diff options
Diffstat (limited to 'doc/crypto')
| -rw-r--r-- | doc/crypto/CMS_decrypt.pod | 16 | ||||
| -rw-r--r-- | doc/crypto/CONF_modules_free.pod | 2 | ||||
| -rw-r--r-- | doc/crypto/CONF_modules_load_file.pod | 2 | ||||
| -rw-r--r-- | doc/crypto/OPENSSL_config.pod | 2 | ||||
| -rw-r--r-- | doc/crypto/X509_NAME_ENTRY_get_object.pod | 2 | ||||
| -rw-r--r-- | doc/crypto/X509_STORE_CTX_get_ex_new_index.pod | 2 |
6 files changed, 20 insertions, 6 deletions
diff --git a/doc/crypto/CMS_decrypt.pod b/doc/crypto/CMS_decrypt.pod index d857e4f93f6eb..3fa9212af32cf 100644 --- a/doc/crypto/CMS_decrypt.pod +++ b/doc/crypto/CMS_decrypt.pod @@ -27,7 +27,21 @@ function or errors about unknown algorithms will occur. Although the recipients certificate is not needed to decrypt the data it is needed to locate the appropriate (of possible several) recipients in the CMS -structure. If B<cert> is set to NULL all possible recipients are tried. +structure. + +If B<cert> is set to NULL all possible recipients are tried. This case however +is problematic. To thwart the MMA attack (Bleichenbacher's attack on +PKCS #1 v1.5 RSA padding) all recipients are tried whether they succeed or +not. If no recipient succeeds then a random symmetric key is used to decrypt +the content: this will typically output garbage and may (but is not guaranteed +to) ultimately return a padding error only. If CMS_decrypt() just returned an +error when all recipient encrypted keys failed to decrypt an attacker could +use this in a timing attack. If the special flag B<CMS_DEBUG_DECRYPT> is set +then the above behaviour is modified and an error B<is> returned if no +recipient encrypted key can be decrypted B<without> generating a random +content encryption key. Applications should use this flag with +B<extreme caution> especially in automated gateways as it can leave them +open to attack. It is possible to determine the correct recipient key by other means (for example looking them up in a database) and setting them in the CMS structure diff --git a/doc/crypto/CONF_modules_free.pod b/doc/crypto/CONF_modules_free.pod index 87bc7b783c9e6..347020c5fe702 100644 --- a/doc/crypto/CONF_modules_free.pod +++ b/doc/crypto/CONF_modules_free.pod @@ -37,7 +37,7 @@ None of the functions return a value. =head1 SEE ALSO L<conf(5)|conf(5)>, L<OPENSSL_config(3)|OPENSSL_config(3)>, -L<CONF_modules_load_file(3), CONF_modules_load_file(3)> +L<CONF_modules_load_file(3)|CONF_modules_load_file(3)> =head1 HISTORY diff --git a/doc/crypto/CONF_modules_load_file.pod b/doc/crypto/CONF_modules_load_file.pod index 9965d69bf2ecc..0c4d926858fb3 100644 --- a/doc/crypto/CONF_modules_load_file.pod +++ b/doc/crypto/CONF_modules_load_file.pod @@ -51,7 +51,7 @@ return value of the failing module (this will always be zero or negative). =head1 SEE ALSO L<conf(5)|conf(5)>, L<OPENSSL_config(3)|OPENSSL_config(3)>, -L<CONF_free(3), CONF_free(3)>, L<err(3),err(3)> +L<CONF_free(3)|CONF_free(3)>, L<err(3)|err(3)> =head1 HISTORY diff --git a/doc/crypto/OPENSSL_config.pod b/doc/crypto/OPENSSL_config.pod index e7bba2aacae06..888de88f6bbf5 100644 --- a/doc/crypto/OPENSSL_config.pod +++ b/doc/crypto/OPENSSL_config.pod @@ -73,7 +73,7 @@ Neither OPENSSL_config() nor OPENSSL_no_config() return a value. =head1 SEE ALSO L<conf(5)|conf(5)>, L<CONF_load_modules_file(3)|CONF_load_modules_file(3)>, -L<CONF_modules_free(3),CONF_modules_free(3)> +L<CONF_modules_free(3)|CONF_modules_free(3)> =head1 HISTORY diff --git a/doc/crypto/X509_NAME_ENTRY_get_object.pod b/doc/crypto/X509_NAME_ENTRY_get_object.pod index 41902c0d45537..4716e7ee7542d 100644 --- a/doc/crypto/X509_NAME_ENTRY_get_object.pod +++ b/doc/crypto/X509_NAME_ENTRY_get_object.pod @@ -65,7 +65,7 @@ set first so the relevant field information can be looked up internally. =head1 SEE ALSO L<ERR_get_error(3)|ERR_get_error(3)>, L<d2i_X509_NAME(3)|d2i_X509_NAME(3)>, -L<OBJ_nid2obj(3),OBJ_nid2obj(3)> +L<OBJ_nid2obj(3)|OBJ_nid2obj(3)> =head1 HISTORY diff --git a/doc/crypto/X509_STORE_CTX_get_ex_new_index.pod b/doc/crypto/X509_STORE_CTX_get_ex_new_index.pod index 8d6b9dda47e7b..8a9243d75613d 100644 --- a/doc/crypto/X509_STORE_CTX_get_ex_new_index.pod +++ b/doc/crypto/X509_STORE_CTX_get_ex_new_index.pod @@ -15,7 +15,7 @@ X509_STORE_CTX_get_ex_new_index, X509_STORE_CTX_set_ex_data, X509_STORE_CTX_get_ int X509_STORE_CTX_set_ex_data(X509_STORE_CTX *d, int idx, void *arg); - char *X509_STORE_CTX_get_ex_data(X509_STORE_CTX *d, int idx); + void *X509_STORE_CTX_get_ex_data(X509_STORE_CTX *d, int idx); =head1 DESCRIPTION |