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306b8e7e19
By recognising the nist group names directly we can avoid having to call EC_curve_nist2nid in libssl, which is not available in a no-ec build. Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/13916)
204 lines
9.5 KiB
C
204 lines
9.5 KiB
C
/*
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* Copyright 2019-2020 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <assert.h>
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#include <string.h>
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#include <openssl/core_dispatch.h>
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#include <openssl/core_names.h>
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/* For TLS1_VERSION etc */
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#include <openssl/ssl.h>
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#include <openssl/params.h>
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#include "internal/nelem.h"
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#include "internal/tlsgroups.h"
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#include "prov/providercommon.h"
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#include "e_os.h"
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/* If neither ec or dh is available then we have no TLS-GROUP capabilities */
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#if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_DH)
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typedef struct tls_group_constants_st {
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unsigned int group_id; /* Group ID */
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unsigned int secbits; /* Bits of security */
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int mintls; /* Minimum TLS version, -1 unsupported */
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int maxtls; /* Maximum TLS version (or 0 for undefined) */
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int mindtls; /* Minimum DTLS version, -1 unsupported */
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int maxdtls; /* Maximum DTLS version (or 0 for undefined) */
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} TLS_GROUP_CONSTANTS;
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static const TLS_GROUP_CONSTANTS group_list[35] = {
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{ OSSL_TLS_GROUP_ID_sect163k1, 80, TLS1_VERSION, 0, DTLS1_VERSION, 0 },
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{ OSSL_TLS_GROUP_ID_sect163r1, 80, TLS1_VERSION, 0, DTLS1_VERSION, 0 },
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{ OSSL_TLS_GROUP_ID_sect163r2, 80, TLS1_VERSION, 0, DTLS1_VERSION, 0 },
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{ OSSL_TLS_GROUP_ID_sect193r1, 80, TLS1_VERSION, 0, DTLS1_VERSION, 0 },
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{ OSSL_TLS_GROUP_ID_sect193r2, 80, TLS1_VERSION, 0, DTLS1_VERSION, 0 },
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{ OSSL_TLS_GROUP_ID_sect233k1, 112, TLS1_VERSION, 0, DTLS1_VERSION, 0 },
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{ OSSL_TLS_GROUP_ID_sect233r1, 112, TLS1_VERSION, 0, DTLS1_VERSION, 0 },
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{ OSSL_TLS_GROUP_ID_sect239k1, 112, TLS1_VERSION, 0, DTLS1_VERSION, 0 },
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{ OSSL_TLS_GROUP_ID_sect283k1, 128, TLS1_VERSION, 0, DTLS1_VERSION, 0 },
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{ OSSL_TLS_GROUP_ID_sect283r1, 128, TLS1_VERSION, 0, DTLS1_VERSION, 0 },
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{ OSSL_TLS_GROUP_ID_sect409k1, 192, TLS1_VERSION, 0, DTLS1_VERSION, 0 },
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{ OSSL_TLS_GROUP_ID_sect409r1, 192, TLS1_VERSION, 0, DTLS1_VERSION, 0 },
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{ OSSL_TLS_GROUP_ID_sect571k1, 256, TLS1_VERSION, 0, DTLS1_VERSION, 0 },
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{ OSSL_TLS_GROUP_ID_sect571r1, 256, TLS1_VERSION, 0, DTLS1_VERSION, 0 },
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{ OSSL_TLS_GROUP_ID_secp160k1, 80, TLS1_VERSION, 0, DTLS1_VERSION, 0 },
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{ OSSL_TLS_GROUP_ID_secp160r1, 80, TLS1_VERSION, 0, DTLS1_VERSION, 0 },
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{ OSSL_TLS_GROUP_ID_secp160r2, 80, TLS1_VERSION, 0, DTLS1_VERSION, 0 },
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{ OSSL_TLS_GROUP_ID_secp192k1, 80, TLS1_VERSION, 0, DTLS1_VERSION, 0 },
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{ OSSL_TLS_GROUP_ID_secp192r1, 80, TLS1_VERSION, 0, DTLS1_VERSION, 0 },
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{ OSSL_TLS_GROUP_ID_secp224k1, 112, TLS1_VERSION, 0, DTLS1_VERSION, 0 },
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{ OSSL_TLS_GROUP_ID_secp224r1, 112, TLS1_VERSION, 0, DTLS1_VERSION, 0 },
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{ OSSL_TLS_GROUP_ID_secp256k1, 128, TLS1_VERSION, 0, DTLS1_VERSION, 0 },
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{ OSSL_TLS_GROUP_ID_secp256r1, 128, TLS1_VERSION, 0, DTLS1_VERSION, 0 },
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{ OSSL_TLS_GROUP_ID_secp384r1, 192, TLS1_VERSION, 0, DTLS1_VERSION, 0 },
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{ OSSL_TLS_GROUP_ID_secp521r1, 256, TLS1_VERSION, 0, DTLS1_VERSION, 0 },
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{ OSSL_TLS_GROUP_ID_brainpoolP256r1, 128, TLS1_VERSION, TLS1_2_VERSION,
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DTLS1_VERSION, DTLS1_2_VERSION },
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{ OSSL_TLS_GROUP_ID_brainpoolP384r1, 192, TLS1_VERSION, TLS1_2_VERSION,
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DTLS1_VERSION, DTLS1_2_VERSION },
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{ OSSL_TLS_GROUP_ID_brainpoolP512r1, 256, TLS1_VERSION, TLS1_2_VERSION,
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DTLS1_VERSION, DTLS1_2_VERSION },
