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897 lines
26 KiB
C
897 lines
26 KiB
C
/**
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* Author......: See docs/credits.txt
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* License.....: MIT
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*/
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#include "common.h"
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#include "types.h"
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#include "convert.h"
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/*
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Source:
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http://www.unicode.org/versions/Unicode7.0.0/UnicodeStandard-7.0.pdf
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page 124, 3.9 "Unicode Encoding Forms", "UTF-8"
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Table 3-7. Well-Formed UTF-8 Byte Sequences
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-----------------------------------------------------------------------------
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| Code Points | First Byte | Second Byte | Third Byte | Fourth Byte |
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| U+0000..U+007F | 00..7F | | | |
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| U+0080..U+07FF | C2..DF | 80..BF | | |
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| U+0800..U+0FFF | E0 | A0..BF | 80..BF | |
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| U+1000..U+CFFF | E1..EC | 80..BF | 80..BF | |
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| U+D000..U+D7FF | ED | 80..9F | 80..BF | |
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| U+E000..U+FFFF | EE..EF | 80..BF | 80..BF | |
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| U+10000..U+3FFFF | F0 | 90..BF | 80..BF | 80..BF |
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| U+40000..U+FFFFF | F1..F3 | 80..BF | 80..BF | 80..BF |
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| U+100000..U+10FFFF | F4 | 80..8F | 80..BF | 80..BF |
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-----------------------------------------------------------------------------
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*/
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static bool printable_utf8 (const u8 *buf, const size_t len)
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{
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// there's 9 different code point types for utf8 and ...
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const int cp_types[256] =
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{
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 5, 5,
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6, 7, 7, 7, 8, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
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};
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// ... they can be directly translated into a fixed length sequence of bytes
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const size_t cp_lens[9] = { 1, 2, 3, 3, 3, 3, 4, 4, 4 };
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for (size_t pos = 0; pos < len; pos++)
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{
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const u8 c0 = buf[pos];
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const int cp_type = cp_types[c0];
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if (cp_type == -1) return false;
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// make sure to not read outside the buffer
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const size_t cp_len = cp_lens[cp_type];
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if ((pos + cp_len) > len) return false;
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// multibyte from here
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if (cp_len >= 2)
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{
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pos++;
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const u8 c1 = buf[pos];
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switch (cp_type)
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{
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case 2: if ((c1 < 0xa0) || (c1 > 0xbf)) return false; break;
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case 4: if ((c1 < 0x80) || (c1 > 0x9f)) return false; break;
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case 6: if ((c1 < 0x90) || (c1 > 0xbf)) return false; break;
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case 8: if ((c1 < 0x80) || (c1 > 0x8f)) return false; break;
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default: if ((c1 < 0x80) || (c1 > 0xbf)) return false; break;
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}
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for (size_t j = 2; j < cp_len; j++)
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{
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pos++;
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const u8 cx = buf[pos];
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if ((cx < 0x80) || (cx > 0xbf)) return false;
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}
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}
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}
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return true;
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}
