Fixed some typos, courtesy of codespell

src/libstrongswan/crypto/nonce_gen.h

@@ -35,7 +35,7 @@ struct nonce_gen_t {
 	 *
 	 * @param size		size of nonce in bytes
 	 * @param buffer	pointer where the generated nonce will be written
-	 * @return			TRUE if nonce allocation was succesful, FALSE otherwise
+	 * @return			TRUE if nonce allocation was successful, FALSE otherwise
 	 */
 	bool (*get_nonce)(nonce_gen_t *this, size_t size,
 					  u_int8_t *buffer) __attribute__((warn_unused_result));
@@ -45,7 +45,7 @@ struct nonce_gen_t {
 	 *
 	 * @param size		size of nonce in bytes
 	 * @param chunk		chunk which will hold the generated nonce
-	 * @return			TRUE if nonce allocation was succesful, FALSE otherwise
+	 * @return			TRUE if nonce allocation was successful, FALSE otherwise
 	 */
 	bool (*allocate_nonce)(nonce_gen_t *this, size_t size,
 						   chunk_t *chunk) __attribute__((warn_unused_result));

src/libstrongswan/plugins/gmp/gmp_rsa_private_key.c

@@ -211,7 +211,7 @@ static status_t compute_prime(size_t prime_size, bool safe, mpz_t *p, mpz_t *q)
 
 	rng->destroy(rng);
 
-	/* additonally return p-1 */
+	/* additionally return p-1 */
 	mpz_sub_ui(*q, *p, 1);
 
 	return SUCCESS;

src/libstrongswan/plugins/pkcs7/pkcs7_generic.c

@@ -116,7 +116,7 @@ pkcs7_t *pkcs7_generic_load(container_type_t type, va_list args)
 	{
 		if (blob.len >= 2 &&
 			blob.ptr[0] == ASN1_SEQUENCE && blob.ptr[1] == 0x80)
-		{	/* looks like infinite lenght BER encoding, but we can't handle it.
+		{	/* looks like infinite length BER encoding, but we can't handle it.
 			 * ignore silently, our openssl backend can handle it */
 			return NULL;
 		}