58f62d8739a96b3b0a85904e0b /crypto/rsa/rsa_ameth.c
parentf04665a653665cd6432b9adfeb7c7f12a7447d26 (diff)
Workaround for some CMS signature formats.
Some CMS SignedData structure use a signature algorithm OID such as SHA1WithRSA instead of the RSA algorithm OID. Workaround this case by tolerating the signature if we recognise the OID.
Diffstat (limited to 'crypto/rsa/rsa_ameth.c')
-rw-r--r--crypto/rsa/rsa_ameth.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/crypto/rsa/rsa_ameth.c b/crypto/rsa/rsa_ameth.c
index db926b0e42..929193b4fa 100644
--- a/crypto/rsa/rsa_ameth.c
+++ b/crypto/rsa/rsa_ameth.c
@@ -700,7 +700,7 @@ static int rsa_pss_to_ctx(EVP_MD_CTX *ctx, EVP_PKEY_CTX *pkctx,
static int rsa_cms_verify(CMS_SignerInfo *si)
{
- int nid;
+ int nid, nid2;
X509_ALGOR *alg;
EVP_PKEY_CTX *pkctx = CMS_SignerInfo_get0_pkey_ctx(si);
CMS_SignerInfo_get0_algs(si, NULL, NULL, NULL, &alg);
@@ -709,6 +709,12 @@ static int rsa_cms_verify(CMS_SignerInfo *si)
return 1;
if (nid == NID_rsassaPss)
return rsa_pss_to_ctx(NULL, pkctx, alg, NULL);
+ /* Workaround for some implementation that use a signature OID */
+ if (OBJ_find_sigid_algs(nid, NULL, &nid2))
+ {
+ if (nid2 == NID_rsaEncryption)
+ return 1;
+ }
return 0;
}