/* Do not modify this file. Changes will be overwritten.                      */

/* Generated automatically by the ASN.1 to Wireshark dissector compiler       */

/* packet-h235.c                                                              */

/* asn2wrs.py -q -L -p h235 -c ./h235.cnf -s ./packet-h235-template -D . -O ../.. H235-SECURITY-MESSAGES.asn H235-SRTP.asn */

/* packet-h235.c

 * Routines for H.235 packet dissection

 * 2004  Tomas Kukosa

 *

 * Wireshark - Network traffic analyzer

 * By Gerald Combs <gerald@wireshark.org>

 * Copyright 1998 Gerald Combs

 *

 * SPDX-License-Identifier: GPL-2.0-or-later

 */

#include "config.h"

#include <epan/packet.h>

#include <epan/oids.h>

#include <epan/asn1.h>

#include <wsutil/array.h>

#include "packet-per.h"

#include "packet-h235.h"

#include "packet-h225.h"

#define OID_MIKEY         "0.0.8.235.0.3.76"

#define OID_MIKEY_PS      "0.0.8.235.0.3.72"

#define OID_MIKEY_DHHMAC  "0.0.8.235.0.3.73"

#define OID_MIKEY_PK_SIGN "0.0.8.235.0.3.74"

#define OID_MIKEY_DH_SIGN "0.0.8.235.0.3.75"

#define OID_TG            "0.0.8.235.0.3.70"

#define OID_SG            "0.0.8.235.0.3.71"

void proto_register_h235(void);

void proto_reg_handoff_h235(void);

/* Initialize the protocol and registered fields */

static int proto_h235;

static int hf_h235_SrtpCryptoCapability_PDU;      /* SrtpCryptoCapability */

static int hf_h235_nonStandardIdentifier;         /* OBJECT_IDENTIFIER */

static int hf_h235_data;                          /* OCTET_STRING */

static int hf_h235_halfkey;                       /* BIT_STRING_SIZE_0_2048 */

static int hf_h235_modSize;                       /* BIT_STRING_SIZE_0_2048 */

static int hf_h235_generator;                     /* BIT_STRING_SIZE_0_2048 */

static int hf_h235_x;                             /* BIT_STRING_SIZE_0_511 */

static int hf_h235_y;                             /* BIT_STRING_SIZE_0_511 */

static int hf_h235_eckasdhp;                      /* T_eckasdhp */

static int hf_h235_public_key;                    /* ECpoint */

static int hf_h235_modulus;                       /* BIT_STRING_SIZE_0_511 */

static int hf_h235_base;                          /* ECpoint */

static int hf_h235_weierstrassA;                  /* BIT_STRING_SIZE_0_511 */

static int hf_h235_weierstrassB;                  /* BIT_STRING_SIZE_0_511 */

static int hf_h235_eckasdh2;                      /* T_eckasdh2 */

static int hf_h235_fieldSize;                     /* BIT_STRING_SIZE_0_511 */

static int hf_h235_type;                          /* OBJECT_IDENTIFIER */

static int hf_h235_certificatedata;               /* OCTET_STRING */

static int hf_h235_default;                       /* NULL */

static int hf_h235_radius;                        /* NULL */

static int hf_h235_dhExch;                        /* NULL */

static int hf_h235_pwdSymEnc;                     /* NULL */

static int hf_h235_pwdHash;                       /* NULL */

static int hf_h235_certSign;                      /* NULL */

static int hf_h235_ipsec;                         /* NULL */

static int hf_h235_tls;                           /* NULL */

static int hf_h235_nonStandard;                   /* NonStandardParameter */

static int hf_h235_authenticationBES;             /* AuthenticationBES */

static int hf_h235_keyExch;                       /* OBJECT_IDENTIFIER */

static int hf_h235_tokenOID;                      /* OBJECT_IDENTIFIER */

static int hf_h235_timeStamp;                     /* TimeStamp */

static int hf_h235_password;                      /* Password */

static int hf_h235_dhkey;                         /* DHset */

static int hf_h235_challenge;                     /* ChallengeString */

static int hf_h235_random;                        /* RandomVal */

static int hf_h235_certificate;                   /* TypedCertificate */

static int hf_h235_generalID;                     /* Identifier */

static int hf_h235_eckasdhkey;                    /* ECKASDH */

static int hf_h235_sendersID;                     /* Identifier */

static int hf_h235_h235Key;                       /* H235Key */

static int hf_h235_profileInfo;                   /* SEQUENCE_OF_ProfileElement */

