[v5,06/12] cryptodev: add elliptic curve diffie hellman

Message ID 20220601090249.86865-7-arkadiuszx.kusztal@intel.com (mailing list archive)
State Accepted, archived
Delegated to: akhil goyal
Headers
Series cryptodev: rsa, dh, ecdh changes |

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Arkadiusz Kusztal June 1, 2022, 9:02 a.m. UTC
  - Added elliptic curve Diffie-Hellman parameters.
Point multiplication allows the user to process every phase of
ECDH, but for phase 1, user should not really care about the generator.
The user does not even need to know what the generator looks like,
therefore setting ec xform would make this work.

Signed-off-by: Arek Kusztal <arkadiuszx.kusztal@intel.com>
---
 devtools/libabigail.abignore               |  3 +++
 doc/guides/cryptodevs/features/default.ini |  1 +
 doc/guides/prog_guide/cryptodev_lib.rst    |  7 +++---
 doc/guides/rel_notes/release_22_07.rst     |  2 ++
 lib/cryptodev/rte_crypto_asym.h            | 38 ++++++++++++++++++++++++++++++
 5 files changed, 48 insertions(+), 3 deletions(-)
  

Comments

Arkadiusz Kusztal June 1, 2022, 10:14 a.m. UTC | #1
Hi Akhil,

I did not put much effort into documentation part. I believe it needs bit more attention in asym area (one bigger patch) + backported fixes about ECDSA and ECPM.

