mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-07-02 17:28:30 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Make GCM AES faster

Browse source 
13.22% mbedtls_aesni_gcm_mult
    13.03% mbedtls_gcm_update
     9.85% mbedtls_aesni_crypt_ecb

Overhead improvement (perf record)

    10.97% mbedtls_aesni_gcm_mult
    10.59% mbedtls_aesni_crypt_ecb
     2.26% mbedtls_gcm_update
This commit is contained in:
Justine Tunney 2021-07-06 07:07:18 -07:00
parent f8b9bd2b47
commit e51034bab3
10 changed files with 452 additions and 640 deletions
Download patch file Download diff file Expand all files Collapse all files

97
third_party/mbedtls/aesni.h vendored
View file

@ -1,96 +1,17 @@
#ifndef MBEDTLS_AESNI_H
#define MBEDTLS_AESNI_H
#ifndef MBEDTLS_AESNI_H_
#define MBEDTLS_AESNI_H_
#include "third_party/mbedtls/aes.h"
#include "third_party/mbedtls/config.h"
COSMOPOLITAN_C_START_
/* clang-format off */
#define MBEDTLS_AESNI_AES 0x02000000u
#define MBEDTLS_AESNI_CLMUL 0x00000002u
#ifdef __cplusplus
extern "C" {
#endif
int mbedtls_aesni_crypt_ecb( mbedtls_aes_context *, int, const unsigned char[16], unsigned char[16] );
void mbedtls_aesni_gcm_mult( unsigned char[16], const uint64_t[2] );
void mbedtls_aesni_inverse_key( unsigned char *, const unsigned char *, int );
int mbedtls_aesni_setkey_enc( unsigned char *, const unsigned char *, size_t );
/**
* \brief Internal function to detect the AES-NI feature in CPUs.
*
* \note This function is only for internal use by other library
* functions; you must not call it directly.
*
* \param what The feature to detect
* (MBEDTLS_AESNI_AES or MBEDTLS_AESNI_CLMUL)
*
* \return 1 if CPU has support for the feature, 0 otherwise
*/
int mbedtls_aesni_has_support( unsigned int what );
/**
* \brief Internal AES-NI AES-ECB block encryption and decryption
*
* \note This function is only for internal use by other library
* functions; you must not call it directly.
*
* \param ctx AES context
* \param mode MBEDTLS_AES_ENCRYPT or MBEDTLS_AES_DECRYPT
* \param input 16-byte input block
* \param output 16-byte output block
*
* \return 0 on success (cannot fail)
*/
int mbedtls_aesni_crypt_ecb( mbedtls_aes_context *ctx,
int mode,
const unsigned char input[16],
unsigned char output[16] );
/**
* \brief Internal GCM multiplication: c = a * b in GF(2^128)
*
* \note This function is only for internal use by other library
* functions; you must not call it directly.
*
* \param c Result
* \param a First operand
* \param b Second operand
*
* \note Both operands and result are bit strings interpreted as
* elements of GF(2^128) as per the GCM spec.
*/
void mbedtls_aesni_gcm_mult( unsigned char c[16],
const unsigned char a[16],
const unsigned char b[16] );
/**
* \brief Internal round key inversion. This function computes
* decryption round keys from the encryption round keys.
*
* \note This function is only for internal use by other library
* functions; you must not call it directly.
*
* \param invkey Round keys for the equivalent inverse cipher
* \param fwdkey Original round keys (for encryption)
* \param nr Number of rounds (that is, number of round keys minus one)
*/
void mbedtls_aesni_inverse_key( unsigned char *invkey,
const unsigned char *fwdkey,
int nr );
/**
* \brief Internal key expansion for encryption
*
* \note This function is only for internal use by other library
* functions; you must not call it directly.
*
* \param rk Destination buffer where the round keys are written
* \param key Encryption key
* \param bits Key size in bits (must be 128, 192 or 256)
*
* \return 0 if successful, or MBEDTLS_ERR_AES_INVALID_KEY_LENGTH
*/
int mbedtls_aesni_setkey_enc( unsigned char *rk,
const unsigned char *key,
size_t bits );
#ifdef __cplusplus
}
#endif
#endif /* MBEDTLS_AESNI_H */
COSMOPOLITAN_C_END_
#endif /* MBEDTLS_AESNI_H_ */