static int hf_h235_profileInfo_item;              /* ProfileElement */

static int hf_h235_elementID;                     /* INTEGER_0_255 */

static int hf_h235_paramS;                        /* Params */

static int hf_h235_element;                       /* Element */

static int hf_h235_octets;                        /* OCTET_STRING */

static int hf_h235_integer;                       /* INTEGER */

static int hf_h235_bits;                          /* BIT_STRING */

static int hf_h235_name;                          /* BMPString */

static int hf_h235_flag;                          /* BOOLEAN */

static int hf_h235_toBeSigned;                    /* ToBeSigned */

static int hf_h235_algorithmOID;                  /* OBJECT_IDENTIFIER */

static int hf_h235_signaturedata;                 /* BIT_STRING */

static int hf_h235_encryptedData;                 /* OCTET_STRING */

static int hf_h235_hash;                          /* BIT_STRING */

static int hf_h235_ranInt;                        /* INTEGER */

static int hf_h235_iv8;                           /* IV8 */

static int hf_h235_iv16;                          /* IV16 */

static int hf_h235_iv;                            /* OCTET_STRING */

static int hf_h235_clearSalt;                     /* OCTET_STRING */

static int hf_h235_cryptoEncryptedToken;          /* T_cryptoEncryptedToken */

static int hf_h235_encryptedToken;                /* ENCRYPTED */

static int hf_h235_cryptoSignedToken;             /* T_cryptoSignedToken */

static int hf_h235_signedToken;                   /* SIGNED */

static int hf_h235_cryptoHashedToken;             /* T_cryptoHashedToken */

static int hf_h235_hashedVals;                    /* ClearToken */

static int hf_h235_hashedToken;                   /* HASHED */

static int hf_h235_cryptoPwdEncr;                 /* ENCRYPTED */

static int hf_h235_secureChannel;                 /* KeyMaterial */

static int hf_h235_sharedSecret;                  /* ENCRYPTED */

static int hf_h235_certProtectedKey;              /* SIGNED */

static int hf_h235_secureSharedSecret;            /* V3KeySyncMaterial */

static int hf_h235_encryptedSessionKey;           /* OCTET_STRING */

static int hf_h235_encryptedSaltingKey;           /* OCTET_STRING */

static int hf_h235_clearSaltingKey;               /* OCTET_STRING */

static int hf_h235_paramSsalt;                    /* Params */

static int hf_h235_keyDerivationOID;              /* OBJECT_IDENTIFIER */

static int hf_h235_genericKeyMaterial;            /* OCTET_STRING */

static int hf_h235_SrtpCryptoCapability_item;     /* SrtpCryptoInfo */

static int hf_h235_cryptoSuite;                   /* OBJECT_IDENTIFIER */

static int hf_h235_sessionParams;                 /* SrtpSessionParameters */

static int hf_h235_allowMKI;                      /* BOOLEAN */

static int hf_h235_SrtpKeys_item;                 /* SrtpKeyParameters */

static int hf_h235_masterKey;                     /* OCTET_STRING */

static int hf_h235_masterSalt;                    /* OCTET_STRING */

static int hf_h235_lifetime;                      /* T_lifetime */

static int hf_h235_powerOfTwo;                    /* INTEGER */

static int hf_h235_specific;                      /* INTEGER */

static int hf_h235_mki;                           /* T_mki */

static int hf_h235_length;                        /* INTEGER_1_128 */

static int hf_h235_value;                         /* OCTET_STRING */

static int hf_h235_kdr;                           /* INTEGER_0_24 */

static int hf_h235_unencryptedSrtp;               /* BOOLEAN */

static int hf_h235_unencryptedSrtcp;              /* BOOLEAN */

static int hf_h235_unauthenticatedSrtp;           /* BOOLEAN */

static int hf_h235_fecOrder;                      /* FecOrder */

static int hf_h235_windowSizeHint;                /* INTEGER_64_65535 */

static int hf_h235_newParameter;                  /* SEQUENCE_OF_GenericData */

static int hf_h235_newParameter_item;             /* GenericData */

static int hf_h235_fecBeforeSrtp;                 /* NULL */

static int hf_h235_fecAfterSrtp;                  /* NULL */

/* Initialize the subtree pointers */

static int ett_h235_NonStandardParameter;

static int ett_h235_DHset;

static int ett_h235_ECpoint;

static int ett_h235_ECKASDH;

static int ett_h235_T_eckasdhp;

static int ett_h235_T_eckasdh2;

static int ett_h235_TypedCertificate;

static int ett_h235_AuthenticationBES;

static int ett_h235_AuthenticationMechanism;

static int ett_h235_ClearToken;

static int ett_h235_SEQUENCE_OF_ProfileElement;

static int ett_h235_ProfileElement;

static int ett_h235_Element;

static int ett_h235_SIGNED;

static int ett_h235_ENCRYPTED;

static int ett_h235_HASHED;

static int ett_h235_Params;

static int ett_h235_CryptoToken;

static int ett_h235_T_cryptoEncryptedToken;

static int ett_h235_T_cryptoSignedToken;

static int ett_h235_T_cryptoHashedToken;

static int ett_h235_H235Key;

static int ett_h235_V3KeySyncMaterial;

static int ett_h235_SrtpCryptoCapability;

static int ett_h235_SrtpCryptoInfo;

static int ett_h235_SrtpKeys;

static int ett_h235_SrtpKeyParameters;

static int ett_h235_T_lifetime;

static int ett_h235_T_mki;

static int ett_h235_SrtpSessionParameters;

static int ett_h235_SEQUENCE_OF_GenericData;

static int ett_h235_FecOrder;

static unsigned

dissect_h235_ToBeSigned(tvbuff_t *tvb, unsigned offset, asn1_ctx_t *actx, proto_tree *tree, int hf_index _U_) {

  dissect_per_not_decoded_yet(tree, actx->pinfo, tvb, "ToBeSigned");

  return offset;

}

static unsigned

dissect_h235_ChallengeString(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_octet_string(tvb, offset, actx, tree, hf_index,

                                       8, 128, false, NULL);

  return offset;

}

unsigned

dissect_h235_TimeStamp(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_constrained_integer(tvb, offset, actx, tree, hf_index,

                                                            1U, 4294967295U, NULL, false);

  return offset;

}

static unsigned

dissect_h235_RandomVal(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_integer(tvb, offset, actx, tree, hf_index, NULL);

  return offset;

}

static unsigned

dissect_h235_Password(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_BMPString(tvb, offset, actx, tree, hf_index,

                                          1, 128, false);

  return offset;

}

static unsigned

dissect_h235_Identifier(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_BMPString(tvb, offset, actx, tree, hf_index,

                                          1, 128, false);

  return offset;

}

static unsigned

dissect_h235_KeyMaterial(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_bit_string(tvb, offset, actx, tree, hf_index,

                                     1, 2048, false, NULL, 0, NULL, NULL);

  return offset;

}

static unsigned

dissect_h235_OBJECT_IDENTIFIER(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_object_identifier(tvb, offset, actx, tree, hf_index, NULL);

  return offset;

