diff --git a/src/lib/libc/crypt/bcrypt.c b/src/lib/libc/crypt/bcrypt.c index b108cfe0..2df25082 100644 --- a/src/lib/libc/crypt/bcrypt.c +++ b/src/lib/libc/crypt/bcrypt.c @@ -1,4 +1,4 @@ -/* $OpenBSD: bcrypt.c,v 1.29 2014/02/24 19:45:43 tedu Exp $ */ +/* $OpenBSD: bcrypt.c,v 1.30 2014/03/19 02:43:03 tedu Exp $ */ /* * Copyright 1997 Niels Provos @@ -72,61 +72,6 @@ static char encrypted[_PASSWORD_LEN]; static char gsalt[7 + (BCRYPT_MAXSALT * 4 + 2) / 3 + 1]; static char error[] = ":"; -const static u_int8_t Base64Code[] = -"./ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"; - -const static u_int8_t index_64[128] = { - 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 0, 1, 54, 55, - 56, 57, 58, 59, 60, 61, 62, 63, 255, 255, - 255, 255, 255, 255, 255, 2, 3, 4, 5, 6, - 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, - 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, - 255, 255, 255, 255, 255, 255, 28, 29, 30, - 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, - 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, - 51, 52, 53, 255, 255, 255, 255, 255 -}; -#define CHAR64(c) ( (c) > 127 ? 255 : index_64[(c)]) - -static void -decode_base64(u_int8_t *buffer, u_int16_t len, u_int8_t *data) -{ - u_int8_t *bp = buffer; - u_int8_t *p = data; - u_int8_t c1, c2, c3, c4; - while (bp < buffer + len) { - c1 = CHAR64(*p); - c2 = CHAR64(*(p + 1)); - - /* Invalid data */ - if (c1 == 255 || c2 == 255) - break; - - *bp++ = (c1 << 2) | ((c2 & 0x30) >> 4); - if (bp >= buffer + len) - break; - - c3 = CHAR64(*(p + 2)); - if (c3 == 255) - break; - - *bp++ = ((c2 & 0x0f) << 4) | ((c3 & 0x3c) >> 2); - if (bp >= buffer + len) - break; - - c4 = CHAR64(*(p + 3)); - if (c4 == 255) - break; - *bp++ = ((c3 & 0x03) << 6) | c4; - - p += 4; - } -} - static void encode_salt(char *salt, u_int8_t *csalt, u_int16_t clen, u_int8_t logr) { @@ -284,6 +229,61 @@ bcrypt(const char *key, const char *salt) return encrypted; } +const static u_int8_t Base64Code[] = +"./ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"; + +const static u_int8_t index_64[128] = { + 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 0, 1, 54, 55, + 56, 57, 58, 59, 60, 61, 62, 63, 255, 255, + 255, 255, 255, 255, 255, 2, 3, 4, 5, 6, + 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, + 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, + 255, 255, 255, 255, 255, 255, 28, 29, 30, + 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, + 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, + 51, 52, 53, 255, 255, 255, 255, 255 +}; +#define CHAR64(c) ( (c) > 127 ? 255 : index_64[(c)]) + +static void +decode_base64(u_int8_t *buffer, u_int16_t len, u_int8_t *data) +{ + u_int8_t *bp = buffer; + u_int8_t *p = data; + u_int8_t c1, c2, c3, c4; + while (bp < buffer + len) { + c1 = CHAR64(*p); + c2 = CHAR64(*(p + 1)); + + /* Invalid data */ + if (c1 == 255 || c2 == 255) + break; + + *bp++ = (c1 << 2) | ((c2 & 0x30) >> 4); + if (bp >= buffer + len) + break; + + c3 = CHAR64(*(p + 2)); + if (c3 == 255) + break; + + *bp++ = ((c2 & 0x0f) << 4) | ((c3 & 0x3c) >> 2); + if (bp >= buffer + len) + break; + + c4 = CHAR64(*(p + 3)); + if (c4 == 255) + break; + *bp++ = ((c3 & 0x03) << 6) | c4; + + p += 4; + } +} + static void encode_base64(u_int8_t *buffer, u_int8_t *data, u_int16_t len) { @@ -313,33 +313,3 @@ encode_base64(u_int8_t *buffer, u_int8_t *data, u_int16_t len) } *bp = '\0'; } -#if 0 -void -main() -{ - char blubber[73]; - char salt[100]; - char *p; - salt[0] = '$'; - salt[1] = BCRYPT_VERSION; - salt[2] = '$'; - - snprintf(salt + 3, 4, "%2.2u$", 5); - - printf("24 bytes of salt: "); - fgets(salt + 6, sizeof(salt) - 6, stdin); - salt[99] = 0; - printf("72 bytes of password: "); - fpurge(stdin); - fgets(blubber, sizeof(blubber), stdin); - blubber[72] = 0; - - p = crypt(blubber, salt); - printf("Passwd entry: %s\n\n", p); - - p = bcrypt_gensalt(5); - printf("Generated salt: %s\n", p); - p = crypt(blubber, p); - printf("Passwd entry: %s\n", p); -} -#endif