> -----Original Message-----
> From: Kusztal, ArkadiuszX <arkadiuszx.kusztal@intel.com>
> Sent: Wednesday, June 1, 2022 11:03 AM
> To: dev@dpdk.org
> Cc: gakhil@marvell.com; Zhang, Roy Fan <roy.fan.zhang@intel.com>; Kusztal,
> ArkadiuszX <arkadiuszx.kusztal@intel.com>
> Subject: [PATCH v5 06/12] cryptodev: add elliptic curve diffie hellman
> 
> - Added elliptic curve Diffie-Hellman parameters.
> Point multiplication allows the user to process every phase of ECDH, but for
> phase 1, user should not really care about the generator.
> The user does not even need to know what the generator looks like, therefore
> setting ec xform would make this work.
> 
> Signed-off-by: Arek Kusztal <arkadiuszx.kusztal@intel.com>
> ---
>  devtools/libabigail.abignore               |  3 +++
>  doc/guides/cryptodevs/features/default.ini |  1 +
>  doc/guides/prog_guide/cryptodev_lib.rst    |  7 +++---
>  doc/guides/rel_notes/release_22_07.rst     |  2 ++
>  lib/cryptodev/rte_crypto_asym.h            | 38
> ++++++++++++++++++++++++++++++
>  5 files changed, 48 insertions(+), 3 deletions(-)
> 
> diff --git a/devtools/libabigail.abignore b/devtools/libabigail.abignore index
> 79ff15dc4e..6d174b291f 100644
> --- a/devtools/libabigail.abignore
> +++ b/devtools/libabigail.abignore
> @@ -27,6 +27,9 @@
>  ; Ignore changes to rte_crypto_asym_op, asymmetric crypto API is
> experimental  [suppress_type]
>          name = rte_crypto_asym_op
> +; Ignore changes to rte_crypto_asym_xform_type, asymmetric crypto API
> +is experimental [suppress_type]
> +        name = rte_crypto_asym_xform_type
> 
>  ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
>  ; Temporary exceptions till next major ABI version ; diff --git
> a/doc/guides/cryptodevs/features/default.ini
> b/doc/guides/cryptodevs/features/default.ini
> index 018fe0221e..7371ca6644 100644
> --- a/doc/guides/cryptodevs/features/default.ini
> +++ b/doc/guides/cryptodevs/features/default.ini
> @@ -118,6 +118,7 @@ Modular Inversion       =
>  Diffie-hellman          =
>  ECDSA                   =
>  ECPM                    =
> +ECDH                    =
> 
>  ;
>  ; Supported Operating systems of a default crypto driver.
> diff --git a/doc/guides/prog_guide/cryptodev_lib.rst
> b/doc/guides/prog_guide/cryptodev_lib.rst
> index edd11059bc..9e54683aa1 100644
> --- a/doc/guides/prog_guide/cryptodev_lib.rst
> +++ b/doc/guides/prog_guide/cryptodev_lib.rst
> @@ -1018,9 +1018,9 @@ Asymmetric Cryptography
>  -----------------------
> 
>  The cryptodev library currently provides support for the following asymmetric -
> Crypto operations; RSA, Modular exponentiation and inversion, Diffie-Hellman -
> public and/or private key generation and shared secret compute, DSA Signature -
> generation and verification.
> +Crypto operations; RSA, Modular exponentiation and inversion,
> +Diffie-Hellman and Elliptic Curve Diffie-Hellman public and/or private
> +key generation and shared secret compute, DSA Signature generation and
> verification.
> 
>  Session and Session Management
>  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> @@ -1088,6 +1088,7 @@ Each xform defines specific asymmetric crypto algo.
> Currently supported are:
>  * Modular operations (Exponentiation and Inverse)
>  * Diffie-Hellman
>  * DSA
> +* Elliptic Curve Diffie-Hellman
>  * None - special case where PMD may support a passthrough mode. More for
> diagnostic purpose
> 
>  See *DPDK API Reference* for details on each rte_crypto_xxx_xform struct diff
> --git a/doc/guides/rel_notes/release_22_07.rst
> b/doc/guides/rel_notes/release_22_07.rst
> index 73a2434f86..ef6eaf0ad2 100644
> --- a/doc/guides/rel_notes/release_22_07.rst
> +++ b/doc/guides/rel_notes/release_22_07.rst
> @@ -130,6 +130,8 @@ Removed Items
>  API Changes
>  -----------
> 
> +* cryptodev: Added Elliptic Curve Diffie-Hellman (ECDH) algorithm.
> +
>  .. This section should contain API changes. Sample format:
> 
>     * sample: Add a short 1-2 sentence description of the API change diff --git
> a/lib/cryptodev/rte_crypto_asym.h b/lib/cryptodev/rte_crypto_asym.h index
> 88bc34dc8c..f61a2ddce8 100644
> --- a/lib/cryptodev/rte_crypto_asym.h
> +++ b/lib/cryptodev/rte_crypto_asym.h
> @@ -99,6 +99,8 @@ enum rte_crypto_asym_xform_type {
>  	/**< Elliptic Curve Digital Signature Algorithm
>  	 * Perform Signature Generation and Verification.
>  	 */
> +	RTE_CRYPTO_ASYM_XFORM_ECDH,
> +	/**< Elliptic Curve Diffie Hellman */
>  	RTE_CRYPTO_ASYM_XFORM_ECPM,
>  	/**< Elliptic Curve Point Multiplication */
>  	RTE_CRYPTO_ASYM_XFORM_TYPE_LIST_END
> @@ -429,6 +431,41 @@ struct rte_crypto_dh_op_param {  };
> 
>  /**
> + * Elliptic Curve Diffie-Hellman Operations params.
> + */
> +struct rte_crypto_ecdh_op_param {
> +	enum rte_crypto_asym_ke_type ke_type;
> +	/**< Key exchange operation type */
> +	rte_crypto_uint priv_key;
> +	/**<
> +	 * Output - generated private key when ke_type is
> +	 * RTE_CRYPTO_ASYM_KE_PRIVATE_KEY_GENERATE.
> +	 *
> +	 * Input - private key when ke_type is one of:
> +	 * RTE_CRYPTO_ASYM_KE_PUBLIC_KEY_GENERATE,
> +	 * RTE_CRYPTO_ASYM_KE_SHARED_SECRET_COMPUTE.
> +	 *
> +	 * In case priv_key.length is 0 and ke_type is set with
> +	 * RTE_CRYPTO_ASYM_KE_PUBLIC_KEY_GENERATE, CSRNG capable
> +	 * device will generate private key and use it for public
> +	 * key generation.
> +	 */
> +	struct rte_crypto_ec_point pub_key;
> +	/**<
> +	 * Output - generated public key when ke_type is
> +	 * RTE_CRYPTO_ASYM_KE_PUBLIC_KEY_GENERATE.
> +	 *
> +	 * Input - peer's public key when ke_type is
> +	 * RTE_CRYPTO_ASYM_KE_SHARED_SECRET_COMPUTE.
> +	 */
> +	struct rte_crypto_ec_point shared_secret;
> +	/**<
> +	 * Output - calculated shared secret when ke_type is
> +	 * RTE_CRYPTO_ASYM_KE_SHARED_SECRET_COMPUTE.
> +	 */
> +};
> +
> +/**
>   * DSA Operations params
>   *
>   */
> @@ -566,6 +603,7 @@ struct rte_crypto_asym_op {
>  		struct rte_crypto_mod_op_param modex;
>  		struct rte_crypto_mod_op_param modinv;
>  		struct rte_crypto_dh_op_param dh;
> +		struct rte_crypto_ecdh_op_param ecdh;
>  		struct rte_crypto_dsa_op_param dsa;
>  		struct rte_crypto_ecdsa_op_param ecdsa;
>  		struct rte_crypto_ecpm_op_param ecpm;
> --
> 2.13.6
  