}

static unsigned

dissect_h235_OCTET_STRING(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_octet_string(tvb, offset, actx, tree, hf_index,

                                       NO_BOUND, NO_BOUND, false, NULL);

  return offset;

}

static const per_sequence_t NonStandardParameter_sequence[] = {

  { &hf_h235_nonStandardIdentifier, ASN1_NO_EXTENSIONS     , ASN1_NOT_OPTIONAL, dissect_h235_OBJECT_IDENTIFIER },

  { &hf_h235_data           , ASN1_NO_EXTENSIONS     , ASN1_NOT_OPTIONAL, dissect_h235_OCTET_STRING },

  { NULL, 0, 0, NULL }

};

static unsigned

dissect_h235_NonStandardParameter(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_sequence(tvb, offset, actx, tree, hf_index,

                                   ett_h235_NonStandardParameter, NonStandardParameter_sequence);

  return offset;

}

static unsigned

dissect_h235_BIT_STRING_SIZE_0_2048(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_bit_string(tvb, offset, actx, tree, hf_index,

                                     0, 2048, false, NULL, 0, NULL, NULL);

  return offset;

}

static const per_sequence_t DHset_sequence[] = {

  { &hf_h235_halfkey        , ASN1_EXTENSION_ROOT    , ASN1_NOT_OPTIONAL, dissect_h235_BIT_STRING_SIZE_0_2048 },

  { &hf_h235_modSize        , ASN1_EXTENSION_ROOT    , ASN1_NOT_OPTIONAL, dissect_h235_BIT_STRING_SIZE_0_2048 },

  { &hf_h235_generator      , ASN1_EXTENSION_ROOT    , ASN1_NOT_OPTIONAL, dissect_h235_BIT_STRING_SIZE_0_2048 },

  { NULL, 0, 0, NULL }

};

static unsigned

dissect_h235_DHset(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_sequence(tvb, offset, actx, tree, hf_index,

                                   ett_h235_DHset, DHset_sequence);

  return offset;

}

static unsigned

dissect_h235_BIT_STRING_SIZE_0_511(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_bit_string(tvb, offset, actx, tree, hf_index,

                                     0, 511, false, NULL, 0, NULL, NULL);

  return offset;

}

static const per_sequence_t ECpoint_sequence[] = {

  { &hf_h235_x              , ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_BIT_STRING_SIZE_0_511 },

  { &hf_h235_y              , ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_BIT_STRING_SIZE_0_511 },

  { NULL, 0, 0, NULL }

};

static unsigned

dissect_h235_ECpoint(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_sequence(tvb, offset, actx, tree, hf_index,

                                   ett_h235_ECpoint, ECpoint_sequence);

  return offset;

}

static const per_sequence_t T_eckasdhp_sequence[] = {

  { &hf_h235_public_key     , ASN1_NO_EXTENSIONS     , ASN1_NOT_OPTIONAL, dissect_h235_ECpoint },

  { &hf_h235_modulus        , ASN1_NO_EXTENSIONS     , ASN1_NOT_OPTIONAL, dissect_h235_BIT_STRING_SIZE_0_511 },

  { &hf_h235_base           , ASN1_NO_EXTENSIONS     , ASN1_NOT_OPTIONAL, dissect_h235_ECpoint },

  { &hf_h235_weierstrassA   , ASN1_NO_EXTENSIONS     , ASN1_NOT_OPTIONAL, dissect_h235_BIT_STRING_SIZE_0_511 },

  { &hf_h235_weierstrassB   , ASN1_NO_EXTENSIONS     , ASN1_NOT_OPTIONAL, dissect_h235_BIT_STRING_SIZE_0_511 },

  { NULL, 0, 0, NULL }

};

static unsigned

dissect_h235_T_eckasdhp(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_sequence(tvb, offset, actx, tree, hf_index,

                                   ett_h235_T_eckasdhp, T_eckasdhp_sequence);

  return offset;

}

static const per_sequence_t T_eckasdh2_sequence[] = {

  { &hf_h235_public_key     , ASN1_NO_EXTENSIONS     , ASN1_NOT_OPTIONAL, dissect_h235_ECpoint },

  { &hf_h235_fieldSize      , ASN1_NO_EXTENSIONS     , ASN1_NOT_OPTIONAL, dissect_h235_BIT_STRING_SIZE_0_511 },

  { &hf_h235_base           , ASN1_NO_EXTENSIONS     , ASN1_NOT_OPTIONAL, dissect_h235_ECpoint },

  { &hf_h235_weierstrassA   , ASN1_NO_EXTENSIONS     , ASN1_NOT_OPTIONAL, dissect_h235_BIT_STRING_SIZE_0_511 },

  { &hf_h235_weierstrassB   , ASN1_NO_EXTENSIONS     , ASN1_NOT_OPTIONAL, dissect_h235_BIT_STRING_SIZE_0_511 },

  { NULL, 0, 0, NULL }

};

static unsigned

dissect_h235_T_eckasdh2(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_sequence(tvb, offset, actx, tree, hf_index,

                                   ett_h235_T_eckasdh2, T_eckasdh2_sequence);

  return offset;

}

static const value_string h235_ECKASDH_vals[] = {

  {   0, "eckasdhp" },

  {   1, "eckasdh2" },

  { 0, NULL }

};

static const per_choice_t ECKASDH_choice[] = {

  {   0, &hf_h235_eckasdhp       , ASN1_EXTENSION_ROOT    , dissect_h235_T_eckasdhp },

  {   1, &hf_h235_eckasdh2       , ASN1_EXTENSION_ROOT    , dissect_h235_T_eckasdh2 },