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static bool printable_ascii (const u8 *buf, const size_t len)
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{
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for (size_t i = 0; i < len; i++)
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{
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const u8 c = buf[i];
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if (c < 0x20) return false;
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if (c > 0x7e) return false;
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}
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return true;
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}
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static bool matches_separator (const u8 *buf, const size_t len, const char separator)
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{
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for (size_t i = 0; i < len; i++)
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{
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const char c = (char) buf[i];
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if (c == separator) return true;
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}
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return false;
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}
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bool is_hexify (const u8 *buf, const size_t len)
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{
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if (len < 6) return false; // $HEX[] = 6
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// length of the hex string must be a multiple of 2
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// and the length of "$HEX[]" is 6 (also an even length)
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// Therefore the overall length must be an even number:
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if ((len & 1) == 1) return false;
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if (buf[0] != '$') return (false);
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if (buf[1] != 'H') return (false);
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if (buf[2] != 'E') return (false);
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if (buf[3] != 'X') return (false);
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if (buf[4] != '[') return (false);
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if (buf[len - 1] != ']') return (false);
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if (is_valid_hex_string (buf + 5, len - 6) == false) return false;
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return true;
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}
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size_t exec_unhexify (const u8 *in_buf, const size_t in_len, u8 *out_buf, const size_t out_sz)
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{
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size_t i, j;
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for (i = 0, j = 5; j < in_len - 1; i += 1, j += 2)
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{
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const u8 c = hex_to_u8 (&in_buf[j]);
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out_buf[i] = c;
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}
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memset (out_buf + i, 0, out_sz - i);
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return (i);
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}
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bool need_hexify (const u8 *buf, const size_t len, const char separator, bool always_ascii)
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{
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bool rc = false;
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if (always_ascii == true)
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{
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if (printable_ascii (buf, len) == false)
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{
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rc = true;
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}
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}
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else
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{
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if (printable_utf8 (buf, len) == false)
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{
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rc = true;
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}
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}
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if (rc == false)
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{
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if (matches_separator (buf, len, separator) == true)
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{
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rc = true;
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}
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}
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// also test if the password is of the format $HEX[]:
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if (rc == false)
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{
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if (is_hexify (buf, len))
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{
