Mercurial > dropbear

annotate libtomcrypt/src/hashes/helper/hash_filehandle.c @ 1902:4a6725ac957c

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Revert "Don't include sk keys at all in KEX list" This reverts git commit f972813ecdc7bb981d25b5a63638bd158f1c8e72. The sk algorithms need to remain in the sigalgs list so that they are included in the server-sig-algs ext-info message sent by the server. RFC8308 for server-sig-algs requires that all algorithms are listed (though OpenSSH client 8.4p1 tested doesn't require that)
author Matt Johnston <matt@ucc.asn.au>
date Thu, 24 Mar 2022 13:42:08 +0800
parents 1ff2a1034c52
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
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2 *
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3 * LibTomCrypt is a library that provides various cryptographic
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4 * algorithms in a highly modular and flexible manner.
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5 *
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6 * The library is free for all purposes without any express
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7 * guarantee it works.
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8 */
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9 #include "tomcrypt.h"
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10
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11 #ifndef LTC_NO_FILE
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12 /**
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13 @file hash_filehandle.c
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14 Hash open files, Tom St Denis
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15 */
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16
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17 /**
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18 Hash data from an open file handle.
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19 @param hash The index of the hash you want to use
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20 @param in The FILE* handle of the file you want to hash
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21 @param out [out] The destination of the digest
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22 @param outlen [in/out] The max size and resulting size of the digest
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23 @result CRYPT_OK if successful
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24 */
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25 int hash_filehandle(int hash, FILE *in, unsigned char *out, unsigned long *outlen)
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26 {
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27 hash_state md;
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28 unsigned char *buf;
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29 size_t x;
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30 int err;
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31
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32 LTC_ARGCHK(out != NULL);
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33 LTC_ARGCHK(outlen != NULL);
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34 LTC_ARGCHK(in != NULL);
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35
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36 if ((buf = XMALLOC(LTC_FILE_READ_BUFSIZE)) == NULL) {
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37 return CRYPT_MEM;
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38 }
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39
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40 if ((err = hash_is_valid(hash)) != CRYPT_OK) {
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41 goto LBL_ERR;
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42 }
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44 if (*outlen < hash_descriptor[hash].hashsize) {
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45 *outlen = hash_descriptor[hash].hashsize;
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46 err = CRYPT_BUFFER_OVERFLOW;
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47 goto LBL_ERR;
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48 }
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49 if ((err = hash_descriptor[hash].init(&md)) != CRYPT_OK) {
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50 goto LBL_ERR;
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51 }
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52
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53 do {
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54 x = fread(buf, 1, LTC_FILE_READ_BUFSIZE, in);
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55 if ((err = hash_descriptor[hash].process(&md, buf, (unsigned long)x)) != CRYPT_OK) {
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56 goto LBL_CLEANBUF;
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57 }
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58 } while (x == LTC_FILE_READ_BUFSIZE);
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59 if ((err = hash_descriptor[hash].done(&md, out)) == CRYPT_OK) {
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60 *outlen = hash_descriptor[hash].hashsize;
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61 }
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62
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63 LBL_CLEANBUF:
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64 zeromem(buf, LTC_FILE_READ_BUFSIZE);
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65 LBL_ERR:
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66 XFREE(buf);
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67 return err;
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68 }
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69 #endif /* #ifndef LTC_NO_FILE */
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71
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72 /* ref: $Format:%D$ */
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73 /* git commit: $Format:%H$ */
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74 /* commit time: $Format:%ai$ */