ENCRYPT

The ENCRYPT function encrypts strings.

COMMAND SYNTAX

    ENCRYPT(string, key, method)

SYNTAX ELEMENTS

string specifies the string for encryption.

key is the value used to encrypt the string. Its use depends on method.

method is a value, which indicates the encryption mechanism to use (See below):

The ENCRYPT and DECRYPT functions that are part of jBC now support the following cipher methods (Defined in JBC.h)

ValueDescription
JBASE_CRYPT_GENERALGeneral-purpose encryption scheme
JBASE_CRYPT_ROT13Simple ROT13 algorithm. (Key not used)
JBASE_CRYPT_XOR11XOR MOD11 algorithm. Uses the first character of
a key as a seed value.
JBASE_CRYPT_RC2RC2 algorithm
JBASE_CRYPT_DESDES algorithm
JBASE_CRYPT_3DESThree Key, Triple DES algorithm
JBASE_CRYPT_BLOWFISHBlowfish algorithm
JBASE_CRYPT_AESAES algorithm
JBASE_CRYPT_BASE64(See below)

BASE64 is more of an encoding method rather than an encryption method. The reason for this is that the output of an encryption often results in a binary string, which allows the representation of binary data as a character string. Although not required the BASE64 operation is performed in addition to the primary algorithm. E.g. JBASE_CRYPT_RC2_BASE64

ENCRYPT with this method is the same as an ENCRYPT with method JBASE_CRYPT_RC2 followed by ENCRYPT with method JBASE_CRYPT_BASE64.

DECRYPT with this method is the same as a DECRYPT with method JBASE_CRYPT_BASE64 followed by DECRYPT with method JBASE_CRYPT_RC2.

ValueDescription
JBASE_CRYPT_RC2_BASE64RC2 algorithm
JBASE_CRYPT_DES_BASE64DES algorithm
JBASE_CRYPT_3DES_BASE64Triple DES algorithm
JBASE_CRYPT_BLOWFISH_BASE64Blowfish algorithm
JBASE_CRYPT_AES_BASE64AES algorithm

NOTES

See also: DECRYPT.

EXAMPLES

    INCLUDE JBC.h
    IF DECRYPT('rknzcyr', '', JBASE_CRYPT_ROT13) = "example" THEN
    CRT "ROT13 ok"
    END
    //
    IF ENCRYPT('g{ehvkm', '9', JBASE_CRYPT_XOR11) = "example" THEN
    CRT "XOR.MOD11 ok"
    END
    //
    cipher = JBASE_CRYPT_BLOWFISH_BASE64
    key    = "Our Very Secret Key"
    str    = "String to encrypt"
    enc = ENCRYPT( str, key, cipher )
    CRT "Encrypted: " : enc
    dec = DECRYPT( enc, key, cipher )
    CRT "Decrypted: " : dec

Displays as output: 

     ROT13 ok
     XOR.MOD11 ok
     Encrypted: xuy6DXxUkD32spyfsKEvUtXrsjP7mC+R
     Decrypted: String to encrypt

Hashing

The ENCRYPT function now supports SHA-2 hashing algorithms.

JBC.h defineHashing algorithm
JBASE_SECUREHASH_SHA256SHA-2 family hashing algorithm
JBASE_SECUREHASH_SHA256_BASE64SHA256 with BASE64

Hashing Example

    INCLUDE JBC.h
    Key = "" ;* unused for hashing
    EncryptType = JBASE_SECUREHASH_SHA256_BASE64
    StrOut = ENCRYPT(StrIn, Key, EncryptType)

NOTES

See also: DECRYPT.

See also: Wiki

Last update: Sat, 16 Jul 2022 15:34