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rc = true;
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}
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}
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return rc;
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}
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void exec_hexify (const u8 *buf, const size_t len, u8 *out)
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{
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const size_t max_len = (len > PW_MAX) ? PW_MAX : len;
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for (int i = (int) max_len - 1, j = i * 2; i >= 0; i -= 1, j -= 2)
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{
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u8_to_hex (buf[i], out + j);
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}
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out[max_len * 2] = 0;
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}
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bool is_valid_base64a_string (const u8 *s, const size_t len)
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{
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for (size_t i = 0; i < len; i++)
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{
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const u8 c = s[i];
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if (is_valid_base64a_char (c) == false) return false;
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}
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return true;
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}
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bool is_valid_base64a_char (const u8 c)
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{
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if ((c >= '0') && (c <= '9')) return true;
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if ((c >= 'A') && (c <= 'Z')) return true;
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if ((c >= 'a') && (c <= 'z')) return true;
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if (c == '+') return true;
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if (c == '/') return true;
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if (c == '=') return true;
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return false;
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}
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bool is_valid_base64b_string (const u8 *s, const size_t len)
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{
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for (size_t i = 0; i < len; i++)
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{
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const u8 c = s[i];
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if (is_valid_base64b_char (c) == false) return false;
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}
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return true;
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}
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bool is_valid_base64b_char (const u8 c)
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{
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if ((c >= '0') && (c <= '9')) return true;
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if ((c >= 'A') && (c <= 'Z')) return true;
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if ((c >= 'a') && (c <= 'z')) return true;
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if (c == '.') return true;
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if (c == '/') return true;
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if (c == '=') return true;
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return false;
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}
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bool is_valid_base64c_string (const u8 *s, const size_t len)
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{
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for (size_t i = 0; i < len; i++)
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{
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const u8 c = s[i];
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if (is_valid_base64c_char (c) == false) return false;
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}
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return true;
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}
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bool is_valid_base64c_char (const u8 c)
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{
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if ((c >= '0') && (c <= '9')) return true;
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if ((c >= 'A') && (c <= 'Z')) return true;
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if ((c >= 'a') && (c <= 'z')) return true;
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if (c == '_') return true;
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if (c == '-') return true;
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if (c == '=') return true;
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return false;
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}
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bool is_valid_hex_string (const u8 *s, const size_t len)
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{
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for (size_t i = 0; i < len; i++)
