diff options
Diffstat (limited to 'crypto/ecc.h')
| -rw-r--r-- | crypto/ecc.h | 41 |
1 files changed, 25 insertions, 16 deletions
diff --git a/crypto/ecc.h b/crypto/ecc.h index 663d598c7406..e4fd4492c765 100644 --- a/crypto/ecc.h +++ b/crypto/ecc.h @@ -34,41 +34,51 @@ * 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 */ int ecc_is_key_valid(unsigned int curve_id, unsigned int ndigits, - const u8 *private_key, unsigned int private_key_len); + const u64 *private_key, unsigned int private_key_len); + +/** + * ecc_gen_privkey() - Generates an ECC private key. + * The private key is a random integer in the range 0 < random < n, where n is a + * prime that is the order of the cyclic subgroup generated by the distinguished + * point G. + * @curve_id: id representing the curve to use + * @ndigits: curve number of digits + * @private_key: buffer for storing the generated private key + * + * Returns 0 if the private key was generated successfully, a negative value + * if an error occurred. + */ +int ecc_gen_privkey(unsigned int curve_id, unsigned int ndigits, u64 *privkey); /** - * ecdh_make_pub_key() - Compute an ECC public key + * ecc_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_len: length of the public_key buffer + * @public_key: buffer for storing the generated public key * * Returns 0 if the public key was generated successfully, a negative value * if an error occurred. */ -int ecdh_make_pub_key(const unsigned int curve_id, unsigned int ndigits, - const u8 *private_key, unsigned int private_key_len, - u8 *public_key, unsigned int public_key_len); +int ecc_make_pub_key(const unsigned int curve_id, unsigned int ndigits, + const u64 *private_key, u64 *public_key); /** * 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 - * @public_key_len: length of public_key * @secret: buffer for storing the calculated shared secret - * @secret_len: length of the secret buffer * * Note: It is recommended that you hash the result of crypto_ecdh_shared_secret * before using it for symmetric encryption or HMAC. @@ -77,7 +87,6 @@ int ecdh_make_pub_key(const unsigned int curve_id, unsigned int ndigits, * if an error occurred. */ int crypto_ecdh_shared_secret(unsigned int curve_id, unsigned int ndigits, - const u8 *private_key, unsigned int private_key_len, - const u8 *public_key, unsigned int public_key_len, - u8 *secret, unsigned int secret_len); + const u64 *private_key, const u64 *public_key, + u64 *secret); #endif |