X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=libtomcrypt%2Fsrc%2Fmac%2Fpoly1305%2Fpoly1305_memory.c;fp=libtomcrypt%2Fsrc%2Fmac%2Fpoly1305%2Fpoly1305_memory.c;h=a827f8d38623627e8f7202e1bed9eb2a48954d8f;hb=66bc25938679f1d6a1d1200f329093d82a5e99b4;hp=0000000000000000000000000000000000000000;hpb=a52ee0733f420ca20224049260d6fc5cf7d8f621;p=zpackage

diff --git a/libtomcrypt/src/mac/poly1305/poly1305_memory.c b/libtomcrypt/src/mac/poly1305/poly1305_memory.c
new file mode 100644
index 0000000..a827f8d
--- /dev/null
+++ b/libtomcrypt/src/mac/poly1305/poly1305_memory.c
@@ -0,0 +1,53 @@
+/* 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.
+ */
+
+/* The implementation is based on:
+ * Public Domain poly1305 from Andrew Moon
+ * https://github.com/floodyberry/poly1305-donna
+ */
+
+#include "tomcrypt.h"
+
+#ifdef LTC_POLY1305
+
+/**
+   POLY1305 a block of memory to produce the authentication tag
+   @param key       The secret key
+   @param keylen    The length of the secret key (octets)
+   @param in        The data to POLY1305
+   @param inlen     The length of the data to POLY1305 (octets)
+   @param mac       [out] Destination of the authentication tag
+   @param maclen    [in/out] Max size and resulting size of authentication tag
+   @return CRYPT_OK if successful
+*/
+int poly1305_memory(const unsigned char *key, unsigned long keylen, const unsigned char *in, unsigned long inlen, unsigned char *mac, unsigned long *maclen)
+{
+   poly1305_state st;
+   int err;
+
+   LTC_ARGCHK(key    != NULL);
+   LTC_ARGCHK(in     != NULL);
+   LTC_ARGCHK(mac    != NULL);
+   LTC_ARGCHK(maclen != NULL);
+
+   if ((err = poly1305_init(&st, key, keylen))  != CRYPT_OK) { goto LBL_ERR; }
+   if ((err = poly1305_process(&st, in, inlen)) != CRYPT_OK) { goto LBL_ERR; }
+   err = poly1305_done(&st, mac, maclen);
+LBL_ERR:
+#ifdef LTC_CLEAN_STACK
+   zeromem(&st, sizeof(poly1305_state));
+#endif
+   return err;
+}
+
+#endif
+
+/* ref:         $Format:%D$ */
+/* git commit:  $Format:%H$ */
+/* commit time: $Format:%ai$ */