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{
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const u8 c = s[i];
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if (is_valid_hex_char (c) == false) return false;
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}
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return true;
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}
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bool is_valid_hex_char (const u8 c)
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{
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if ((c >= '0') && (c <= '9')) return true;
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if ((c >= 'A') && (c <= 'F')) return true;
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if ((c >= 'a') && (c <= 'f')) return true;
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return false;
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}
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bool is_valid_digit_string (const u8 *s, const size_t len)
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{
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for (size_t i = 0; i < len; i++)
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{
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const u8 c = s[i];
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if (is_valid_digit_char (c) == false) return false;
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}
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return true;
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}
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bool is_valid_digit_char (const u8 c)
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{
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if ((c >= '0') && (c <= '9')) return true;
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return false;
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}
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u8 hex_convert (const u8 c)
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{
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return (c & 15) + (c >> 6) * 9;
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}
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u8 hex_to_u8 (const u8 hex[2])
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{
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u8 v = 0;
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v |= (hex_convert (hex[1]) << 0);
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v |= (hex_convert (hex[0]) << 4);
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return (v);
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}
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u32 hex_to_u32 (const u8 hex[8])
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{
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u32 v = 0;
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v |= ((u32) hex_convert (hex[1]) << 0);
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v |= ((u32) hex_convert (hex[0]) << 4);
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v |= ((u32) hex_convert (hex[3]) << 8);
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v |= ((u32) hex_convert (hex[2]) << 12);
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v |= ((u32) hex_convert (hex[5]) << 16);
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v |= ((u32) hex_convert (hex[4]) << 20);
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v |= ((u32) hex_convert (hex[7]) << 24);
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v |= ((u32) hex_convert (hex[6]) << 28);
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return (v);
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}
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u64 hex_to_u64 (const u8 hex[16])
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{
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u64 v = 0;
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v |= ((u64) hex_convert (hex[ 1]) << 0);
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v |= ((u64) hex_convert (hex[ 0]) << 4);
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v |= ((u64) hex_convert (hex[ 3]) << 8);
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v |= ((u64) hex_convert (hex[ 2]) << 12);
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v |= ((u64) hex_convert (hex[ 5]) << 16);
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v |= ((u64) hex_convert (hex[ 4]) << 20);
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v |= ((u64) hex_convert (hex[ 7]) << 24);
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v |= ((u64) hex_convert (hex[ 6]) << 28);
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v |= ((u64) hex_convert (hex[ 9]) << 32);
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v |= ((u64) hex_convert (hex[ 8]) << 36);
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v |= ((u64) hex_convert (hex[11]) << 40);
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v |= ((u64) hex_convert (hex[10]) << 44);
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v |= ((u64) hex_convert (hex[13]) << 48);
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v |= ((u64) hex_convert (hex[12]) << 52);
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v |= ((u64) hex_convert (hex[15]) << 56);
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v |= ((u64) hex_convert (hex[14]) << 60);
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return (v);
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}
