X-Git-Url: https://git.mdrn.pl/wl-app.git/blobdiff_plain/53b27422d140022594fc241cca91c3183be57bca..48b2fe9f7c2dc3d9aeaaa6dbfb27c7da4f3235ff:/iOS/Pods/SSZipArchive/SSZipArchive/minizip/aes/hmac.c

diff --git a/iOS/Pods/SSZipArchive/SSZipArchive/minizip/aes/hmac.c b/iOS/Pods/SSZipArchive/SSZipArchive/minizip/aes/hmac.c
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+/*
+---------------------------------------------------------------------------
+Copyright (c) 1998-2010, Brian Gladman, Worcester, UK. All rights reserved.
+
+The redistribution and use of this software (with or without changes)
+is allowed without the payment of fees or royalties provided that:
+
+  source code distributions include the above copyright notice, this
+  list of conditions and the following disclaimer;
+
+  binary distributions include the above copyright notice, this list
+  of conditions and the following disclaimer in their documentation.
+
+This software is provided 'as is' with no explicit or implied warranties
+in respect of its operation, including, but not limited to, correctness
+and fitness for purpose.
+---------------------------------------------------------------------------
+Issue Date: 20/12/2007
+
+This is an implementation of HMAC, the FIPS standard keyed hash function
+*/
+
+#include "hmac.h"
+
+#if defined(__cplusplus)
+extern "C"
+{
+#endif
+
+/* initialise the HMAC context to zero */
+int hmac_sha_begin(enum hmac_hash hash, hmac_ctx cx[1])
+{
+    memset(cx, 0, sizeof(hmac_ctx));
+    switch(hash)
+    {
+#ifdef SHA_1
+    case HMAC_SHA1:
+        cx->f_begin = (hf_begin *)sha1_begin;
+        cx->f_hash  = (hf_hash *)sha1_hash;
+        cx->f_end   = (hf_end *)sha1_end;
+        cx->input_len = SHA1_BLOCK_SIZE;
+        cx->output_len = SHA1_DIGEST_SIZE;
+        break;
+#endif
+#ifdef SHA_224
+    case HMAC_SHA224:
+        cx->f_begin = (hf_begin *)sha224_begin;
+        cx->f_hash  = (hf_hash *)sha224_hash;
+        cx->f_end   = (hf_end *)sha224_end;
+        cx->input_len = SHA224_BLOCK_SIZE;
+        cx->output_len = SHA224_DIGEST_SIZE;
+        break;
+#endif
+#ifdef SHA_256
+    case HMAC_SHA256:
+        cx->f_begin = (hf_begin *)sha256_begin;
+        cx->f_hash  = (hf_hash *)sha256_hash;
+        cx->f_end   = (hf_end *)sha256_end;
+        cx->input_len = SHA256_BLOCK_SIZE;
+        cx->output_len = SHA256_DIGEST_SIZE;
+        break;
+#endif
+#ifdef SHA_384
+    case HMAC_SHA384:
+        cx->f_begin = (hf_begin *)sha384_begin;
+        cx->f_hash  = (hf_hash *)sha384_hash;
+        cx->f_end   = (hf_end *)sha384_end;
+        cx->input_len = SHA384_BLOCK_SIZE;
+        cx->output_len = SHA384_DIGEST_SIZE;
+        break;
+#endif
+#ifdef SHA_512
+    case HMAC_SHA512:
+        cx->f_begin = (hf_begin *)sha512_begin;
+        cx->f_hash  = (hf_hash *)sha512_hash;
+        cx->f_end   = (hf_end *)sha512_end;
+        cx->input_len = SHA512_BLOCK_SIZE;
+        cx->output_len = SHA512_DIGEST_SIZE;
+        break;
+    case HMAC_SHA512_256:
+        cx->f_begin = (hf_begin *)sha512_256_begin;
+        cx->f_hash  = (hf_hash *)sha512_256_hash;
+        cx->f_end   = (hf_end *)sha512_256_end;
+        cx->input_len = SHA512_256_BLOCK_SIZE;
+        cx->output_len = SHA512_256_DIGEST_SIZE;
+        break;
+    case HMAC_SHA512_224:
+        cx->f_begin = (hf_begin *)sha512_224_begin;
+        cx->f_hash  = (hf_hash *)sha512_224_hash;
+        cx->f_end   = (hf_end *)sha512_224_end;
+        cx->input_len = SHA512_224_BLOCK_SIZE;
+        cx->output_len = SHA512_224_DIGEST_SIZE;
+        break;
+    case HMAC_SHA512_192:
+        cx->f_begin = (hf_begin *)sha512_192_begin;
+        cx->f_hash  = (hf_hash *)sha512_192_hash;
+        cx->f_end   = (hf_end *)sha512_192_end;
+        cx->input_len = SHA512_192_BLOCK_SIZE;
+        cx->output_len = SHA512_192_DIGEST_SIZE;
+        break;
+    case HMAC_SHA512_128:
+        cx->f_begin = (hf_begin *)sha512_128_begin;