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{ OSSL_TLS_GROUP_ID_x25519, 128, TLS1_VERSION, 0, DTLS1_VERSION, 0 },
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{ OSSL_TLS_GROUP_ID_x448, 224, TLS1_VERSION, 0, DTLS1_VERSION, 0 },
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/* Security bit values as given by BN_security_bits() */
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{ OSSL_TLS_GROUP_ID_ffdhe2048, 112, TLS1_3_VERSION, 0, -1, -1 },
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{ OSSL_TLS_GROUP_ID_ffdhe3072, 128, TLS1_3_VERSION, 0, -1, -1 },
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{ OSSL_TLS_GROUP_ID_ffdhe4096, 128, TLS1_3_VERSION, 0, -1, -1 },
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{ OSSL_TLS_GROUP_ID_ffdhe6144, 128, TLS1_3_VERSION, 0, -1, -1 },
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{ OSSL_TLS_GROUP_ID_ffdhe8192, 192, TLS1_3_VERSION, 0, -1, -1 },
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};
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#define TLS_GROUP_ENTRY(tlsname, realname, algorithm, idx) \
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{ \
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OSSL_PARAM_utf8_string(OSSL_CAPABILITY_TLS_GROUP_NAME, \
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tlsname, \
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sizeof(tlsname)), \
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OSSL_PARAM_utf8_string(OSSL_CAPABILITY_TLS_GROUP_NAME_INTERNAL, \
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realname, \
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sizeof(realname)), \
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OSSL_PARAM_utf8_string(OSSL_CAPABILITY_TLS_GROUP_ALG, \
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algorithm, \
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sizeof(algorithm)), \
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OSSL_PARAM_uint(OSSL_CAPABILITY_TLS_GROUP_ID, \
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(unsigned int *)&group_list[idx].group_id), \
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OSSL_PARAM_uint(OSSL_CAPABILITY_TLS_GROUP_SECURITY_BITS, \
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(unsigned int *)&group_list[idx].secbits), \
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OSSL_PARAM_int(OSSL_CAPABILITY_TLS_GROUP_MIN_TLS, \
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(unsigned int *)&group_list[idx].mintls), \
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OSSL_PARAM_int(OSSL_CAPABILITY_TLS_GROUP_MAX_TLS, \
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(unsigned int *)&group_list[idx].maxtls), \
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OSSL_PARAM_int(OSSL_CAPABILITY_TLS_GROUP_MIN_DTLS, \
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(unsigned int *)&group_list[idx].mindtls), \
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OSSL_PARAM_int(OSSL_CAPABILITY_TLS_GROUP_MAX_DTLS, \
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(unsigned int *)&group_list[idx].maxdtls), \
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OSSL_PARAM_END \
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}
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static const OSSL_PARAM param_group_list[][10] = {
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# ifndef OPENSSL_NO_EC
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# ifndef OPENSSL_NO_EC2M
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TLS_GROUP_ENTRY("sect163k1", "sect163k1", "EC", 0),
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TLS_GROUP_ENTRY("K-163", "sect163k1", "EC", 0), /* Alias of above */
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# endif
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# ifndef FIPS_MODULE
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TLS_GROUP_ENTRY("sect163r1", "sect163r1", "EC", 1),
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# endif
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# ifndef OPENSSL_NO_EC2M
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TLS_GROUP_ENTRY("sect163r2", "sect163r2", "EC", 2),
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TLS_GROUP_ENTRY("B-163", "sect163r2", "EC", 2), /* Alias of above */
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# endif
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# ifndef FIPS_MODULE
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TLS_GROUP_ENTRY("sect193r1", "sect193r1", "EC", 3),
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TLS_GROUP_ENTRY("sect193r2", "sect193r2", "EC", 4),
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# endif
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# ifndef OPENSSL_NO_EC2M
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TLS_GROUP_ENTRY("sect233k1", "sect233k1", "EC", 5),
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TLS_GROUP_ENTRY("K-233", "sect233k1", "EC", 5), /* Alias of above */
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TLS_GROUP_ENTRY("sect233r1", "sect233r1", "EC", 6),
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TLS_GROUP_ENTRY("B-233", "sect233r1", "EC", 6), /* Alias of above */
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# endif
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# ifndef FIPS_MODULE
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TLS_GROUP_ENTRY("sect239k1", "sect239k1", "EC", 7),
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# endif
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# ifndef OPENSSL_NO_EC2M
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TLS_GROUP_ENTRY("sect283k1", "sect283k1", "EC", 8),
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TLS_GROUP_ENTRY("K-283", "sect283k1", "EC", 8), /* Alias of above */
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TLS_GROUP_ENTRY("sect283r1", "sect283r1", "EC", 9),
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TLS_GROUP_ENTRY("B-283", "sect283r1", "EC", 9), /* Alias of above */
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TLS_GROUP_ENTRY("sect409k1", "sect409k1", "EC", 10),