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void u8_to_hex (const u8 v, u8 hex[2])
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{
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const u8 tbl[0x10] =
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{
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'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
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'a', 'b', 'c', 'd', 'e', 'f',
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};
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hex[1] = tbl[v >> 0 & 15];
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hex[0] = tbl[v >> 4 & 15];
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}
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void u32_to_hex (const u32 v, u8 hex[8])
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{
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const u8 tbl[0x10] =
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{
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'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
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'a', 'b', 'c', 'd', 'e', 'f',
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};
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hex[1] = tbl[v >> 0 & 15];
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hex[0] = tbl[v >> 4 & 15];
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hex[3] = tbl[v >> 8 & 15];
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hex[2] = tbl[v >> 12 & 15];
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hex[5] = tbl[v >> 16 & 15];
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hex[4] = tbl[v >> 20 & 15];
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hex[7] = tbl[v >> 24 & 15];
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hex[6] = tbl[v >> 28 & 15];
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}
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void u64_to_hex (const u64 v, u8 hex[16])
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{
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const u8 tbl[0x10] =
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{
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'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
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'a', 'b', 'c', 'd', 'e', 'f',
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};
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hex[ 1] = tbl[v >> 0 & 15];
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hex[ 0] = tbl[v >> 4 & 15];
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hex[ 3] = tbl[v >> 8 & 15];
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hex[ 2] = tbl[v >> 12 & 15];
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hex[ 5] = tbl[v >> 16 & 15];
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hex[ 4] = tbl[v >> 20 & 15];
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hex[ 7] = tbl[v >> 24 & 15];
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hex[ 6] = tbl[v >> 28 & 15];
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hex[ 9] = tbl[v >> 32 & 15];
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hex[ 8] = tbl[v >> 36 & 15];
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hex[11] = tbl[v >> 40 & 15];
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hex[10] = tbl[v >> 44 & 15];
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hex[13] = tbl[v >> 48 & 15];
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hex[12] = tbl[v >> 52 & 15];
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hex[15] = tbl[v >> 56 & 15];
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hex[14] = tbl[v >> 60 & 15];
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}
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u8 int_to_base32 (const u8 c)
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{
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const u8 tbl[0x20] =
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{
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0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50,
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0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
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};
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return tbl[c];
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}
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u8 base32_to_int (const u8 c)
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{
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if ((c >= 'A') && (c <= 'Z')) return c - 'A';
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if ((c >= '2') && (c <= '7')) return c - '2' + 26;
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return 0;
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}
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u8 int_to_itoa32 (const u8 c)
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{
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const u8 tbl[0x20] =
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{
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0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66,
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0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76,
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};
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return tbl[c];
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}
