NTRU: add explicit cast for MS compiler

crypto_kem/ntruhps2048509/META.yml

@@ -23,9 +23,9 @@ auxiliary-submitters:
   - Zhenfei Zhang
 implementations:
     - name: clean
-      version: https://github.com/jschanck/ntru/tree/4699d70a reference implementation
+      version: https://github.com/jschanck/ntru/tree/00f73a7f reference implementation
     - name: avx2
-      version: https://github.com/jschanck/ntru/tree/4699d70a avx2 implementation
+      version: https://github.com/jschanck/ntru/tree/00f73a7f avx2 implementation
       supported_platforms:
           - architecture: x86_64
             operating_systems:

crypto_kem/ntruhps2048509/clean/poly_s3_inv.c

@@ -7,7 +7,7 @@ static inline uint8_t mod3(uint8_t a) { /* a between 0 and 9 */
     a = (a >> 2) + (a & 3); /* between 0 and 4 */
     t = a - 3;
     c = t >> 5;
-    return t ^ (c & (a ^ t));
+    return (uint8_t) (t ^ (c & (a ^ t)));
 }
 
 /* return -1 if x<0 and y<0; otherwise return 0 */

crypto_kem/ntruhps2048677/META.yml

@@ -23,9 +23,9 @@ auxiliary-submitters:
   - Zhenfei Zhang
 implementations:
     - name: clean
-      version: https://github.com/jschanck/ntru/tree/4699d70a reference implementation
+      version: https://github.com/jschanck/ntru/tree/00f73a7f reference implementation
     - name: avx2
-      version: https://github.com/jschanck/ntru/tree/4699d70a avx2 implementation
+      version: https://github.com/jschanck/ntru/tree/00f73a7f avx2 implementation
       supported_platforms:
           - architecture: x86_64
             operating_systems:

crypto_kem/ntruhps2048677/clean/poly_s3_inv.c

@@ -7,7 +7,7 @@ static inline uint8_t mod3(uint8_t a) { /* a between 0 and 9 */
     a = (a >> 2) + (a & 3); /* between 0 and 4 */
     t = a - 3;
     c = t >> 5;
-    return t ^ (c & (a ^ t));
+    return (uint8_t) (t ^ (c & (a ^ t)));
 }
 
 /* return -1 if x<0 and y<0; otherwise return 0 */

crypto_kem/ntruhps4096821/META.yml

@@ -23,9 +23,9 @@ auxiliary-submitters:
   - Zhenfei Zhang
 implementations:
     - name: clean
-      version: https://github.com/jschanck/ntru/tree/4699d70a reference implementation
+      version: https://github.com/jschanck/ntru/tree/00f73a7f reference implementation
     - name: avx2
-      version: https://github.com/jschanck/ntru/tree/4699d70a avx2 implementation
+      version: https://github.com/jschanck/ntru/tree/00f73a7f avx2 implementation
       supported_platforms:
           - architecture: x86_64
             operating_systems:

crypto_kem/ntruhps4096821/clean/poly_s3_inv.c

@@ -7,7 +7,7 @@ static inline uint8_t mod3(uint8_t a) { /* a between 0 and 9 */
     a = (a >> 2) + (a & 3); /* between 0 and 4 */
     t = a - 3;
     c = t >> 5;
-    return t ^ (c & (a ^ t));
+    return (uint8_t) (t ^ (c & (a ^ t)));
 }
 
 /* return -1 if x<0 and y<0; otherwise return 0 */

crypto_kem/ntruhrss701/META.yml

@@ -23,9 +23,9 @@ auxiliary-submitters:
   - Zhenfei Zhang
 implementations:
     - name: clean
-      version: https://github.com/jschanck/ntru/tree/4699d70a reference implementation
+      version: https://github.com/jschanck/ntru/tree/00f73a7f reference implementation
     - name: avx2
-      version: https://github.com/jschanck/ntru/tree/4699d70a avx2 implementation
+      version: https://github.com/jschanck/ntru/tree/00f73a7f avx2 implementation
       supported_platforms:
           - architecture: x86_64
             operating_systems:

crypto_kem/ntruhrss701/clean/poly_s3_inv.c

@@ -7,7 +7,7 @@ static inline uint8_t mod3(uint8_t a) { /* a between 0 and 9 */
     a = (a >> 2) + (a & 3); /* between 0 and 4 */
     t = a - 3;
     c = t >> 5;
-    return t ^ (c & (a ^ t));
+    return (uint8_t) (t ^ (c & (a ^ t)));
 }
 
 /* return -1 if x<0 and y<0; otherwise return 0 */