Akhil Goyal June 2, 2022, 1:33 p.m. UTC | #2
> - Added elliptic curve Diffie-Hellman parameters.
> Point multiplication allows the user to process every phase of
> ECDH, but for phase 1, user should not really care about the generator.
> The user does not even need to know what the generator looks like,
> therefore setting ec xform would make this work.
> 
> Signed-off-by: Arek Kusztal <arkadiuszx.kusztal@intel.com>
> ---
>  devtools/libabigail.abignore               |  3 +++
>  doc/guides/cryptodevs/features/default.ini |  1 +
>  doc/guides/prog_guide/cryptodev_lib.rst    |  7 +++---
>  doc/guides/rel_notes/release_22_07.rst     |  2 ++
>  lib/cryptodev/rte_crypto_asym.h            | 38
> ++++++++++++++++++++++++++++++
>  5 files changed, 48 insertions(+), 3 deletions(-)
> 
> diff --git a/devtools/libabigail.abignore b/devtools/libabigail.abignore
> index 79ff15dc4e..6d174b291f 100644
> --- a/devtools/libabigail.abignore
> +++ b/devtools/libabigail.abignore
> @@ -27,6 +27,9 @@
>  ; Ignore changes to rte_crypto_asym_op, asymmetric crypto API is
> experimental
>  [suppress_type]
>          name = rte_crypto_asym_op
> +; Ignore changes to rte_crypto_asym_xform_type, asymmetric crypto API is
> experimental
> +[suppress_type]
> +        name = rte_crypto_asym_xform_type
> 
This exception does not seem to work.
Thomas and I are getting ABI issues even with this suppress rule.

  [C] 'function void rte_cryptodev_info_get(uint8_t, rte_cryptodev_info*)' at rte_cryptodev.c:1582:1 has some indirect sub-type changes:
    parameter 2 of type 'rte_cryptodev_info*' has sub-type changes:
      in pointed to type 'struct rte_cryptodev_info' at rte_cryptodev.h:503:1:
        type size hasn't changed
        1 data member change:
          type of 'const rte_cryptodev_capabilities* capabilities' changed:
            in pointed to type 'const rte_cryptodev_capabilities':
              in unqualified underlying type 'struct rte_cryptodev_capabilities' at rte_cryptodev.h:198:1:
                type size hasn't changed
                1 data member change:
                  type of 'anonymous data member union {rte_cryptodev_symmetric_capability sym; rte_cryptodev_asymmetric_capability asym;}' changed:
                    type size hasn't changed
                    1 data member change:
                      type of 'rte_cryptodev_asymmetric_capability asym' changed:
                        type size hasn't changed
                        1 data member change:
                          type of 'rte_cryptodev_asymmetric_xform_capability xform_capa' changed:
                            type size hasn't changed
                            1 data member change:
                              type of 'rte_crypto_asym_xform_type xform_type' changed:
                                type size hasn't changed
                                1 enumerator insertion:
                                  'rte_crypto_asym_xform_type::RTE_CRYPTO_ASYM_XFORM_ECDH' value '8'
                                2 enumerator changes:
                                  'rte_crypto_asym_xform_type::RTE_CRYPTO_ASYM_XFORM_ECPM' from value '8' to '9' at rte_crypto_asym.h:80:1
                                  'rte_crypto_asym_xform_type::RTE_CRYPTO_ASYM_XFORM_TYPE_LIST_END' from value '9' to '10' at rte_crypto_asym.h:80:1
  
Ray Kinsella June 2, 2022, 2:21 p.m. UTC | #3
Akhil Goyal <gakhil@marvell.com> writes:

>> - Added elliptic curve Diffie-Hellman parameters.
>> Point multiplication allows the user to process every phase of
>> ECDH, but for phase 1, user should not really care about the generator.
>> The user does not even need to know what the generator looks like,
>> therefore setting ec xform would make this work.
>> 
>> Signed-off-by: Arek Kusztal <arkadiuszx.kusztal@intel.com>
>> ---
>>  devtools/libabigail.abignore               |  3 +++
>>  doc/guides/cryptodevs/features/default.ini |  1 +
>>  doc/guides/prog_guide/cryptodev_lib.rst    |  7 +++---
>>  doc/guides/rel_notes/release_22_07.rst     |  2 ++
>>  lib/cryptodev/rte_crypto_asym.h            | 38
>> ++++++++++++++++++++++++++++++
>>  5 files changed, 48 insertions(+), 3 deletions(-)
>> 
>> diff --git a/devtools/libabigail.abignore b/devtools/libabigail.abignore
>> index 79ff15dc4e..6d174b291f 100644
>> --- a/devtools/libabigail.abignore
>> +++ b/devtools/libabigail.abignore
>> @@ -27,6 +27,9 @@
>>  ; Ignore changes to rte_crypto_asym_op, asymmetric crypto API is
>> experimental
>>  [suppress_type]
>>          name = rte_crypto_asym_op
>> +; Ignore changes to rte_crypto_asym_xform_type, asymmetric crypto API is
>> experimental
>> +[suppress_type]
>> +        name = rte_crypto_asym_xform_type
>> 
> This exception does not seem to work.
> Thomas and I are getting ABI issues even with this suppress rule.
>
>   [C] 'function void rte_cryptodev_info_get(uint8_t, rte_cryptodev_info*)' at rte_cryptodev.c:1582:1 has some indirect sub-type changes:
>     parameter 2 of type 'rte_cryptodev_info*' has sub-type changes:
>       in pointed to type 'struct rte_cryptodev_info' at rte_cryptodev.h:503:1:
>         type size hasn't changed
>         1 data member change:
>           type of 'const rte_cryptodev_capabilities* capabilities' changed:
>             in pointed to type 'const rte_cryptodev_capabilities':
>               in unqualified underlying type 'struct rte_cryptodev_capabilities' at rte_cryptodev.h:198:1:
>                 type size hasn't changed
>                 1 data member change:
>                   type of 'anonymous data member union {rte_cryptodev_symmetric_capability sym; rte_cryptodev_asymmetric_capability asym;}' changed:
>                     type size hasn't changed
>                     1 data member change:
>                       type of 'rte_cryptodev_asymmetric_capability asym' changed:
>                         type size hasn't changed
>                         1 data member change:
>                           type of 'rte_cryptodev_asymmetric_xform_capability xform_capa' changed:
>                             type size hasn't changed
>                             1 data member change:
>                               type of 'rte_crypto_asym_xform_type xform_type' changed:
>                                 type size hasn't changed
>                                 1 enumerator insertion:
>                                   'rte_crypto_asym_xform_type::RTE_CRYPTO_ASYM_XFORM_ECDH' value '8'
>                                 2 enumerator changes:
>                                   'rte_crypto_asym_xform_type::RTE_CRYPTO_ASYM_XFORM_ECPM' from value '8' to '9' at rte_crypto_asym.h:80:1
>                                   'rte_crypto_asym_xform_type::RTE_CRYPTO_ASYM_XFORM_TYPE_LIST_END' from value '9' to '10' at rte_crypto_asym.h:80:1