+        cx->f_hash  = (hf_hash *)sha512_128_hash;
+        cx->f_end   = (hf_begin *)sha512_128_end;
+        cx->input_len = SHA512_128_BLOCK_SIZE;
+        cx->output_len = SHA512_128_DIGEST_SIZE;
+        break;
+#endif
+    }
+    return (int)cx->output_len;
+}
+
+/* input the HMAC key (can be called multiple times)    */
+int hmac_sha_key(const unsigned char key[], unsigned long key_len, hmac_ctx cx[1])
+{
+    if(cx->klen == HMAC_IN_DATA)                /* error if further key input   */
+        return EXIT_FAILURE;                    /* is attempted in data mode    */
+
+    if(cx->klen + key_len > cx->input_len)      /* if the key has to be hashed  */
+    {
+        if(cx->klen <= cx->input_len)           /* if the hash has not yet been */
+        {                                       /* started, initialise it and   */
+            cx->f_begin(cx->sha_ctx);           /* hash stored key characters   */
+            cx->f_hash(cx->key, cx->klen, cx->sha_ctx);
+        }
+
+        cx->f_hash(key, key_len, cx->sha_ctx);  /* hash long key data into hash */
+    }
+    else                                        /* otherwise store key data     */
+        memcpy(cx->key + cx->klen, key, key_len);
+
+    cx->klen += key_len;                        /* update the key length count  */
+    return EXIT_SUCCESS;
+}
+
+/* input the HMAC data (can be called multiple times) - */
+/* note that this call terminates the key input phase   */
+void hmac_sha_data(const unsigned char data[], unsigned long data_len, hmac_ctx cx[1])
+{   unsigned int i;
+
+    if(cx->klen != HMAC_IN_DATA)                /* if not yet in data phase */
+    {
+        if(cx->klen > cx->input_len)            /* if key is being hashed   */
+        {                                       /* complete the hash and    */
+            cx->f_end(cx->key, cx->sha_ctx);    /* store the result as the  */
+            cx->klen = cx->output_len;          /* key and set new length   */
+        }
+
+        /* pad the key if necessary */
+        memset(cx->key + cx->klen, 0, cx->input_len - cx->klen);
+
+        /* xor ipad into key value  */
+        for(i = 0; i < (cx->input_len >> 2); ++i)
+            ((uint32_t*)cx->key)[i] ^= 0x36363636;
+
+        /* and start hash operation */
+        cx->f_begin(cx->sha_ctx);
+        cx->f_hash(cx->key, cx->input_len, cx->sha_ctx);
+
+        /* mark as now in data mode */
+        cx->klen = HMAC_IN_DATA;
+    }
+
+    /* hash the data (if any)       */
+    if(data_len)
+        cx->f_hash(data, data_len, cx->sha_ctx);
+}
+
+/* compute and output the MAC value */
+void hmac_sha_end(unsigned char mac[], unsigned long mac_len, hmac_ctx cx[1])
+{   unsigned char dig[HMAC_MAX_OUTPUT_SIZE];
+    unsigned int i;
+
+    /* if no data has been entered perform a null data phase        */
+    if(cx->klen != HMAC_IN_DATA)
+        hmac_sha_data((const unsigned char*)0, 0, cx);
+
+    cx->f_end(dig, cx->sha_ctx);        /* complete the inner hash       */
+
+    /* set outer key value using opad and removing ipad */
+    for(i = 0; i < (cx->input_len >> 2); ++i)
+        ((uint32_t*)cx->key)[i] ^= 0x36363636 ^ 0x5c5c5c5c;
+
+    /* perform the outer hash operation */
+    cx->f_begin(cx->sha_ctx);
+    cx->f_hash(cx->key, cx->input_len, cx->sha_ctx);
+    cx->f_hash(dig, cx->output_len, cx->sha_ctx);
+    cx->f_end(dig, cx->sha_ctx);
+
+    /* output the hash value            */
+    for(i = 0; i < mac_len; ++i)
+        mac[i] = dig[i];
+}
+
+/* 'do it all in one go' subroutine     */
+void hmac_sha(enum hmac_hash hash, const unsigned char key[], unsigned long key_len,
+          const unsigned char data[], unsigned long data_len,
+          unsigned char mac[], unsigned long mac_len)
+{   hmac_ctx    cx[1];
+
+    hmac_sha_begin(hash, cx);
+    hmac_sha_key(key, key_len, cx);
+    hmac_sha_data(data, data_len, cx);
+    hmac_sha_end(mac, mac_len, cx);
+}
+
+#if defined(__cplusplus)
+}
+#endif