  { 0, NULL, 0, NULL }

};

static unsigned

dissect_h235_ECKASDH(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_choice(tvb, offset, actx, tree, hf_index,

                                 ett_h235_ECKASDH, ECKASDH_choice,

                                 NULL);

  return offset;

}

static const per_sequence_t TypedCertificate_sequence[] = {

  { &hf_h235_type           , ASN1_EXTENSION_ROOT    , ASN1_NOT_OPTIONAL, dissect_h235_OBJECT_IDENTIFIER },

  { &hf_h235_certificatedata, ASN1_EXTENSION_ROOT    , ASN1_NOT_OPTIONAL, dissect_h235_OCTET_STRING },

  { NULL, 0, 0, NULL }

};

static unsigned

dissect_h235_TypedCertificate(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_sequence(tvb, offset, actx, tree, hf_index,

                                   ett_h235_TypedCertificate, TypedCertificate_sequence);

  return offset;

}

static unsigned

dissect_h235_NULL(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_null(tvb, offset, actx, tree, hf_index);

  return offset;

}

static const value_string h235_AuthenticationBES_vals[] = {

  {   0, "default" },

  {   1, "radius" },

  { 0, NULL }

};

static const per_choice_t AuthenticationBES_choice[] = {

  {   0, &hf_h235_default        , ASN1_EXTENSION_ROOT    , dissect_h235_NULL },

  {   1, &hf_h235_radius         , ASN1_EXTENSION_ROOT    , dissect_h235_NULL },

  { 0, NULL, 0, NULL }

};

static unsigned

dissect_h235_AuthenticationBES(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_choice(tvb, offset, actx, tree, hf_index,

                                 ett_h235_AuthenticationBES, AuthenticationBES_choice,

                                 NULL);

  return offset;

}

const value_string h235_AuthenticationMechanism_vals[] = {

  {   0, "dhExch" },

  {   1, "pwdSymEnc" },

  {   2, "pwdHash" },

  {   3, "certSign" },

  {   4, "ipsec" },

  {   5, "tls" },

  {   6, "nonStandard" },

  {   7, "authenticationBES" },

  {   8, "keyExch" },

  { 0, NULL }

};

static const per_choice_t AuthenticationMechanism_choice[] = {

  {   0, &hf_h235_dhExch         , ASN1_EXTENSION_ROOT    , dissect_h235_NULL },

  {   1, &hf_h235_pwdSymEnc      , ASN1_EXTENSION_ROOT    , dissect_h235_NULL },

  {   2, &hf_h235_pwdHash        , ASN1_EXTENSION_ROOT    , dissect_h235_NULL },

  {   3, &hf_h235_certSign       , ASN1_EXTENSION_ROOT    , dissect_h235_NULL },

  {   4, &hf_h235_ipsec          , ASN1_EXTENSION_ROOT    , dissect_h235_NULL },

  {   5, &hf_h235_tls            , ASN1_EXTENSION_ROOT    , dissect_h235_NULL },

  {   6, &hf_h235_nonStandard    , ASN1_EXTENSION_ROOT    , dissect_h235_NonStandardParameter },

  {   7, &hf_h235_authenticationBES, ASN1_NOT_EXTENSION_ROOT, dissect_h235_AuthenticationBES },

  {   8, &hf_h235_keyExch        , ASN1_NOT_EXTENSION_ROOT, dissect_h235_OBJECT_IDENTIFIER },

  { 0, NULL, 0, NULL }

};

unsigned

dissect_h235_AuthenticationMechanism(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_choice(tvb, offset, actx, tree, hf_index,

                                 ett_h235_AuthenticationMechanism, AuthenticationMechanism_choice,

                                 NULL);

  return offset;

}

static unsigned

dissect_h235_INTEGER(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_integer(tvb, offset, actx, tree, hf_index, NULL);

  return offset;

}

static unsigned

dissect_h235_IV8(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_octet_string(tvb, offset, actx, tree, hf_index,

                                       8, 8, false, NULL);

  return offset;

}

static unsigned

dissect_h235_IV16(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_octet_string(tvb, offset, actx, tree, hf_index,

                                       16, 16, false, NULL);

  return offset;

}

static const per_sequence_t Params_sequence[] = {

  { &hf_h235_ranInt         , ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_INTEGER },

  { &hf_h235_iv8            , ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_IV8 },

  { &hf_h235_iv16           , ASN1_NOT_EXTENSION_ROOT, ASN1_OPTIONAL    , dissect_h235_IV16 },

  { &hf_h235_iv             , ASN1_NOT_EXTENSION_ROOT, ASN1_OPTIONAL    , dissect_h235_OCTET_STRING },

  { &hf_h235_clearSalt      , ASN1_NOT_EXTENSION_ROOT, ASN1_OPTIONAL    , dissect_h235_OCTET_STRING },

  { NULL, 0, 0, NULL }

};

static unsigned

dissect_h235_Params(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_sequence(tvb, offset, actx, tree, hf_index,

                                   ett_h235_Params, Params_sequence);

  return offset;

}

static const per_sequence_t ENCRYPTED_sequence[] = {

  { &hf_h235_algorithmOID   , ASN1_NO_EXTENSIONS     , ASN1_NOT_OPTIONAL, dissect_h235_OBJECT_IDENTIFIER },

  { &hf_h235_paramS         , ASN1_NO_EXTENSIONS     , ASN1_NOT_OPTIONAL, dissect_h235_Params },

  { &hf_h235_encryptedData  , ASN1_NO_EXTENSIONS     , ASN1_NOT_OPTIONAL, dissect_h235_OCTET_STRING },

