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3aa3cc9b05
Generate alphanumerical random strings. Prior this change curl used to create random hex strings. This was mostly okay, but having alphanumerical random strings is better: The strings have more entropy in the same space. The MIME multipart boundary used to be mere 64-bits of randomness due to being 16 hex chars. With these changes the boundary is 22 alphanumerical chars, or little over 130 bits of randomness. Closes #11838
51 lines
1.9 KiB
C
51 lines
1.9 KiB
C
#ifndef HEADER_CURL_RAND_H
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#define HEADER_CURL_RAND_H
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/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at https://curl.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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* SPDX-License-Identifier: curl
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*
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***************************************************************************/
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CURLcode Curl_rand(struct Curl_easy *data, unsigned char *rnd, size_t num);
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/*
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* Curl_rand_hex() fills the 'rnd' buffer with a given 'num' size with random
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* hexadecimal digits PLUS a null-terminating byte. It must be an odd number
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* size.
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*/
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CURLcode Curl_rand_hex(struct Curl_easy *data, unsigned char *rnd,
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size_t num);
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/*
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* Curl_rand_alnum() fills the 'rnd' buffer with a given 'num' size with random
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* alphanumerical chars PLUS a null-terminating byte.
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*/
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CURLcode Curl_rand_alnum(struct Curl_easy *data, unsigned char *rnd,
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size_t num);
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#ifdef WIN32
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/* Random generator shared between the Schannel vtls and Curl_rand*()
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functions */
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CURLcode Curl_win32_random(unsigned char *entropy, size_t length);
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#endif
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#endif /* HEADER_CURL_RAND_H */
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