diff options
Diffstat (limited to 'Utilities/cmcurl/lib/hmac.c')
| -rw-r--r-- | Utilities/cmcurl/lib/hmac.c | 52 |
1 files changed, 45 insertions, 7 deletions
diff --git a/Utilities/cmcurl/lib/hmac.c b/Utilities/cmcurl/lib/hmac.c index bf49ebec5..e4fea8a50 100644 --- a/Utilities/cmcurl/lib/hmac.c +++ b/Utilities/cmcurl/lib/hmac.c @@ -5,7 +5,7 @@ * | (__| |_| | _ <| |___ * \___|\___/|_| \_\_____| * - * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al. + * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al. * * This software is licensed as described in the file COPYING, which * you should have received as part of this distribution. The terms @@ -30,6 +30,7 @@ #include "curl_hmac.h" #include "curl_memory.h" +#include "warnless.h" /* The last #include file should be: */ #include "memdebug.h" @@ -47,13 +48,13 @@ static const unsigned char hmac_opad = 0x5C; -HMAC_context * -Curl_HMAC_init(const HMAC_params * hashparams, +struct HMAC_context * +Curl_HMAC_init(const struct HMAC_params *hashparams, const unsigned char *key, unsigned int keylen) { size_t i; - HMAC_context *ctxt; + struct HMAC_context *ctxt; unsigned char *hkey; unsigned char b; @@ -100,7 +101,7 @@ Curl_HMAC_init(const HMAC_params * hashparams, return ctxt; } -int Curl_HMAC_update(HMAC_context * ctxt, +int Curl_HMAC_update(struct HMAC_context *ctxt, const unsigned char *data, unsigned int len) { @@ -110,9 +111,9 @@ int Curl_HMAC_update(HMAC_context * ctxt, } -int Curl_HMAC_final(HMAC_context *ctxt, unsigned char *result) +int Curl_HMAC_final(struct HMAC_context *ctxt, unsigned char *result) { - const HMAC_params * hashparams = ctxt->hmac_hash; + const struct HMAC_params *hashparams = ctxt->hmac_hash; /* Do not get result if called with a null parameter: only release storage. */ @@ -129,4 +130,41 @@ int Curl_HMAC_final(HMAC_context *ctxt, unsigned char *result) return 0; } +/* + * Curl_hmacit() + * + * This is used to generate a HMAC hash, for the specified input data, given + * the specified hash function and key. + * + * Parameters: + * + * hashparams [in] - The hash function (Curl_HMAC_MD5). + * key [in] - The key to use. + * keylen [in] - The length of the key. + * data [in] - The data to encrypt. + * datalen [in] - The length of the data. + * output [in/out] - The output buffer. + * + * Returns CURLE_OK on success. + */ +CURLcode Curl_hmacit(const struct HMAC_params *hashparams, + const unsigned char *key, const size_t keylen, + const unsigned char *data, const size_t datalen, + unsigned char *output) +{ + struct HMAC_context *ctxt = + Curl_HMAC_init(hashparams, key, curlx_uztoui(keylen)); + + if(!ctxt) + return CURLE_OUT_OF_MEMORY; + + /* Update the digest with the given challenge */ + Curl_HMAC_update(ctxt, data, curlx_uztoui(datalen)); + + /* Finalise the digest */ + Curl_HMAC_final(ctxt, output); + + return CURLE_OK; +} + #endif /* CURL_DISABLE_CRYPTO_AUTH */ |