  { NULL, 0, 0, NULL }

};

unsigned

dissect_h235_ENCRYPTED(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  proto_item  *hidden_item;

  hidden_item = proto_tree_add_item(tree, proto_h235, tvb, offset>>3, 0, ENC_NA);

  proto_item_set_hidden(hidden_item);

  offset = dissect_per_sequence(tvb, offset, actx, tree, hf_index,

                                   ett_h235_ENCRYPTED, ENCRYPTED_sequence);

  return offset;

}

static unsigned

dissect_h235_BIT_STRING(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_bit_string(tvb, offset, actx, tree, hf_index,

                                     NO_BOUND, NO_BOUND, false, NULL, 0, NULL, NULL);

  return offset;

}

static const per_sequence_t SIGNED_sequence[] = {

  { &hf_h235_toBeSigned     , ASN1_NO_EXTENSIONS     , ASN1_NOT_OPTIONAL, dissect_h235_ToBeSigned },

  { &hf_h235_algorithmOID   , ASN1_NO_EXTENSIONS     , ASN1_NOT_OPTIONAL, dissect_h235_OBJECT_IDENTIFIER },

  { &hf_h235_paramS         , ASN1_NO_EXTENSIONS     , ASN1_NOT_OPTIONAL, dissect_h235_Params },

  { &hf_h235_signaturedata  , ASN1_NO_EXTENSIONS     , ASN1_NOT_OPTIONAL, dissect_h235_BIT_STRING },

  { NULL, 0, 0, NULL }

};

unsigned

dissect_h235_SIGNED(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  proto_item  *hidden_item;

  hidden_item = proto_tree_add_item(tree, proto_h235, tvb, offset>>3, 0, ENC_NA);

  proto_item_set_hidden(hidden_item);

  offset = dissect_per_sequence(tvb, offset, actx, tree, hf_index,

                                   ett_h235_SIGNED, SIGNED_sequence);

  return offset;

}

static const per_sequence_t V3KeySyncMaterial_sequence[] = {

  { &hf_h235_generalID      , ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_Identifier },

  { &hf_h235_algorithmOID   , ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_OBJECT_IDENTIFIER },

  { &hf_h235_paramS         , ASN1_EXTENSION_ROOT    , ASN1_NOT_OPTIONAL, dissect_h235_Params },

  { &hf_h235_encryptedSessionKey, ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_OCTET_STRING },

  { &hf_h235_encryptedSaltingKey, ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_OCTET_STRING },

  { &hf_h235_clearSaltingKey, ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_OCTET_STRING },

  { &hf_h235_paramSsalt     , ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_Params },

  { &hf_h235_keyDerivationOID, ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_OBJECT_IDENTIFIER },

  { &hf_h235_genericKeyMaterial, ASN1_NOT_EXTENSION_ROOT, ASN1_OPTIONAL    , dissect_h235_OCTET_STRING },

  { NULL, 0, 0, NULL }

};

static unsigned

dissect_h235_V3KeySyncMaterial(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_sequence(tvb, offset, actx, tree, hf_index,

                                   ett_h235_V3KeySyncMaterial, V3KeySyncMaterial_sequence);

  return offset;

}

static const value_string h235_H235Key_vals[] = {

  {   0, "secureChannel" },

  {   1, "sharedSecret" },

  {   2, "certProtectedKey" },

  {   3, "secureSharedSecret" },

  { 0, NULL }

};

static const per_choice_t H235Key_choice[] = {

  {   0, &hf_h235_secureChannel  , ASN1_EXTENSION_ROOT    , dissect_h235_KeyMaterial },

  {   1, &hf_h235_sharedSecret   , ASN1_EXTENSION_ROOT    , dissect_h235_ENCRYPTED },

  {   2, &hf_h235_certProtectedKey, ASN1_EXTENSION_ROOT    , dissect_h235_SIGNED },

  {   3, &hf_h235_secureSharedSecret, ASN1_NOT_EXTENSION_ROOT, dissect_h235_V3KeySyncMaterial },

  { 0, NULL, 0, NULL }

};

static unsigned

dissect_h235_H235Key(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_choice(tvb, offset, actx, tree, hf_index,

                                 ett_h235_H235Key, H235Key_choice,

                                 NULL);

  return offset;

}

static unsigned

dissect_h235_INTEGER_0_255(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_constrained_integer(tvb, offset, actx, tree, hf_index,

                                                            0U, 255U, NULL, false);

  return offset;

}

static unsigned

dissect_h235_BMPString(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_BMPString(tvb, offset, actx, tree, hf_index,

                                          NO_BOUND, NO_BOUND, false);

  return offset;

}

static unsigned

dissect_h235_BOOLEAN(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_boolean(tvb, offset, actx, tree, hf_index, NULL);

  return offset;

}

static const value_string h235_Element_vals[] = {

  {   0, "octets" },

  {   1, "integer" },

  {   2, "bits" },

  {   3, "name" },

  {   4, "flag" },

  { 0, NULL }

};

static const per_choice_t Element_choice[] = {

  {   0, &hf_h235_octets         , ASN1_EXTENSION_ROOT    , dissect_h235_OCTET_STRING },

  {   1, &hf_h235_integer        , ASN1_EXTENSION_ROOT    , dissect_h235_INTEGER },

  {   2, &hf_h235_bits           , ASN1_EXTENSION_ROOT    , dissect_h235_BIT_STRING },

  {   3, &hf_h235_name           , ASN1_EXTENSION_ROOT    , dissect_h235_BMPString },

  {   4, &hf_h235_flag           , ASN1_EXTENSION_ROOT    , dissect_h235_BOOLEAN },

  { 0, NULL, 0, NULL }

};

static unsigned

dissect_h235_Element(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_choice(tvb, offset, actx, tree, hf_index,

                                 ett_h235_Element, Element_choice,

                                 NULL);

  return offset;

}

static const per_sequence_t ProfileElement_sequence[] = {

  { &hf_h235_elementID      , ASN1_EXTENSION_ROOT    , ASN1_NOT_OPTIONAL, dissect_h235_INTEGER_0_255 },

