/*
 * Copyright (c) 2020-2021, Arm Limited and Contributors. All rights reserved.
 * SPDX-License-Identifier: BSD-3-Clause
 */
syntax = "proto3";

package ts_crypto;

/* Key types */
enum KeyType {
  KEY_TYPE_NONE                   = 0x0000;
  KEY_TYPE_RAW_DATA               = 0x1001;
  KEY_TYPE_HMAC                   = 0x1100;
  KEY_TYPE_DERIVE                 = 0x1200;
  KEY_TYPE_AES                    = 0x2400;
  KEY_TYPE_DES                    = 0x2301;
  KEY_TYPE_CAMELLIA               = 0x2403;
  KEY_TYPE_CHACHA20               = 0x2004;
  KEY_TYPE_RSA_PUBLIC_KEY         = 0x4001;
  KEY_TYPE_RSA_KEY_PAIR           = 0x7001;
}

/* ECC curves for use with ECC Key types */
enum EccCurve {
  ECC_FAMILY_NONE                 = 0x00;
  ECC_FAMILY_SECP_K1              = 0x17;
  ECC_FAMILY_SECP_R1              = 0x12;
  ECC_FAMILY_SECP_R2              = 0x1b;
  ECC_FAMILY_SECT_K1              = 0x27;
  ECC_FAMILY_SECT_R1              = 0x22;
  ECC_FAMILY_SECT_R2              = 0x2b;
  ECC_FAMILY_BRAINPOOL_P_R1       = 0x30;
  ECC_FAMILY_MONTGOMERY           = 0x41;
}

/* Diffie-Hellman groups for use with DH key types */
enum DhGroup {
  DH_FAMILY_NONE                  = 0x00;
  DH_FAMILY_RFC7919               = 0x03;
}

/* Crypto algorithms */
enum Alg {
  ALG_NONE                        = 0x00000000;
  ALG_MD5                         = 0x02000003;
  ALG_RIPEMD160                   = 0x02000004;
  ALG_SHA_1                       = 0x02000005;
  ALG_SHA_224                     = 0x02000008;
  ALG_SHA_256                     = 0x02000009;
  ALG_SHA_384                     = 0x0200000a;
  ALG_SHA_512                     = 0x0200000b;
  ALG_SHA_512_224                 = 0x0200000c;
  ALG_SHA_512_256                 = 0x0200000d;
  ALG_SHA3_224                    = 0x02000010;
  ALG_SHA3_256                    = 0x02000011;
  ALG_SHA3_384                    = 0x02000012;
  ALG_SHA3_512                    = 0x02000013;
  ALG_CBC_MAC                     = 0x03c00100;
  ALG_CMAC                        = 0x03c00200;
  ALG_STREAM_CIPHER               = 0x04800100;
  ALG_CTR                         = 0x04c01000;
  ALG_CFB                         = 0x04c01100;
  ALG_OFB                         = 0x04c01200;
  ALG_XTS                         = 0x0440ff00;
  ALG_CBC_NO_PADDING              = 0x04404000;
  ALG_CBC_PKCS7                   = 0x04404100;
  ALG_CCM                         = 0x05500100;
  ALG_GCM                         = 0x05500200;
  ALG_CHACHA20_POLY1305           = 0x05100500;
  ALG_RSA_PKCS1V15_CRYPT          = 0x07000200;
  ALG_FFDH                        = 0x09010000;
  ALG_ECDH                        = 0x09020000;
}

/* Key lifetime */
enum KeyLifetime {
  KEY_LIFETIME_VOLATILE           = 0x00000000;
  KEY_LIFETIME_PERSISTENT         = 0x00000001;
}

/* Key usage constraints */
enum KeyUsage {
  KEY_USAGE_NONE                  = 0x00000000;
  KEY_USAGE_EXPORT                = 0x00000001;
  KEY_USAGE_COPY                  = 0x00000002;
  KEY_USAGE_ENCRYPT               = 0x00000100;
  KEY_USAGE_DECRYPT               = 0x00000200;
  KEY_USAGE_SIGN_HASH             = 0x00001000;
  KEY_USAGE_VERIFY_HASH           = 0x00002000;
  KEY_USAGE_DERIVE                = 0x00004000;
}

/* Key policy to define what key can be used for */
message KeyPolicy {
  uint32 usage = 1;
  uint32 alg = 2;
}

/* Key attributes object */
message KeyAttributes {
  uint32 type = 1;
  uint32 key_bits = 2;
  uint32 lifetime = 3;
  uint32 id = 4;
  KeyPolicy policy = 5;
}