Ok - will take a look see.
  
Akhil Goyal June 2, 2022, 2:25 p.m. UTC | #4
> 
> Akhil Goyal <gakhil@marvell.com> writes:
> 
> >> - Added elliptic curve Diffie-Hellman parameters.
> >> Point multiplication allows the user to process every phase of
> >> ECDH, but for phase 1, user should not really care about the generator.
> >> The user does not even need to know what the generator looks like,
> >> therefore setting ec xform would make this work.
> >>
> >> Signed-off-by: Arek Kusztal <arkadiuszx.kusztal@intel.com>
> >> ---
> >>  devtools/libabigail.abignore               |  3 +++
> >>  doc/guides/cryptodevs/features/default.ini |  1 +
> >>  doc/guides/prog_guide/cryptodev_lib.rst    |  7 +++---
> >>  doc/guides/rel_notes/release_22_07.rst     |  2 ++
> >>  lib/cryptodev/rte_crypto_asym.h            | 38
> >> ++++++++++++++++++++++++++++++
> >>  5 files changed, 48 insertions(+), 3 deletions(-)
> >>
> >> diff --git a/devtools/libabigail.abignore b/devtools/libabigail.abignore
> >> index 79ff15dc4e..6d174b291f 100644
> >> --- a/devtools/libabigail.abignore
> >> +++ b/devtools/libabigail.abignore
> >> @@ -27,6 +27,9 @@
> >>  ; Ignore changes to rte_crypto_asym_op, asymmetric crypto API is
> >> experimental
> >>  [suppress_type]
> >>          name = rte_crypto_asym_op
> >> +; Ignore changes to rte_crypto_asym_xform_type, asymmetric crypto API is
> >> experimental
> >> +[suppress_type]
> >> +        name = rte_crypto_asym_xform_type
> >>
> > This exception does not seem to work.
> > Thomas and I are getting ABI issues even with this suppress rule.
> >
> >   [C] 'function void rte_cryptodev_info_get(uint8_t, rte_cryptodev_info*)' at
> rte_cryptodev.c:1582:1 has some indirect sub-type changes:
> >     parameter 2 of type 'rte_cryptodev_info*' has sub-type changes:
> >       in pointed to type 'struct rte_cryptodev_info' at rte_cryptodev.h:503:1:
> >         type size hasn't changed
> >         1 data member change:
> >           type of 'const rte_cryptodev_capabilities* capabilities' changed:
> >             in pointed to type 'const rte_cryptodev_capabilities':
> >               in unqualified underlying type 'struct rte_cryptodev_capabilities' at
> rte_cryptodev.h:198:1:
> >                 type size hasn't changed
> >                 1 data member change:
> >                   type of 'anonymous data member union
> {rte_cryptodev_symmetric_capability sym;
> rte_cryptodev_asymmetric_capability asym;}' changed:
> >                     type size hasn't changed
> >                     1 data member change:
> >                       type of 'rte_cryptodev_asymmetric_capability asym' changed:
> >                         type size hasn't changed
> >                         1 data member change:
> >                           type of 'rte_cryptodev_asymmetric_xform_capability
> xform_capa' changed:
> >                             type size hasn't changed
> >                             1 data member change:
> >                               type of 'rte_crypto_asym_xform_type xform_type' changed:
> >                                 type size hasn't changed
> >                                 1 enumerator insertion:
> >
> 'rte_crypto_asym_xform_type::RTE_CRYPTO_ASYM_XFORM_ECDH' value '8'
> >                                 2 enumerator changes:
> >
> 'rte_crypto_asym_xform_type::RTE_CRYPTO_ASYM_XFORM_ECPM' from value
> '8' to '9' at rte_crypto_asym.h:80:1
> >
> 'rte_crypto_asym_xform_type::RTE_CRYPTO_ASYM_XFORM_TYPE_LIST_END'
> from value '9' to '10' at rte_crypto_asym.h:80:1
> 
> Ok - will take a look see.
Thomas has fixed the suppress rule while pulling on main.
  
