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Deprecate EVP_PKEY_cmp() and EVP_PKEY_cmp_parameters().

Browse Source 
The replacement functions EVP_PKEY_eq() and EVP_PKEY_parameters_eq()
already exist.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: David von Oheimb <david.von.oheimb@siemens.com>
(Merged from https://github.com/openssl/openssl/pull/14997)
master
Shane Lontis 2 years ago
parent 990aa405db
commit c85c5e1a53
8 changed files with 36 additions and 24 deletions
Show Stats Download Patch File Download Diff File

13
CHANGES.md
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@ -567,14 +567,13 @@ OpenSSL 3.0
*Richard Levitte*
* Renamed `EVP_PKEY_cmp()` to `EVP_PKEY_eq()` and
`EVP_PKEY_cmp_parameters()` to `EVP_PKEY_parameters_eq()`.
While the old function names have been retained for backward compatibility
they should not be used in new developments
because their return values are confusing: Unlike other `_cmp()` functions
they do not return 0 in case their arguments are equal.
* Deprecated `EVP_PKEY_cmp()` and `EVP_PKEY_cmp_parameters()` since their
return values were confusing: Unlike other `_cmp()` functions
they do not return 0 when their arguments are equal.
The new replacement functions `EVP_PKEY_eq()` and `EVP_PKEY_parameters_eq()`
should be used.
*David von Oheimb*
*David von Oheimb and Shane Lontis*
* Deprecated `EC_METHOD_get_field_type()`. Applications should switch to
`EC_GROUP_get_field_type()`.

4
crypto/evp/p_lib.c
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@ -292,10 +292,12 @@ static int evp_pkey_cmp_any(const EVP_PKEY *a, const EVP_PKEY *b,
return evp_keymgmt_match(keymgmt1, keydata1, keydata2, selection);
}
# ifndef OPENSSL_NO_DEPRECATED_3_0
int EVP_PKEY_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b)
{
return EVP_PKEY_parameters_eq(a, b);
}
#endif
int EVP_PKEY_parameters_eq(const EVP_PKEY *a, const EVP_PKEY *b)
{
@ -315,10 +317,12 @@ int EVP_PKEY_parameters_eq(const EVP_PKEY *a, const EVP_PKEY *b)
return -2;
}
# ifndef OPENSSL_NO_DEPRECATED_3_0
int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b)
{
return EVP_PKEY_eq(a, b);
}
#endif
int EVP_PKEY_eq(const EVP_PKEY *a, const EVP_PKEY *b)
{

25
doc/man3/EVP_PKEY_copy_parameters.pod
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@ -14,8 +14,13 @@ EVP_PKEY_cmp - public key parameter and comparison functions
int EVP_PKEY_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from);
int EVP_PKEY_parameters_eq(const EVP_PKEY *a, const EVP_PKEY *b);
int EVP_PKEY_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b);
int EVP_PKEY_eq(const EVP_PKEY *a, const EVP_PKEY *b);
Deprecated since OpenSSL 3.0, can be hidden entirely by defining
B<OPENSSL_API_COMPAT> with a suitable version value, see
L<openssl_user_macros(7)>:
int EVP_PKEY_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b);
int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b);
=head1 DESCRIPTION
@ -46,10 +51,9 @@ Since OpenSSL private keys contain public key components too the function
EVP_PKEY_eq() can also be used to determine if a private key matches
a public key.
EVP_PKEY_cmp() and EVP_PKEY_cmp_parameters() differ in their return values
compared to other _cmp() functions. They are aliases for EVP_PKEY_eq() and
EVP_PKEY_parameters_eq() functions provided for backwards compatibility
with existing applications.
The deprecated functions EVP_PKEY_cmp() and EVP_PKEY_cmp_parameters() differ in
their return values compared to other _cmp() functions. They are aliases for
EVP_PKEY_eq() and EVP_PKEY_parameters_eq().
=head1 RETURN VALUES
@ -72,14 +76,15 @@ L<EVP_PKEY_keygen(3)>
=head1 HISTORY
EVP_PKEY_eq() and EVP_PKEY_parameters_eq() were added in OpenSSL 3.0 to
avoid confusion on the return values of EVP_PKEY_cmp() and
EVP_PKEY_cmp_parameters() which unlike other _cmp()
functions do not return 0 in case their arguments are equal.
The EVP_PKEY_cmp() and EVP_PKEY_cmp_parameters() functions were deprecated in
OpenSSL 3.0.
The EVP_PKEY_eq() and EVP_PKEY_parameters_eq() were added in OpenSSL 3.0 to
replace EVP_PKEY_cmp() and EVP_PKEY_cmp_parameters().
=head1 COPYRIGHT
Copyright 2006-2020 The OpenSSL Project Authors. All Rights Reserved.
Copyright 2006-2021 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