  { &hf_h235_paramS         , ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_Params },

  { &hf_h235_element        , ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_Element },

  { NULL, 0, 0, NULL }

};

static unsigned

dissect_h235_ProfileElement(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_sequence(tvb, offset, actx, tree, hf_index,

                                   ett_h235_ProfileElement, ProfileElement_sequence);

  return offset;

}

static const per_sequence_t SEQUENCE_OF_ProfileElement_sequence_of[1] = {

  { &hf_h235_profileInfo_item, ASN1_NO_EXTENSIONS     , ASN1_NOT_OPTIONAL, dissect_h235_ProfileElement },

};

static unsigned

dissect_h235_SEQUENCE_OF_ProfileElement(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_sequence_of(tvb, offset, actx, tree, hf_index,

                                      ett_h235_SEQUENCE_OF_ProfileElement, SEQUENCE_OF_ProfileElement_sequence_of);

  return offset;

}

static const per_sequence_t ClearToken_sequence[] = {

  { &hf_h235_tokenOID       , ASN1_EXTENSION_ROOT    , ASN1_NOT_OPTIONAL, dissect_h235_OBJECT_IDENTIFIER },

  { &hf_h235_timeStamp      , ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_TimeStamp },

  { &hf_h235_password       , ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_Password },

  { &hf_h235_dhkey          , ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_DHset },

  { &hf_h235_challenge      , ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_ChallengeString },

  { &hf_h235_random         , ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_RandomVal },

  { &hf_h235_certificate    , ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_TypedCertificate },

  { &hf_h235_generalID      , ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_Identifier },

  { &hf_h235_nonStandard    , ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_NonStandardParameter },

  { &hf_h235_eckasdhkey     , ASN1_NOT_EXTENSION_ROOT, ASN1_OPTIONAL    , dissect_h235_ECKASDH },

  { &hf_h235_sendersID      , ASN1_NOT_EXTENSION_ROOT, ASN1_OPTIONAL    , dissect_h235_Identifier },

  { &hf_h235_h235Key        , ASN1_NOT_EXTENSION_ROOT, ASN1_OPTIONAL    , dissect_h235_H235Key },

  { &hf_h235_profileInfo    , ASN1_NOT_EXTENSION_ROOT, ASN1_OPTIONAL    , dissect_h235_SEQUENCE_OF_ProfileElement },

  { NULL, 0, 0, NULL }

};

unsigned

dissect_h235_ClearToken(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  proto_item  *hidden_item;

  hidden_item = proto_tree_add_item(tree, proto_h235, tvb, offset>>3, 0, ENC_NA);

  proto_item_set_hidden(hidden_item);

  offset = dissect_per_sequence(tvb, offset, actx, tree, hf_index,

                                   ett_h235_ClearToken, ClearToken_sequence);

  return offset;

}

static const per_sequence_t HASHED_sequence[] = {

  { &hf_h235_algorithmOID   , ASN1_NO_EXTENSIONS     , ASN1_NOT_OPTIONAL, dissect_h235_OBJECT_IDENTIFIER },

  { &hf_h235_paramS         , ASN1_NO_EXTENSIONS     , ASN1_NOT_OPTIONAL, dissect_h235_Params },

  { &hf_h235_hash           , ASN1_NO_EXTENSIONS     , ASN1_NOT_OPTIONAL, dissect_h235_BIT_STRING },

  { NULL, 0, 0, NULL }

};

unsigned

dissect_h235_HASHED(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  proto_item  *hidden_item;

  hidden_item = proto_tree_add_item(tree, proto_h235, tvb, offset>>3, 0, ENC_NA);

  proto_item_set_hidden(hidden_item);

  offset = dissect_per_sequence(tvb, offset, actx, tree, hf_index,

                                   ett_h235_HASHED, HASHED_sequence);

  return offset;

}

static const per_sequence_t T_cryptoEncryptedToken_sequence[] = {

  { &hf_h235_tokenOID       , ASN1_NO_EXTENSIONS     , ASN1_NOT_OPTIONAL, dissect_h235_OBJECT_IDENTIFIER },

  { &hf_h235_encryptedToken , ASN1_NO_EXTENSIONS     , ASN1_NOT_OPTIONAL, dissect_h235_ENCRYPTED },

  { NULL, 0, 0, NULL }

};

static unsigned

dissect_h235_T_cryptoEncryptedToken(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_sequence(tvb, offset, actx, tree, hf_index,

                                   ett_h235_T_cryptoEncryptedToken, T_cryptoEncryptedToken_sequence);

  return offset;

}

static const per_sequence_t T_cryptoSignedToken_sequence[] = {

  { &hf_h235_tokenOID       , ASN1_NO_EXTENSIONS     , ASN1_NOT_OPTIONAL, dissect_h235_OBJECT_IDENTIFIER },

  { &hf_h235_signedToken    , ASN1_NO_EXTENSIONS     , ASN1_NOT_OPTIONAL, dissect_h235_SIGNED },

  { NULL, 0, 0, NULL }

};

static unsigned

dissect_h235_T_cryptoSignedToken(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_sequence(tvb, offset, actx, tree, hf_index,

                                   ett_h235_T_cryptoSignedToken, T_cryptoSignedToken_sequence);

  return offset;

}

static const per_sequence_t T_cryptoHashedToken_sequence[] = {

  { &hf_h235_tokenOID       , ASN1_NO_EXTENSIONS     , ASN1_NOT_OPTIONAL, dissect_h235_OBJECT_IDENTIFIER },

  { &hf_h235_hashedVals     , ASN1_NO_EXTENSIONS     , ASN1_NOT_OPTIONAL, dissect_h235_ClearToken },

