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authorTomas Mraz <tomas@openssl.org>2021-04-13 17:31:08 +0200
committerTomas Mraz <tomas@openssl.org>2021-04-19 11:36:16 +0200
commitb247113c053903ebb61a54ba5324847ba883ed70 (patch)
treed01dfc99a0b4f52ba94b186ff1e476f1b1916e2f /crypto/rsa
parent5ae52001e115452ca285713feb1c2feaf07902ad (diff)
Detect low-level engine and app method based keys
The low-level engine and app method based keys have to be treated as foreign and must be used with old legacy pmeths. Fixes #14632 Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14859)
Diffstat (limited to 'crypto/rsa')
-rw-r--r--crypto/rsa/rsa_backend.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/crypto/rsa/rsa_backend.c b/crypto/rsa/rsa_backend.c
index 192b3fdbf7..4a0ad2856b 100644
--- a/crypto/rsa/rsa_backend.c
+++ b/crypto/rsa/rsa_backend.c
@@ -323,6 +323,15 @@ int ossl_rsa_pss_params_30_fromdata(RSA_PSS_PARAMS_30 *pss_params,
return ret;
}
+int ossl_rsa_is_foreign(const RSA *rsa)
+{
+#ifndef FIPS_MODULE
+ if (rsa->engine != NULL || RSA_get_method(rsa) != RSA_PKCS1_OpenSSL())
+ return 1;
+#endif
+ return 0;
+}
+
static ossl_inline int rsa_bn_dup_check(BIGNUM **out, const BIGNUM *f)
{
if (f != NULL && (*out = BN_dup(f)) == NULL)
@@ -335,11 +344,11 @@ RSA *ossl_rsa_dup(const RSA *rsa, int selection)
RSA *dupkey = NULL;
#ifndef FIPS_MODULE
int pnum, i;
+#endif
/* Do not try to duplicate foreign RSA keys */
- if (RSA_get_method(rsa) != RSA_PKCS1_OpenSSL())
+ if (ossl_rsa_is_foreign(rsa))
return NULL;
-#endif
if ((dupkey = ossl_rsa_new_with_ctx(rsa->libctx)) == NULL)
return NULL;