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Update TOTP

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This commit is contained in:
MX
2023-04-28 14:04:16 +03:00
parent 96375e8244
commit e87256e01f
10 changed files with 60 additions and 28 deletions
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7
applications/external/totp/services/hmac/sha256.c vendored
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@@ -25,6 +25,7 @@
#include <stdint.h>
#include <string.h>
#include "sha_pad_buffer.h"
#ifdef WORDS_BIGENDIAN
#define SWAP(n) (n)
@@ -33,10 +34,6 @@
#define SWAP(n) swap_uint32(n)
#endif
/* This array contains the bytes used to pad the buffer to the next
64-byte boundary. */
static const unsigned char fillbuf[64] = {0x80, 0 /* , 0, 0, ... */};
/*
Takes a pointer to a 256 bit block of data (eight 32 bit ints) and
initializes it to the start constants of the SHA256 algorithm. This
@@ -91,7 +88,7 @@ static void sha256_conclude_ctx(struct sha256_ctx* ctx) {
set_uint32((char*)&ctx->buffer[size - 2], SWAP((ctx->total[1] << 3) | (ctx->total[0] >> 29)));
set_uint32((char*)&ctx->buffer[size - 1], SWAP(ctx->total[0] << 3));
memcpy(&((char*)ctx->buffer)[bytes], fillbuf, (size - 2) * 4 - bytes);
sha_pad_buffer(&((uint8_t*)ctx->buffer)[bytes], (size - 2) * 4 - bytes);
/* Process last bytes. */
sha256_process_block(ctx->buffer, size * 4, ctx);