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https://github.com/redstrate/Astra.git
synced 2025-04-25 13:57:45 +00:00
Joshua Goins
5ee036dd09
* This uses the great libcotp library, I stripped it down to fit inside the repository. * This is a security-convenience trade-off, and it's made very clear with the tooltips on the settings page. * It's still secured by your system keychain, and it's up to the users whether that's good enough for them. Eventually down the line I would like to support more esoteric keychains such as Bitwarden or KeePass. * Right now it's only integrated into the auto-login desktop feature, but there will eventually be like an "auto-fill OTP" button in the main window. There's still a lot to clean up with these new features but they work a little at least :-)
50 lines
No EOL
1.2 KiB
C
50 lines
No EOL
1.2 KiB
C
#pragma once
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#include "baseencode.h"
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#define BITS_PER_BYTE 8
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#define BITS_PER_B32_BLOCK 5
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#define BITS_PER_B64_BLOCK 6
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// 64 MB should be more than enough
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#define MAX_ENCODE_INPUT_LEN 64*1024*1024
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// if 64 MB of data is encoded than it should be also possible to decode it. That's why a bigger input is allowed for decoding
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#define MAX_DECODE_BASE32_INPUT_LEN ((MAX_ENCODE_INPUT_LEN * 8 + 4) / 5)
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#define MAX_DECODE_BASE64_INPUT_LEN ((MAX_ENCODE_INPUT_LEN * 8 + 4) / 6)
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static int
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strip_char(char *str, char strip)
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{
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int found = 0;
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char *p, *q;
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for (q = p = str; *p; p++) {
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if (*p != strip) {
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*q++ = *p;
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} else {
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found++;
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}
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}
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*q = '\0';
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return found;
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}
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static void
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check_input(const unsigned char *user_data, size_t data_len, int max_len, baseencode_error_t *err)
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{
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if (user_data == NULL || (data_len == 0 && user_data[0] != '\0')) {
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*err = INVALID_INPUT;
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return;
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} else if (user_data[0] == '\0') {
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*err = EMPTY_STRING;
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return;
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}
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if (data_len > max_len) {
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*err = INPUT_TOO_BIG;
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return;
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}
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*err = SUCCESS;
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} |