Arkadiusz Kusztal June 2, 2022, 2:46 p.m. UTC | #5
> -----Original Message-----
> From: Akhil Goyal <gakhil@marvell.com>
> Sent: Thursday, June 2, 2022 4:25 PM
> To: Ray Kinsella <mdr@ashroe.eu>
> Cc: Kusztal, ArkadiuszX <arkadiuszx.kusztal@intel.com>; dev@dpdk.org; Zhang,
> Roy Fan <roy.fan.zhang@intel.com>
> Subject: RE: [EXT] [PATCH v5 06/12] cryptodev: add elliptic curve diffie hellman
> 
> >
> > Akhil Goyal <gakhil@marvell.com> writes:
> >
> > >> - Added elliptic curve Diffie-Hellman parameters.
> > >> Point multiplication allows the user to process every phase of
> > >> ECDH, but for phase 1, user should not really care about the generator.
> > >> The user does not even need to know what the generator looks like,
> > >> therefore setting ec xform would make this work.
> > >>
> > >> Signed-off-by: Arek Kusztal <arkadiuszx.kusztal@intel.com>
> > >> ---
> > >>  devtools/libabigail.abignore               |  3 +++
> > >>  doc/guides/cryptodevs/features/default.ini |  1 +
> > >>  doc/guides/prog_guide/cryptodev_lib.rst    |  7 +++---
> > >>  doc/guides/rel_notes/release_22_07.rst     |  2 ++
> > >>  lib/cryptodev/rte_crypto_asym.h            | 38
> > >> ++++++++++++++++++++++++++++++
> > >>  5 files changed, 48 insertions(+), 3 deletions(-)
> > >>
> > >> diff --git a/devtools/libabigail.abignore
> > >> b/devtools/libabigail.abignore index 79ff15dc4e..6d174b291f 100644
> > >> --- a/devtools/libabigail.abignore
> > >> +++ b/devtools/libabigail.abignore
> > >> @@ -27,6 +27,9 @@
> > >>  ; Ignore changes to rte_crypto_asym_op, asymmetric crypto API is
> > >> experimental  [suppress_type]
> > >>          name = rte_crypto_asym_op
> > >> +; Ignore changes to rte_crypto_asym_xform_type, asymmetric crypto
> > >> +API is
> > >> experimental
> > >> +[suppress_type]
> > >> +        name = rte_crypto_asym_xform_type
> > >>
> > > This exception does not seem to work.
> > > Thomas and I are getting ABI issues even with this suppress rule.
> > >
> > >   [C] 'function void rte_cryptodev_info_get(uint8_t,
> > > rte_cryptodev_info*)' at
> > rte_cryptodev.c:1582:1 has some indirect sub-type changes:
> > >     parameter 2 of type 'rte_cryptodev_info*' has sub-type changes:
> > >       in pointed to type 'struct rte_cryptodev_info' at rte_cryptodev.h:503:1:
> > >         type size hasn't changed
> > >         1 data member change:
> > >           type of 'const rte_cryptodev_capabilities* capabilities' changed:
> > >             in pointed to type 'const rte_cryptodev_capabilities':
> > >               in unqualified underlying type 'struct
> > > rte_cryptodev_capabilities' at
> > rte_cryptodev.h:198:1:
> > >                 type size hasn't changed
> > >                 1 data member change:
> > >                   type of 'anonymous data member union
> > {rte_cryptodev_symmetric_capability sym;
> > rte_cryptodev_asymmetric_capability asym;}' changed:
> > >                     type size hasn't changed
> > >                     1 data member change:
> > >                       type of 'rte_cryptodev_asymmetric_capability asym' changed:
> > >                         type size hasn't changed
> > >                         1 data member change:
> > >                           type of
> > > 'rte_cryptodev_asymmetric_xform_capability
> > xform_capa' changed:
> > >                             type size hasn't changed
> > >                             1 data member change:
> > >                               type of 'rte_crypto_asym_xform_type xform_type' changed:
> > >                                 type size hasn't changed
> > >                                 1 enumerator insertion:
> > >
> > 'rte_crypto_asym_xform_type::RTE_CRYPTO_ASYM_XFORM_ECDH' value '8'
> > >                                 2 enumerator changes:
> > >
> > 'rte_crypto_asym_xform_type::RTE_CRYPTO_ASYM_XFORM_ECPM' from
> value
> > '8' to '9' at rte_crypto_asym.h:80:1
> > >
> > 'rte_crypto_asym_xform_type::RTE_CRYPTO_ASYM_XFORM_TYPE_LIST_END'
> > from value '9' to '10' at rte_crypto_asym.h:80:1
> >
> > Ok - will take a look see.
> Thomas has fixed the suppress rule while pulling on main.