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TLS_GROUP_ENTRY("K-409", "sect409k1", "EC", 10), /* Alias of above */
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TLS_GROUP_ENTRY("sect409r1", "sect409r1", "EC", 11),
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TLS_GROUP_ENTRY("B-409", "sect409r1", "EC", 11), /* Alias of above */
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TLS_GROUP_ENTRY("sect571k1", "sect571k1", "EC", 12),
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TLS_GROUP_ENTRY("K-571", "sect571k1", "EC", 12), /* Alias of above */
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TLS_GROUP_ENTRY("sect571r1", "sect571r1", "EC", 13),
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TLS_GROUP_ENTRY("B-571", "sect571r1", "EC", 13), /* Alias of above */
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# endif
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# ifndef FIPS_MODULE
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TLS_GROUP_ENTRY("secp160k1", "secp160k1", "EC", 14),
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TLS_GROUP_ENTRY("secp160r1", "secp160r1", "EC", 15),
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TLS_GROUP_ENTRY("secp160r2", "secp160r2", "EC", 16),
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TLS_GROUP_ENTRY("secp192k1", "secp192k1", "EC", 17),
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# endif
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TLS_GROUP_ENTRY("secp192r1", "prime192v1", "EC", 18),
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TLS_GROUP_ENTRY("P-192", "prime192v1", "EC", 18), /* Alias of above */
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# ifndef FIPS_MODULE
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TLS_GROUP_ENTRY("secp224k1", "secp224k1", "EC", 19),
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# endif
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TLS_GROUP_ENTRY("secp224r1", "secp224r1", "EC", 20),
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TLS_GROUP_ENTRY("P-224", "secp224r1", "EC", 20), /* Alias of above */
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# ifndef FIPS_MODULE
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TLS_GROUP_ENTRY("secp256k1", "secp256k1", "EC", 21),
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# endif
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TLS_GROUP_ENTRY("secp256r1", "prime256v1", "EC", 22),
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TLS_GROUP_ENTRY("P-256", "prime256v1", "EC", 22), /* Alias of above */
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TLS_GROUP_ENTRY("secp384r1", "secp384r1", "EC", 23),
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TLS_GROUP_ENTRY("P-384", "secp384r1", "EC", 23), /* Alias of above */
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TLS_GROUP_ENTRY("secp521r1", "secp521r1", "EC", 24),
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TLS_GROUP_ENTRY("P-521", "secp521r1", "EC", 24), /* Alias of above */
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# ifndef FIPS_MODULE
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TLS_GROUP_ENTRY("brainpoolP256r1", "brainpoolP256r1", "EC", 25),
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TLS_GROUP_ENTRY("brainpoolP384r1", "brainpoolP384r1", "EC", 26),
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TLS_GROUP_ENTRY("brainpoolP512r1", "brainpoolP512r1", "EC", 27),
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# endif
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TLS_GROUP_ENTRY("x25519", "X25519", "X25519", 28),
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TLS_GROUP_ENTRY("x448", "X448", "X448", 29),
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# endif /* OPENSSL_NO_EC */
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# ifndef OPENSSL_NO_DH
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/* Security bit values for FFDHE groups are as per RFC 7919 */
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TLS_GROUP_ENTRY("ffdhe2048", "ffdhe2048", "DH", 30),
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TLS_GROUP_ENTRY("ffdhe3072", "ffdhe3072", "DH", 31),
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TLS_GROUP_ENTRY("ffdhe4096", "ffdhe4096", "DH", 32),
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TLS_GROUP_ENTRY("ffdhe6144", "ffdhe6144", "DH", 33),
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TLS_GROUP_ENTRY("ffdhe8192", "ffdhe8192", "DH", 34),
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# endif
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};
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#endif /* !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_DH) */
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static int tls_group_capability(OSSL_CALLBACK *cb, void *arg)
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{
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#if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_DH)
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size_t i;
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for (i = 0; i < OSSL_NELEM(param_group_list); i++)
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if (!cb(param_group_list[i], arg))
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return 0;
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#endif
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return 1;
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}
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int provider_get_capabilities(void *provctx, const char *capability,
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OSSL_CALLBACK *cb, void *arg)
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{
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if (strcasecmp(capability, "TLS-GROUP") == 0)
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return tls_group_capability(cb, arg);
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/* We don't support this capability */
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return 0;
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}
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