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Diffstat (limited to 'include/internal/hpke_util.h')
| -rw-r--r-- | include/internal/hpke_util.h | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/include/internal/hpke_util.h b/include/internal/hpke_util.h deleted file mode 100644 index e1da5e0596fb..000000000000 --- a/include/internal/hpke_util.h +++ /dev/null @@ -1,100 +0,0 @@ -/* - * Copyright 2022 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 - * in the file LICENSE in the source distribution or at - * https://www.openssl.org/source/license.html - */ - -#ifndef OSSL_INTERNAL_HPKE_UTIL_H -# define OSSL_INTERNAL_HPKE_UTIL_H -# pragma once - -/* Constants from RFC 9180 Section 7.1 and 7.3 */ -# define OSSL_HPKE_MAX_SECRET 64 -# define OSSL_HPKE_MAX_PUBLIC 133 -# define OSSL_HPKE_MAX_PRIVATE 66 -# define OSSL_HPKE_MAX_KDF_INPUTLEN 64 - -/* - * max length of a base-nonce (the Nn field from OSSL_HPKE_AEAD_INFO), this - * is used for a local stack array size - */ -# define OSSL_HPKE_MAX_NONCELEN 12 - -/* - * @brief info about a KEM - * Used to store constants from Section 7.1 "Table 2 KEM IDs" - * and the bitmask for EC curves described in Section 7.1.3 DeriveKeyPair - */ -typedef struct { - uint16_t kem_id; /* code point for key encipherment method */ - const char *keytype; /* string form of algtype "EC"/"X25519"/"X448" */ - const char *groupname; /* string form of EC group for NIST curves */ - const char *mdname; /* hash alg name for the HKDF */ - size_t Nsecret; /* size of secrets */ - size_t Nenc; /* length of encapsulated key */ - size_t Npk; /* length of public key */ - size_t Nsk; /* length of raw private key */ - uint8_t bitmask; -} OSSL_HPKE_KEM_INFO; - -/* - * @brief info about a KDF - */ -typedef struct { - uint16_t kdf_id; /* code point for KDF */ - const char *mdname; /* hash alg name for the HKDF */ - size_t Nh; /* length of hash/extract output */ -} OSSL_HPKE_KDF_INFO; - -/* - * @brief info about an AEAD - */ -typedef struct { - uint16_t aead_id; /* code point for aead alg */ - const char *name; /* alg name */ - size_t taglen; /* aead tag len */ - size_t Nk; /* size of a key for this aead */ - size_t Nn; /* length of a nonce for this aead */ -} OSSL_HPKE_AEAD_INFO; - -const OSSL_HPKE_KEM_INFO *ossl_HPKE_KEM_INFO_find_curve(const char *curve); -const OSSL_HPKE_KEM_INFO *ossl_HPKE_KEM_INFO_find_id(uint16_t kemid); -const OSSL_HPKE_KEM_INFO *ossl_HPKE_KEM_INFO_find_random(OSSL_LIB_CTX *ctx); -const OSSL_HPKE_KDF_INFO *ossl_HPKE_KDF_INFO_find_id(uint16_t kdfid); -const OSSL_HPKE_KDF_INFO *ossl_HPKE_KDF_INFO_find_random(OSSL_LIB_CTX *ctx); -const OSSL_HPKE_AEAD_INFO *ossl_HPKE_AEAD_INFO_find_id(uint16_t aeadid); -const OSSL_HPKE_AEAD_INFO *ossl_HPKE_AEAD_INFO_find_random(OSSL_LIB_CTX *ctx); - -int ossl_hpke_kdf_extract(EVP_KDF_CTX *kctx, - unsigned char *prk, size_t prklen, - const unsigned char *salt, size_t saltlen, - const unsigned char *ikm, size_t ikmlen); - -int ossl_hpke_kdf_expand(EVP_KDF_CTX *kctx, - unsigned char *okm, size_t okmlen, - const unsigned char *prk, size_t prklen, - const unsigned char *info, size_t infolen); - -int ossl_hpke_labeled_extract(EVP_KDF_CTX *kctx, - unsigned char *prk, size_t prklen, - const unsigned char *salt, size_t saltlen, - const char *protocol_label, - const unsigned char *suiteid, size_t suiteidlen, - const char *label, - const unsigned char *ikm, size_t ikmlen); -int ossl_hpke_labeled_expand(EVP_KDF_CTX *kctx, - unsigned char *okm, size_t okmlen, - const unsigned char *prk, size_t prklen, - const char *protocol_label, - const unsigned char *suiteid, size_t suiteidlen, - const char *label, - const unsigned char *info, size_t infolen); - -EVP_KDF_CTX *ossl_kdf_ctx_create(const char *kdfname, const char *mdname, - OSSL_LIB_CTX *libctx, const char *propq); - -int ossl_hpke_str2suite(const char *suitestr, OSSL_HPKE_SUITE *suite); -#endif |