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u8 itoa32_to_int (const u8 c)
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{
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if ((c >= '0') && (c <= '9')) return c - '0';
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if ((c >= 'a') && (c <= 'v')) return c - 'a' + 10;
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return 0;
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}
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u8 int_to_itoa64 (const u8 c)
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{
|
|
const u8 tbl[0x40] =
|
|
{
|
|
0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x41, 0x42, 0x43, 0x44,
|
|
0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51, 0x52, 0x53, 0x54,
|
|
0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a,
|
|
0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a,
|
|
};
|
|
|
|
return tbl[c];
|
|
}
|
|
|
|
u8 itoa64_to_int (const u8 c)
|
|
{
|
|
const u8 tbl[0x100] =
|
|
{
|
|
0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21,
|
|
0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31,
|
|
0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 0x00, 0x01,
|
|
0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a,
|
|
0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a,
|
|
0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x20, 0x21, 0x22, 0x23, 0x24,
|
|
0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, 0x34,
|
|
0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 0x00, 0x01, 0x02, 0x03, 0x04,
|
|
0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14,
|
|
0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, 0x24,
|
|
0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, 0x34,
|
|
0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 0x00, 0x01, 0x02, 0x03, 0x04,
|
|
0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14,
|
|
0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, 0x24,
|
|
0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, 0x34,
|
|
0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 0x00, 0x01, 0x02, 0x03, 0x04,
|
|
};
|
|
|
|
return tbl[c];
|
|
}
|
|
|
|
u8 int_to_base64 (const u8 c)
|
|
{
|
|
const u8 tbl[0x40] =
|
|
{
|
|
0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50,
|
|
0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66,
|
|
0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76,
|
|
0x77, 0x78, 0x79, 0x7a, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x2b, 0x2f,
|
|
};
|
|
|
|
return tbl[c];
|
|
}
|
|
|
|
u8 base64_to_int (const u8 c)
|
|
{
|
|
const u8 tbl[0x100] =
|
|
{
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3e, 0x00, 0x00, 0x00, 0x3f,
|
|
0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e,
|
|
0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28,
|
|
0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
};
|
|
|
|
return tbl[c];
|
|
}
|
|
|
|
u8 int_to_base64url (const u8 c)
|
|
{
|
|
const u8 tbl[0x40] =
|
|
{
|
|
0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50,
|
|
0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66,
|
|
0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76,
|
|
0x77, 0x78, 0x79, 0x7a, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x2d, 0x5f,
|
|
};
|
|
|
|
return tbl[c];
|
|
}
|
|
|
|
u8 base64url_to_int (const u8 c)
|
|
{
|
|
const u8 tbl[0x100] =
|
|
{
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3e, 0x00, 0x00,
|
|
0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e,
|
|
0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x00, 0x00, 0x00, 0x00, 0x3f,
|
|
0x00, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28,
|
|
0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
};
|
|
|
|
return tbl[c];
|
|
}
|
|
|
|
u8 int_to_bf64 (const u8 c)
|
|
{
|
|
const u8 tbl[0x40] =
|
|
{
|
|
0x2e, 0x2f, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e,
|
|
0x4f, 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x61, 0x62, 0x63, 0x64,
|
|
0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74,
|
|
0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39,
|
|
};
|
|
|
|
return tbl[c];
|
|
}
|
|
|
|
u8 bf64_to_int (const u8 c)
|
|
{
|
|
const u8 tbl[0x100] =
|
|
{
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
|
|
0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10,
|
|
0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a,
|
|
0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
};
|
|
|
|
return tbl[c];
|
|
}
|
|
|
|
u8 int_to_lotus64 (const u8 c)
|
|
{
|
|
if (c < 10) return '0' + c;
|
|
if (c < 36) return 'A' + c - 10;
|
|
if (c < 62) return 'a' + c - 36;
|
|
if (c == 62) return '+';
|
|
if (c == 63) return '/';
|
|
|
|
return 0;
|
|
}
|
|
|
|
u8 lotus64_to_int (const u8 c)
|
|
{
|
|
if ((c >= '0') && (c <= '9')) return c - '0';
|
|
if ((c >= 'A') && (c <= 'Z')) return c - 'A' + 10;
|
|
if ((c >= 'a') && (c <= 'z')) return c - 'a' + 36;
|
|
if (c == '+') return 62;
|
|
if (c == '/') return 63;
|
|
|
|
return 0;
|
|
}
|
|
|
|
size_t base32_decode (u8 (*f) (const u8), const u8 *in_buf, const size_t in_len, u8 *out_buf)
|
|
{
|
|
const u8 *in_ptr = in_buf;
|
|
|
|
u8 *out_ptr = out_buf;
|
|
|
|
for (size_t i = 0; i < in_len; i += 8)
|
|
{
|
|
const u8 f0 = ((i + 0) < in_len) ? in_ptr[0] : 0;
|
|
const u8 f1 = ((i + 1) < in_len) ? in_ptr[1] : 0;
|
|
const u8 f2 = ((i + 2) < in_len) ? in_ptr[2] : 0;
|
|
const u8 f3 = ((i + 3) < in_len) ? in_ptr[3] : 0;
|
|
const u8 f4 = ((i + 4) < in_len) ? in_ptr[4] : 0;
|
|
const u8 f5 = ((i + 5) < in_len) ? in_ptr[5] : 0;
|
|
const u8 f6 = ((i + 6) < in_len) ? in_ptr[6] : 0;
|
|
