Import code from previous AssetBuilder version

thirdparty/libtomcrypt/pk/pkcs1/pkcs_1_os2ip.c

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+/* LibTomCrypt, modular cryptographic library -- Tom St Denis
+ *
+ * LibTomCrypt is a library that provides various cryptographic
+ * algorithms in a highly modular and flexible manner.
+ *
+ * The library is free for all purposes without any express
+ * guarantee it works.
+ */
+#include "tomcrypt.h"
+
+/**
+  @file pkcs_1_os2ip.c
+  Octet to Integer OS2IP, Tom St Denis
+*/
+#ifdef LTC_PKCS_1
+
+/**
+  Read a binary string into an mp_int
+  @param n          [out] The mp_int destination
+  @param in         The binary string to read
+  @param inlen      The length of the binary string
+  @return CRYPT_OK if successful
+*/
+int pkcs_1_os2ip(void *n, unsigned char *in, unsigned long inlen)
+{
+   return mp_read_unsigned_bin(n, in, inlen);
+}
+
+#endif /* LTC_PKCS_1 */
+
+
+/* ref:         HEAD -> master, tag: v1.18.2 */
+/* git commit:  7e7eb695d581782f04b24dc444cbfde86af59853 */
+/* commit time: 2018-07-01 22:49:01 +0200 */