2
doc/man7/evp.pod
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@ -31,7 +31,7 @@ L<EVP_PKEY_new(3)>. EVP_PKEYs can be associated
with a private key of a particular algorithm by using the functions
described on the L<EVP_PKEY_fromdata(3)> page, or
new keys can be generated using L<EVP_PKEY_keygen(3)>.
EVP_PKEYs can be compared using L<EVP_PKEY_cmp(3)>, or printed using
EVP_PKEYs can be compared using L<EVP_PKEY_eq(3)>, or printed using
L<EVP_PKEY_print_private(3)>. L<EVP_PKEY_todata(3)> can be used to convert a
key back into an L<OSSL_PARAM(3)> array.

2
doc/man7/provider-keymgmt.pod
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@ -175,7 +175,7 @@ Indicating that all key object parameters should be considered,
regardless of their more granular classification.
=for comment This should used by EVP functions such as
EVP_PKEY_copy_parameters() and EVP_PKEY_cmp_parameters()
EVP_PKEY_copy_parameters() and EVP_PKEY_parameters_eq()
This is a combination of B<OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS> and
B<OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS>.

8
include/openssl/evp.h
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@ -1356,11 +1356,15 @@ EVP_PKEY *d2i_KeyParams_bio(int type, EVP_PKEY **a, BIO *in);
int EVP_PKEY_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from);
int EVP_PKEY_missing_parameters(const EVP_PKEY *pkey);
int EVP_PKEY_save_parameters(EVP_PKEY *pkey, int mode);
int EVP_PKEY_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b);
int EVP_PKEY_parameters_eq(const EVP_PKEY *a, const EVP_PKEY *b);
int EVP_PKEY_eq(const EVP_PKEY *a, const EVP_PKEY *b);
# ifndef OPENSSL_NO_DEPRECATED_3_0
OSSL_DEPRECATEDIN_3_0
int EVP_PKEY_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b);
OSSL_DEPRECATEDIN_3_0
int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b);
int EVP_PKEY_eq(const EVP_PKEY *a, const EVP_PKEY *b);
# endif
int EVP_PKEY_print_public(BIO *out, const EVP_PKEY *pkey,
int indent, ASN1_PCTX *pctx);

2
test/evp_extra_test.c
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@ -2758,7 +2758,7 @@ static int test_ecpub(int idx)
if (!TEST_ptr(d2i_PublicKey(EVP_PKEY_EC, &pkey2, &q, savelen)))
goto done;
/* The keys should match. */
if (!TEST_int_eq(EVP_PKEY_cmp(pkey, pkey2), 1))
if (!TEST_int_eq(EVP_PKEY_eq(pkey, pkey2), 1))
goto done;
# endif

4
util/libcrypto.num
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@ -190,7 +190,7 @@ EVP_DigestInit 193 3_0_0 EXIST::FUNCTION:
EVP_PKEY_meth_find 194 3_0_0 EXIST::FUNCTION:DEPRECATEDIN_3_0
X509_VERIFY_PARAM_get_count 195 3_0_0 EXIST::FUNCTION:
ASN1_BIT_STRING_get_bit 196 3_0_0 EXIST::FUNCTION:
EVP_PKEY_cmp 197 3_0_0 EXIST::FUNCTION:
EVP_PKEY_cmp 197 3_0_0 EXIST::FUNCTION:DEPRECATEDIN_3_0
d2i_X509_ALGORS 198 3_0_0 EXIST::FUNCTION:
EVP_PKEY2PKCS8 199 3_0_0 EXIST::FUNCTION:
BN_nist_mod_256 200 3_0_0 EXIST::FUNCTION:
@ -3460,7 +3460,7 @@ ERR_print_errors_cb 3531 3_0_0 EXIST::FUNCTION:
ENGINE_set_default_string 3532 3_0_0 EXIST::FUNCTION:DEPRECATEDIN_3_0,ENGINE
BIO_number_read 3533 3_0_0 EXIST::FUNCTION:
CRYPTO_zalloc 3534 3_0_0 EXIST::FUNCTION:
EVP_PKEY_cmp_parameters 3535 3_0_0 EXIST::FUNCTION:
EVP_PKEY_cmp_parameters 3535 3_0_0 EXIST::FUNCTION:DEPRECATEDIN_3_0
EVP_PKEY_CTX_new_id 3537 3_0_0 EXIST::FUNCTION:
TLS_FEATURE_free 3538 3_0_0 EXIST::FUNCTION:
d2i_BASIC_CONSTRAINTS 3539 3_0_0 EXIST::FUNCTION:

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