For some unknown reason both:
[suppress_type]
        type_kind = enum
        changed_enumerators = RTE_CRYPTO_ASYM_XFORM_ECPM, RTE_CRYPTO_ASYM_XFORM_TYPE_LIST_END
and
[suppress_type]
       name = rte_crypto_asym_xform_type

works fine for me with check-abi tool:
{DPDK_NEW}/devtools/check-abi.sh ${DPDK_REF}/build/ref ${DPDK_NEW}/build/new

Otherwise I get:

1 function with some indirect sub-type change:

  [C]'function void rte_cryptodev_info_get(uint8_t, rte_cryptodev_info*)' at rte_cryptodev.c:1582:1 has some indirect sub-type changes:
    parameter 2 of type 'rte_cryptodev_info*' has sub-type changes:	

abidiff: 1.2.0 version

@Akhil - additionally RTE_CRYPTO_ASYM_XFORM_ECDH was supposed to be placed at the end of the enum. My mistake, I have placed it incorrectly.
Would a fix that swaps these enums be accepted? This could potentially remove changed_enumerators = RTE_CRYPTO_ASYM_XFORM_ECPM.
  
Ray Kinsella June 3, 2022, 1:26 p.m. UTC | #6
"Kusztal, ArkadiuszX" <arkadiuszx.kusztal@intel.com> writes:

>> -----Original Message-----
>> From: Akhil Goyal <gakhil@marvell.com>
>> Sent: Thursday, June 2, 2022 4:25 PM
>> To: Ray Kinsella <mdr@ashroe.eu>
>> Cc: Kusztal, ArkadiuszX <arkadiuszx.kusztal@intel.com>; dev@dpdk.org; Zhang,
>> Roy Fan <roy.fan.zhang@intel.com>
>> Subject: RE: [EXT] [PATCH v5 06/12] cryptodev: add elliptic curve diffie hellman
>> 
>> >
>> > Akhil Goyal <gakhil@marvell.com> writes:
>> >
>> > >> - Added elliptic curve Diffie-Hellman parameters.
>> > >> Point multiplication allows the user to process every phase of
>> > >> ECDH, but for phase 1, user should not really care about the generator.
>> > >> The user does not even need to know what the generator looks like,
>> > >> therefore setting ec xform would make this work.
>> > >>
>> > >> Signed-off-by: Arek Kusztal <arkadiuszx.kusztal@intel.com>
>> > >> ---
>> > >>  devtools/libabigail.abignore               |  3 +++
>> > >>  doc/guides/cryptodevs/features/default.ini |  1 +
>> > >>  doc/guides/prog_guide/cryptodev_lib.rst    |  7 +++---
>> > >>  doc/guides/rel_notes/release_22_07.rst     |  2 ++
>> > >>  lib/cryptodev/rte_crypto_asym.h            | 38
>> > >> ++++++++++++++++++++++++++++++
>> > >>  5 files changed, 48 insertions(+), 3 deletions(-)
>> > >>
>> > >> diff --git a/devtools/libabigail.abignore
>> > >> b/devtools/libabigail.abignore index 79ff15dc4e..6d174b291f 100644
>> > >> --- a/devtools/libabigail.abignore
>> > >> +++ b/devtools/libabigail.abignore
>> > >> @@ -27,6 +27,9 @@
>> > >>  ; Ignore changes to rte_crypto_asym_op, asymmetric crypto API is
>> > >> experimental  [suppress_type]
>> > >>          name = rte_crypto_asym_op
>> > >> +; Ignore changes to rte_crypto_asym_xform_type, asymmetric crypto
>> > >> +API is
>> > >> experimental
>> > >> +[suppress_type]
>> > >> +        name = rte_crypto_asym_xform_type
>> > >>
>> > > This exception does not seem to work.
>> > > Thomas and I are getting ABI issues even with this suppress rule.
>> > >
>> > >   [C] 'function void rte_cryptodev_info_get(uint8_t,
>> > > rte_cryptodev_info*)' at
>> > rte_cryptodev.c:1582:1 has some indirect sub-type changes:
>> > >     parameter 2 of type 'rte_cryptodev_info*' has sub-type changes:
>> > >       in pointed to type 'struct rte_cryptodev_info' at rte_cryptodev.h:503:1:
>> > >         type size hasn't changed
>> > >         1 data member change:
>> > >           type of 'const rte_cryptodev_capabilities* capabilities' changed:
>> > >             in pointed to type 'const rte_cryptodev_capabilities':
>> > >               in unqualified underlying type 'struct
>> > > rte_cryptodev_capabilities' at
>> > rte_cryptodev.h:198:1:
>> > >                 type size hasn't changed
>> > >                 1 data member change:
>> > >                   type of 'anonymous data member union
>> > {rte_cryptodev_symmetric_capability sym;
>> > rte_cryptodev_asymmetric_capability asym;}' changed:
>> > >                     type size hasn't changed
>> > >                     1 data member change:
>> > >                       type of 'rte_cryptodev_asymmetric_capability asym' changed:
>> > >                         type size hasn't changed
>> > >                         1 data member change:
>> > >                           type of
>> > > 'rte_cryptodev_asymmetric_xform_capability
>> > xform_capa' changed:
>> > >                             type size hasn't changed
>> > >                             1 data member change:
>> > >                               type of 'rte_crypto_asym_xform_type xform_type' changed:
>> > >                                 type size hasn't changed
>> > >                                 1 enumerator insertion:
>> > >
>> > 'rte_crypto_asym_xform_type::RTE_CRYPTO_ASYM_XFORM_ECDH' value '8'
>> > >                                 2 enumerator changes:
>> > >
>> > 'rte_crypto_asym_xform_type::RTE_CRYPTO_ASYM_XFORM_ECPM' from
>> value
>> > '8' to '9' at rte_crypto_asym.h:80:1
>> > >
>> > 'rte_crypto_asym_xform_type::RTE_CRYPTO_ASYM_XFORM_TYPE_LIST_END'
>> > from value '9' to '10' at rte_crypto_asym.h:80:1
>> >
>> > Ok - will take a look see.
>> Thomas has fixed the suppress rule while pulling on main.
>
> For some unknown reason both:
> [suppress_type]
>         type_kind = enum
>         changed_enumerators = RTE_CRYPTO_ASYM_XFORM_ECPM, RTE_CRYPTO_ASYM_XFORM_TYPE_LIST_END
> and
> [suppress_type]
>        name = rte_crypto_asym_xform_type
>
> works fine for me with check-abi tool:
> {DPDK_NEW}/devtools/check-abi.sh ${DPDK_REF}/build/ref ${DPDK_NEW}/build/new
>
> Otherwise I get:
>
> 1 function with some indirect sub-type change:
>
>   [C]'function void rte_cryptodev_info_get(uint8_t, rte_cryptodev_info*)' at rte_cryptodev.c:1582:1 has some indirect sub-type changes:
>     parameter 2 of type 'rte_cryptodev_info*' has sub-type changes:	
>
> abidiff: 1.2.0 version

