diff options
| author | Richard Levitte <levitte@openssl.org> | 2023-10-20 09:18:19 +0200 |
|---|---|---|
| committer | Hugo Landau <hlandau@openssl.org> | 2023-11-06 07:54:30 +0000 |
| commit | db925ae2e65d0d925adef429afc37f75bd1c2017 (patch) | |
| tree | 724a7427ca1edc0cb5e065cd8065aec6a1299ad3 /include | |
| parent | b37871cd0a4290cbaba9464856a7f17f26d1c30a (diff) | |
Make DH_check_pub_key() and DH_generate_key() safer yet
We already check for an excessively large P in DH_generate_key(), but not in
DH_check_pub_key(), and none of them check for an excessively large Q.
This change adds all the missing excessive size checks of P and Q.
It's to be noted that behaviours surrounding excessively sized P and Q
differ. DH_check() raises an error on the excessively sized P, but only
sets a flag for the excessively sized Q. This behaviour is mimicked in
DH_check_pub_key().
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/22518)
(cherry picked from commit ddeb4b6c6d527e54ce9a99cba785c0f7776e54b6)
Diffstat (limited to 'include')
| -rw-r--r-- | include/crypto/dherr.h | 2 | ||||
| -rw-r--r-- | include/openssl/dh.h | 6 | ||||
| -rw-r--r-- | include/openssl/dherr.h | 3 |
3 files changed, 6 insertions, 5 deletions
diff --git a/include/crypto/dherr.h b/include/crypto/dherr.h index bb24d131eb..519327f795 100644 --- a/include/crypto/dherr.h +++ b/include/crypto/dherr.h @@ -1,6 +1,6 @@ /* * Generated by util/mkerr.pl DO NOT EDIT - * Copyright 2020-2021 The OpenSSL Project Authors. All Rights Reserved. + * Copyright 2020-2023 The OpenSSL Project Authors. All Rights Reserved. * * Licensed under the Apache License 2.0 (the "License"). You may not use * this file except in compliance with the License. You can obtain a copy diff --git a/include/openssl/dh.h b/include/openssl/dh.h index 6533260f20..50e0cf54be 100644 --- a/include/openssl/dh.h +++ b/include/openssl/dh.h @@ -141,7 +141,7 @@ DECLARE_ASN1_ITEM(DHparams) # define DH_GENERATOR_3 3 # define DH_GENERATOR_5 5 -/* DH_check error codes */ +/* DH_check error codes, some of them shared with DH_check_pub_key */ /* * NB: These values must align with the equivalently named macros in * internal/ffc.h. @@ -151,10 +151,10 @@ DECLARE_ASN1_ITEM(DHparams) # define DH_UNABLE_TO_CHECK_GENERATOR 0x04 # define DH_NOT_SUITABLE_GENERATOR 0x08 # define DH_CHECK_Q_NOT_PRIME 0x10 -# define DH_CHECK_INVALID_Q_VALUE 0x20 +# define DH_CHECK_INVALID_Q_VALUE 0x20 /* +DH_check_pub_key */ # define DH_CHECK_INVALID_J_VALUE 0x40 # define DH_MODULUS_TOO_SMALL 0x80 -# define DH_MODULUS_TOO_LARGE 0x100 +# define DH_MODULUS_TOO_LARGE 0x100 /* +DH_check_pub_key */ /* DH_check_pub_key error codes */ # define DH_CHECK_PUBKEY_TOO_SMALL 0x01 diff --git a/include/openssl/dherr.h b/include/openssl/dherr.h index 5d2a762a96..074a70145f 100644 --- a/include/openssl/dherr.h +++ b/include/openssl/dherr.h @@ -1,6 +1,6 @@ /* * Generated by util/mkerr.pl DO NOT EDIT - * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved. + * Copyright 1995-2023 The OpenSSL Project Authors. All Rights Reserved. * * Licensed under the Apache License 2.0 (the "License"). You may not use * this file except in compliance with the License. You can obtain a copy @@ -50,6 +50,7 @@ # define DH_R_NO_PRIVATE_VALUE 100 # define DH_R_PARAMETER_ENCODING_ERROR 105 # define DH_R_PEER_KEY_ERROR 111 +# define DH_R_Q_TOO_LARGE 130 # define DH_R_SHARED_INFO_ERROR 113 # define DH_R_UNABLE_TO_CHECK_GENERATOR 121 |