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refactor: remove tr_dh code (#3443)

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Refactor the MSE handshake Diffie-Hellman key code.
This commit is contained in:
Charles Kerr
2022-07-14 19:54:10 -05:00
committed by GitHub
parent c3db52e310
commit 2bcab6be7e
28 changed files with 517 additions and 1196 deletions
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libtransmission/crypto-utils.h
-50
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@@ -6,7 +6,6 @@
#ifndef TR_CRYPTO_UTILS_H
#define TR_CRYPTO_UTILS_H
#include <cstdint> // uint8_t
#include <cstddef> // size_t
#include <optional>
#include <string>
@@ -23,10 +22,6 @@
using tr_sha1_ctx_t = void*;
/** @brief Opaque SHA256 context type. */
using tr_sha256_ctx_t = void*;
/** @brief Opaque DH context type. */
using tr_dh_ctx_t = void*;
/** @brief Opaque DH secret key type. */
using tr_dh_secret_t = void*;
/** @brief Opaque SSL context type. */
using tr_ssl_ctx_t = void*;
/** @brief Opaque X509 certificate store type. */
@@ -110,51 +105,6 @@ std::optional<tr_sha256_digest_t> tr_sha256(T... args)
return std::nullopt;
}
/**
* @brief Allocate and initialize new Diffie-Hellman (DH) key exchange context.
*/
tr_dh_ctx_t tr_dh_new(
uint8_t const* prime_num,
size_t prime_num_length,
uint8_t const* generator_num,
size_t generator_num_length);
/**
* @brief Free DH key exchange context.
*/
void tr_dh_free(tr_dh_ctx_t handle);
/**
* @brief Generate private and public DH keys, export public key.
*/
bool tr_dh_make_key(tr_dh_ctx_t handle, size_t private_key_length, uint8_t* public_key, size_t* public_key_length);
/**
* @brief Perform DH key exchange, generate secret key.
*/
tr_dh_secret_t tr_dh_agree(tr_dh_ctx_t handle, uint8_t const* other_public_key, size_t other_public_key_length);
/**
* @brief Calculate SHA1 hash of DH secret key, prepending and/or appending
* given data to the key during calculation.
*/
std::optional<tr_sha1_digest_t> tr_dh_secret_derive(
tr_dh_secret_t handle,
void const* prepend_data,
size_t prepend_data_size,
void const* append_data,
size_t append_data_size);
/**
* @brief Free DH secret key returned by @ref tr_dh_agree.
*/
void tr_dh_secret_free(tr_dh_secret_t handle);
/**
* @brief Align DH key (big-endian number) to required length (internal, do not use).
*/
void tr_dh_align_key(uint8_t* key_buffer, size_t key_size, size_t buffer_size);
/**
* @brief Get X509 certificate store from SSL context.
*/