So like you with 1.2.0 I didn't see the error, with 2.0.0 I see the
following, so I recommend that you update to 2.0.0 or later. I had
inadvertently reverted versions after a system rebuild.

ninja: Entering directory `./build-gcc-static'
ninja: no work to do.
ninja: Entering directory `./build-gcc-shared'
ninja: no work to do.
Error: ABI issue reported for 'abidiff --suppr /root/src/dpdk/devtools/../devtools/libabigail.abignore --no-added-syms --headers-dir1 /root/src/dpdk/build_ref/v21.11/build-gcc-shared/usr/local/include --headers-dir2 /root/src/dpdk/build-gcc-shared/install/usr/local/include /root/src/dpdk/build_ref/v21.11/build-gcc-shared/dump/librte_cryptodev.dump /root/src/dpdk/build-gcc-shared/install/dump/librte_cryptodev.dump'
ABIDIFF_ABI_CHANGE, this change requires a review (abidiff flagged this as a potential issue).
Error: ABI issue reported for 'abidiff --suppr /root/src/dpdk/devtools/../devtools/libabigail.abignore --no-added-syms --headers-dir1 /root/src/dpdk/build_ref/v21.11/build-gcc-shared/usr/local/include --headers-dir2 /root/src/dpdk/build-gcc-shared/install/usr/local/include /root/src/dpdk/build_ref/v21.11/build-gcc-shared/dump/librte_security.dump /root/src/dpdk/build-gcc-shared/install/dump/librte_security.dump'
ABIDIFF_ABI_CHANGE, this change requires a review (abidiff flagged this as a potential issue).

Me thinks, we need to add a check for libabigail version to the build
scripts.

That all said, Thomas's supression rule has better percision than the
original proposed. 


> @Akhil - additionally RTE_CRYPTO_ASYM_XFORM_ECDH was supposed to be placed at the end of the enum. My mistake, I have placed it incorrectly.
> Would a fix that swaps these enums be accepted? This could potentially remove changed_enumerators = RTE_CRYPTO_ASYM_XFORM_ECPM.
  

Patch

diff --git a/devtools/libabigail.abignore b/devtools/libabigail.abignore
index 79ff15dc4e..6d174b291f 100644
--- a/devtools/libabigail.abignore
+++ b/devtools/libabigail.abignore
@@ -27,6 +27,9 @@ 
 ; Ignore changes to rte_crypto_asym_op, asymmetric crypto API is experimental
 [suppress_type]
         name = rte_crypto_asym_op
+; Ignore changes to rte_crypto_asym_xform_type, asymmetric crypto API is experimental
+[suppress_type]
+        name = rte_crypto_asym_xform_type
 
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ; Temporary exceptions till next major ABI version ;
diff --git a/doc/guides/cryptodevs/features/default.ini b/doc/guides/cryptodevs/features/default.ini
index 018fe0221e..7371ca6644 100644
--- a/doc/guides/cryptodevs/features/default.ini
+++ b/doc/guides/cryptodevs/features/default.ini
@@ -118,6 +118,7 @@  Modular Inversion       =
 Diffie-hellman          =
 ECDSA                   =
 ECPM                    =
+ECDH                    =
 