  { &hf_h235_hashedToken    , ASN1_NO_EXTENSIONS     , ASN1_NOT_OPTIONAL, dissect_h235_HASHED },

  { NULL, 0, 0, NULL }

};

static unsigned

dissect_h235_T_cryptoHashedToken(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_sequence(tvb, offset, actx, tree, hf_index,

                                   ett_h235_T_cryptoHashedToken, T_cryptoHashedToken_sequence);

  return offset;

}

const value_string h235_CryptoToken_vals[] = {

  {   0, "cryptoEncryptedToken" },

  {   1, "cryptoSignedToken" },

  {   2, "cryptoHashedToken" },

  {   3, "cryptoPwdEncr" },

  { 0, NULL }

};

static const per_choice_t CryptoToken_choice[] = {

  {   0, &hf_h235_cryptoEncryptedToken, ASN1_EXTENSION_ROOT    , dissect_h235_T_cryptoEncryptedToken },

  {   1, &hf_h235_cryptoSignedToken, ASN1_EXTENSION_ROOT    , dissect_h235_T_cryptoSignedToken },

  {   2, &hf_h235_cryptoHashedToken, ASN1_EXTENSION_ROOT    , dissect_h235_T_cryptoHashedToken },

  {   3, &hf_h235_cryptoPwdEncr  , ASN1_EXTENSION_ROOT    , dissect_h235_ENCRYPTED },

  { 0, NULL, 0, NULL }

};

unsigned

dissect_h235_CryptoToken(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  proto_item  *hidden_item;

  hidden_item = proto_tree_add_item(tree, proto_h235, tvb, offset>>3, 0, ENC_NA);

  proto_item_set_hidden(hidden_item);

  offset = dissect_per_choice(tvb, offset, actx, tree, hf_index,

                                 ett_h235_CryptoToken, CryptoToken_choice,

                                 NULL);

  return offset;

}

static unsigned

dissect_h235_INTEGER_0_24(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_constrained_integer(tvb, offset, actx, tree, hf_index,

                                                            0U, 24U, NULL, false);

  return offset;

}

static const per_sequence_t FecOrder_sequence[] = {

  { &hf_h235_fecBeforeSrtp  , ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_NULL },

  { &hf_h235_fecAfterSrtp   , ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_NULL },

  { NULL, 0, 0, NULL }

};

static unsigned

dissect_h235_FecOrder(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_sequence(tvb, offset, actx, tree, hf_index,

                                   ett_h235_FecOrder, FecOrder_sequence);

  return offset;

}

static unsigned

dissect_h235_INTEGER_64_65535(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_constrained_integer(tvb, offset, actx, tree, hf_index,

                                                            64U, 65535U, NULL, false);

  return offset;

}

static const per_sequence_t SEQUENCE_OF_GenericData_sequence_of[1] = {

  { &hf_h235_newParameter_item, ASN1_NO_EXTENSIONS     , ASN1_NOT_OPTIONAL, dissect_h225_GenericData },

};

static unsigned

dissect_h235_SEQUENCE_OF_GenericData(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_sequence_of(tvb, offset, actx, tree, hf_index,

                                      ett_h235_SEQUENCE_OF_GenericData, SEQUENCE_OF_GenericData_sequence_of);

  return offset;

}

static const per_sequence_t SrtpSessionParameters_sequence[] = {

  { &hf_h235_kdr            , ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_INTEGER_0_24 },

  { &hf_h235_unencryptedSrtp, ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_BOOLEAN },

  { &hf_h235_unencryptedSrtcp, ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_BOOLEAN },

  { &hf_h235_unauthenticatedSrtp, ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_BOOLEAN },

  { &hf_h235_fecOrder       , ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_FecOrder },

  { &hf_h235_windowSizeHint , ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_INTEGER_64_65535 },

  { &hf_h235_newParameter   , ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_SEQUENCE_OF_GenericData },

  { NULL, 0, 0, NULL }

};

static unsigned

dissect_h235_SrtpSessionParameters(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_sequence(tvb, offset, actx, tree, hf_index,

                                   ett_h235_SrtpSessionParameters, SrtpSessionParameters_sequence);

  return offset;

}

static const per_sequence_t SrtpCryptoInfo_sequence[] = {

  { &hf_h235_cryptoSuite    , ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_OBJECT_IDENTIFIER },

  { &hf_h235_sessionParams  , ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_SrtpSessionParameters },

  { &hf_h235_allowMKI       , ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_BOOLEAN },

  { NULL, 0, 0, NULL }

};

static unsigned

dissect_h235_SrtpCryptoInfo(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_sequence(tvb, offset, actx, tree, hf_index,

                                   ett_h235_SrtpCryptoInfo, SrtpCryptoInfo_sequence);

  return offset;

}

static const per_sequence_t SrtpCryptoCapability_sequence_of[1] = {

  { &hf_h235_SrtpCryptoCapability_item, ASN1_NO_EXTENSIONS     , ASN1_NOT_OPTIONAL, dissect_h235_SrtpCryptoInfo },

};

static unsigned

dissect_h235_SrtpCryptoCapability(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_sequence_of(tvb, offset, actx, tree, hf_index,

                                      ett_h235_SrtpCryptoCapability, SrtpCryptoCapability_sequence_of);

  return offset;

}

static const value_string h235_T_lifetime_vals[] = {

  {   0, "powerOfTwo" },

  {   1, "specific" },

  { 0, NULL }

};

static const per_choice_t T_lifetime_choice[] = {

  {   0, &hf_h235_powerOfTwo     , ASN1_EXTENSION_ROOT    , dissect_h235_INTEGER },

  {   1, &hf_h235_specific       , ASN1_EXTENSION_ROOT    , dissect_h235_INTEGER },