const u8 f7 = ((i + 7) < in_len) ? in_ptr[7] : 0;
|
|
|
|
const u8 out_val0 = f (f0 & 0x7f);
|
|
const u8 out_val1 = f (f1 & 0x7f);
|
|
const u8 out_val2 = f (f2 & 0x7f);
|
|
const u8 out_val3 = f (f3 & 0x7f);
|
|
const u8 out_val4 = f (f4 & 0x7f);
|
|
const u8 out_val5 = f (f5 & 0x7f);
|
|
const u8 out_val6 = f (f6 & 0x7f);
|
|
const u8 out_val7 = f (f7 & 0x7f);
|
|
|
|
out_ptr[0] = ((out_val0 << 3) & 0xf8) | ((out_val1 >> 2) & 0x07);
|
|
out_ptr[1] = ((out_val1 << 6) & 0xc0) | ((out_val2 << 1) & 0x3e) | ((out_val3 >> 4) & 0x01);
|
|
out_ptr[2] = ((out_val3 << 4) & 0xf0) | ((out_val4 >> 1) & 0x0f);
|
|
out_ptr[3] = ((out_val4 << 7) & 0x80) | ((out_val5 << 2) & 0x7c) | ((out_val6 >> 3) & 0x03);
|
|
out_ptr[4] = ((out_val6 << 5) & 0xe0) | ((out_val7 >> 0) & 0x1f);
|
|
|
|
in_ptr += 8;
|
|
out_ptr += 5;
|
|
}
|
|
|
|
size_t tmp_len = 0;
|
|
|
|
for (size_t i = 0; i < in_len; i++, tmp_len++)
|
|
{
|
|
if (in_buf[i] != '=') continue;
|
|
|
|
break;
|
|
}
|
|
|
|
size_t out_len = (tmp_len * 5) / 8;
|
|
|
|
return out_len;
|
|
}
|
|
|
|
size_t base32_encode (u8 (*f) (const u8), const u8 *in_buf, const size_t in_len, u8 *out_buf)
|
|
{
|
|
const u8 *in_ptr = in_buf;
|
|
|
|
u8 *out_ptr = out_buf;
|
|
|
|
for (size_t i = 0; i < in_len; i += 5)
|
|
{
|
|
const u8 f0 = ((i + 0) < in_len) ? in_ptr[0] : 0;
|
|
const u8 f1 = ((i + 1) < in_len) ? in_ptr[1] : 0;
|
|
const u8 f2 = ((i + 2) < in_len) ? in_ptr[2] : 0;
|
|
const u8 f3 = ((i + 3) < in_len) ? in_ptr[3] : 0;
|
|
const u8 f4 = ((i + 4) < in_len) ? in_ptr[4] : 0;
|
|
|
|
const u8 out_val0 = f ( ((f0 >> 3) & 0x1f));
|
|
const u8 out_val1 = f (((f0 << 2) & 0x1c) | ((f1 >> 6) & 0x03));
|
|
const u8 out_val2 = f ( ((f1 >> 1) & 0x1f));
|
|
const u8 out_val3 = f (((f1 << 4) & 0x10) | ((f2 >> 4) & 0x0f));
|
|
const u8 out_val4 = f (((f2 << 1) & 0x1e) | ((f3 >> 7) & 0x01));
|
|
const u8 out_val5 = f ( ((f3 >> 2) & 0x1f));
|
|
const u8 out_val6 = f (((f3 << 3) & 0x18) | ((f4 >> 5) & 0x07));
|
|
const u8 out_val7 = f ( ((f4 >> 0) & 0x1f));
|
|
|
|
out_ptr[0] = out_val0 & 0x7f;
|
|
out_ptr[1] = out_val1 & 0x7f;
|
|
out_ptr[2] = out_val2 & 0x7f;
|
|
out_ptr[3] = out_val3 & 0x7f;
|
|
out_ptr[4] = out_val4 & 0x7f;
|
|
out_ptr[5] = out_val5 & 0x7f;
|
|
out_ptr[6] = out_val6 & 0x7f;
|
|
out_ptr[7] = out_val7 & 0x7f;
|
|
|
|
in_ptr += 5;
|
|
out_ptr += 8;
|
|
}
|
|
|
|
int out_len = (int) (((0.5 + in_len) * 8) / 5); // ceil (in_len * 8 / 5)
|
|
|
|
while (out_len % 8)
|
|
{
|
|
out_buf[out_len] = '=';
|
|
|
|
out_len++;
|
|
}
|
|
|
|
return out_len;
|
|
}
|
|
|
|
size_t base64_decode (u8 (*f) (const u8), const u8 *in_buf, const size_t in_len, u8 *out_buf)
|
|
{
|
|
const u8 *in_ptr = in_buf;
|
|
|
|
u8 *out_ptr = out_buf;
|
|
|
|
for (size_t i = 0; i < in_len; i += 4)
|
|
{
|
|
const u8 f0 = ((i + 0) < in_len) ? in_ptr[0] : 0;
|
|
const u8 f1 = ((i + 1) < in_len) ? in_ptr[1] : 0;
|
|
const u8 f2 = ((i + 2) < in_len) ? in_ptr[2] : 0;
|
|
const u8 f3 = ((i + 3) < in_len) ? in_ptr[3] : 0;
|
|
|
|
const u8 out_val0 = f (f0 & 0x7f);
|
|
const u8 out_val1 = f (f1 & 0x7f);
|
|
const u8 out_val2 = f (f2 & 0x7f);
|
|
const u8 out_val3 = f (f3 & 0x7f);
|
|
|
|
out_ptr[0] = ((out_val0 << 2) & 0xfc) | ((out_val1 >> 4) & 0x03);
|
|
out_ptr[1] = ((out_val1 << 4) & 0xf0) | ((out_val2 >> 2) & 0x0f);
|
|
out_ptr[2] = ((out_val2 << 6) & 0xc0) | ((out_val3 >> 0) & 0x3f);
|
|
|
|
in_ptr += 4;
|
|
out_ptr += 3;
|
|
}
|
|
|
|
size_t tmp_len = 0;
|
|
|
|
for (size_t i = 0; i < in_len; i++, tmp_len++)
|
|
{
|
|
if (in_buf[i] != '=') continue;
|
|
|
|
break;
|
|
}
|
|
|
|
size_t out_len = (tmp_len * 6) / 8;
|
|
|
|
return out_len;
|
|
}
|
|
|
|
size_t base64_encode (u8 (*f) (const u8), const u8 *in_buf, const size_t in_len, u8 *out_buf)
|
|
{
|
|
const u8 *in_ptr = in_buf;
|
|
|
|
u8 *out_ptr = out_buf;
|
|
|
|
for (size_t i = 0; i < in_len; i += 3)
|
|
{
|
|
const u8 f0 = ((i + 0) < in_len) ? in_ptr[0] : 0;
|
|
const u8 f1 = ((i + 1) < in_len) ? in_ptr[1] : 0;
|
|
const u8 f2 = ((i + 2) < in_len) ? in_ptr[2] : 0;
|
|
|
|
const u8 out_val0 = f ( ((f0 >> 2) & 0x3f));
|
|
const u8 out_val1 = f (((f0 << 4) & 0x30) | ((f1 >> 4) & 0x0f));
|
|
const u8 out_val2 = f (((f1 << 2) & 0x3c) | ((f2 >> 6) & 0x03));
|
|
const u8 out_val3 = f ( ((f2 >> 0) & 0x3f));
|
|
|
|
out_ptr[0] = out_val0 & 0x7f;
|
|
out_ptr[1] = out_val1 & 0x7f;
|
|
out_ptr[2] = out_val2 & 0x7f;
|
|
out_ptr[3] = out_val3 & 0x7f;
|
|
|
|
in_ptr += 3;
|
|
out_ptr += 4;
|
|
}
|
|
|
|
int out_len = (int) (((0.5 + in_len) * 8) / 6); // ceil (in_len * 8 / 6)
|
|
|
|
while (out_len % 4)
|
|
{
|
|
out_buf[out_len] = '=';
|
|
|
|
out_len++;
|
|
}
|
|
|
|
return out_len;
|
|
}
|
|
|
|
void lowercase (u8 *buf, const size_t len)
|
|
{
|
|
for (size_t i = 0; i < len; i++) buf[i] = (u8) tolower ((int) buf[i]);
|
|
}
|
|
|
|
void uppercase (u8 *buf, const size_t len)
|
|
{
|
|
for (size_t i = 0; i < len; i++) buf[i] = (u8) toupper ((int) buf[i]);
|
|
}
|
|
|
|
u16 v16a_from_v32 (const u32 v32)
|
|
{
|
|
vconv32_t v;
|
|
|
|
v.v32 = v32;
|
|
|
|
return v.v16a;
|
|
}
|
|
|
|
u16 v16b_from_v32 (const u32 v32)
|
|
{
|
|
vconv32_t v;
|
|
|
|
v.v32 = v32;
|
|
|
|
return v.v16b;
|
|
}
|
|
|
|
u32 v32_from_v16ab (const u16 v16a, const u16 v16b)
|
|
{
|
|
vconv32_t v;
|
|
|
|
v.v16a = v16a;
|
|
v.v16b = v16b;
|
|
|
|
return v.v32;
|
|
}
|
|
|
|
u32 v32a_from_v64 (const u64 v64)
|
|
{
|
|
vconv64_t v;
|
|
|
|
v.v64 = v64;
|
|
|
|
return v.v32a;
|
|
}
|
|
|
|
u32 v32b_from_v64 (const u64 v64)
|
|
{
|
|
vconv64_t v;
|
|
|
|
v.v64 = v64;
|
|
|
|
return v.v32b;
|
|
}
|
|
|
|
u64 v64_from_v32ab (const u32 v32a, const u32 v32b)
|
|
{
|
|
vconv64_t v;
|
|
|
|
v.v32a = v32a;
|
|
v.v32b = v32b;
|
|
|
|
return v.v64;
|
|
}
|