mirror of
https://github.com/wolfSSL/wolfssl.git
synced 2026-07-06 03:30:50 +02:00
Josh Holtrop
137 lines
3.6 KiB
Rust
137 lines
3.6 KiB
Rust
/*
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* Copyright (C) 2006-2026 wolfSSL Inc.
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*
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* This file is part of wolfSSL.
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*
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* wolfSSL is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* wolfSSL is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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*/
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#![no_std]
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#[cfg(feature = "alloc")]
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extern crate alloc;
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/* bindgen-generated bindings to the C library */
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pub mod sys;
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/// Zeroize the raw bytes of a value. For use in `zeroize()` methods on C FFI
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/// structs where `#[derive(Zeroize)]` cannot be used.
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///
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/// # Safety
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///
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/// `val` must be a valid, initialized value whose entire `size_of_val` byte
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/// representation is safe to overwrite with zeroes.
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pub(crate) unsafe fn zeroize_raw<T>(val: &mut T) {
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use zeroize::Zeroize;
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unsafe {
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core::slice::from_raw_parts_mut(
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val as *mut T as *mut u8,
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core::mem::size_of_val(val),
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).zeroize();
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}
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}
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pub mod aes;
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pub mod blake2;
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#[cfg(all(any(blake2b, blake2s), feature = "digest"))]
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pub mod blake2_digest;
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#[cfg(all(any(blake2b, blake2s), feature = "mac"))]
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pub mod blake2_mac;
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pub mod chacha20_poly1305;
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pub mod cmac;
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#[cfg(all(cmac, feature = "mac"))]
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pub mod cmac_mac;
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pub mod curve25519;
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pub mod dh;
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pub mod dilithium;
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pub mod ecc;
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#[cfg(feature = "signature")]
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pub mod ecdsa;
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pub mod ed25519;
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pub mod ed448;
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pub mod fips;
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pub mod hkdf;
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pub mod hmac;
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#[cfg(all(hmac, feature = "mac"))]
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pub mod hmac_mac;
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pub mod kdf;
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pub mod lms;
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pub mod mlkem;
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#[cfg(all(feature = "kem", mlkem))]
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pub mod mlkem_kem;
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pub mod prf;
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pub mod random;
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pub mod rsa;
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#[cfg(rsa_oaep)]
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pub mod rsa_oaep;
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#[cfg(feature = "signature")]
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pub mod rsa_pkcs1v15;
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pub mod sha;
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#[cfg(all(feature = "password-hash", hmac, kdf_pbkdf2))]
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pub mod pbkdf2_password_hash;
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#[cfg(all(feature = "password-hash", kdf_scrypt))]
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pub mod scrypt_password_hash;
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#[cfg(feature = "digest")]
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pub mod sha_digest;
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/// Convert a buffer length to `u32`, returning `BUFFER_E` if it overflows.
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pub(crate) fn buffer_len_to_u32(len: usize) -> Result<u32, i32> {
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u32::try_from(len).map_err(|_| sys::wolfCrypt_ErrorCodes_BUFFER_E)
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}
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/// Convert a buffer length to `i32`, returning `BUFFER_E` if it overflows.
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pub(crate) fn buffer_len_to_i32(len: usize) -> Result<i32, i32> {
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i32::try_from(len).map_err(|_| sys::wolfCrypt_ErrorCodes_BUFFER_E)
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}
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/// Initialize resources used by wolfCrypt.
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///
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/// # Returns
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///
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/// Returns either Ok(()) on success or Err(e) containing the wolfSSL
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/// library error code value.
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///
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/// # Example
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///
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/// ```rust
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/// use wolfssl_wolfcrypt::*;
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/// wolfcrypt_init().expect("Error with wolfcrypt_init()");
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/// // ... use the library ...
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/// wolfcrypt_cleanup().expect("wolfCrypt_Cleanup failed");
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/// ```
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pub fn wolfcrypt_init() -> Result<(), i32> {
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let rc = unsafe { sys::wolfCrypt_Init() };
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if rc != 0 {
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return Err(rc);
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}
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Ok(())
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}
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/// Clean up resources used by wolfCrypt.
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///
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/// # Returns
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///
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/// Returns either Ok(()) on success or Err(e) containing the wolfSSL
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/// library error code value.
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///
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/// See also: [`wolfcrypt_init`]
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pub fn wolfcrypt_cleanup() -> Result<(), i32> {
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let rc = unsafe { sys::wolfCrypt_Cleanup() };
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if rc != 0 {
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return Err(rc);
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}
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Ok(())
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}
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