/**
     * The des-cbc-crc encryption type.
     */
    DES_CBC_CRC( 1 ),

    /**
     * The des-cbc-md4 encryption type.
     */
    DES_CBC_MD4( 2 ),

    /**
     * The des-cbc-md5 encryption type.
     */
    DES_CBC_MD5( 3 ),

    /**
     * The reserved (4) encryption type.
     */
    RESERVED4( 4 ),

    /**
     * The des3-cbc-md5 encryption type.
     */
    DES3_CBC_MD5( 5 ),

    /**
     * The reserved (6) encryption type.
     */
    RESERVED6( 6 ),

    /**
     * The des3-cbc-sha1 encryption type.
     */
    DES3_CBC_SHA1( 7 ),

    /**
     * The dsaWithSHA1-CmsOID encryption type.
     */
    DSAWITHSHA1_CMSOID( 9 ),

    /**
     * The md5WithRSAEncryption-CmsOID encryption type.
     */
    MD5WITHRSAENCRYPTION_CMSOID( 10 ),

    /**
     * The sha1WithRSAEncryption-CmsOID encryption type.
     */
    SHA1WITHRSAENCRYPTION_CMSOID( 11 ),

    /**
     * The rc2CBC-EnvOID encryption type.
     */
    RC2CBC_ENVOID( 12 ),

    /**
     * The rsaEncryption-EnvOID encryption type.
     */
    RSAENCRYPTION_ENVOID( 13 ),

    /**
     * The rsaES-OAEP-ENV-OID encryption type.
     */
    RSAES_OAEP_ENV_OID( 14 ),

    /**
     * The des-ede3-cbc-Env-OID encryption type.
     */
    DES_EDE3_CBC_ENV_OID( 15 ),

    /**
     * The des3-cbc-sha1-kd encryption type.
     */
    DES3_CBC_SHA1_KD( 16 ),

    /**
     * The aes128-cts-hmac-sha1-96 encryption type.
     */
    AES128_CTS_HMAC_SHA1_96( 17 ),

    /**
     * The aes256-cts-hmac-sha1-96 encryption type.
     */
    AES256_CTS_HMAC_SHA1_96( 18 ),

    /**
     * The rc4-hmac encryption type.
     */
    RC4_HMAC( 23 ),

    /**
     * The rc4-hmac-exp encryption type.
     */
    RC4_HMAC_EXP( 24 ),

    /**
     * The subkey-keymaterial encryption type.
     */
    SUBKEY_KEYMATERIAL( 65 ),

    /**
     * The rc4-md4 encryption type.
     */
    RC4_MD4( -128 ),

    /**
     * The c4-hmac-old encryption type.
     */
    RC4_HMAC_OLD( -133 ),

    /**
     * The rc4-hmac-old-exp encryption type.
     */
    RC4_HMAC_OLD_EXP( -135 );