luckfox-pico-sdk/media/security/librkcrypto/test/include/c_mode/kdf.h
luckfox-eng29 8f34c2760d project:build.sh: Added fastboot support; custom modifications to U-Boot and kernel implemented using patches.
project:cfg:BoardConfig_IPC: Added fastboot BoardConfig file and firmware post-scripts, distinguishing between
the BoardConfigs for Luckfox Pico Pro and Luckfox Pico Max. project:app: Added fastboot_client and rk_smart_door
for quick boot applications; updated rkipc app to adapt to the latest media library. media:samples: Added more
usage examples. media:rockit: Fixed bugs; removed support for retrieving data frames from VPSS. media:isp:
Updated rkaiq library and related tools to support connection to RKISP_Tuner. sysdrv:Makefile: Added support for
compiling drv_ko on Luckfox Pico Ultra W using Ubuntu; added support for custom root filesystem.
sysdrv:tools:board: Updated Buildroot optional mirror sources, updated some software versions, and stored device
tree files and configuration files that undergo multiple modifications for U-Boot and kernel separately.
sysdrv:source:mcu: Used RISC-V MCU SDK with RT-Thread system, mainly for initializing camera AE during quick
boot. sysdrv:source:uboot: Added support for fastboot; added high baud rate DDR bin for serial firmware upgrades.
sysdrv:source:kernel: Upgraded to version 5.10.160; increased NPU frequency for RV1106G3; added support for
fastboot.

Signed-off-by: luckfox-eng29 <eng29@luckfox.com>
2024-10-14 09:47:04 +08:00

68 lines
1.3 KiB
C

#include <memory.h>
#include <openssl/evp.h>
// ----- KDF FUNCTIONS START -----
//typedef void *(*KDF)(const void *in, size_t inlen, void *out, size_t *outlen);
int x9_63_kdf(const EVP_MD *md, const unsigned char *share, size_t sharelen, size_t keylen, unsigned char *outkey)
{
int ret = 0;
EVP_MD_CTX ctx;
unsigned char counter[4] = {0, 0, 0, 1};
unsigned char dgst[EVP_MAX_MD_SIZE];
unsigned int dgstlen;
int rlen = (int)keylen;
unsigned char * pp;
pp = outkey;
if (keylen > (size_t)EVP_MD_size(md)*255)
{
fprintf(stderr, "%s(%d):", __FILE__, __LINE__);
goto end;
}
while (rlen > 0)
{
EVP_MD_CTX_init(&ctx);
if (!EVP_DigestInit(&ctx, md))
{
fprintf(stderr, "%s(%d):", __FILE__, __LINE__);
goto end;
}
if (!EVP_DigestUpdate(&ctx, share, sharelen))
{
fprintf(stderr, "%s(%d):", __FILE__, __LINE__);
goto end;
}
if (!EVP_DigestUpdate(&ctx, counter, 4))
{
fprintf(stderr, "%s(%d):", __FILE__, __LINE__);
goto end;
}
if (!EVP_DigestFinal(&ctx, dgst, &dgstlen))
{
fprintf(stderr, "%s(%d):", __FILE__, __LINE__);
goto end;
}
EVP_MD_CTX_cleanup(&ctx);
memcpy(pp, dgst, keylen>=dgstlen ? dgstlen:keylen);
rlen -= dgstlen;
pp += dgstlen;
counter[3]++;
}
ret = 1;
end:
return ret;
}
// ----- KDF FUNCTIONS END -----