diff options
| author | Richard Levitte <levitte@openssl.org> | 2018-09-06 09:35:39 +0200 |
|---|---|---|
| committer | Matt Caswell <matt@openssl.org> | 2018-09-11 09:49:35 +0100 |
| commit | fb953d29b1775017c435000f180b755886999984 (patch) | |
| tree | 8c87d8de1a76ebb75f84fdc03c5b72188d97ca4b | |
| parent | 4a98bb0068cae9fbe5c6a6e513093d41969dad58 (diff) | |
CAPI engine: add support for RSA_NO_PADDING
Since the SSL code started using RSA_NO_PADDING, the CAPI engine became
unusable. This change fixes that.
Fixes #7131
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7132)
| -rw-r--r-- | engines/e_capi.c | 32 |
1 files changed, 24 insertions, 8 deletions
diff --git a/engines/e_capi.c b/engines/e_capi.c index 8c08872bfd..814a3253f2 100644 --- a/engines/e_capi.c +++ b/engines/e_capi.c @@ -900,6 +900,8 @@ int capi_rsa_priv_dec(int flen, const unsigned char *from, unsigned char *tmpbuf; CAPI_KEY *capi_key; CAPI_CTX *ctx; + DWORD flags = 0; + ctx = ENGINE_get_ex_data(rsa->engine, capi_idx); CAPI_trace(ctx, "Called capi_rsa_priv_dec()\n"); @@ -910,12 +912,23 @@ int capi_rsa_priv_dec(int flen, const unsigned char *from, return -1; } - if (padding != RSA_PKCS1_PADDING) { - char errstr[10]; - BIO_snprintf(errstr, 10, "%d", padding); - CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_UNSUPPORTED_PADDING); - ERR_add_error_data(2, "padding=", errstr); - return -1; + switch (padding) { + case RSA_PKCS1_PADDING: + /* Nothing to do */ + break; +#ifdef CRYPT_DECRYPT_RSA_NO_PADDING_CHECK + case RSA_NO_PADDING: + flags = CRYPT_DECRYPT_RSA_NO_PADDING_CHECK; + break; +#endif + default: + { + char errstr[10]; + BIO_snprintf(errstr, 10, "%d", padding); + CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_UNSUPPORTED_PADDING); + ERR_add_error_data(2, "padding=", errstr); + return -1; + } } /* Create temp reverse order version of input */ @@ -927,14 +940,17 @@ int capi_rsa_priv_dec(int flen, const unsigned char *from, tmpbuf[flen - i - 1] = from[i]; /* Finally decrypt it */ - if (!CryptDecrypt(capi_key->key, 0, TRUE, 0, tmpbuf, &flen)) { + if (!CryptDecrypt(capi_key->key, 0, TRUE, flags, tmpbuf, &flen)) { CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_DECRYPT_ERROR); capi_addlasterror(); + OPENSSL_cleanse(tmpbuf, flen); OPENSSL_free(tmpbuf); return -1; - } else + } else { memcpy(to, tmpbuf, flen); + } + OPENSSL_cleanse(tmpbuf, flen); OPENSSL_free(tmpbuf); return flen; |