 ;
 ; Supported Operating systems of a default crypto driver.
diff --git a/doc/guides/prog_guide/cryptodev_lib.rst b/doc/guides/prog_guide/cryptodev_lib.rst
index edd11059bc..9e54683aa1 100644
--- a/doc/guides/prog_guide/cryptodev_lib.rst
+++ b/doc/guides/prog_guide/cryptodev_lib.rst
@@ -1018,9 +1018,9 @@  Asymmetric Cryptography
 -----------------------
 
 The cryptodev library currently provides support for the following asymmetric
-Crypto operations; RSA, Modular exponentiation and inversion, Diffie-Hellman
-public and/or private key generation and shared secret compute, DSA Signature
-generation and verification.
+Crypto operations; RSA, Modular exponentiation and inversion, Diffie-Hellman and
+Elliptic Curve Diffie-Hellman public and/or private key generation and shared
+secret compute, DSA Signature generation and verification.
 
 Session and Session Management
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -1088,6 +1088,7 @@  Each xform defines specific asymmetric crypto algo. Currently supported are:
 * Modular operations (Exponentiation and Inverse)
 * Diffie-Hellman
 * DSA
+* Elliptic Curve Diffie-Hellman
 * None - special case where PMD may support a passthrough mode. More for diagnostic purpose
 
 See *DPDK API Reference* for details on each rte_crypto_xxx_xform struct
diff --git a/doc/guides/rel_notes/release_22_07.rst b/doc/guides/rel_notes/release_22_07.rst
index 73a2434f86..ef6eaf0ad2 100644
--- a/doc/guides/rel_notes/release_22_07.rst
+++ b/doc/guides/rel_notes/release_22_07.rst
@@ -130,6 +130,8 @@  Removed Items
 API Changes
 -----------
 
+* cryptodev: Added Elliptic Curve Diffie-Hellman (ECDH) algorithm.
+
 .. This section should contain API changes. Sample format:
 
    * sample: Add a short 1-2 sentence description of the API change
diff --git a/lib/cryptodev/rte_crypto_asym.h b/lib/cryptodev/rte_crypto_asym.h
index 88bc34dc8c..f61a2ddce8 100644
--- a/lib/cryptodev/rte_crypto_asym.h
+++ b/lib/cryptodev/rte_crypto_asym.h
@@ -99,6 +99,8 @@  enum rte_crypto_asym_xform_type {
 	/**< Elliptic Curve Digital Signature Algorithm
 	 * Perform Signature Generation and Verification.
 	 */
+	RTE_CRYPTO_ASYM_XFORM_ECDH,
+	/**< Elliptic Curve Diffie Hellman */
 	RTE_CRYPTO_ASYM_XFORM_ECPM,
 	/**< Elliptic Curve Point Multiplication */
 	RTE_CRYPTO_ASYM_XFORM_TYPE_LIST_END
@@ -429,6 +431,41 @@  struct rte_crypto_dh_op_param {
 };
 
 /**
+ * Elliptic Curve Diffie-Hellman Operations params.
+ */
+struct rte_crypto_ecdh_op_param {
+	enum rte_crypto_asym_ke_type ke_type;
+	/**< Key exchange operation type */
+	rte_crypto_uint priv_key;
+	/**<
+	 * Output - generated private key when ke_type is
+	 * RTE_CRYPTO_ASYM_KE_PRIVATE_KEY_GENERATE.
+	 *
+	 * Input - private key when ke_type is one of:
+	 * RTE_CRYPTO_ASYM_KE_PUBLIC_KEY_GENERATE,
+	 * RTE_CRYPTO_ASYM_KE_SHARED_SECRET_COMPUTE.
+	 *
+	 * In case priv_key.length is 0 and ke_type is set with
+	 * RTE_CRYPTO_ASYM_KE_PUBLIC_KEY_GENERATE, CSRNG capable
+	 * device will generate private key and use it for public
+	 * key generation.
+	 */
+	struct rte_crypto_ec_point pub_key;
+	/**<
+	 * Output - generated public key when ke_type is
+	 * RTE_CRYPTO_ASYM_KE_PUBLIC_KEY_GENERATE.
+	 *
+	 * Input - peer's public key when ke_type is
+	 * RTE_CRYPTO_ASYM_KE_SHARED_SECRET_COMPUTE.
+	 */
+	struct rte_crypto_ec_point shared_secret;
+	/**<
+	 * Output - calculated shared secret when ke_type is
+	 * RTE_CRYPTO_ASYM_KE_SHARED_SECRET_COMPUTE.
+	 */
+};
+
+/**
  * DSA Operations params
  *
  */
@@ -566,6 +603,7 @@  struct rte_crypto_asym_op {
 		struct rte_crypto_mod_op_param modex;
 		struct rte_crypto_mod_op_param modinv;
 		struct rte_crypto_dh_op_param dh;
+		struct rte_crypto_ecdh_op_param ecdh;
 		struct rte_crypto_dsa_op_param dsa;
 		struct rte_crypto_ecdsa_op_param ecdsa;
 		struct rte_crypto_ecpm_op_param ecpm;