Fix typos

zcash_primitives/src/sapling.rs

@@ -562,7 +562,7 @@ pub mod testing {
         ) -> Note {
             Note {
                 value: value.into(),
-                g_d: addr.g_d().unwrap(), // this unwrap is safe because arb_payment_address always generates an address witha valid g_d
+                g_d: addr.g_d().unwrap(), // this unwrap is safe because arb_payment_address always generates an address with a valid g_d
                 pk_d: *addr.pk_d(),
                 rseed
             }

zcash_primitives/src/sapling/note_encryption.rs

@@ -159,7 +159,7 @@ impl<P: consensus::Parameters> Domain for SaplingDomain<P> {
     ) -> Self::EphemeralPublicKey {
         // epk is an element of jubjub's prime-order subgroup,
         // but Self::EphemeralPublicKey is a full group element
-        // for efficency of encryption. The conversion here is fine
+        // for efficiency of encryption. The conversion here is fine
         // because the output of this function is only used for
         // encoding and the byte encoding is unaffected by the conversion.
         (note.g_d * esk).into()

zcash_primitives/src/transaction/sighash.rs

@@ -57,7 +57,7 @@ impl AsRef<[u8; 32]> for SignatureHash {
     }
 }
 
-/// Addtional context that is needed to compute signature hashes
+/// Additional context that is needed to compute signature hashes
 /// for transactions that include transparent inputs or outputs.
 pub trait TransparentAuthorizingContext: transparent::Authorization {
     /// Returns the list of all transparent input amounts, provided

zcash_proofs/src/lib.rs

@@ -140,7 +140,7 @@ pub fn load_parameters(
 
 /// Parse Bls12 keys from bytes as serialized by [`Parameters::write`].
 ///
-/// This function will panic if it encounters unparseable data.
+/// This function will panic if it encounters unparsable data.
 pub fn parse_parameters<R: io::Read>(
     spend_fs: R,
     output_fs: R,