/*************************************************
* Enumerations Header File                       *
* (C) 1999-2003 The Botan Project                *
*************************************************/

#ifndef BOTAN_ENUMS_H__
#define BOTAN_ENUMS_H__

#include <botan/config.h>

namespace Botan {

/*************************************************
* ASN.1 Type and Class Tags                      *
*************************************************/
enum ASN1_Tag {
   EOC              = 0x00,
   BOOLEAN          = 0x01,
   INTEGER          = 0x02,
   BIT_STRING       = 0x03,
   OCTET_STRING     = 0x04,
   NULL_TAG         = 0x05,
   OBJECT_ID        = 0x06,
   ENUMERATED       = 0x0A,
   SEQUENCE         = 0x10,
   SET              = 0x11,

   UTF8_STRING      = 0x0C,
   NUMERIC_STRING   = 0x12,
   PRINTABLE_STRING = 0x13,
   T61_STRING       = 0x14,
   IA5_STRING       = 0x16,
   VISIBLE_STRING   = 0x1A,
   BMP_STRING       = 0x1E,

   UTC_TIME         = 0x17,
   GENERALIZED_TIME = 0x18,

   CONSTRUCTED      = 0x20,

   UNIVERSAL        = 0x00,
   APPLICATION      = 0x40,
   CONTEXT_SPECIFIC = 0x80,
   PRIVATE          = 0xC0,

   NO_OBJECT        = 0xFF00,
   DIRECTORY_STRING = 0xFF01
};

/*************************************************
* X.509v3 Key Constraints                        *
*************************************************/
enum Key_Constraints {
   NO_CONSTRAINTS     = 0,
   DIGITAL_SIGNATURE  = 32768,
   NON_REPUDIATION    = 16384,
   KEY_ENCIPHERMENT   = 8192,
   DATA_ENCIPHERMENT  = 4096,
   KEY_AGREEMENT      = 2048,
   KEY_CERT_SIGN      = 1024,
   CRL_SIGN           = 512,
   ENCIPHER_ONLY      = 256,
   DECIPHER_ONLY      = 128
};

/*************************************************
* X.509v2 CRL Reason Code                        *
*************************************************/
enum CRL_Code {
   UNSPECIFIED            = 0,
   KEY_COMPROMISE         = 1,
   CA_COMPROMISE          = 2,
   AFFILIATION_CHANGED    = 3,
   SUPERSEDED             = 4,
   CESSATION_OF_OPERATION = 5,
   CERTIFICATE_HOLD       = 6,
   REMOVE_FROM_CRL        = 8,
   PRIVLEDGE_WITHDRAWN    = 9,
   AA_COMPROMISE          = 10
};

/*************************************************
* X.509 Certificate Validation Result            *
*************************************************/
enum X509_Code {
   VERIFIED,
   UNKNOWN_X509_ERROR,
   CANNOT_ESTABLISH_TRUST,
   CERT_CHAIN_TOO_LONG,
   SIGNATURE_ERROR,
   POLICY_ERROR,
   INVALID_USAGE,

   CERT_FORMAT_ERROR,
   CERT_ISSUER_NOT_FOUND,
   CERT_NOT_YET_VALID,
   CERT_HAS_EXPIRED,
   CERT_IS_REVOKED,

   CRL_FORMAT_ERROR,
   CRL_ISSUER_NOT_FOUND,
   CRL_NOT_YET_VALID,
   CRL_HAS_EXPIRED,

   CA_CERT_CANNOT_SIGN = 30,
   CA_CERT_NOT_FOR_CERT_ISSUER,
   CA_CERT_NOT_FOR_CRL_ISSUER
};

/*************************************************
* X.509 Certificate Usage Field                  *
*************************************************/
enum Cert_Usage {
   ANY              = 0x00,
   TLS_SERVER       = 0x01,
   TLS_CLIENT       = 0x02,
   CODE_SIGNING     = 0x04,
   EMAIL_PROTECTION = 0x08,
   TIME_STAMPING    = 0x10,
   CRL_SIGNING      = 0x20
};

/*************************************************
* Various Other Enumerations                     *
*************************************************/
enum RNG_Quality { Nonce = 0, PublicValue = 0, SessionKey, LongTermKey };

enum Decoder_Checking { NONE, IGNORE_WS, FULL_CHECK };

enum X509_Encoding { RAW_BER, PEM };

enum Cipher_Dir { ENCRYPTION, DECRYPTION };

enum Signature_Format { IEEE_1363, DER_SEQUENCE };

}

#endif
