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Diffstat (limited to 'lib/scryptenc/scryptenc.h')
| -rw-r--r-- | lib/scryptenc/scryptenc.h | 112 |
1 files changed, 0 insertions, 112 deletions
diff --git a/lib/scryptenc/scryptenc.h b/lib/scryptenc/scryptenc.h deleted file mode 100644 index 7dc3dd3..0000000 --- a/lib/scryptenc/scryptenc.h +++ /dev/null @@ -1,112 +0,0 @@ -/*- - * Copyright 2009 Colin Percival - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This file was originally written by Colin Percival as part of the Tarsnap - * online backup system. - */ -#ifndef _SCRYPTENC_H_ -#define _SCRYPTENC_H_ - -#include <stdint.h> -#include <stdio.h> - -/** - * The parameters maxmem, maxmemfrac, and maxtime used by all of these - * functions are defined as follows: - * maxmem - maximum number of bytes of storage to use for V array (which is - * by far the largest consumer of memory). If this value is set to 0, no - * maximum will be enforced; any other value less than 1 MiB will be - * treated as 1 MiB. - * maxmemfrac - maximum fraction of available storage to use for the V array, - * where "available storage" is defined as the minimum out of the - * RLIMIT_AS, RLIMIT_DATA. and RLIMIT_RSS resource limits (if any are - * set). If this value is set to 0 or more than 0.5 it will be treated - * as 0.5; and this value will never cause a limit of less than 1 MiB to - * be enforced. - * maxtime - maximum amount of CPU time to spend computing the derived keys, - * in seconds. This limit is only approximately enforced; the CPU - * performance is estimated and parameter limits are chosen accordingly. - * For the encryption functions, the parameters to the scrypt key derivation - * function are chosen to make the key as strong as possible subject to the - * specified limits; for the decryption functions, the parameters used are - * compared to the computed limits and an error is returned if decrypting - * the data would take too much memory or CPU time. - */ -/** - * Return codes from scrypt(enc|dec)_(buf|file): - * 0 success - * 1 getrlimit or sysctl(hw.usermem) failed - * 2 clock_getres or clock_gettime failed - * 3 error computing derived key - * 4 could not read salt from /dev/urandom - * 5 error in OpenSSL - * 6 malloc failed - * 7 data is not a valid scrypt-encrypted block - * 8 unrecognized scrypt format - * 9 decrypting file would take too much memory - * 10 decrypting file would take too long - * 11 password is incorrect - * 12 error writing output file - * 13 error reading input file - */ - -/** - * scryptenc_buf(inbuf, inbuflen, outbuf, passwd, passwdlen, - * maxmem, maxmemfrac, maxtime): - * Encrypt inbuflen bytes from inbuf, writing the resulting inbuflen + 128 - * bytes to outbuf. - */ -int scryptenc_buf(const uint8_t *, size_t, uint8_t *, - const uint8_t *, size_t, size_t, double, double); - -/** - * scryptdec_buf(inbuf, inbuflen, outbuf, outlen, passwd, passwdlen, - * maxmem, maxmemfrac, maxtime): - * Decrypt inbuflen bytes from inbuf, writing the result into outbuf and the - * decrypted data length to outlen. The allocated length of outbuf must - * be at least inbuflen. - */ -int scryptdec_buf(const uint8_t *, size_t, uint8_t *, size_t *, - const uint8_t *, size_t, size_t, double, double); - -/** - * scryptenc_file(infile, outfile, passwd, passwdlen, - * maxmem, maxmemfrac, maxtime): - * Read a stream from infile and encrypt it, writing the resulting stream to - * outfile. - */ -int scryptenc_file(FILE *, FILE *, const uint8_t *, size_t, - size_t, double, double); - -/** - * scryptdec_file(infile, outfile, passwd, passwdlen, - * maxmem, maxmemfrac, maxtime): - * Read a stream from infile and decrypt it, writing the resulting stream to - * outfile. - */ -int scryptdec_file(FILE *, FILE *, const uint8_t *, size_t, - size_t, double, double); - -#endif /* !_SCRYPTENC_H_ */ |