crypto: kpp, (ec)dh - fix typos

While here, add missing argument description (ndigits).
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

CVE-2018-5383

(cherry picked from commit c0ca1215)
Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com>
Acked-by: Stefan Bader <stefan.bader@canonical.com>
Acked-by: Connor Kuehl <connor.kuehl@canonical.com>
Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>

crypto/dh.c

@@ -4,9 +4,9 @@
  * Authors: Salvatore Benedetto <salvatore.benedetto@intel.com>
  *
  * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
+ * modify it under the terms of the GNU General Public License
  * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
+ * 2 of the License, or (at your option) any later version.
  */
 
 #include <linux/module.h>

crypto/dh_helper.c

@@ -3,9 +3,9 @@
  * Authors: Salvatore Benedetto <salvatore.benedetto@intel.com>
  *
  * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
+ * modify it under the terms of the GNU General Public License
  * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
+ * 2 of the License, or (at your option) any later version.
  */
 #include <linux/kernel.h>
 #include <linux/export.h>

crypto/ecc.h

@@ -34,9 +34,9 @@
  * ecc_is_key_valid() - Validate a given ECDH private key
  *
  * @curve_id:		id representing the curve to use
- * @ndigits:		curve number of digits
+ * @ndigits:		curve's number of digits
  * @private_key:	private key to be used for the given curve
- * @private_key_len:	private key len
+ * @private_key_len:	private key length
  *
  * Returns 0 if the key is acceptable, a negative value otherwise
  */
@@ -47,9 +47,10 @@ int ecc_is_key_valid(unsigned int curve_id, unsigned int ndigits,
  * ecdh_make_pub_key() - Compute an ECC public key
  *
  * @curve_id:		id representing the curve to use
+ * @ndigits:		curve's number of digits
  * @private_key:	pregenerated private key for the given curve
  * @private_key_len:	length of private_key
- * @public_key:		buffer for storing the public key generated
+ * @public_key:		buffer for storing the generated public key
  * @public_key_len:	length of the public_key buffer
  *
  * Returns 0 if the public key was generated successfully, a negative value
@@ -63,6 +64,7 @@ int ecdh_make_pub_key(const unsigned int curve_id, unsigned int ndigits,
  * crypto_ecdh_shared_secret() - Compute a shared secret
  *
  * @curve_id:		id representing the curve to use
+ * @ndigits:		curve's number of digits
  * @private_key:	private key of part A
  * @private_key_len:	length of private_key
  * @public_key:		public key of counterpart B

crypto/ecdh.c

@@ -4,9 +4,9 @@
  * Authors: Salvator Benedetto <salvatore.benedetto@intel.com>
  *
  * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
+ * modify it under the terms of the GNU General Public License
  * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
+ * 2 of the License, or (at your option) any later version.
  */
 
 #include <linux/module.h>

crypto/ecdh_helper.c

@@ -3,9 +3,9 @@
  * Authors: Salvatore Benedetto <salvatore.benedetto@intel.com>
  *
  * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
+ * modify it under the terms of the GNU General Public License
  * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
+ * 2 of the License, or (at your option) any later version.
  */
 #include <linux/kernel.h>
 #include <linux/export.h>

include/crypto/dh.h

@@ -73,9 +73,9 @@ int crypto_dh_encode_key(char *buf, unsigned int len, const struct dh *params);
 /**
  * crypto_dh_decode_key() - decode a private key
  * @buf:	Buffer holding a packet key that should be decoded
- * @len:	Lenth of the packet private key buffer
+ * @len:	Length of the packet private key buffer
  * @params:	Buffer allocated by the caller that is filled with the
- *		unpacket DH private key.
+ *		unpacked DH private key.
  *
  * The unpacking obtains the private key by pointing @p to the correct location
  * in @buf. Thus, both pointers refer to the same memory.

include/crypto/ecdh.h

@@ -74,9 +74,9 @@ int crypto_ecdh_encode_key(char *buf, unsigned int len, const struct ecdh *p);
 /**
  * crypto_ecdh_decode_key() - decode a private key
  * @buf:	Buffer holding a packet key that should be decoded
- * @len:	Lenth of the packet private key buffer
+ * @len:	Length of the packet private key buffer
  * @p:		Buffer allocated by the caller that is filled with the
- *		unpacket ECDH private key.
+ *		unpacked ECDH private key.
  *
  * The unpacking obtains the private key by pointing @p to the correct location
  * in @buf. Thus, both pointers refer to the same memory.

include/crypto/kpp.h

@@ -53,7 +53,7 @@ struct crypto_kpp {
  *
  * @set_secret:		Function invokes the protocol specific function to
  *			store the secret private key along with parameters.
- *			The implementation knows how to decode thie buffer
+ *			The implementation knows how to decode the buffer
  * @generate_public_key: Function generate the public key to be sent to the
  *			counterpart. In case of error, where output is not big
  *			enough req->dst_len will be updated to the size
@@ -102,7 +102,7 @@ struct kpp_alg {
  * @mask: specifies the mask for the algorithm
  *
  * Allocate a handle for kpp algorithm. The returned struct crypto_kpp
- * is requeried for any following API invocation
+ * is required for any following API invocation
  *
  * Return: allocated handle in case of success; IS_ERR() is true in case of
  *	   an error, PTR_ERR() returns the error code.