  { 0, NULL, 0, NULL }

};

static unsigned

dissect_h235_T_lifetime(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_choice(tvb, offset, actx, tree, hf_index,

                                 ett_h235_T_lifetime, T_lifetime_choice,

                                 NULL);

  return offset;

}

static unsigned

dissect_h235_INTEGER_1_128(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_constrained_integer(tvb, offset, actx, tree, hf_index,

                                                            1U, 128U, NULL, false);

  return offset;

}

static const per_sequence_t T_mki_sequence[] = {

  { &hf_h235_length         , ASN1_EXTENSION_ROOT    , ASN1_NOT_OPTIONAL, dissect_h235_INTEGER_1_128 },

  { &hf_h235_value          , ASN1_EXTENSION_ROOT    , ASN1_NOT_OPTIONAL, dissect_h235_OCTET_STRING },

  { NULL, 0, 0, NULL }

};

static unsigned

dissect_h235_T_mki(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_sequence(tvb, offset, actx, tree, hf_index,

                                   ett_h235_T_mki, T_mki_sequence);

  return offset;

}

static const per_sequence_t SrtpKeyParameters_sequence[] = {

  { &hf_h235_masterKey      , ASN1_EXTENSION_ROOT    , ASN1_NOT_OPTIONAL, dissect_h235_OCTET_STRING },

  { &hf_h235_masterSalt     , ASN1_EXTENSION_ROOT    , ASN1_NOT_OPTIONAL, dissect_h235_OCTET_STRING },

  { &hf_h235_lifetime       , ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_T_lifetime },

  { &hf_h235_mki            , ASN1_EXTENSION_ROOT    , ASN1_OPTIONAL    , dissect_h235_T_mki },

  { NULL, 0, 0, NULL }

};

static unsigned

dissect_h235_SrtpKeyParameters(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_sequence(tvb, offset, actx, tree, hf_index,

                                   ett_h235_SrtpKeyParameters, SrtpKeyParameters_sequence);

  return offset;

}

static const per_sequence_t SrtpKeys_sequence_of[1] = {

  { &hf_h235_SrtpKeys_item  , ASN1_NO_EXTENSIONS     , ASN1_NOT_OPTIONAL, dissect_h235_SrtpKeyParameters },

};

unsigned

dissect_h235_SrtpKeys(tvbuff_t *tvb _U_, uint32_t offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {

  offset = dissect_per_sequence_of(tvb, offset, actx, tree, hf_index,

                                      ett_h235_SrtpKeys, SrtpKeys_sequence_of);

  return offset;

}

/*--- PDUs ---*/

static int dissect_SrtpCryptoCapability_PDU(tvbuff_t *tvb _U_, packet_info *pinfo _U_, proto_tree *tree _U_, void *data _U_) {

  unsigned offset = 0;

  asn1_ctx_t asn1_ctx;

  asn1_ctx_init(&asn1_ctx, ASN1_ENC_PER, true, pinfo);

  offset = dissect_h235_SrtpCryptoCapability(tvb, offset, &asn1_ctx, tree, hf_h235_SrtpCryptoCapability_PDU);

  offset += 7; offset >>= 3;

  return offset;

}

/*--- proto_register_h235 ----------------------------------------------*/

void proto_register_h235(void) {

  /* List of fields */

  static hf_register_info hf[] = {

    { &hf_h235_SrtpCryptoCapability_PDU,

      { "SrtpCryptoCapability", "h235.SrtpCryptoCapability",

        FT_UINT32, BASE_DEC, NULL, 0,

        NULL, HFILL }},

    { &hf_h235_nonStandardIdentifier,

      { "nonStandardIdentifier", "h235.nonStandardIdentifier",

        FT_OID, BASE_NONE, NULL, 0,

        "OBJECT_IDENTIFIER", HFILL }},

    { &hf_h235_data,

      { "data", "h235.data",

        FT_UINT32, BASE_DEC, NULL, 0,

        "OCTET_STRING", HFILL }},

    { &hf_h235_halfkey,

      { "halfkey", "h235.halfkey",

        FT_BYTES, BASE_NONE, NULL, 0,

        "BIT_STRING_SIZE_0_2048", HFILL }},

    { &hf_h235_modSize,

      { "modSize", "h235.modSize",

        FT_BYTES, BASE_NONE, NULL, 0,

        "BIT_STRING_SIZE_0_2048", HFILL }},

    { &hf_h235_generator,

      { "generator", "h235.generator",

        FT_BYTES, BASE_NONE, NULL, 0,

        "BIT_STRING_SIZE_0_2048", HFILL }},

    { &hf_h235_x,

      { "x", "h235.x",

        FT_BYTES, BASE_NONE, NULL, 0,

        "BIT_STRING_SIZE_0_511", HFILL }},

    { &hf_h235_y,

      { "y", "h235.y",

        FT_BYTES, BASE_NONE, NULL, 0,

        "BIT_STRING_SIZE_0_511", HFILL }},

    { &hf_h235_eckasdhp,

      { "eckasdhp", "h235.eckasdhp_element",

        FT_NONE, BASE_NONE, NULL, 0,

        NULL, HFILL }},

    { &hf_h235_public_key,

      { "public-key", "h235.public_key_element",

        FT_NONE, BASE_NONE, NULL, 0,

        "ECpoint", HFILL }},

    { &hf_h235_modulus,

      { "modulus", "h235.modulus",

        FT_BYTES, BASE_NONE, NULL, 0,

        "BIT_STRING_SIZE_0_511", HFILL }},

    { &hf_h235_base,

      { "base", "h235.base_element",

        FT_NONE, BASE_NONE, NULL, 0,

        "ECpoint", HFILL }},

    { &hf_h235_weierstrassA,

      { "weierstrassA", "h235.weierstrassA",